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1,894,271 | Renaming Bugs as "UnWritten Test Cases" | The Code Crusaders Story There was a team of superheroes called the "Code Crusaders". Their job was... | 0 | 2024-06-20T04:48:53 | https://dev.to/codejourney/renaming-bugs-as-unwritten-test-cases-3h0b | bugsarenewtestcases, notabug, xp |
**The Code Crusaders Story**
There was a team of superheroes called the "Code Crusaders". Their job was to protect the digital world from bad things like glitches and bugs.
One day, they got a call that a virus was causing trouble in Pixelville. The team went to fix it but discovered a very complex bug. They tried and tried but couldn't get rid of the bug.
Then their wise teacher said, "The bug isn't a bug in the code. It's a test you haven't written yet."
This made the team think in a new way.
Instead of seeing the mistake as a failure, they saw it as an opportunity to improve their testing.
They carefully researched the bug to understand how it works. Then they wrote new tests to catch such a bug next time. With new tests, they were finally able to beat the bug!
The people of Pixelville celebrated their heroes. Since then, the Code Crusaders have seen every bug as an opportunity to improve testing.
**True Lesson (Simply)**
Although the story is a hoax, it teaches an important true lesson about mistakes.
The reality is Bugs doesn't exists in real life, it's just some test cases they didn't wrote.
Instead of fixing the bug, you should write a new test for such a problem. That way it won't happen again.
Handling errors in this way changes your thinking. Not only will you react to mistakes, but you will be better able to prevent them.
It also helps teams work together better.
Instead of blaming, you investigate the error and improve your testing as a team.
This test-focused mindset keeps your skills sharp as technology changes. Testing must also adapt to changing user needs.
Seeing bugs as "missing tests" changes the way you develop software. This leads to higher quality code and a better user experience.
Meanwhille we can connect over
https://www.linkedin.com/in/ashish-codejourney/
https://x.com/codejourney_
| codejourney |
1,894,270 | My 100-Day DevOps Journey: Day 1 Recap | Today marks the beginning of my 100-day adventure into the world of DevOps. I'm diving into the... | 0 | 2024-06-20T04:43:09 | https://dev.to/dilshavijay/my-100-day-devops-journey-day-1-recap-1h2o | devops, 100daysofdevops, challenge, beginners | 
Today marks the beginning of my 100-day adventure into the world of DevOps. I'm diving into the practices, tools, and culture that define DevOps, aiming to not just learn technical skills but also foster a collaborative spirit between software development and IT teams.
#### What is DevOps?
I started by checking out Atlassian's definition of DevOps. Here’s what I found:
**DevOps is a set of practices, tools, and a cultural philosophy that automates and integrates the processes between software development and IT teams. It emphasizes team empowerment, cross-team communication and collaboration, and technology automation. The primary goal is to shorten the system development lifecycle and provide continuous delivery with high software quality.**
**Key Takeaways:**
- **Practices:** DevOps improves collaboration between development and operations, enabling faster and more reliable software delivery.
- **Tools:** Various tools automate and speed up processes, enhancing reliability and efficiency.
- **Culture:** DevOps fosters a collaborative culture, breaking down silos between teams and promoting shared responsibility.
#### The DevOps Lifecycle
The DevOps lifecycle has eight phases, each crucial for development and operations. Here's a quick rundown:
1. **Discover:** Teams explore, organize, and prioritize ideas aligned with strategic goals and customer impact.
2. **Plan:** Agile practices break work into manageable pieces, improving speed and quality.
3. **Build:** Version control systems like Git manage code and development workflows.
4. **Test:** Continuous Integration (CI) tests and merges code changes into a shared repository.
5. **Deploy:** Continuous Deployment (CD) automates frequent releases into production using feature flags.
6. **Operate:** IT services are delivered, including infrastructure design, implementation, and maintenance.
7. **Observe:** Monitoring and quickly resolving issues to maintain product uptime and performance.
8. **Evaluate:** Reports and feedback are generated to improve future releases and incorporate customer feedback.
#### Learning Resources and Tools
**DevOps Best Practices:**
I explored the importance of automation, continuous integration, and the cultural shift necessary for effective DevOps. For more details, check out [this guide on DevOps best practices](https://www.atlassian.com/devops/what-is-devops/devops-best-practices).
**Key Takeaways from a Quick Video:**
I watched a brief video titled "DevOps Explained in 5 Minutes | What is DevOps?" by Merlin. Here are the highlights:
- **Integration of Development and Operations:** DevOps bridges coding and IT operations, improving communication and reducing errors.
- **Automation and Tools:** Tools like microservices, virtual machines, and Infrastructure as Code (IAC) speed up processes and enhance reliability.
- **Continuous Integration:** Ensures ongoing code integration and infrastructure creation, boosting efficiency and quality.
**Additional Learning Resource:**
I found a promising Udemy course by Ranga that dives deeper into DevOps concepts, which seems like a valuable resource for my journey.
#### Final Thoughts for Day One
Today's deep dive into DevOps has given me a solid foundation for the days ahead. I've learned about the fundamental principles, lifecycle, and tools and practices that drive DevOps. I'm excited to continue this journey and look forward to sharing my progress and insights. Stay tuned for more updates as I navigate the world of DevOps! | dilshavijay |
1,894,267 | Ultimate Guide to Effective Project Progress Communication with Top Management | Effective communication of project progress to top management is pivotal for the success of any... | 0 | 2024-06-20T04:37:33 | https://dev.to/futuristicgeeks/ultimate-guide-to-effective-project-progress-communication-with-top-management-10id | webdev, leadership, teamlead, projectmanager | Effective communication of project progress to top management is pivotal for the success of any project. Beyond sharing updates, it involves presenting information in a way that is strategic, insightful, and aligned with organizational goals. This guide outlines advanced strategies and tips for project managers to convey progress to top management in a manner that is both influential and educational.
1. Understanding the Executive Perspective
2. Crafting Clear and Impactful Reports
3. Tailoring Communication Methods
4. Highlighting Achievements and Addressing Issues
5. Demonstrating Value
6. Fostering Transparency and Trust
7. Advanced Tools and Techniques for Reporting
8. A Real-Life Example
Get the full scoop! [Read more here](https://futuristicgeeks.com/ultimate-guide-to-effective-project-progress-communication-with-top-management/).
Visit our [website](https://futuristicgeeks.com) for more informative insights! | futuristicgeeks |
1,894,266 | Boost Your Coding Efficiency: 10 Productivity Tips for Developers | Hey there, code warrior! Ready to up your productivity game and make your coding sessions not just... | 0 | 2024-06-20T04:32:25 | https://dev.to/delia_code/boost-your-coding-efficiency-10-productivity-tips-for-developers-2b45 | productivity, career, codenewbie |
Hey there, code warrior! Ready to up your productivity game and make your coding sessions not just more efficient but also a lot more enjoyable? As developers, we often juggle numerous tasks, deadlines, and challenges that can affect our productivity and mental health. Enhancing productivity isn't just about working harder; it's about working smarter. Let’s dive into ten actionable tips to help you maximize your efficiency and maintain your mental well-being.
## 1. Prioritize Tasks with the Eisenhower Matrix
### Why It Matters
Ever feel like you're spinning your wheels, tackling tasks that don't really move the needle? That's where the Eisenhower Matrix comes in. It’s a super-effective way to sort out your priorities and focus on what truly matters.
### Actionable Steps:
- **Categorize Tasks**: Divide tasks into four categories: urgent and important, important but not urgent, urgent but not important, and neither.
- **Focus on What Matters**: Prioritize tasks that are both urgent and important. Schedule important but not urgent tasks to ensure long-term goals are met.
### Example:
Imagine your project deadlines are looming, and you also need to update your portfolio. By categorizing these tasks, you can focus on meeting deadlines first (urgent and important) and schedule time for portfolio updates later (important but not urgent).
### Benefits:
- Reduces overwhelm by breaking down tasks.
- Helps maintain focus on high-impact activities.
## 2. Implement the Pomodoro Technique
### Why It Matters
Finding it hard to concentrate for long periods? The Pomodoro Technique is like magic for your focus. It breaks your work into manageable chunks with regular breaks to keep your brain fresh.
### Actionable Steps:
- **Set a Timer**: Work for 25 minutes, then take a 5-minute break.
- **Repeat**: After four cycles, take a longer break of 15-30 minutes.
- **Use Tools**: Apps like [Pomodone](https://pomodoneapp.com/) or [Focus Booster](https://www.focusboosterapp.com/) can help track your Pomodoro sessions.
### Example:
You’re working on a complex bug fix. Set your timer for 25 minutes, dive deep into the code, then take a 5-minute break to stretch or grab a coffee. Repeat until the bug is squashed!
### Benefits:
- Enhances concentration and reduces burnout.
- Encourages regular breaks to maintain mental freshness.
## 3. Use Version Control Effectively
### Why It Matters
Lost code or conflicting changes can be a nightmare. Effective version control keeps your projects safe and your collaboration smooth.
### Actionable Steps:
- **Learn Git Basics**: Understand commands like commit, push, pull, and merge.
- **Branching Strategies**: Use branching strategies like Git Flow to manage your workflow efficiently.
- **Tools**: Utilize platforms like [GitHub](https://github.com/) or [GitLab](https://gitlab.com/) for collaboration.
### Example:
You’re adding a new feature while a teammate is fixing a bug. Using branches, you can work simultaneously without stepping on each other's toes. Once both are done, you can merge changes seamlessly.
### Benefits:
- Prevents code conflicts and loss.
- Simplifies collaboration with other developers.
## 4. Automate Repetitive Tasks
### Why It Matters
Doing the same task over and over again? Automation to the rescue! It saves you time and minimizes errors, allowing you to focus on more creative aspects of development.
### Actionable Steps:
- **Identify Repetitive Tasks**: Look for tasks you do repeatedly that can be automated.
- **Use Tools**: Employ tools like [Jenkins](https://www.jenkins.io/) for CI/CD, or [Zapier](https://zapier.com/) for workflow automation.
- **Write Scripts**: Create custom scripts for routine tasks.
### Example:
Setting up a new project? Automate the setup with scripts that install dependencies, initialize Git, and configure your environment.
### Benefits:
- Saves time and reduces manual errors.
- Frees up mental capacity for more complex problem-solving.
## 5. Practice Code Reviews
### Why It Matters
Want to write better code? Regular code reviews can help. They not only improve code quality but also foster a collaborative environment where learning is constant.
### Actionable Steps:
- **Regular Reviews**: Schedule regular code review sessions with your team.
- **Peer Feedback**: Encourage constructive feedback and open discussions on code improvements.
- **Tools**: Use platforms like [Bitbucket](https://bitbucket.org/) or GitHub’s pull request feature.
### Example:
Before merging new features, have a teammate review the code to catch potential bugs and suggest improvements. It’s like having a fresh pair of eyes on your work!
### Benefits:
- Enhances code quality and learning.
- Promotes collaboration and knowledge sharing.
## 6. Optimize Your Workspace
### Why It Matters
A cluttered workspace can lead to a cluttered mind. Optimizing your environment can boost your productivity and keep you comfortable.
### Actionable Steps:
- **Ergonomic Setup**: Invest in an ergonomic chair and desk setup.
- **Declutter**: Keep your workspace organized to minimize distractions.
- **Lighting and Plants**: Ensure good lighting and consider adding plants to improve air quality and mood.
### Example:
A well-lit desk with a comfortable chair, a few plants, and a tidy surface can transform your workspace into a productivity powerhouse.
### Benefits:
- Reduces physical strain and discomfort.
- Creates a conducive environment for focus and creativity.
## 7. Invest in Continuous Learning
### Why It Matters
Tech evolves rapidly. Continuous learning keeps you ahead of the curve and opens up new opportunities.
### Actionable Steps:
- **Online Courses**: Take courses on platforms like [Coursera](https://www.coursera.org/) or [Udemy](https://www.udemy.com/).
- **Read Books and Blogs**: Stay updated with the latest trends and best practices.
- **Attend Meetups**: Join local or virtual developer meetups and conferences.
### Example:
Dedicate an hour a week to learning a new framework or tool. It could be the key to solving your next big project challenge or landing a dream job.
### Benefits:
- Keeps your skills current and marketable.
- Stimulates intellectual growth and creativity.
## 8. Maintain a Healthy Work-Life Balance
### Why It Matters
All work and no play can lead to burnout. Balancing work and personal life is crucial for long-term productivity and happiness.
### Actionable Steps:
- **Set Boundaries**: Define clear working hours and stick to them.
- **Schedule Downtime**: Allocate time for hobbies, exercise, and relaxation.
- **Disconnect**: Turn off work notifications during personal time.
### Example:
Finish work by 6 PM, then go for a run or read a book. Disconnect from work emails and messages to recharge.
### Benefits:
- Prevents burnout and promotes mental well-being.
- Improves overall productivity and job satisfaction.
## 9. Use Project Management Tools
### Notion
**Use for**: Task management, note-taking, and collaboration.
**Actionable Steps**:
- **Organize**: Use Notion to organize tasks, projects, and notes in one place.
- **Collaborate**: Share documents and collaborate with team members on shared projects.
- **Templates**: Utilize Notion’s templates for project planning, task lists, and meeting notes.
### Benefits:
- Centralizes your work, enhances productivity, and improves team collaboration.
- Offers a versatile platform for various types of content and organization.
### Obsidian
**Use for**: Personal knowledge management and note-taking.
**Actionable Steps**:
- **Interconnected Notes**: Create a knowledge base using interconnected notes.
- **Markdown**: Use markdown for easy formatting and linking of notes.
- **Graph View**: Visualize the relationships between your notes with Obsidian’s graph view.
### Benefits:
- Enhances learning and retention of information, making it easier to manage complex topics.
- Supports in-depth research and personal knowledge management.
### Other Tools: Trello, Asana, and JIRA
**Actionable Steps**:
- **Choose a Tool**: Use tools like [Trello](https://trello.com/), [Asana](https://asana.com/), or [JIRA](https://www.atlassian.com/software/jira).
- **Create Boards and Lists**: Organize tasks using boards, lists, and cards.
- **Set Deadlines**: Assign deadlines to tasks to ensure timely completion.
### Benefits:
- Provides a clear overview of project progress.
- Enhances team collaboration and task management.
## 10. Take Care of Your Mental Health
### Why It Matters
Your mental health is as important as your physical health. Taking care of it ensures you stay productive and happy.
### Actionable Steps:
- **Regular Exercise**: Incorporate physical activity into your daily routine.
- **Mindfulness and Meditation**: Practice mindfulness or meditation using apps like [Headspace](https://www.headspace.com/) or [Calm](https://www.calm.com/).
- **Seek Support**: Don’t hesitate to talk to a professional if you’re feeling overwhelmed.
### Example:
Start your day with a 10-minute meditation session to clear your mind, or end your workday with a workout to destress.
### Benefits:
- Improves mental clarity and emotional resilience.
- Helps manage stress and maintain a positive outlook.
Boosting your productivity as a developer involves more than just adopting the right tools and techniques. It’s about creating a balanced workflow that promotes efficiency and supports your mental well-being. By implementing these actionable steps and leveraging powerful tools like Notion and Obsidian, you can enhance your coding efficiency and reduce stress. | delia_code |
1,894,265 | AMAN 4 | BEAUTY FACE MATE POWDER... | 0 | 2024-06-20T04:27:03 | https://dev.to/muhammad_zaid_56daaff0697/aman-4-3gej | {% embed https://youtu.be/5pp9xXQBtwQ?si=4iCKoBd73ASClHDT %} | muhammad_zaid_56daaff0697 | |
1,894,264 | What are the current trends in web development? | After being a web developer, it's clear that knowing how to code is not enough! But you have to... | 0 | 2024-06-20T04:26:58 | https://dev.to/joyanderson1702/what-are-the-current-trends-in-web-development-32b1 | webdev, learning, programming, tooling | After being a web developer, it's clear that knowing how to code is not enough! But you have to update yourself with the latest trends in web development. Knowing current trends not only helps you develop web applications but is also revolutionizing the way websites are developed.
According to an Adobe study, 59% of clients need extraordinary websites that use the latest technologies, while 41% of clients want minimalistic websites. To build incredible websites, you need to stay up to date with the latest technologies and trends to create robust web applications.
**So, let’s go deep down into what are the ongoing trends in web development;**
**1. Headless CMS**
- Now, clients are choosing headless CMS instead of monolithic CMS because it provides flexibility, seamless experience, and enhanced security in web application development.
- Headless CMS allows developers to build custom websites using their preferred front-end frameworks and technologies without decreasing the experience of web applications.
- There are many headless CMS platforms, including Strapi, Sanity, Contentful, Directus, and many more.
**2. Progressive Web Apps(PWA)**
- PWA gained high popularity in the market due to its high-quality user experience and replaced native mobile apps on the web.
- The PWA offers both web and mobile app experience without the need to install both apps from different distribution platforms.
- It offers seamless integration, offline work, fast work, storage and power saving, seamless updating and maintenance, and more. Here are a few examples of PWA: Twitter lite, Pinterest, Spotify, Telegram and many more.
**3. Single-Page Applications (SPAs)**
- SPA is one of the most current trends in web development. It contains a single page that is loaded initially and after updating dynamic content on the same page.
- It supports offline, enhances speed, reduces server load time, and faster content delivery, responsiveness, easy navigation, and many more.
- Several frameworks are used to build SPAs, such as React, Angular, VueJS, NextJs, and many more.
**4. Micro Frontends**
- Micro Frontends are inspired by Microservices. Using micro frontend techniques, developers can create smaller independent components that can be developed, tested, and deployed independently from each team.
- It allows developers to develop feature-rich, seamless, complex, single-page applications without any hassle.
- Using this technique, developers can choose different tech stacks, which offer flexibility and better management for large databases; each team can work on its components without interfering with each other.
**5. No-Code/Low-Code Development Platform**
- Suppose anyone wants to develop web applications without coding. So, no code development platform is the best choice. It provides drag-and-drop features to create web user interfaces.
- It offers faster development and reduces costs, and even non-technical people can create and manage their websites.
- Here are some examples of no-code development platforms: Nintex and Outsystems, Bubble, Zapier, and many more. Low code development platforms such as Zoho Creator, Quickbase, AppSheet, and many more.
Staying updated with the latest trends and technologies is essential for every developer to create seamless and robust web applications for end clients. The above trends are not enough to keep you updated. There are other trends, too, such as AI/ML integration, Voice search optimization, Motion UI, Serverless computing, Serverless architecture, Jamstack architecture, dark mode UI, API-first development, and many more.
If you’re looking for the best [web development company](https://wp-dev.green-apex.com/web-app-development) that can leverage the latest trends in your application, then contact Green Apex at hello@green-apex.com. They have a vast knowledge of web developers who have expertise in developing PWA, single-page applications, headless CMS, and many more.
| joyanderson1702 |
1,894,259 | Salah reminder Apple Shortcuts in Bahasa Indonesia | Shortcut link : https://www.icloud.com/shortcuts/faad766c51f448c4888239b07401188d Daftar... | 0 | 2024-06-20T04:10:20 | https://dev.to/azet/salah-reminder-in-bahasa-indonesia-1036 | ios, appleshortcuts |
**Shortcut link :** [https://www.icloud.com/shortcuts/faad766c51f448c4888239b07401188d](https://www.icloud.com/shortcuts/faad766c51f448c4888239b07401188d)
## Daftar isi :
- [Cara kerja](https://gist.github.com/alizaenazet/d3afe9529d1eba8968d4b6bbc9b22002#cara-kerja-)
- [Cara menggunakan](https://gist.github.com/alizaenazet/d3afe9529d1eba8968d4b6bbc9b22002#cara-menggunakan)
- [Cara automasi setiap awal hari](https://gist.github.com/alizaenazet/d3afe9529d1eba8968d4b6bbc9b22002#automasi-untuk-setiap-awal-hari)
- [Memilih referensi acuan waktu sholat](https://gist.github.com/alizaenazet/d3afe9529d1eba8968d4b6bbc9b22002#memilih-metode-referensi-waktu-sholat)
- [List Kementrian/Metode jadwal sholat](https://gist.github.com/alizaenazet/d3afe9529d1eba8968d4b6bbc9b22002#referensi-metode-yang-anda-dapat-pilih-pada-tabel-berikut-)
Seringkali sebagai muslim memerlukan peringatan jam waktu datangnya sholat, sebagian besar orang-orang menggunakan aplikasi untuk meningatkan waktu sholat, yang menurut saya berlebihan sebab kita dapat melakukannya dengan kelender, ditambah lagi sebagian aplikasi memberikan peringatan dengan suara adzan yang berlebihan sehingga terkadang membuat kita keberatan saat dalam keadaan sibuk dan aplikasi tidak mengingatkan kita saat waktu sholat akan segeara datang, terkadang kita lupa melaksanakan sholat maka dari itu sebelum waktu sholat berikutnya maka seharusnya terdapat peringatan untuk bersiap-siap terlebih dahulu.
*Shortcuts* ini memang sengaja hanya saya tujukan untuk mengatur waktu sholat dalam seharian saja, sebab waktu sholat dapat berubah walaupun tidak signifikan tetapi itu perlu diperhatikan, sehingga menurut saya kita hanya perlu melakukan iterasi/pengulangan diawal hari yang mana itu juga telah termasuk fitur yang terdapat pada aplikasi **Shortcut**
`Salah reminder` adalah **Shortcut** yang dapat dijalankan aplikasi `Shortcut` pada apple device seperti mac, ipad, ios dll.
|  | <br> |
| ------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------- |
*program shortcut* ini memperlukan internet sebab akan meminta informasi jadwal sholat yang akurat untuk setiap harinya dalam rangka meminimalisir waktu sholat yang tidak akurat.
|  |  |
| ------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
*Penggunaan **Shortcut** yang akan melakukan penjadwalan seharian dan memberikan peringatan saat waktu sholat akan tiba dan saat telah tiba*
## Cara kerja :
**Shortcut** tersebut akan meminta lokasi anda lalu akan memasang jadwal sholat 5 waktu dikalender kalia dengan peringatan 30 menit sebelum waktu sholat datang dan waktu sholat telah datang.
Saya menyarankan untuk menggunakan pada awal hari agar dapat membantu anda dalam mengetahui waktu sholat sekaligus memingatkan diri anda.
Shortcut ini dapat anda kombinasikan dengan fitur *Automation*,
## Cara menggunakan
### 1. Gunakan link berikut untuk mendapatkan shortcut
**Shortcut link :** www.icloud.com/shortcuts/cb5a2b226d94448f8a935225a04d98a3
### 2. Klik pada tombol `Add Shortcut`
| ios device | mac |
| ---------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
| <br><br> |  |
### Jalankan untuk pertama kali
Setelah **Shortcut** berhasil ditambahkan maka lebih baik menjalankannya untuk pertama kali agar dapat dimintai dan sekaligus memberikan izin pada **Shortcut** untuk mengakses Lokasi melalui perangkat anda, dikarenakan kebutuhan dalam menentukan waktu sholat yang lebih akurat.
| steps | preview |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| Berikan izin dalam mengakses lokasi terkini anda |  |
| Berikan izin `Always Allow` dalam mengakses lokasi anda agar dapat<br>meminta lokasi setiap kali dijalankan kembali. | <br> |
| ***(Jika)*** berhasil tanpa gangguan | <br> |
| ***(Mungkin)*** anda mendapati masalah seperti berikut. Jangan khawatir <br>hanya anda perlu sedikit tindakan <br>saja, ikuti langkah selanjutnya | <br><br><br><br><br><br><br> |
| Klik pada icon menum yang terletak pada bagian pojok kanan atas. | <br><br><br><br><br><br> |
| klik pada icon menu *Settings* pada bagian atas sebelah kanan | <br><br><br> |
| - Masuk ke menu **Privacy**<br>- Berikan izin untuk seluruh akses yang belum.<br>- Klik pada tombol `Done`<br>- Kini telah siap anda jalankan <br>kembali shortcut tersebut. | <br><br><br> |
## Automasi untuk setiap awal hari
Hanya tersedia untuk **device Ipad dan Ios**
menjalankan **Shortcut** tersebut secara manual setiap hari mungkin adalah ide buruk, maka dengan memberikan Automasi akan sangat membantu kita kedepannya. berikut adalah autmasi pada *Shortcut App* saya mungkin bisa anda ikuti.
| | |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| - Buka menu *"Automation"* <br>- klik pada pojok kanan atas icon menu "*Tambah* `+` "<br> | <br><br><br><br><br><br> |
| pilih opsi *Create Personal Automation* | <br><br><br> |
| **pilih menu Time of day**, untuk menjalankan automasi <br>berdasarkan waktu tertentu | <br><br><br> |
| - pilih opsi *Time of Day*<br>- tentukan pada jam berapa automasi akan dijalankan secara otomatis<br>- tekan *next* | <br><br><br> |
| - pilih menu *Add Action* untuk memilih tindakan yang akan dijalankan<br>- tekan next | <br><br><br> |
| pilh opsi *Run Shortcut*, dimana akan menjalankan sebuah **Shortcut** <br>pada automasi dijalankan | <br><br><br> |
| sekarang anda perlu menunjukan sebuah **Shortcut** yang akan<br>dijalankan | <br><br><br> |
| pilih **Salah reminder shortcut** dan klik menu *Next* | <br><br><br> |
| matikan opsi *Ask Before running* untuk memastikan automasi berjalan<br>sendirinya tanpa meminta konfirmasi<br>kepada anda dan selesaikan tahapan<br>dengan menekan menu *Done* | <br><br><br> |
| sekarang Shortcut anda akan berjalan setiap hari pada perangkat<br>anda untuk mengatur jadwal sholat<br>sehari penuh. | <br><br><br> |
## Memilih metode referensi waktu sholat
waktu tiba sholat mungkin perlu anda sesuaikan dengan kebutuhan anda, hal ini memungkinkan anda dalam mengatur lembaga yang dapat anda sesuaikan.
secara *default* **Shortcut** menggunakan mengacu pada *KEMENAG* dengan kode **20**.
*`20` Berartikan menggunakan metode jadwal sholat **KEMENAG***
anda dapat mengubannya dengan mengikuti cara berikut :
| steps | preview |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| Klik pada icon menum yang terletak pada bagian pojok kanan atas. |  |
| anda sekarang dapat melihat seluruh isi dibalik shortcut tersebut, <br>anda dapat merubah nilai pada **Note** pada bagian atas dengan kode yang anda<br>inginkan berdasarkan kebutuhan anda.<br>[[Salah reminder#referensi metode yang anda dapat pilih pada tabel berikut]] |  |
### referensi metode yang anda dapat pilih pada tabel berikut :
<table id="T_7ecc6">
<thead>
<tr>
<th class="blank level0" > </th>
<th id="T_7ecc6_level0_col0" class="col_heading level0 col0" >NAME</th>
<th id="T_7ecc6_level0_col1" class="col_heading level0 col1" >CODE</th>
</tr>
</thead>
<tbody>
<tr>
<th id="T_7ecc6_level0_row0" class="row_heading level0 row0" >0</th>
<td id="T_7ecc6_row0_col0" class="data row0 col0" >MWL-Muslim World League </td>
<td id="T_7ecc6_row0_col1" class="data row0 col1" >3</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row1" class="row_heading level0 row1" >1</th>
<td id="T_7ecc6_row1_col0" class="data row1 col0" >ISNA-Islamic Society of North America (ISNA) </td>
<td id="T_7ecc6_row1_col1" class="data row1 col1" >2</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row2" class="row_heading level0 row2" >2</th>
<td id="T_7ecc6_row2_col0" class="data row2 col0" >EGYPT-Egyptian General Authority of Survey </td>
<td id="T_7ecc6_row2_col1" class="data row2 col1" >5</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row3" class="row_heading level0 row3" >3</th>
<td id="T_7ecc6_row3_col0" class="data row3 col0" >MAKKAH-Umm Al-Qura University, Makkah </td>
<td id="T_7ecc6_row3_col1" class="data row3 col1" >4</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row4" class="row_heading level0 row4" >4</th>
<td id="T_7ecc6_row4_col0" class="data row4 col0" >KARACHI-University of Islamic Sciences, Karachi </td>
<td id="T_7ecc6_row4_col1" class="data row4 col1" >1</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row5" class="row_heading level0 row5" >5</th>
<td id="T_7ecc6_row5_col0" class="data row5 col0" >TEHRAN-Institute of Geophysics, University of Tehran </td>
<td id="T_7ecc6_row5_col1" class="data row5 col1" >7</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row6" class="row_heading level0 row6" >6</th>
<td id="T_7ecc6_row6_col0" class="data row6 col0" >JAFARI-Shia Ithna-Ashari, Leva Institute, Qum </td>
<td id="T_7ecc6_row6_col1" class="data row6 col1" >0</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row7" class="row_heading level0 row7" >7</th>
<td id="T_7ecc6_row7_col0" class="data row7 col0" >GULF-Gulf Region </td>
<td id="T_7ecc6_row7_col1" class="data row7 col1" >8</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row8" class="row_heading level0 row8" >8</th>
<td id="T_7ecc6_row8_col0" class="data row8 col0" >KUWAIT-Kuwait </td>
<td id="T_7ecc6_row8_col1" class="data row8 col1" >9</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row9" class="row_heading level0 row9" >9</th>
<td id="T_7ecc6_row9_col0" class="data row9 col0" >QATAR-Qatar </td>
<td id="T_7ecc6_row9_col1" class="data row9 col1" >10</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row10" class="row_heading level0 row10" >10</th>
<td id="T_7ecc6_row10_col0" class="data row10 col0" >SINGAPORE-Majlis Ugama Islam Singapura, Singapore </td>
<td id="T_7ecc6_row10_col1" class="data row10 col1" >11</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row11" class="row_heading level0 row11" >11</th>
<td id="T_7ecc6_row11_col0" class="data row11 col0" >FRANCE-Union Organization Islamic de France </td>
<td id="T_7ecc6_row11_col1" class="data row11 col1" >12</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row12" class="row_heading level0 row12" >12</th>
<td id="T_7ecc6_row12_col0" class="data row12 col0" >TURKEY-Diyanet İşleri Başkanlığı, Turkey (experimental) </td>
<td id="T_7ecc6_row12_col1" class="data row12 col1" >13</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row13" class="row_heading level0 row13" >13</th>
<td id="T_7ecc6_row13_col0" class="data row13 col0" >RUSSIA-Spiritual Administration of Muslims of Russia </td>
<td id="T_7ecc6_row13_col1" class="data row13 col1" >14</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row14" class="row_heading level0 row14" >14</th>
<td id="T_7ecc6_row14_col0" class="data row14 col0" >MOONSIGHTING-Moonsighting Committee Worldwide (Moonsighting.com) </td>
<td id="T_7ecc6_row14_col1" class="data row14 col1" >15</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row15" class="row_heading level0 row15" >15</th>
<td id="T_7ecc6_row15_col0" class="data row15 col0" >DUBAI-Dubai (experimental) </td>
<td id="T_7ecc6_row15_col1" class="data row15 col1" >16</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row16" class="row_heading level0 row16" >16</th>
<td id="T_7ecc6_row16_col0" class="data row16 col0" >JAKIM-Jabatan Kemajuan Islam Malaysia (JAKIM) </td>
<td id="T_7ecc6_row16_col1" class="data row16 col1" >17</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row17" class="row_heading level0 row17" >17</th>
<td id="T_7ecc6_row17_col0" class="data row17 col0" >TUNISIA-Tunisia </td>
<td id="T_7ecc6_row17_col1" class="data row17 col1" >18</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row18" class="row_heading level0 row18" >18</th>
<td id="T_7ecc6_row18_col0" class="data row18 col0" >ALGERIA-Algeria </td>
<td id="T_7ecc6_row18_col1" class="data row18 col1" >19</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row19" class="row_heading level0 row19" >19</th>
<td id="T_7ecc6_row19_col0" class="data row19 col0" >KEMENAG-Kementerian Agama Republik Indonesia </td>
<td id="T_7ecc6_row19_col1" class="data row19 col1" >20</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row20" class="row_heading level0 row20" >20</th>
<td id="T_7ecc6_row20_col0" class="data row20 col0" >MOROCCO-Morocco </td>
<td id="T_7ecc6_row20_col1" class="data row20 col1" >21</td>
</tr>
<tr>
<th id="T_7ecc6_level0_row21" class="row_heading level0 row21" >21</th>
<td id="T_7ecc6_row21_col0" class="data row21 col0" >PORTUGAL-Comunidade Islamica de Lisboa </td>
<td id="T_7ecc6_row21_col1" class="data row21 col1" >22</td>
</tr>
</tbody>
</table>
| azet |
1,894,263 | AMNA 3 | LADIES EYE SHADE KIT FOR... | 0 | 2024-06-20T04:26:16 | https://dev.to/muhammad_zaid_56daaff0697/amna-3-5b7f | {% embed https://youtu.be/nrGCdVIgrDs?si=BzkGHz3Laf8OPhsI %} | muhammad_zaid_56daaff0697 | |
1,894,262 | AMNA 2 | TODAY SHOW MY SEVEN HERBAL... | 0 | 2024-06-20T04:21:56 | https://dev.to/muhammad_zaid_56daaff0697/amna-2-36n5 | {% embed https://youtu.be/JixNFC29eWs?si=LkXlahqoe9WCicgA %} | muhammad_zaid_56daaff0697 | |
1,894,261 | AMNA 1 | TODAY I GIVE REVIEW ON... | 0 | 2024-06-20T04:21:04 | https://dev.to/muhammad_zaid_56daaff0697/amna-1-1ed2 | {% embed https://youtu.be/dRaAirc9sYM?si=uNGYVACmIwAOFGcL %} | muhammad_zaid_56daaff0697 | |
1,894,260 | Exploring ZNTECH New Energy Technology's Innovations | Exploring ZNTECH New Energy Technology's Innovations Can you need to find out about the charged... | 0 | 2024-06-20T04:11:58 | https://dev.to/laura_hills_aeae9d9e7a982/exploring-zntech-new-energy-technologys-innovations-1nf1 | design |
Exploring ZNTECH New Energy Technology's Innovations
Can you need to find out about the charged energy that has been latest developed by ZNTECH. You are in the area specific is correct, we will explore the innovations of ZNTECH how they could gain ones.
Advantages of ZNTECH's New Energy Technology
ZNTECH's new energy technology has value that are many. First, it is significantly green than antique energy resources. By ZNTEC utilizing H brand name energy which was Utility Energy Storage brand new, we could reduce our carbon influence that help protect the planet. second, ZNTECH's more recent energy technologies is many affordable than mainstream power, that will help you save your self funds within the run which was very long. Finally, ZNTECH's energy technology which was current is more dependable than antique energy resources, with power outages because interruptions so you can not require to concern yourself.
Innovations
One of the main innovations of ZNTECH's new energy technology is their capacity to create energy that was renewable. This implies the vigor produced by ZNTECH's brand name energy which was newer could possibly be replenished, unlike main stream energy resources that be determined by finite resources. Another innovation of ZNTECH's brand name energy which was newer will be the genuine means it generates electricity. ZNTECH's brand name energy which are latest operates on the all procedure called photovoltaics, which converts sunlight into electricity. Meaning ZNTECH's energy technology which are latest may also produce electricity on cloudy days.
Safety
When it comes to energy, safety is the concern that was top. ZNTECH's more recent energy technology is fairly safer to utilize. Unlike old fashioned energy resources, there is no risk of explosions since fires. Furthermore, ZNTECH's new energy technology is very fix that are low this implies you will find problems minimal making use of their use.
Using
Using ZNTECH's more recent energy technology is simple. All you need to accomplish are install panel which was solar all on your own roof to work with it to power home. These panels being collect that are solar change it out into Home Energy Storage electricity, that will effortlessly be placed to power your property. To utilize ZNTECH's energy technology which can be latest to power your car or truck, you simply have to charge the battery power with a area that was payment.
Service
At ZNTECH, we pride ourselves on providing customer service which will be excellent. You could expect lots of methods to their consumers, like installation, maintenance, fix of our energy technology which are latest. we offer help their consumers after the installation to make certain that they truly are quite happy with the effectiveness of our goods.
Quality
Regarding power that was current, quality is vital. At ZNTECH, we utilize the equipment which can be standard best products inside our merchandise. We testing our items rigorously to make sure they meet our specifications being greater. What this means is as soon you could be confident you might be receiving a product that was top notch can last for quite a while as you determine ZNTECH.
Application
ZNTECH's more energy recent can be used in many ways that are different. As an example, it could be used to power homes, organizations, automobiles. It's also used by lots of most applications, such as powering streetlights, powering connection methods, providing electricity to remote shops.
Utility energy storage products which was latest is a superb selection for whoever wants to invest less, help the surroundings, and luxuriate in energy that are dependable. Their covered either you wish to power your premises solar energy panels because charge your truck or car as vehicle having the asking your center, ZNTECH's energy technology which are latest has. client which was excellent, Commercial And Industrial Energy Storage top quality goods, numerous applications, it is no ponder that ZNTECH is a frontrunner in neuro scientific more recent energy technology. | laura_hills_aeae9d9e7a982 |
1,894,258 | Setting up NVIDIA stuff on Pop!_OS | I had a lot of trouble with Ubuntu+NVIDIA which I solved by just installing PopOS. On Ubuntu I was... | 0 | 2024-06-20T04:03:41 | https://dev.to/tallesl/setting-up-nvidia-stuff-on-popos-3o17 | ubuntu, nvidia, linux | I had a lot of trouble with Ubuntu+NVIDIA which I solved by just installing PopOS. On Ubuntu I was getting small 'hiccups' all the time (my machine was freezing for a few seconds) and sometimes crashed under heavy video usage.
Technically PopOS is just Ubuntu under the hood, so it shouldn't be better when compared to a well-configured Ubuntu. Maybe it's me sucking setting up the driver myself. Maybe the NVIDIA-specific ISO has some secret sauce not easily achievable. Probably both.
Before we start, here is the machine I'm using:
Fresh from the installation I already had NVIDIA settings installed and showing my card temperature, what a relief:
The PowerMizer setting was a little stubborn. I want to always be on "Prefer Maximum Performance", but it ended up losing my settings once I rebooted. I fixed by adding those two commands to run at startup:
```
nvidia-settings -a '[gpu:0]/GPUPowerMizerMode=1'
system76-power profile performace
```
Next, let's proceed and get `nvtop` for verifying the GPU usage and `glxgears` to run something on it:
```
sudo apt install nvtop mesa-utils
```
Let's put CUDA on this thing and test it out with PyTorch:
```
$ sudo apt install nvidia-cuda-toolkit
$ python3 -m venv venv
$ . venv/bin/activate
$ pip install torch
$ python3
>>> import torch
>>> torch.cuda.get_device_name(0)
'NVIDIA GeForce RTX 2060'
``` | tallesl |
1,894,257 | สัญญาณเตือน ที่ธุรกิจต้องจ้างบริษัทรับทําเว็บไซต์มาช่วยแก้วิกฤต | เว็บร้างไร้คนเข้าเยี่ยมชม ประเดิมกันที่ข้อแรกที่ดูเหมือนจะเป็นสัญญาณเตือนที่ชัดที่สุด... | 0 | 2024-06-20T04:00:01 | https://dev.to/c3cugjc7666/sayyaanetuuen-thiithurkicchtngcchaangbrisathrabthmaaewbaichtmaachwyaekwikrt-3p76 | 1. เว็บร้างไร้คนเข้าเยี่ยมชม
ประเดิมกันที่ข้อแรกที่ดูเหมือนจะเป็นสัญญาณเตือนที่ชัดที่สุด ทำเว็บไซต์มาแต่คนเข้าเยี่ยมชมเว็บไซต์ไม่เป็นไปตามเป้า และเริ่มน้อย ๆ ลงเรื่อย จนท้ายที่สุดกลายเป็นเว็บร้างที่ถูกลืม สืบค้นก็หาไม่เจอ จำเป็นอย่างยิ่งที่ต้องให้ผู้เชี่ยวชาญระดับมืออาชีพเข้ามาช่วยกู้ชีพ ปรับปรุง แก้ไข และพัฒนาเว็บไซต์แบบด่วน ๆ
2. เว็บรกไม่น่าชม
ขนาดคุณเองที่เป็นเจ้าของเว็บไซต์ยังสัมผัสได้ถึงความรก ไม่เป็นระเบียบ ข้อมูลกระจัดกระจายไม่น่าชม ซึ่งลูกค้าผู้ที่เข้าใช้งานเว็บไซต์ก็คงรู้สึกไม่แตกต่างจากคุณเท่าไหร่ ซึ่งจำเป็นอย่างยิ่งที่ต้องให้บริษัทรับทําเว็บไซต์เข้ามาช่วยออกแบและปรับโครงสร้างเว็บไซต์เสียใหม่
3. ค่าโฆษณาบนแพลตฟอร์มต่าง ๆ เริ่มสูงขึ้น
เมื่อมีผู้สนใจทำธุรกิจออนไลน์มากขึ้น จึงไม่แปลกที่ค่าใช้จ่ายต่าง ๆ จะเพิ่มขึ้นตามปริมาณความต้องการ โดยเฉพาะค่า Ads หรือค่าโฆษณาที่จำเป็นอย่างยิ่งในการทำการตลาดออนไลน์ หากคุณยังฝากธุรกิจไว้กับแพลตฟอร์มอื่น ๆ ก็จำเป็นต้องเสียค่า Ads ตามเงื่อนไขของแพลตฟอร์มนั้น ๆ แต่หากคุณมีเว็บไซต์ที่มีคุณภาพเป็นของตัวเอง ก็ไม่จำเป็นต้องจ่ายค่าโฆษณาที่สูงขึ้นตาม Demand แถมยังทำงานและลงโฆษณาเองได้อย่างอิสระ ไม่มีกฎเกณฑ์เงื่อนไขใด ๆ มาตีกรอบให้หงุดหงิดใจ
4. ต้องการเพิ่มประสิทธิภาพของ SEO
http://xn--c3cugjc8cxav6e2a9j2bxb0e.com | c3cugjc7666 | |
1,894,256 | Exploring Rupee Games: Fun, Rewards, and More | Welcome to the world of Rupee Games, where fun and excitement await! Rupee Games is an online gaming... | 0 | 2024-06-20T03:52:20 | https://dev.to/fghnmj/exploring-rupee-games-fun-rewards-and-more-4dmp | Welcome to the world of Rupee Games, where fun and excitement await! Rupee Games is an online gaming platform that offers a wide range of games and opportunities to win real rewards. In this article, we will explore what makes Rupee Games so special, including its diverse game selection, competitive tournaments, attractive rewards, user-friendly interface, innovative features, and vibrant community.
Wide Variety of Games Available
Rupee Games offers a wide variety of games that cater to different interests and preferences. Whether you enjoy card games, puzzle games, or fantasy sports, there's something for everyone. Classic card games like Rummy and Poker are popular choices among players. These games require skill and strategy, making them both challenging and rewarding. For those who enjoy quick thinking and problem-solving, there are numerous puzzle games that test your mental agility. Fantasy sports allow players to create their dream teams and compete against others, adding an element of real-world excitement to the gaming experience. With such a diverse selection, Rupee Games ensures that players never run out of options and can always find something new and exciting to play.
Exciting Tournaments and Events
One of the highlights of Rupee Games is its exciting tournaments and events. These competitions bring an extra level of thrill and competition to the gaming experience. Players can participate in daily, weekly, and monthly tournaments, competing against others to win attractive prizes. These events often feature leaderboards, where top players are showcased and rewarded for their skills. Tournaments can range from solo challenges to team-based competitions, allowing players to choose the format that suits them best. The competitive atmosphere and the chance to win big prizes make these tournaments a favorite among Rupee Games players. They also provide an opportunity to test your skills against the best and improve your gameplay.
Attractive Rewards and Bonuses
Rupee Games is known for its attractive rewards and bonuses, which keep players coming back for more. From welcome bonuses for new players to daily rewards for regular users, there are plenty of opportunities to earn extra benefits. Cash prizes, gift vouchers, and exclusive in-game items are just some of the rewards that players can win. The platform also offers loyalty programs, where players can earn points for their activities and redeem them for exciting rewards. Special promotions and events often provide additional chances to earn bonuses, making the gaming experience even more rewarding. These incentives not only add to the excitement but also provide tangible benefits that enhance the overall experience of playing Rupee Games.
User-Friendly and Easy Navigation
Navigating [Rupee Games](https://rupeegames.bio.link/) is a breeze, thanks to its user-friendly design. The platform is designed to be intuitive and easy to use, ensuring that even new players can quickly find their way around. The layout is clean and organized, with games categorized for easy access. Players can search for their favorite games or browse through different categories to discover new ones. The process of signing up, depositing money, and withdrawing winnings is straightforward and secure. Rupee Games also offers a mobile-friendly version, allowing players to enjoy their favorite games on the go. Whether you're playing on a computer or a mobile device, Rupee Games ensures a smooth and hassle-free experience.
Innovative Features Enhance Gameplay
Rupee Games constantly introduces innovative features to enhance the gameplay experience. These features add new dimensions to the games, making them more engaging and fun. Interactive tutorials help new players learn the ropes and improve their skills. Live multiplayer modes allow players to compete against others in real-time, adding a social element to the gaming experience. Special game modes and challenges keep the gameplay fresh and exciting. Rupee Games also uses advanced technology to ensure fair play and security, providing a safe environment for all players. These innovations not only improve the quality of the games but also keep players engaged and coming back for more.
Community and Social Interaction
Rupee Games fosters a strong sense of community and social interaction among its players. The platform offers various ways for players to connect and interact with each other. Players can join clubs and groups based on their interests, participate in forums and discussions, and share their gaming experiences. Social features such as friend lists, chat options, and in-game messaging allow players to communicate and collaborate with others. Special community events and challenges provide opportunities for players to team up and compete together. This sense of community adds a social dimension to the gaming experience, making it more enjoyable and fulfilling.
Conclusion:
Rupee Games offers a unique and exciting gaming experience that combines fun, competition, and rewards. With its wide variety of games, exciting tournaments, attractive rewards, user-friendly interface, innovative features, and strong community, it has something for everyone. Whether you're a casual player looking for some fun or a competitive gamer seeking big rewards, Rupee Games is the perfect platform for you. Join the Rupee Games community today and start your journey into a world of endless entertainment and excitement.
Questions and Answers:
Q1: What types of games are available on Rupee Games?
A: Rupee Games offers a wide variety of games, including card games like Rummy and Poker, puzzle games, and fantasy sports. There's something for everyone to enjoy.
Q2: How can I participate in tournaments on Rupee Games?
A: You can participate in daily, weekly, and monthly tournaments by signing up on the Rupee Games platform and joining the events. Compete against others to win attractive prizes. | fghnmj | |
1,894,255 | 10 Reasons Your Side Projects Aren't Making Money (And How to Fix Them!) | Starting a side project with the hope of turning it into a profitable venture is exciting, but many... | 0 | 2024-06-20T03:52:04 | https://dev.to/delia_code/10-reasons-your-side-projects-arent-making-money-and-how-to-fix-them-hh | webdev, career, beginners, softwaredevelopment | Starting a side project with the hope of turning it into a profitable venture is exciting, but many people encounter roadblocks along the way. Let’s explore why many side projects fail to make money and how you can steer clear of these pitfalls to find success.
## 1. Lack of Market Research
### Why It’s a Problem
Many side projects fail because the creators don’t take the time to understand their market. If you don’t know who your target audience is or what they need, your product might not meet market demand.
### How to Fix It
Conduct thorough market research before you start. Use tools like Google Trends, surveys, and forums to understand what potential customers are looking for. Analyze your competitors to see what’s working for them and where there might be gaps you can fill.
### Example
Imagine you want to develop a new project management tool. Before diving in, survey potential users to identify their pain points with current tools. This feedback can guide your development, ensuring you create something that meets real needs.
## 2. Poor Monetization Strategy
### Why It’s a Problem
Having a great product isn’t enough; you need a solid plan to make money from it. Many projects fail because they don’t have a clear monetization strategy.
### How to Fix It
Consider different monetization methods such as subscriptions, one-time purchases, freemium models, and advertising. Choose the one that fits best with your product and audience. Don’t be afraid to experiment with different strategies to see what works.
### Tip
If you're offering a freemium model, ensure that the premium features provide significant value that justifies the cost.
## 3. Inconsistent Effort
### Why It’s a Problem
Side projects often get pushed aside when life gets busy. Inconsistent effort means slow progress, which can lead to loss of momentum and interest.
### How to Fix It
Set aside regular time for your side project, even if it’s just a few hours a week. Treat it like an important commitment. Use tools like Trello or Asana to keep track of tasks and deadlines.
### Tip
Use the Pomodoro Technique to stay focused during your work sessions.
## 4. Ignoring Feedback
### Why It’s a Problem
Ignoring feedback from users can lead to a product that doesn’t meet their needs or expectations, resulting in low adoption and poor sales.
### How to Fix It
Actively seek out feedback from your users and take it seriously. Use surveys, user testing, and direct communication to gather insights. Make iterative improvements based on this feedback.
### Example
Incorporate a feedback loop in your product, such as a feature request form or an in-app survey, to continuously gather user input.
## 5. Overcomplicating the Product
### Why It’s a Problem
Trying to include too many features can overwhelm users and make the product harder to use, leading to lower satisfaction and engagement.
### How to Fix It
Start with a minimum viable product (MVP) that includes only the essential features. Focus on solving one core problem really well. You can always add more features later based on user feedback and demand.
### Tip
Adopt the 80/20 rule: focus on the 20% of features that will deliver 80% of the value to your users.
## 6. Poor Marketing
### Why It’s a Problem
No matter how great your product is, if no one knows about it, it won’t make money. Many side projects fail because of inadequate marketing efforts.
### How to Fix It
Develop a marketing plan that includes social media, content marketing, SEO, and possibly paid advertising. Build a presence on platforms where your target audience spends their time. Consider building an email list to stay in touch with potential customers.
### Example
Create a blog or YouTube channel related to your product to attract an audience and establish authority in your niche.
## 7. Not Understanding Financials
### Why It’s a Problem
Mismanaging finances can quickly lead to failure. This includes underpricing, not tracking expenses, or not understanding profit margins.
### How to Fix It
Educate yourself on basic financial principles. Use tools like QuickBooks or FreshBooks to manage your finances. Ensure your pricing covers costs and allows for profit. Regularly review your financials to stay on top of your cash flow.
### Tip
Use a simple spreadsheet to track your expenses and income, ensuring you always know your financial position.
## 8. Lack of Differentiation
### Why It’s a Problem
If your product doesn’t stand out from the competition, it’s unlikely to attract a significant customer base.
### How to Fix It
Identify your unique selling proposition (USP). What makes your product different or better than the competition? Highlight this in your marketing and product development.
### Example
If you're developing a new fitness app, your USP might be personalized workout plans based on AI analysis of user data.
## 9. Poor User Experience
### Why It’s a Problem
A product that is difficult to use will frustrate customers and drive them away, regardless of how innovative it is.
### How to Fix It
Invest in good design and user experience (UX). Make sure your product is intuitive and easy to use. Conduct usability testing to identify and fix pain points.
### Tip
Use heatmaps and user recordings with tools like Hotjar to understand how users interact with your product and where they encounter issues.
## 10. Giving Up Too Soon
### Why It’s a Problem
Success doesn’t usually happen overnight. Many side projects fail because their creators give up too soon.
### How to Fix It
Be patient and persistent. Set realistic expectations and understand that building a profitable side project takes time. Celebrate small wins to keep yourself motivated and stay committed to your long-term goals.
### Example
Set milestones for your project, such as user acquisition targets or feature rollouts, and reward yourself when you achieve them.
## Additional Insights: Focusing on B2B vs. B2C
### Why B2B Can Be Easier to Scale
B2B (business-to-business) models often have higher revenue potential and more predictable income streams compared to B2C (business-to-consumer) models. Businesses typically have more money to spend, and B2B solutions often solve critical operational problems.
### How to Focus on Clients with Money
Identify target clients who have budget allocations for your type of product. Tailor your marketing messages to address their specific pain points and demonstrate how your solution can deliver a strong return on investment (ROI).
Turning a side project into a profitable venture involves more than just a great idea. By avoiding these common pitfalls and implementing the strategies outlined above, you can increase your chances of success. Remember, consistent effort, good market understanding, and a clear monetization strategy are key to making your side project a financial success. Happy creating! | delia_code |
1,894,254 | Sass I | Sass es un preprocesador CSS que nos permite dotar de superpoderes a css por medio de la anidación de... | 0 | 2024-06-20T03:50:03 | https://dev.to/fernandomoyano/lo-basico-de-sass-2287 | webdev, beginners, css |
**Sass** es un preprocesador CSS que nos permite dotar de superpoderes a css por medio de la anidación de selectores, la creación de archivos parciales, y funciones avanzadas, Todo este proceso será compilado por el compilador de sass para entregarnos finalmente un único archivo css ya listo y optimizado para producción.
---
# Que es la compilación de código?
---
La compilación de código es el proceso de **transformar** código fuente escrito en un lenguaje de programación de alto nivel (como C++, Java, o TypeScript) a un lenguaje de nivel inferior (como código máquina, bytecode, o JavaScript) que puede ser ejecutado por una computadora. Este proceso es realizado por un compilador, que toma el código fuente, lo analiza, lo optimiza y genera el código objeto correspondiente.
# Proceso de instalación y Compilación con Node.
---
Instalamos SASS por medio de la terminal de comandos utilizando NPM:
```bash
npm install -g sass
```
Una vez instalado, puedes **compilar** un archivo SASS indicando en el comando el archivo que quieres compilar y seguido la ruta destino y el nombre con el que quieres que la compilación salga. Por ejemplo puedes compilar un archivo llamado *styles.scss* a CSS ejecutando el siguiente comando en la terminal:
```bash
sass styles.scss styles.css
```
Este comando compilará *styles.scss* y generará un archivo *styles.css* con los estilos en CSS. Cabe aclarar que el archivo de salida de la compilación puede llevar el nombre que tú quieras.
Para lograr compilar y que el resultante ya esté optimizado y comprimido ejecutamos el siguiente comando:
```bash
npx sass --style=compressed input.scss output.css
```
También podemos hacer que el resultado de la compilación sea mas legible y amigable para esto podemos ejecutar el siguiente comando:
```bash
npx sass --style=expanded input.scss output.css
```
Es importante que sepamos que de esta forma el archivo css resultante no se encuentra optimizado es por eso que la opcion recomendable para compilar es compressed.
Si queremos que la terminal esté pendiente de los nuevas modificaciones y siga con el proceso de compilación sin que el mismo se paré podemos ejecutar el siguiente comando:
```bash
npx sass --watch input.scss output.css
```
con la combinación de teclas ctrl + c podemos frenar el proceso de compilación en cualquier momento.
# Proceso de compilacion con la extensión Live Sass compiler.
---
- Buscamos la extensión en la parte de extensiones de visual studio Code.
- configuramos las opciones que nos ofrece live sass:
- Ya dentro de la configuración de la extensión damos click en settings Json dentro de la opción **Format**
Una vez dentro nos encontraremos con el archivo de configuración de Visual Studio donde debemos pegar el siguiente fragmento de código para definir el tipo de compilación y la carpeta de destino de la misma.
```json
{
"liveSassCompile.settings.formats": [
{
"format": "expanded",
"extensionName": ".css",
"savePath": "/css"
}
],
"liveSassCompile.settings.generateMap": true,
"liveSassCompile.settings.showOutputWindow": true
}
```
**format**: Especifica el formato del CSS generado. Puede ser nested, expanded, compact, o compressed.
**extensionName**: La extensión del archivo compilado.
**savePath**: La ruta donde se guardarán los archivos compilados. Puedes especificar una ruta relativa a la ubicación del archivo SCSS.
# Diferentes formatos de compilacion
---
### Formato compact
**Descripción**: En el formato compact, cada regla CSS se escribe en una sola línea.
**Características**:
Menos líneas en comparación con el formato expanded.
Las reglas aún son legibles.
No elimina espacios en blanco innecesarios ni comentarios.
```bash
.class1 {
color: red;
}
.class2 {
color: blue;
}
```
##### Se convierte en :
```bash
.class1 { color: red; }
.class2 { color: blue; }
```
### Formato compressed
**Descripción**: En el formato compressed, el CSS generado está completamente minificado.
**Características**:
Elimina todos los espacios en blanco innecesarios.
Elimina los comentarios.
Todo el CSS se escribe en una sola línea.
Ideal para la producción, ya que reduce el tamaño del archivo.
```bash
.class1 {
color: red;
}
.class2 {
color: blue;
}
```
##### Se convierte en:
```bash
.class1{color:red}.class2{color:blue}
```
### Nested
Características del Formato nested
**Estructura Jerárquica:** Mantiene la estructura de anidamiento de los selectores como se escriben en el archivo Sass, lo que facilita la comprensión de las relaciones entre los selectores.
**Legibilidad:** Es fácil de leer y entender, ya que la salida CSS sigue una estructura similar a la del Sass original.
**Espacios y Sangrías:** Utiliza sangrías para mostrar la jerarquía de los selectores
```bash
.navbar {
background-color: #333;
.nav-item {
color: #fff;
&:hover {
color: #f0f0f0;
}
}
}
```
##### Se convierte en:
```bash
.navbar {
background-color: #333; }
.navbar .nav-item {
color: #fff; }
.navbar .nav-item:hover {
color: #f0f0f0; }
```
# Sintaxis SASS
---
# Nesting
---
El nesting en Sass se refiere a la capacidad de anidar selectores CSS dentro de otros selectores de una manera que refleja la jerarquía HTML, lo que facilita la organización y la legibilidad del código CSS.
**¿Cómo Funciona el Nesting en Sass?**
En lugar de escribir selectores CSS largos y repetitivos, puedes anidar selectores dentro de otros selectores para indicar que están relacionados. Sass luego convierte esta estructura anidada en CSS plano, expandiendo los selectores anidados según corresponda.
#### 1) Ejemplo basico de Nesting en Sass
##### HTML básico
```HTML
<div>
<p>Lorem ipsum</p>
</div>
<br />
<br />
<br />
<br />
```
##### CSS Inicial (*Éste recuadro muestra como ustedes tendrían sus estilos css antes de usar SASS*)
```css
div {
width: 100px;
height: 100px;
background-color: red;
padding: 15px;
}
div p {
font-size: 20px;
color: white;
font-family: Arial, sans-serif;
}
```
##### Lo mismo escrito con sass
```sass
div {
width: 100px;
height: 100px;
background-color: red;
padding: 15px;
p {
font-size: 20px;
color: white;
font-family: Arial, sans-serif;
}
}
```
#### 2) Segundo Ejemplo mas complejo
##### HTML básico
```HTML
<ul>
<li>
<a href="">Enlac1 </a>
<a href="">Enlace2 </a>
</li>
</ul>
<br />
<br />
<br />
<br />
```
##### css inicial (*Éste recuadro muestra como ustedes tendrían sus estilos css antes de usar SASS*)
```css
ul {
list-style: none;
}
ul li {
padding: 15px;
display: inline-block;
}
ul li a {
text-decoration: none;
font-size: 16px;
color: #444;
}
```
##### Lo mismo escrito con SASS
```sass
ul {
list-style: none;
li {
padding: 15px;
display: inline-block;
a {
text-decoration: none;
font-size: 16px;
color: #444;
}
}
}
```
#### 3) Tercer Ejemplo mas uso del operador &
El operador **&** en SASS es conocido como el operador de referencia padre y se utiliza principalmente para hacer referencia al selector de nivel superior dentro de una regla anidada. Este operador es útil para aplicar estilos en función del contexto del selector actual y permite crear selectores más específicos de manera concisa.
##### HTML inicial
```HTML
<ul>
<li>
<a href="">Enlac1 </a>
<a href="">Enlace2 </a>
</li>
</ul>
```
##### CSS Inicial (*Éste recuadro muestra como ustedes tendrían sus estilos css antes de usar SASS*)
```css
li {
color: blue;
}
li:hover {
color: red;
}
```
##### Lo mismo escrito Con SASS
```sass
li {
color: blue;
&:hover {
color: red;
}
}
```
# vars
---
Las variables son una manera de guardar información que necesites reutilizar en tus hojas de estilos: colores, dimensiones, fuentes o cualquier otro valor. SASS utiliza el símbolo dólar ($) al principio de la palabra clave para crear una variable.
Estas variables se comportan como atributos CSS, y su valor puede ser cualquiera que pudiera adquirir un atributo CSS.
Una buena práctica común consiste en definir todas las variables globales al principio del fichero, para que puedan localizarse rápidamente.
#### Ejemplo de variables:
```HTML
<div>
<h4 class="titulo">Lorem ipsum</h4>
<p class="informacion">Lorem, ipsum dolor sit amet</p>
</div>
<br />
<br />
<br />
<br />
```
##### CSS inicial(*Éste recuadro muestra como ustedes tendrían sus estilos css antes de usar SASS*)
```css
.titulo {
font: normal;
font-size: 24px;
font-family: Open Arial, Helvetica, sans-serif;
color: #a1a1a1;
}
.información {
color: #444;
}
```
##### Lo mismo escrito con SASS
```sass
$fuente-titulo: normal, 48px/2, Open Arial, Helvetica, sans-serif;
$color-titulo: #a1a1a1;
$color-información: #444;
.titulo {
font: $fuente-titulo;
color: $color-titulo;
}
.información {
color: #444;
}
```
# Archivos Parciales (partials)
---
Estos archivos parciales suelen contener fragmentos de código reutilizables, como variables, mixins, funciones, y estilos comunes, que pueden ser compartidos entre múltiples archivos SASS. Estos archivos están destinados a ser importados en otros archivos SASS. los archivos parciales deben escribirse comenzando con _ (guión bajo) algunos ejemplos de archivos parciales pueden ser los siguientes:
_variables.scss
Este archivo contiene todas las variables que se usarán en el proyecto, como colores, fuentes, tamaños, etc.
```sass
// _variables.scss
$primary-color: #3498db;
$secondary-color: #2ecc71;
$font-stack: 'Helvetica, sans-serif';
```
_reset.scss
Este archivo contiene un conjunto de estilos de "reset" para asegurar que los navegadores rendericen todos los elementos de forma más consistente.
```sass
// _reset.scss
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
```
_base.scss
Este archivo contiene estilos base para elementos HTML comunes.
```sass
// _base.scss
body {
font-family: $font-stack;
color: $primary-color;
}
h1, h2, h3, h4, h5, h6 {
color: $secondary-color;
}
```
# import
---
En Sass, **@import** se utiliza para incluir el contenido de un archivo en otro. Esto permite dividir el CSS en múltiples archivos más pequeños y organizados, lo que facilita la gestión y el mantenimiento del código. A diferencia del @import de CSS, que requiere que el navegador haga múltiples solicitudes HTTP, el @import de Sass se resuelve durante la compilación, combinando todos los archivos en un único archivo CSS.
#### Ejemplo Básico de @import
Supongamos que tienes dos archivos: por un lado un archivo parcial \_variables.scss y por otro lado un archivo principal styles.scss.
**\_variables.scss**
```bash
$primary-color: #333;
$font-stack: Helvetica, sans-serif;
```
**styles.scss**
```bash
@import 'variables';
body {
font: 100% $font-stack;
color: $primary-color;
}
```
**CSS Generado**
```bash
body {
font: 100% Helvetica, sans-serif;
color: #333;
}
```
# Operaciones Con SASS
---
En Sass, puedes realizar una variedad de **cálculos** directamente en tus archivos de estilo, lo que te permite crear estilos dinámicos y flexibles. A continuación se presentan algunos ejemplos de cálculos que puedes hacer en Sass:
##### Suma
```css
$base-spacing: 10px;
$double-spacing: $base-spacing + 10px;
.container {
padding: $double-spacing; // 20px
}
```
##### Resta
```css
$full-width: 100%;
$sidebar-width: 25%;
$content-width: $full-width - $sidebar-width;
.content {
width: $content-width; // 75%
}
```
##### Potencia
```css
$base: 2;
$exponent: 3;
$power: pow($base, $exponent);
.result {
width: $power * 10px; // 80px (2^3 = 8)
}
```
| fernandomoyano |
1,547,240 | A simple task, a senior's mind | As all software developers, especially seniors, I was faced today with the task of making a simple,... | 0 | 2023-07-24T12:24:03 | https://dev.to/antosdev/a-simple-task-a-seniors-mind-gka | programming, designsystem, api, softwareengineering | As all software developers, especially seniors, I was faced today with the task of making a simple, brain dead, design decision that I should be able to make in my sleep, but with every passing minute I came up with new designs and solutions to reach the same result so after spending 15 minutes thinking about it I got confused and the seemingly simple task became an important design choice.
> For every problem, there is a solution that is simple, neat, and wrong. - H. L. Mencken
Let me walk you through what happened.
I was tasked with developing a solution to block some phone numbers (based on country codes) from receiving SMS from our APIs. The requirements are clear:
1. have a configurable list of country codes
2. validate the phone number against them
3. throw a nice exception telling the user to use email instead of phone!
Starting off I began wondering where to store this list of country codes, the first option that came to my mind was: <u>Store it in a configuration file</u>. Easily editable and accessible, but then I remembered that we are hosted on AWS and are using IaC which means that to change the configuration file I'll need to push my infrastructure.
**Back to my brain lab** I thought about <u>storing this list in a new DB table</u>, simple, easy, straight forward, a table that contains a list of blocked countries with their codes, but worth it?
I gave it an extra minute….
Why not create a DB table with a list of all countries and add a flag to it specifying if the country is supported or not?
OR, another minute passes...
Why not create an application settings table (basically a configuration file stored in a DB table where each record is a key value pair) having an entry containing a list of these blocked countries…..
A simple task now needs a decision making chart of Pros and Cons
Even the most experienced amongst us will face this issue, a simple question a multitude of right answers! That's the job!
> With great power comes great responsibility
| antosdev |
1,894,253 | Volunteer Backend Developer | Join Generals as a volunteer Backend Developer and help build a platform that fosters unity in the... | 0 | 2024-06-20T03:48:24 | https://dev.to/rejoicedo/volunteer-backend-developer-1mg | backend, backenddevelopment, node, nextjs | Join **Generals** as a volunteer Backend Developer and help build a platform that fosters unity in the body of Christ!
**Responsibilities:
**- Design and develop the server-side logic and database integration
- Create RESTful APIs and ensure data security and scalability
- Collaborate with our team to integrate frontend and backend functionality
- Troubleshoot and optimize backend performance
- Be a believer of the gospel
**As an unpaid volunteering opportunity, you'll gain:**
- Experience working on a project with a meaningful mission
- Opportunity to develop your skills and build your portfolio
- Collaborative and supportive team environment
- Reference letter and recommendation upon completion of project
- The joy of serving and making a positive impact in the community!
If you're interested in this opportunity, please reach out to us at rejoiceoedokpayi@gmail.com.
Let me know if you need any further assistance! | rejoicedo |
1,894,252 | Volunteer Frontend Developer | Join Generals as a volunteer Frontend Developer and help build a platform that promotes unity in the... | 0 | 2024-06-20T03:44:34 | https://dev.to/rejoicedo/volunteer-frontend-developer-589c | javascript, ai, career, frontend | Join Generals as a volunteer Frontend Developer and help build a platform that promotes unity in the body of Christ!
**Responsibilities:**
- Design and develop a user-friendly interface for our web application
- Create responsive, interactive, and visually appealing components
- Collaborate with our team to integrate frontend and backend functionality
- Ensure cross-browser compatibility and optimize performance.
- Ensure you're a believer
**As an unpaid volunteering opportunity, you'll gain:**
- Experience working on a project with a meaningful mission
- Opportunity to develop your skills and build your portfolio
- Collaborative and supportive team environment
- Reference letter and recommendation upon completion of project
- The joy of serving and making a positive impact in the community!
If you're interested in this opportunity, please reach out to me at rejoiceoedokpayi@gmail.com.
Let me know if you need any further assistance! | rejoicedo |
1,894,251 | First Post | This is my first post. I want to improve my skills, so I will start sharing my study notes and... | 0 | 2024-06-20T03:25:19 | https://dev.to/xdoggox/first-post-2h20 | firstpost, development | This is my first post. I want to improve my skills, so I will start sharing my study notes and exercises. I won't do tutorials or anything like that, I'll just share what I learn. Your opinion is welcome as long as it is kind and generates learning 😁😁
So, let's do this :) | xdoggox |
1,894,248 | Dive into 3D: Building Environments in Unity with Pre-Made Assets | Unity reigns supreme as a powerful game engine for crafting compelling 3D experiences. But what if... | 0 | 2024-06-20T03:18:26 | https://dev.to/epakconsultant/dive-into-3d-building-environments-in-unity-with-pre-made-assets-100i | unity3d | Unity reigns supreme as a powerful game engine for crafting compelling 3D experiences. But what if you're new to 3D development or lack the artistic expertise to create intricate environments? Fear not! Unity embraces the use of pre-existing assets, allowing you to construct captivating worlds without needing to model every tree or texture every rock. This guide empowers you to take your first steps into the exciting realm of 3D environment creation using Unity and pre-made assets.
[Unlocking the Secrets to Landing Remote Work: The Top Online Platforms and Strategies for Success](https://www.amazon.com/dp/B0CPN5MM4L)
Preparation: Gathering the Tools
Before diving in, ensure you have the essentials:
- Unity Game Engine: Download and install the latest version of Unity from the official website https://unity.com/download. There's a free version perfect for beginners.
- Pre-Made Assets: Explore online asset stores like the Unity Asset Store https://assetstore.unity.com/ or other reputable marketplaces. These stores offer a vast library of 3D models, textures, and environment packages catering to various themes and styles. Choose asset packs that suit your desired environment (e.g., fantasy forest, sci-fi cityscape).
- Basic Computer: While high-end machines deliver smoother performance, Unity can run on most modern computers. However, complex asset packs might require more processing power.
Building Your World: Step-by-Step
- Project Setup: Launch Unity and create a new project. Choose a descriptive name that reflects your environment's theme.
- Importing Assets: Locate your downloaded asset pack and import it into your project. In Unity, navigate to the "Assets" window and drag the asset pack folder into it. This populates your project with all the 3D models, textures, and materials included in the pack.
- Understanding the Assets: Most asset packs come well organized, with folders for models, textures, and prefabs (pre-configured game objects). Familiarize yourself with the structure of your asset pack to locate the specific elements you'll need.
- Building the Terrain: Unity offers built-in terrain tools for creating the base landscape of your environment. You can manipulate the terrain to create hills, valleys, and other geographical features. If your asset pack includes a pre-made terrain, you can skip this step and use that instead.
- Placing Objects: Here's where the fun begins! Drag and drop models from the asset pack's "Models" folder into the scene view. These models represent various objects like trees, buildings, rocks, and furniture. Unity uses the term "game object" for these placed objects. Position and rotate the objects using the transform tools (move, rotate, scale) in the inspector window to create a natural and visually appealing layout.
- Applying Textures and Materials: Most asset packs come with textures that define the appearance of the models. Locate the textures within the asset pack and apply them to the corresponding materials in the inspector window. This brings your models to life with color, detail, and surface properties.
- Lighting and Skybox: Lighting plays a crucial role in setting the mood and atmosphere of your environment. Unity offers various lighting options, including directional lights, point lights, and spotlights. Experiment with different lighting setups to achieve the desired effect. You can also use a skybox, a panoramic image that defines the background of your scene, to further enhance the visual appeal.
- Camera Placement: Consider where the player will "see" the environment from. Unity allows you to position and rotate the main camera within the scene view. This establishes the initial viewpoint for the player.
- Saving Your Work: Regularly save your project using Unity's built-in save functionality (Ctrl+S). This ensures your progress is preserved in case of unexpected program crashes.
Additional Tips:
- Start Simple: Don't overwhelm yourself with a massive environment in your first attempt. Begin with a smaller, focused area and gradually expand it.
- Utilize Prefabs: Many asset packs include prefabs, which are pre-configured game objects that combine models, textures, and even basic functionality. These can save you time and effort when building your environment.
- Experiment with lighting: Different lighting setups can drastically alter the mood of your environment. Play around with lighting options to create the desired atmosphere.
- Post-Processing Effects: Unity offers post-processing effects that can add visual enhancements like bloom, fog, and color correction. Experiment with these effects to achieve a polished look.
- Tutorials and Resources: There are numerous online tutorials and resources dedicated to creating environments in Unity. Utilize these resources to learn new techniques and expand your skills.
| epakconsultant |
1,894,247 | tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web dasar: | road.co.id tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web... | 0 | 2024-06-20T03:14:39 | https://dev.to/jasa_cs_96/tentu-berikut-contoh-kode-html-sederhana-untuk-membuat-halaman-web-dasar-5d9j | webdev, beginners, programming, tutorial | [road.co.id](https://road.co.id/) tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web dasar:
HTML
<!DOCTYPE html>
<html>
<head>
<title>Halaman Web Sederhana</title>
</head>
<body>
<h1>Selamat datang di halaman web saya!</h1>
<p>Ini adalah paragraf berisi konten halaman web.</p>
</body>
</html>
Gunakan kode dengan hati-hati.
content_copy
Penjelasan kode:
<!DOCTYPE html>: Deklarasi tipe dokumen sebagai HTML.
<html>: Tag pembuka dokumen HTML.
<head>: Bagian kepala dokumen yang berisi informasi tentang halaman web, seperti judul.
<title>: Tag untuk menentukan judul halaman web, yang akan muncul di title bar browser.
<body>: Bagian badan dokumen yang berisi konten yang akan ditampilkan di halaman web.
<h1>: Tag untuk membuat heading (judul utama) level 1.
<p>: Tag untuk membuat paragraf.
Anda dapat menyimpan kode ini dengan ekstensi .html dan kemudian membuka file tersebut di web browser untuk melihat hasilnya.
Berikut adalah beberapa hal lain yang dapat Anda coba tambahkan ke kode ini untuk membuat halaman web lebih menarik:
Tambahkan tag <b> dan <i> untuk membuat teks tebal dan miring.
Tambahkan tag <img src="gambar.jpg"> untuk menampilkan gambar. (Ganti "gambar.jpg" dengan nama file gambar Anda).
Tambahkan tag <a href="https://www.example.com"> untuk membuat link ke halaman web lain. (Ganti "https://www.example.com" dengan alamat URL yang Anda inginkan).
Untuk mempelajari lebih lanjut tentang HTML, Anda bisa mencari referensi di internet dengan memasukkan kata kunci "belajar HTML" di mesin pencari. | jasa_cs_96 |
1,894,246 | tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web dasar: | road.co.id tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web... | 0 | 2024-06-20T03:14:38 | https://dev.to/jasa_cs_96/tentu-berikut-contoh-kode-html-sederhana-untuk-membuat-halaman-web-dasar-4350 | webdev, beginners, programming, tutorial | [road.co.id](https://road.co.id/) tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web dasar:
HTML
<!DOCTYPE html>
<html>
<head>
<title>Halaman Web Sederhana</title>
</head>
<body>
<h1>Selamat datang di halaman web saya!</h1>
<p>Ini adalah paragraf berisi konten halaman web.</p>
</body>
</html>
Gunakan kode dengan hati-hati.
content_copy
Penjelasan kode:
<!DOCTYPE html>: Deklarasi tipe dokumen sebagai HTML.
<html>: Tag pembuka dokumen HTML.
<head>: Bagian kepala dokumen yang berisi informasi tentang halaman web, seperti judul.
<title>: Tag untuk menentukan judul halaman web, yang akan muncul di title bar browser.
<body>: Bagian badan dokumen yang berisi konten yang akan ditampilkan di halaman web.
<h1>: Tag untuk membuat heading (judul utama) level 1.
<p>: Tag untuk membuat paragraf.
Anda dapat menyimpan kode ini dengan ekstensi .html dan kemudian membuka file tersebut di web browser untuk melihat hasilnya.
Berikut adalah beberapa hal lain yang dapat Anda coba tambahkan ke kode ini untuk membuat halaman web lebih menarik:
Tambahkan tag <b> dan <i> untuk membuat teks tebal dan miring.
Tambahkan tag <img src="gambar.jpg"> untuk menampilkan gambar. (Ganti "gambar.jpg" dengan nama file gambar Anda).
Tambahkan tag <a href="https://www.example.com"> untuk membuat link ke halaman web lain. (Ganti "https://www.example.com" dengan alamat URL yang Anda inginkan).
Untuk mempelajari lebih lanjut tentang HTML, Anda bisa mencari referensi di internet dengan memasukkan kata kunci "belajar HTML" di mesin pencari. | jasa_cs_96 |
1,894,245 | tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web dasar: | road.co.id tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web... | 0 | 2024-06-20T03:14:38 | https://dev.to/jasa_cs_96/tentu-berikut-contoh-kode-html-sederhana-untuk-membuat-halaman-web-dasar-2amn | webdev, beginners, programming, tutorial | [road.co.id](https://road.co.id/) tentu! Berikut contoh kode HTML sederhana untuk membuat halaman web dasar:
HTML
<!DOCTYPE html>
<html>
<head>
<title>Halaman Web Sederhana</title>
</head>
<body>
<h1>Selamat datang di halaman web saya!</h1>
<p>Ini adalah paragraf berisi konten halaman web.</p>
</body>
</html>
Gunakan kode dengan hati-hati.
content_copy
Penjelasan kode:
<!DOCTYPE html>: Deklarasi tipe dokumen sebagai HTML.
<html>: Tag pembuka dokumen HTML.
<head>: Bagian kepala dokumen yang berisi informasi tentang halaman web, seperti judul.
<title>: Tag untuk menentukan judul halaman web, yang akan muncul di title bar browser.
<body>: Bagian badan dokumen yang berisi konten yang akan ditampilkan di halaman web.
<h1>: Tag untuk membuat heading (judul utama) level 1.
<p>: Tag untuk membuat paragraf.
Anda dapat menyimpan kode ini dengan ekstensi .html dan kemudian membuka file tersebut di web browser untuk melihat hasilnya.
Berikut adalah beberapa hal lain yang dapat Anda coba tambahkan ke kode ini untuk membuat halaman web lebih menarik:
Tambahkan tag <b> dan <i> untuk membuat teks tebal dan miring.
Tambahkan tag <img src="gambar.jpg"> untuk menampilkan gambar. (Ganti "gambar.jpg" dengan nama file gambar Anda).
Tambahkan tag <a href="https://www.example.com"> untuk membuat link ke halaman web lain. (Ganti "https://www.example.com" dengan alamat URL yang Anda inginkan).
Untuk mempelajari lebih lanjut tentang HTML, Anda bisa mencari referensi di internet dengan memasukkan kata kunci "belajar HTML" di mesin pencari. | jasa_cs_96 |
1,894,244 | 郭农场就是一场金融骗局 | ... | 0 | 2024-06-20T03:13:13 | https://dev.to/cryptosire24509/guo-nong-chang-jiu-shi-chang-jin-rong-pian-ju-5gp6 |
郭文贵向他的几十万名网络追随者撒谎，承诺如果他们向GTV传媒集团、喜马拉雅农场联盟、G|俱乐部和喜马拉雅交易所进行投资，将获得巨额的利润。至少从2018年3月起，郭文贵就已经作为主谋开始策划这起复杂的金融骗局，他和自己的金融师余建明（Kin Ming Je）一起诈骗了数千人，获得超过十亿美金的收益。郭文贵的成功有一种“邪教”的味道。用“反共”名义召唤信仰者，打造一个信息封闭的社群，同时用霸凌或威胁手段惩罚信仰不坚定者。把自己包装成“教主”式的人物后，顺理成章收割信徒的财富。 | cryptosire24509 | |
1,894,243 | I'm Moth, and this is my first post! | Hi, I'm Moth. A husband and father of two, I enjoy fishing, hiking, DIY projects, playing Fortnite... | 0 | 2024-06-20T03:12:15 | https://dev.to/moth668/im-moth-and-this-is-my-first-post-3mn | Hi, I'm Moth. A husband and father of two, I enjoy fishing, hiking, DIY projects, playing Fortnite with family, OSRS, restoring a 1991 Nissan 300zx. I'm an overly optimistic jack of all trades.
I'm just beginning my journey. One of the tasks in this course is to participate in the community. This is how I found DEV, and I'm grateful for the opportunity to meet and learn from each of you here.
This section of the pre-course work has a practice for pseudocode, here is my write up, let me know what you think! :
//Algorithm: Make the bed
// Tasks:
// Spread Fancy Yellow Comforter
// Fold Gray comforter
// Stack White pillows
// Stack Fancy pillows
// Pattern recognition:
// Yellow comforter goes on first
// Grey comforter gets folded
// Fancy pillows are stacked on top of white pillows
// Abstraction:
// Ignore pillow cases
// Ignore white sheet
// Sequence:
//1. Event 1: Spread the comforters:
// Conditional: If (a comforter is yellow) {
// Spread it on top
// } else {
// Gets folded
// }
//Debug: A comforter has a stain on it - what do we do?
// Conditional: If (a comforter is stained) {
// Put it in laundry
// } else if (comforter is yellow)
// Spread it on mattress
// } else if (comforter is gray) {
// Gets folded
// }
//2. Event 2: Stack the pillows:
// Conditional: If (pillow is stained) {
// Put it in laundry
// } else if (pillow is white) {
// Put it on bottom
// } else if (pillow is fancy) {
// Put it on top
// } | moth668 | |
1,894,242 | Test Creation using Record and Playback Testing | The world of software development is progressing each day, where applications are constantly evolving... | 0 | 2024-06-20T03:11:46 | https://dev.to/elle_richard_232/test-creation-using-record-and-playback-testing-56nf | software, cypress, testing | The world of software development is progressing each day, where applications are constantly evolving and new features are continuously being added, ensuring software quality is of utmost importance. In such a scenario, manual testing can be time-consuming and error-prone. And that is where automation testing comes to the rescue and helps achieve an efficient and reliable testing approach.
Though [automation testing](https://testgrid.io/blog/test-automation/) is a great solution, it comes with its own set of challenges. The most common challenge that one can face is the availability of resources that can adapt to an automation testing tool with very little turnaround time. To overcome this, the Record and Playback feature of automation testing tools can be a game-changer. In this article, we will discuss about Record and Playback feature to perform test automation and see how TestGrid offers a seamless platform to use it.
### What is Record and Playback Testing?
Record and Playback Testing is a technique to record scripts for the actions performed by the user. The script can be re-run or played back to simulate the same actions with the application. The recorded script is capable of capturing different user actions or interactions like mouse clicks, key presses, window navigation, etc similar to the interactions offered by various automation testing tools.
Record and Playback is generally done through a user-friendly interface that allows testers to easily record their interactions, and then play back the recorded script to validate the application’s functionality.
### Benefits of using Record and Playback Testing
Record and Playback testing comes with several advantages like-
Fast test creation by recording user actions can significantly reduce the time and effort invested in the test development process, be it manual or automation testing.
Record and playback enable teams to develop comprehensive test cases, hence increasing the test coverage.
The maintenance effort is reduced marginally, as the user can re-record the changed user flow or scenario, hence minimizing the effort required to maintain the test suite.
Record and playback testing can be easily adapted by non-technical testers or business analysts to create and execute automated test scripts, eliminating the need to learn any programming language.
Regression tests can be created using the record and playback feature and executed multiple times to validate functionality after any code change in the application.
### Challenges with Record and Playback Testing
Not everything comes without challenges, and so is the case with Record and Playback Testing. It comes with a fair share of challenges that need to be addressed to maximize its benefits.
The recorded scripts can be fragile and may break if there are changes in the application’s User Interface(UI) or element properties. If your project has such frequent updates, it is necessary to frequently update the recorded test scripts too.
Recorded scripts might have limited flexibility to handle complex scenarios or conditions, In such cases, you might have to apply customized logic or use data-driven approach in your test scripts.
Testing dynamic content using record and playback can be challenging as the chance of accuracy is less when the data changes during playback.
Since the recorded tests may contain hard-coded data, executing data-driven tests can be challenging.
With the growth of applications, maintaining scalability can be a real challenge because of limited reusability within tests.
These challenges can be overcome by using Record and Playback testing with other techniques like scripting, or a keyword-driven approach to ensure maintainability of tests.
### Key Takeaways
Record and Playback Testing can be a game-changer to boost the automation testing strategy for an organization.
Recording the tests is as easy as executing manual tests and re-running the recording to validate the features.
Record and Playback testing offers multiple advantages, ranging from fast test writing to easy adoption by non-technical team members.
It also has some challenges like maintainability issues, which can be addressed by using it in conjunction with other techniques of automation testing.
TestGrid provides an amazing solution to record your web or mobile tests that can be run on the TestGrid server across multiple browsers or devices.
The Record and Playback feature offered by TestGrid helps to generate test cases in no time and execute them over a range of devices/browsers along with providing comprehensive reports of execution.
**Source:** _This blog was originally posted on [Testgrid](https://testgrid.io/blog/record-and-playback-testing/)._
| elle_richard_232 |
1,894,240 | Boosting AI Accuracy: Unveiling Retrieval-Augmented Generation (RAG) | Large language models (LLMs) have revolutionized how we interact with machines. From composing... | 0 | 2024-06-20T03:09:14 | https://dev.to/epakconsultant/boosting-ai-accuracy-unveiling-retrieval-augmented-generation-rag-39mb | rag | Large language models (LLMs) have revolutionized how we interact with machines. From composing realistic dialogue to generating creative text formats, their capabilities are impressive. However, LLMs sometimes struggle with factual accuracy, relying solely on the patterns they learn from vast amounts of training data. This is where Retrieval-Augmented Generation (RAG) steps in, offering a powerful technique to enhance the reliability and factuality of LLM outputs.
Understanding the LLM Limitation:
Imagine an LLM trained on a massive dataset of news articles. It can learn to write grammatically correct and coherent news pieces. However, if the training data contained factual inaccuracies, the LLM might perpetuate those errors in its generated text. This is because LLMs primarily learn statistical relationships between words, not necessarily the true meaning behind them.
The Power of RAG:
RAG bridges this gap by incorporating external knowledge sources into the LLM's generation process. Here's how it works:
- User Input: The user provides a prompt or query to the LLM.
- Information Retrieval: The LLM utilizes an information retrieval component to search for relevant documents from a designated knowledge base. This knowledge base can be a vast repository of text and code, like Wikipedia, or a more focused collection specific to a particular domain.
- Context Integration: The retrieved documents, often the most relevant passages, are then concatenated with the original user prompt. This creates a richer context for the LLM to understand the user's intent and the factual background surrounding the prompt.
- Enhanced LLM Generation: Equipped with this augmented context, the LLM generates its response. The retrieved information acts as a grounding force, directing the LLM towards a more factually accurate and relevant output.
Benefits of RAG:
- Improved Factual Accuracy: By leveraging external knowledge sources, RAG ensures the LLM's outputs are grounded in factual information. This is particularly beneficial for tasks like question answering or generating informative summaries.
- Reduced Hallucination: LLMs can sometimes invent information, a phenomenon known as hallucination. RAG mitigates this issue by providing the LLM with factual anchors, reducing the likelihood of fabricated content.
- Domain-Specific Expertise: RAG allows you to tailor the system to specific domains. For example, if you're working in the medical field, the knowledge base can be a collection of medical journals and research papers. This enables the LLM to generate outputs that are relevant and accurate within that domain.
- Flexibility and Adaptability: Unlike traditional LLMs that require extensive retraining for improved accuracy, RAG allows for adjustments to the knowledge base. This makes it adaptable to new information and keeps the system's outputs current.
[The Self Starter Book: Machine Learnings Role in Forecasting Crypto Trends](https://www.amazon.com/dp/B0CP8D7JCN)
Real-World Applications of RAG:
RAG holds promise across various applications:
- Question Answering Systems: By providing factual context, RAG can empower question answering systems to deliver more accurate and informative responses.
- Chatbots: Chatbots can leverage RAG to provide more reliable and domain-specific information to users.
- Machine Translation: RAG can be integrated with machine translation systems to improve the factuality and nuance of translated content.
- Content Summarization: When summarizing large amounts of text, RAG can ensure summaries are factually accurate and capture the key points.
The Future of RAG:
RAG is a promising advancement in the field of AI. As research progresses, we can expect even more sophisticated information retrieval techniques and knowledge base integration methods. This will further enhance the capabilities of LLMs, leading to more reliable and informative interactions with machines. | epakconsultant |
1,894,239 | Captcha Chaos? Conquering Challenges with Techniques and Strategies | CAPTCHAs (Completely Automated Public Turing test to tell Computers and Humans Apart) act as... | 0 | 2024-06-20T03:04:30 | https://dev.to/epakconsultant/captcha-chaos-conquering-challenges-with-techniques-and-strategies-2ba2 | captcha | CAPTCHAs (Completely Automated Public Turing test to tell Computers and Humans Apart) act as gatekeepers, protecting websites from automated bots. While they serve a purpose, encountering CAPTCHAs can be frustrating, especially when you're a legitimate user. This article explores techniques and strategies to navigate the CAPTCHA landscape, emphasizing ethical use and respecting website security.
Understanding CAPTCHAs:
There are various types of CAPTCHAs:
1. Text CAPTCHAs: These require deciphering distorted characters or letters.
2. Image CAPTCHAs: You select images based on specific criteria (e.g., containing cats, traffic lights).
3. Checkbox CAPTCHAs: You tick boxes indicating specific statements are true (e.g., "I am not a robot").
4. Advanced CAPTCHAs: These involve more complex tasks like solving puzzles or audio challenges.
Approaching CAPTCHAs Ethically:
Important note: Bypassing CAPTCHAs to gain unauthorized access or violate website terms of service is unethical and can have legal repercussions. This article focuses on legitimate CAPTCHA encounters and strategies to improve your experience.
Techniques for CAPTCHA Resolution:
- Optimizing User Behavior: Sometimes, triggering a CAPTCHA might be due to rapid browsing or unusual activity. Slow down, avoid excessive form submissions, and clear your browser cookies to see if the CAPTCHA disappears.
- Solving CAPTCHAs Manually: This might seem obvious, but for simple CAPTCHAs, taking a moment to solve them is often the quickest solution.
- Using Browser Extensions: Some browser extensions claim to help solve CAPTCHAs by leveraging optical character recognition (OCR) or audio recognition for audio challenges. Be cautious! These extensions can be unreliable and might inject malware into your browser. Thoroughly research an extension before installing it.
- Proxy Services (for Developers): Developers who encounter CAPTCHAs during web scraping (extracting data from websites) might consider proxy services. These services route your requests through different IP addresses, making it appear like you're coming from various locations, potentially reducing the chance of triggering a CAPTCHA. Remember, using proxies to scrape data might violate website terms of service, so proceed with caution and respect website policies.
CAPTCHA-Solving Services (Limited Use Cases): There are paid services that claim to solve CAPTCHAs for you. These services often involve human workers who solve the CAPTCHAs on your behalf. Use with caution! These services can be expensive and raise security concerns about your data. Explore other options before resorting to them.
[Unleashing the Power of QuantConnect: A Glimpse into the Future of Algorithmic Trading](https://www.amazon.com/dp/B0CPX363Y4)
Strategies for Mitigating CAPTCHAs:
- Identify the CAPTCHA Type: Different CAPTCHA types require different approaches. Understanding the specific CAPTCHA can help you choose the most suitable strategy.
- Consider Alternatives: Some websites offer alternative verification methods if you encounter a CAPTCHA. Look for options like verifying your phone number or email address.
- Contact the Website: If you're a legitimate user facing excessive CAPTCHAs, politely reach out to the website owner and explain your situation. They might be able to whitelist your IP address or offer alternative solutions.
Remember: The goal is to navigate CAPTCHAs efficiently while respecting website security measures. Focus on manual solutions, explore ethical browser extensions, and prioritize alternative verification methods whenever possible. By understanding CAPTCHAs and employing appropriate strategies, you can minimize the frustration they cause. | epakconsultant |
1,894,238 | Effortless Container Deployment with AWS App Runner 🏃♂️🚀 | Effortless Container Deployment with AWS App Runner 🏃♂️🚀 Introduction to AWS... | 0 | 2024-06-20T03:02:23 | https://dev.to/virajlakshitha/effortless-container-deployment-with-aws-app-runner-3n3j | 
# Effortless Container Deployment with AWS App Runner 🏃♂️🚀
### Introduction to AWS App Runner
In today's fast-paced world of software development, speed and agility are paramount. Enter AWS App Runner, a fully managed container application service designed to simplify the deployment and scaling of web applications and APIs. Whether you're starting from a container image or a source code repository, App Runner removes the complexities of infrastructure management, allowing you to focus on building exceptional applications.
### How App Runner Works
App Runner acts as an abstraction layer over the complexities of container orchestration services like AWS ECS and AWS Fargate. Here's how it simplifies the deployment process:
1. **Provide your Source:** Point App Runner to either a container image stored in a registry like Amazon ECR or a Git repository containing your application code. For the latter, App Runner will handle the containerization process for you.
2. **Configure Service:** Define the configuration for your service, such as memory allocation, environment variables, and desired number of instances.
3. **Deploy and Scale:** App Runner automatically builds and deploys your application, provisioning the necessary resources and providing a secure HTTPS endpoint for access. It also handles autoscaling based on traffic patterns, ensuring optimal performance and cost efficiency.
### Use Cases for AWS App Runner
App Runner's versatility makes it an ideal solution for a wide range of use cases. Let's explore five common scenarios:
**1. Web Application Deployment**
Imagine launching a new marketing website or a customer-facing web application. App Runner simplifies this process significantly.
* **Scenario:** A marketing team needs to quickly deploy a static website built with a framework like React or Angular.
* **Solution:** They push their built static files to a Git repository integrated with App Runner. App Runner automatically detects the code changes, builds the application, and deploys it with a globally accessible URL. They can even configure a custom domain for a more professional look.
**2. API Backends**
Modern applications often rely on APIs to deliver functionality. App Runner seamlessly hosts and scales API backends.
* **Scenario:** A development team is building a mobile application that requires a RESTful API to interact with a database.
* **Solution:** They containerize their API built using frameworks like Node.js Express or Python Flask, push the image to ECR, and deploy it with App Runner. App Runner provides the endpoint that the mobile app can connect to, handling scaling and security automatically.
**3. Microservices Architecture**
App Runner complements a microservices architecture, allowing individual services to be deployed and scaled independently.
* **Scenario:** An e-commerce platform consists of microservices for user authentication, product catalog, shopping cart, and order processing.
* **Solution:** Each microservice, containerized and potentially written in different languages, is deployed as a separate App Runner service. This granular approach allows for independent scaling and fault isolation, improving the platform's resilience and maintainability.
**4. Development and Testing Environments**
App Runner accelerates the development lifecycle by providing a streamlined way to create and tear down environments.
* **Scenario:** A development team wants to test new features in an isolated environment that mirrors production as closely as possible.
* **Solution:** Using App Runner, they create a dedicated service for the feature branch, allowing for comprehensive testing without impacting the production application. Once testing is complete, the environment can be easily decommissioned, optimizing resource utilization.
**5. Scheduled Tasks and Batch Jobs**
While primarily known for web applications, App Runner can also execute scheduled tasks and batch jobs.
* **Scenario:** A financial institution needs to run a nightly process to generate reports based on the day's transactions.
* **Solution:** They containerize their script or application logic and configure App Runner to trigger the container execution based on a schedule or an event. App Runner provides the necessary resources and environment for the job to complete successfully.
### Comparison with Other Services
Several other cloud providers offer services comparable to AWS App Runner. Here's a brief comparison:
| Service | Provider | Features |
|-----------------------------------------|-----------|----------------------------------------------------------------------------------------------------|
| App Runner | AWS | Fully managed, supports container images and source code, autoscaling, easy integration with other AWS services |
| Google Cloud Run | Google Cloud | Similar to App Runner, fully managed, supports container images, autoscaling |
| Azure Container Apps | Azure | Supports container images and source code, integrates with other Azure services, autoscaling |
| DigitalOcean App Platform | DigitalOcean | Simplified deployment from Git repositories, automatic HTTPS, scaling options |
| Red Hat OpenShift Serverless (Knative) | Red Hat | Open-source platform, provides more control and flexibility, requires Kubernetes knowledge |
### Conclusion
AWS App Runner empowers developers to streamline application deployment and focus on building innovative solutions. Its ease of use, scalability, and integration with other AWS services make it a powerful tool for modern application development. Whether you're launching a simple web app or deploying complex microservices, App Runner offers a compelling option to simplify your infrastructure management and accelerate your time to market.
## Advanced Use Case: Serverless Image Processing Pipeline
**Challenge:** A media company needs to build a highly scalable and cost-effective solution to process user-uploaded images. The solution should handle image resizing, format conversion, and potentially apply AI-powered image recognition to automatically tag images.
**Solution:** We can leverage several AWS services to construct a powerful serverless image processing pipeline:
**Architecture:**
1. **Image Upload:** Users upload images to an S3 bucket.
2. **Event Trigger:** The S3 upload event triggers an AWS Lambda function.
3. **Lambda Orchestration:** The Lambda function performs initial validation (e.g., file type, size) and invokes an App Runner service for image processing.
4. **App Runner Processing:** The App Runner service, running a containerized image processing application (e.g., using ImageMagick or OpenCV), performs the desired image transformations.
5. **AI-Powered Tagging (Optional):** For image recognition, the App Runner service can leverage Amazon Rekognition, sending the processed image for analysis and receiving back relevant tags.
6. **Storage and Delivery:** The processed images and metadata (including tags) are stored back in S3. A CDN like Amazon CloudFront can be used for efficient global delivery.
**Benefits:**
* **Serverless Efficiency:** Lambda and App Runner eliminate the need for server management, scaling automatically based on demand.
* **Cost-Effectiveness:** Pay only for the resources consumed during image processing.
* **Scalability and Reliability:** The architecture can handle a massive volume of image uploads with high availability.
* **AI Integration:** Seamless integration with AI services like Rekognition enables advanced image analysis capabilities.
**Key Considerations:**
* **Container Optimization:** Ensure the image processing container used in App Runner is optimized for performance and resource utilization.
* **Error Handling:** Implement robust error handling within the Lambda function and App Runner service to gracefully handle any processing failures.
* **Security:** Configure appropriate IAM roles and S3 bucket policies to restrict access to the image processing pipeline.
This advanced use case demonstrates how AWS App Runner, when combined with other AWS services, can be leveraged to build sophisticated and efficient serverless applications that address real-world business challenges.
| virajlakshitha | |
1,894,237 | Transforming App Development with Stable Diffusion Model | 1. Introduction The integration of AI models like Stable Diffusion into app development... | 27,673 | 2024-06-20T02:58:23 | https://dev.to/rapidinnovation/transforming-app-development-with-stable-diffusion-model-2mgl | ## 1\. Introduction
The integration of AI models like Stable Diffusion into app development marks
a transformative era in how applications are designed, developed, and
deployed. Stable Diffusion specializes in generating high-quality images from
textual descriptions, enhancing user engagement and creativity.
## 2\. What is Stable Diffusion Model?
The Stable Diffusion Model is a generative AI model designed to create high-
quality images from textual descriptions. It uses latent diffusion to
transform text into detailed images, making it efficient and rapid in
generating photorealistic visuals.
## 3\. Types of Applications Using Stable Diffusion Model
Stable Diffusion is revolutionizing digital content creation with applications
in:
## 4\. Benefits of Integrating Stable Diffusion Model in Apps
Integrating Stable Diffusion in apps offers:
## 5\. Challenges in Implementing Stable Diffusion Model
Implementing Stable Diffusion comes with challenges such as:
## 6\. Future of App Development with AI Models like Stable Diffusion
The future of app development with AI models like Stable Diffusion is dynamic
and impactful, driven by advancements in technology and changing user
expectations. Trends include increased AI-driven automation, enhanced
personalization, and improved natural language processing.
## 7\. Real-World Examples of Apps Using Stable Diffusion
Examples include:
## 8\. In-Depth Explanations
Understanding the technical architecture and integration techniques of Stable
Diffusion is crucial for successful implementation in apps.
## 9\. Comparisons & Contrasts
Stable Diffusion vs. Other AI Models: Stable Diffusion is notable for its
open-source nature and efficiency, making it accessible and flexible for
developers.
## 10\. Why Choose Rapid Innovation for Implementation and Development
Rapid Innovation offers expertise in AI and Blockchain, a proven track record
with innovative solutions, and a customized development approach to meet
specific client needs.
## 11\. Conclusion
The future outlook for businesses involves a blend of technological adoption,
sustainability focus, and economic adaptability. Companies that navigate these
areas effectively will be well-positioned for success in the evolving global
marketplace.
📣📣Drive innovation with intelligent AI and secure blockchain technology! Check
out how we can help your business grow!
[Blockchain App Development](https://www.rapidinnovation.io/service-
development/blockchain-app-development-company-in-usa)
[Blockchain App Development](https://www.rapidinnovation.io/service-
development/blockchain-app-development-company-in-usa)
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development-company-in-usa)
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development-company-in-usa)
## URLs
* <https://www.rapidinnovation.io/post/app-development-with-stable-diffusion-model>
## Hashtags
#AIAppDevelopment
#StableDiffusion
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#FutureOfTech
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| rapidinnovation | |
1,894,236 | Setting Up Your Own PostgreSQL Playground: A Beginner's Guide | PostgreSQL, a powerful and open-source object-relational database management system (ORDBMS), is a... | 0 | 2024-06-20T02:56:23 | https://dev.to/epakconsultant/setting-up-your-own-postgresql-playground-a-beginners-guide-22kg | postgres | PostgreSQL, a powerful and open-source object-relational database management system (ORDBMS), is a popular choice for businesses and developers alike. Its robust features and reliability make it a great platform to store and manage your data. This guide will walk you through installing and configuring a basic PostgreSQL database, getting you started on your PostgreSQL journey.
Installation:
The installation process varies depending on your operating system.
Here's a quick overview:
• Windows: Download the installer from the official PostgreSQL website https://www.postgresql.org/download/windows/. The installer guides you through the configuration steps.
• macOS: You can install PostgreSQL using Homebrew, a popular package manager for macOS. Follow the instructions on the Homebrew website https://brew.sh/ to install Homebrew, then run the command brew install postgresql in your terminal.
• Linux: Most Linux distributions provide PostgreSQL packages through their repositories. Use your distribution's package manager (e.g., apt-get for Ubuntu/Debian, yum for Red Hat/CentOS) to install the postgresql package.
[Unlocking the Power of TradingView Filters for Optimal Trading](https://www.amazon.com/dp/B0CPW5TPD2)
Basic Configuration:
Once installed, PostgreSQL runs as a service in the background. By default, it allows local connections only. Let's configure it for basic functionality:
1. Start the PostgreSQL service: Use your system's service management tools to start the PostgreSQL service. On Ubuntu/Debian, it's typically sudo systemctl start postgresql.
2. Connect to the default database: Use the psql command-line tool to connect to the default PostgreSQL database. You'll likely need to use sudo before the command, like sudo su - postgres -c psql. The postgres user is the default superuser in PostgreSQL.
3. Set a password for the postgres user: It's crucial to secure your database. Use the ALTER USER command within psql to set a password for the postgres user. Remember to replace your_password with a strong password.
SQL
ALTER USER postgres WITH PASSWORD 'your_password';
4. Create a new user: While you can use the postgres user for development, it's recommended to create a dedicated user for your applications. Use the CREATE ROLE command within psql, specifying a username and password.
SQL
CREATE ROLE myuser LOGIN PASSWORD 'myuser_password';
Creating a Database:
Now that you have a user, let's create a new database for your project:
1. Create the database: Use the createdb command followed by the desired database name.
createdb mydatabase
2. Connect to the new database: Use the psql command again, specifying the database name with the -d flag.
psql -d mydatabase -U myuser
Congratulations! You've successfully installed, configured, and created a basic PostgreSQL database. You can now start creating tables, defining schemas, and manipulating data using SQL commands within psql.
Additional Considerations:
This guide provides a basic setup. Here are some points to consider for further exploration:
• Security: We've covered setting passwords for users. Explore more advanced security features like pg_hba.conf for access control.
• Remote Access: By default, PostgreSQL allows local connections only. You can configure it for remote access if needed.
• Client Tools: There are many graphical user interface (GUI) and command-line tools available to interact with PostgreSQL databases. Explore options like pgAdmin or DBeaver.
• PostgreSQL Documentation: The official PostgreSQL documentation https://www.postgresql.org/docs/ is a valuable resource for further learning.
By following these steps and exploring the vast capabilities of PostgreSQL, you'll be well on your way to managing your data effectively.
| epakconsultant |
1,894,235 | Analysis of the small-pitch LED market in the second half of 2024 | High-end exhibitions, smart cities and program broadcasting: the dominant force In the second half... | 0 | 2024-06-20T02:55:36 | https://dev.to/sostrondylan/analysis-of-the-small-pitch-led-market-in-the-second-half-of-2024-40gj | led, display, applications | High-end exhibitions, smart cities and program broadcasting: the dominant force
In the second half of 2024, high-end exhibitions, smart cities and program broadcasting will continue to be the dominant forces in the growth of the [small-pitch LED](https://sostron.com/products/) application market. These three application scenarios are driving the development of the market with overwhelming advantages. As typical representatives of high-end display applications, they are highly consistent with the industry development trend of high-end small-pitch LED applications.
High-end exhibitions require high-quality, large-size display screens to provide a shocking visual experience; in smart city projects, small-pitch LEDs are used in scenes such as urban monitoring and traffic management, requiring high resolution and reliability; program broadcasting requires seamless splicing and high-quality color reproduction of small-pitch LED screens to ensure broadcast effects. These demands have driven the widespread application and market recognition of small-pitch LEDs in these fields. [Here is everything about small-pitch LED displays.](https://sostron.com/everything-about-small-pitch-led-display/)
Challenges and opportunities in marketing
Although small-pitch LEDs have risen rapidly and market awareness has continued to increase under the promotion of major manufacturers, the high application cost is still a major obstacle in market promotion. When there are LCD splicing and DLP splicing products that can meet the needs, industry users who pursue cost-effectiveness will naturally not choose small-pitch LED screens. However, in the high-end application market, users are more concerned about the application effect and are willing to pay a premium for the excellent performance of small-pitch LEDs, thus providing them with ample room for development.
Possibility of cost reduction
Will small-pitch LED products be limited to high-end market applications? The answer is no. As the technology matures and the industry scale expands, the cost will decrease. Among the component costs of small-pitch LED displays, the cost of lamp beads accounts for 60% to 80%. As long as the cost of lamp beads decreases due to economies of scale, the overall cost of small-pitch LED displays will also decrease. It is expected that in the next few years, with the advancement of production technology and the increase in market demand, the cost of small-pitch LEDs will be further reduced and enter more mid- and low-end markets. [Let's take you to understand the working principle of LED lamp beads. ](https://sostron.com/the-working-principle-of-led-lamp-beads/)
Market Outlook for the Second Half of 2024
In the second half of 2024, the high-end application market will still be the main breakthrough for small-pitch LEDs to expand the traditional large-screen application market. However, the competition between LCD splicing products and DLP splicing products is still fierce. LCD splicing companies regard 3.5mm splicing products as a weapon to expand the high-end market, and DLP splicing is also constantly defending its market share. The strong entry of small-pitch LEDs has made the competition in the high-end display market more intense. [What is the difference between LED and LCD panels? ](https://sostron.com/seven-differences-between-led-and-lcd-panels/)
It is expected that in the second half of 2024, the high-end display market will continue to change drastically, while the mid- and low-end display market will be relatively calm. This will become the mainstream development tone of the large-screen display market. The advantages of small-pitch LEDs in the high-end market will be further consolidated, while its expansion in the mid- and low-end markets will need to rely on technological progress and cost reduction.
Conclusion
In the second half of 2024, the small-pitch LED market will continue to be driven by strong demand from high-end exhibitions, smart cities, and program broadcasting. Although the current high cost is the main obstacle to its promotion, as the technology matures and economies of scale emerge, cost reduction will pave the way for its entry into a wider market. The fierce competition in the high-end display market and the relative calmness in the mid- and low-end markets will jointly constitute the main theme of the development of the large-screen display market in the second half of the year. The prospects for small-pitch LEDs remain bright, and their position in the high-end market will be further consolidated, while they are also expected to make breakthroughs in the mid- and low-end markets.
Thank you for watching. I hope we can solve your problems. Sostron is a professional [LED display manufacturer](https://sostron.com/about-us/). We provide all kinds of displays, display leasing and display solutions around the world. If you want to know: [What is the relationship between the grayscale and brightness of LED displays?](https://dev.to/sostrondylan/what-is-the-relationship-between-the-grayscale-and-brightness-of-led-displays-1g90) Please click read.
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Contact us on WhatsApp：https://api.whatsapp.com/send?phone=+8613570218702&text=Hello | sostrondylan |
1,894,228 | Using Miniconda with Conda-Forge to Avoid Anaconda Licensing Issues | In the world of data science and Python development, Anaconda has long been a popular choice due to... | 0 | 2024-06-20T02:46:29 | https://dev.to/kaamisan/using-miniconda-with-conda-forge-to-avoid-anaconda-licensing-issues-5hkj | conda, python, anaconda, license | In the world of data science and Python development, Anaconda has long been a popular choice due to its comprehensive package management and environment management capabilities. However, [recent changes](https://www.anaconda.com/blog/is-conda-free) in Anaconda's licensing policies have made some organizations with more than 200 employees, look for alternatives. Who wants to pay 600USD for one license!! An alternative is to use Miniconda, a lightweight version of Anaconda, in combination with the `conda-forge` channel. This setup provides a flexible and open-source approach to managing Python packages and environments.
In this blog post, I'll guide you through the process of setting up Miniconda with `conda-forge` to avoid Anaconda's licensing issues.
#### MINICONDA
Miniconda is a minimal installer for conda, an open-source package management system and environment management system. While Anaconda comes with a large number of pre-installed packages, Miniconda includes only conda and its dependencies. This allows users to create custom environments with just the packages they need, keeping things lightweight and manageable.
#### CONDA-FORGE
Conda-forge is a community-led collection of recipes, build infrastructure, and distributions for the `conda` package manager. The `conda-forge` channel provides a vast array of packages and is completely open-source, which helps in avoiding any potential licensing issues that might arise with using Anaconda's default repository.
#### SETTING UP
First remove Anaconda from your system. And then follow these steps to set up Miniconda with `conda-forge`:
##### Step 1: Download and Install Miniconda
You can install `miniconda` by following the steps listed [here.](https://docs.anaconda.com/miniconda/)
##### Step 2: Initialize Conda (if not done during installation)
If you didn't initialize Miniconda during the installation, you can do it manually by running:
```bash
conda init
```
This command modifies your shell startup file (e.g., `.bashrc`, `.zshrc`, or `.bash_profile`) to enable conda in your shell sessions.
##### Step 3: Add Conda-Forge as the Default Channel
To configure `conda` to use `conda-forge` as the primary channel, run the following command:
```bash
conda config --remove channels defaults
conda config --add channels conda-forge
conda config --set channel_priority strict
```
This command removes the `defaults` channel, which is causing the license issue, adds conda-forge to the list of channels and sets it as the highest priority channel, ensuring that packages are installed from conda-forge by default.
##### Step 4: Create a New Environment
With conda-forge configured, you can create a new environment. For example, to create an environment named `myenv` with Python 3.9, you can run:
```bash
conda create -n myenv python=3.9
```
Activate the environment with:
```bash
conda activate myenv
```
Check the channels and make sure `defaults` is not mentioned.
```bash
conda config --show channels
```
##### Step 5: Install Packages from Conda-Forge
Now you can install packages from `conda-forge`. For instance, to install NumPy and Pandas, use the following command:
```bash
conda install numpy pandas
```
Conda will resolve dependencies and install the specified packages from conda-forge.
##### Step 6: Verify Package Sources
To ensure that the packages are being installed from conda-forge, you can use the `conda list` command to list the installed packages along with their channels:
```bash
conda list
```
Look for the `channel` column in the output to verify that packages are being sourced from conda-forge.
#### CONCLUSION
Using `miniconda` with `conda-forge` is a powerful combination that allows you to avoid the licensing issues associated with Anaconda while still leveraging the full power of the `conda` package and environment management system. By following the steps outlined in this blog post, you can set up a flexible and open-source Python development environment tailored to your specific needs.
#### REFERENCES
1. Header Image: https://www.pexels.com/photo/brown-and-black-snake-on-brown-tree-branch-4063745/
| kaamisan |
1,891,089 | Android Performance Optimization: Best Practices and Tools | Introduction In early 2015, Google launched a series of 16 brief videos on Android... | 0 | 2024-06-20T02:46:25 | https://dev.to/wetest/android-performance-optimization-best-practices-and-tools-262g | # Introduction
In early 2015, Google launched a series of 16 brief videos on Android performance optimization best practices. These 3-5 minute videos aimed to help developers build faster and more efficient Android apps. The course not only explained the fundamental principles of performance issues in the Android system but also demonstrated how to utilize tools to identify performance problems and offered tips for enhancing performance. The primary topics covered include Android's rendering mechanism, memory and garbage collection, and power optimization. Here's a summary of these topics and recommendations.
**1. Render Performance**
The majority of performance issues, such as lag, experienced by users are primarily due to rendering performance. From a designer's perspective, they want the app to feature more animations, images, and other trendy elements to achieve a smooth user experience. However, the Android system might struggle to complete these complex rendering operations in a timely fashion. The Android system sends out a VSYNC signal every 16ms, which triggers the rendering of the UI. If each rendering is successful, it can reach the 60fps needed for a smooth display. To achieve 60fps, it means that most of the app's operations must be completed within 16ms.
If a specific operation takes 24ms, the system won't be able to perform normal rendering when it receives the VSYNC signal, leading to dropped frames. In this case, the user will see the same frame for 32ms.
Users may easily notice lag and stutter when the UI performs animations or while scrolling through a ListView, as these operations are relatively complex and susceptible to dropped frames, resulting in a laggy experience. Several factors can cause dropped frames, such as overly complex layouts that can't be rendered within 16ms, too many overlapping drawing elements on the UI, or excessive animation executions. All of these can lead to increased CPU or GPU load.
We can use tools to identify issues, such as HierarchyViewer to check if an Activity's layout is too complex, or enable Show GPU Overdraw and other options within the phone's developer settings for observation. Additionally, TraceView can be used to monitor CPU execution and more quickly pinpoint performance bottlenecks.
**2. Understanding Overdraw**
Overdraw occurs when a pixel on the screen is drawn multiple times within the same frame. In a multi-layered UI structure, if invisible UI elements are also being drawn, this can cause some pixel areas to be drawn multiple times. This wastes a significant amount of CPU and GPU resources.
In pursuit of more visually impressive designs, it's easy to fall into the trap of using an increasing number of stacked components to achieve these effects. This can easily lead to numerous performance issues. To achieve optimal performance, we must minimize the occurrence of overdraw.
Thankfully, we can enable the Show GPU Overdraw option in the developer settings on the phone to observe the overdraw situation on the UI.
Blue, light green, light red, and dark red represent four different levels of overdraw. Our goal is to minimize the red overdraw and see more blue areas.
Overdraw can sometimes be caused by excessive overlapping parts in your UI layout or by unnecessary overlapping backgrounds. For example, an Activity may have a background, then the layout inside it has its own background, and the child views each have their own backgrounds. By simply removing unnecessary background images, you can significantly reduce the red overdraw areas and increase the proportion of blue areas. This step can greatly improve the performance of the app.
**3. Understanding VSYNC**
To comprehend how an app is rendered, we need to understand how the phone hardware operates, and that requires knowing what VSYNC is.
Before explaining VSYNC, we need to understand two related concepts:
Refresh Rate: This represents the number of times the screen is refreshed in one second, which depends on the fixed parameters of the hardware, such as 60Hz.
Frame Rate: Represents the number of frames drawn by the GPU in one second, such as 30fps or 60fps.
The GPU renders graphic data, and the hardware is responsible for presenting the rendered content on the screen. They continuously work together.
Unfortunately, the refresh rate and frame rate can't always maintain the same pace. If the frame rate and refresh rate are inconsistent, tearing can easily occur (the top and bottom parts of the screen display content breaks, overlapping from different frames).
To understand the double and triple buffering mechanisms in image rendering, this concept is quite complex; please refer to http://source.android.com/devices/graphics/index.html and http://article.yeeyan.org/view/37503/304664.
Generally speaking, having a frame rate higher than the refresh rate is ideal. When the frame rate exceeds 60fps, the frame data generated by the GPU will be held back, waiting for the VSYNC refresh information. This ensures that there is new data to display every time the screen is refreshed. However, we often encounter situations where the frame rate is lower than the refresh rate.
In this case, the content displayed in some frames will be the same as the previous frame. The worst part is when the frame rate suddenly drops from above 60fps to below 60fps, causing lag, jank, hitching, and other unsmooth situations due to dropped frames. This is also the reason for poor user experience.
**4. Tool: Profile GPU Rendering**
Performance issues can be challenging, but luckily, we have tools to debug them. Open the developer options on your phone, select Profile GPU Rendering, and choose the On screen as bars option.
After selecting this, we can see detailed GPU rendering graphics information on the phone screen, specifically about the StatusBar, NavBar, and the active app's Activity area GPU rendering information.
As the interface refreshes, vertical bar graphs will scroll across the screen to represent the time required to render each frame. The higher the bar graph, the longer the rendering time.
There is a green horizontal line in the middle, representing 16ms. We need to ensure that the total time spent on each frame is below this line to avoid lag issues.
Each bar graph consists of three parts: blue represents the time to measure and draw the Display List, red represents the time required for OpenGL to render the Display List, and yellow represents the time the CPU waits for the GPU to process.
**5. Why 60fps?**
We often mention 60fps and 16ms, but do you know why an app's performance is measured by whether it reaches 60fps? This is because the combination of the human eye and the brain cannot perceive screen updates beyond 60fps.
12fps is roughly similar to the frame rate of manually flipping through a book quickly, which is noticeably not smooth enough. 24fps allows the human eye to perceive continuous linear motion, which is actually due to the motion blur effect. 24fps is the frame rate commonly used in film reels, as it is sufficient to support most movie scenes while minimizing costs. However, frame rates below 30fps cannot smoothly display stunning visuals, so 60fps is needed to achieve the desired effect, and anything beyond 60fps is unnecessary.
The performance goal for app development is to maintain 60fps, which means you only have 16ms = 1000/60 of time to process all tasks in each frame.
**6. Android, UI, and the GPU**
Understanding how Android uses the GPU for screen rendering is essential for grasping performance issues. A practical question to consider is: how is an activity's screen drawn onto the display? How are complex XML layout files recognized and rendered?
Rasterization is the fundamental process for drawing components like buttons, shapes, paths, strings, bitmaps, etc. It breaks these components down into individual pixels for display. This process can be time-consuming, and the GPU's introduction aims to speed up rasterization.
The CPU is responsible for converting UI components into polygons and textures, which are then passed to the GPU for rasterization rendering.
However, transferring data from the CPU to the GPU can be challenging. Thankfully, OpenGL ES can store textures that need to be rendered in GPU memory, allowing for direct manipulation the next time they are needed. If you update the texture content held by the GPU, the previously saved state will be lost.
In Android, resources provided by themes, such as bitmaps and drawables, are bundled into a unified texture and then sent to the GPU. This means that every time you need to use these resources, they are directly retrieved and rendered from the texture. As UI components become more diverse and abundant, more complex processes are required. For example, when displaying an image, it must first be calculated by the CPU, loaded into memory, and then passed to the GPU for rendering. Text display is even more complicated, as it requires the CPU to convert it into a texture, then hand it over to the GPU for rendering, and finally return to the CPU for drawing individual characters while referencing the content rendered by the GPU. Animation involves an even more complex operation flow.
To ensure a smooth app experience, all CPU and GPU calculations, drawing, rendering, and other operations must be completed within 16ms per frame.
**7. Invalidations, Layouts, and Performance**
Smooth and sophisticated animations are crucial in app design, as they significantly enhance the user experience. This section will discuss how the Android system handles updates to UI components.
Generally, Android needs to convert XML layout files into objects that the GPU can recognize and render. This operation is completed with the help of DisplayList. DisplayList holds all the data information that will be passed to the GPU for rendering on the screen.
When a View needs to be rendered for the first time, a DisplayList is created. To display this View on the screen, the GPU's drawing instructions for rendering are executed. If you need to render this View again due to operations like moving its position, you only need to execute the rendering instruction one more time. However, if you modify some visible components within the View, the previous DisplayList can no longer be used, and a new DisplayList must be created, rendering instructions re-executed, and the screen updated.
It's important to note that every time the drawing content in a View changes, a series of operations, such as creating a DisplayList, rendering the DisplayList, and updating the screen, will be executed. The performance of this process depends on the complexity of your View, the changes in the View's state, and the rendering pipeline's execution performance. For example, if a Button's size needs to be doubled, the parent View must recalculate and rearrange the positions of other child Views before increasing the Button's size. Modifying the View's size will trigger a resizing operation for the entire HierarchyView. If the View's position is changed, it will prompt the HierarchyView to recalculate the positions of other Views. If the layout is very complex, this can easily lead to severe performance issues. Minimizing overdraw as much as possible is essential.
We can use the previously introduced Monitor GPU Rendering to check rendering performance and the Show GPU view updates option in Developer Options to view update operations. Finally, we can use the HierarchyViewer tool to view layouts, making them as flat as possible, removing unnecessary UI components, and reducing the calculation time for Measure and Layout.
**8. Overdraw, ClipRect, QuickReject**
One critical aspect that causes performance issues is excessive and complex drawing operations. We can use tools to detect and fix overdraw issues for standard UI components, but they may not be as effective for highly customized UI components.
One trick to significantly improve drawing operation performance is by executing a few APIs. As mentioned earlier, drawing updates for non-visible UI components can cause overdraw. For example, after the Nav Drawer slides out from the foreground visible Activity, if the non-visible UI components inside the Nav Drawer continue to be drawn, this leads to overdraw. To resolve this issue, the Android system tries to minimize overdraw by avoiding drawing completely invisible components. Those non-visible Views inside the Nav Drawer will not be executed, thus saving resources.
Unfortunately, for overly complex custom Views (those that override the onDraw method), the Android system cannot detect what operations will be performed in onDraw, making it unable to monitor and automatically optimize, and thus unable to prevent overdraw. However, we can use canvas.clipRect() to help the system identify visible areas. This method specifies a rectangular area where only content within this area will be drawn, and other areas will be ignored. This API is great for helping custom Views with multiple overlapping components control the display area. Additionally, the clipRect method can help save CPU and GPU resources, as drawing instructions outside the clipRect area will not be executed, and components with partial content within the rectangular area will still be drawn.
In addition to the clipRect method, we can also use canvas.quickReject() to determine if there is no intersection with a rectangle, thus skipping drawing operations outside the rectangular area. After making these optimizations, we can use the Show GPU Overdraw mentioned earlier to check the results.
**9. Memory Churn and Performance**
Although Android has an automatic memory management mechanism, improper use of memory can still cause serious performance issues. Creating too many objects within the same frame is a matter of particular concern.
Android has a Generational Heap Memory model, where the system performs different GC operations based on different memory data types. For example, recently allocated objects are placed in the Young Generation area, where objects are usually quickly created and soon destroyed and recycled. The GC operation speed in this area is also faster than in the Old Generation area.
In addition to the speed difference, during GC operations, any operation from any thread must pause and wait for the GC operation to complete before other operations can resume.
Generally, a single GC operation does not take up much time, but a large number of continuous GC operations can significantly occupy the frame interval time (16ms). If too many GC operations are performed within the frame interval, the available time for other operations like calculations and rendering will naturally decrease.
There are two reasons for frequent GC execution:
Memory Churn occurs when a large number of objects are created and then quickly released in a short period.
Instantly creating a large number of objects severely occupies the Young Generation memory area. When the remaining space is insufficient, reaching the threshold, GC is triggered. Even if each allocated object occupies very little memory, their accumulation increases the heap pressure, triggering more GC operations of other types. This process can potentially affect the frame rate and make users perceive performance issues.
To solve the above problems, there is a simple and intuitive method. If you see multiple memory fluctuations in a short period in Memory Monitor, it is likely that memory churn has occurred.
Additionally, you can use the Allocation Tracker to view the same objects constantly entering and exiting the same stack in a short period. This is one of the typical signals of memory churn.
Once you have roughly located the problem, the subsequent problem-fixing becomes relatively straightforward. For example, you should avoid allocating objects in for loops, try to move object creation outside the loop body, and pay attention to the onDraw method in custom Views. The onDraw method will be called each time the screen is drawn and during animation execution. Avoid performing complex operations and creating objects in the onDraw method. For situations where object creation is unavoidable, you can consider using an object pool model to solve the frequent creation and destruction problem. However, it is important to note that you need to manually release the objects in the object pool after they are no longer in use.
**10. Garbage Collection in Android**
The JVM's garbage collection mechanism offers significant benefits to developers, as they don't have to constantly deal with object allocation and recycling, allowing them to focus more on higher-level code implementation. Compared to Java, languages like C and C++ have higher execution efficiency, but they require developers to manage object allocation and recycling themselves. However, in a large system, it is inevitable that some objects will be forgotten to be recycled, leading to memory leaks.
The original JVM's garbage collection mechanism has been greatly optimized in Android. Android has a three-level Generation memory model: recently allocated objects are stored in the Young Generation area, and when the object stays in this area for a certain period, it will be moved to the Old Generation, and finally to the Permanent Generation area.
Each level of the memory area has a fixed size, and new objects are continuously allocated to this area. When the total size of these objects is close to the threshold of the memory area, GC operation is triggered to free up space for other new objects.
As mentioned earlier, all threads are paused when GC occurs. The time taken by GC is related to which Generation it is in, with Young Generation having the shortest GC operation time, Old Generation being second, and Permanent Generation being the longest. The duration of the operation is also related to the number of objects in the current Generation. Naturally, traversing 20,000 objects is much slower than traversing 50 objects.
Although Google engineers are trying to shorten the time spent on each GC operation, it is still necessary to pay special attention to performance issues caused by GC. If you accidentally execute object creation operations in the smallest for loop unit, it will easily trigger GC and cause performance problems. Through Memory Monitor, we can see the memory usage status, and each instant memory reduction is due to GC operation at that time. If a large number of memory increases and decreases occur in a short period, it is likely that there are performance issues. We can also use the Heap and Allocation Tracker tool to see which objects are allocated in memory at the moment.
**11. Performance Cost of Memory Leaks**
Although Java has an automatic garbage collection mechanism, it does not mean that there are no memory leak issues in Java, and memory leaks can easily lead to serious performance problems.
Memory leaks refer to objects that are no longer used by the program but cannot be recognized by the GC, causing these objects to remain in memory and occupy valuable memory space. Obviously, this also reduces the available space in each level of the Generation memory area, making GC more likely to be triggered and causing performance issues.
Finding and fixing memory leaks is a tricky task, as you need to be familiar with the executed code, clearly understand how it runs in a specific environment, and then carefully investigate. For example, if you want to know whether the memory occupied by a certain activity in the program is completely released when the activity exits, you first need to use the Heap Tool to obtain a memory snapshot of the current state when the activity is in the foreground. Then, you need to create an almost memory-free blank activity for the previous Activity to jump to, and during the jump to the blank activity, actively call the System.gc() method to ensure that a GC operation is triggered. Finally, if all the memory of the previous activity has been correctly released, there should be no objects from the previous activity in the memory snapshot after the blank activity is launched.
If you find some suspicious objects that have not been released in the memory snapshot of the blank activity, you should use the Allocation Track Tool to carefully look for specific suspicious objects. You can start monitoring from the blank activity, launch the observed activity, and then return to the blank activity to end the monitoring. After doing this, you can carefully observe those objects and find the real culprit of the memory leak.
**12. Memory Performance**
Generally, Android has made many optimizations for garbage collection. Although other tasks are paused during GC operations, in most cases, GC operations are relatively quiet and efficient. However, if our memory usage is improper and causes frequent GC execution, it can lead to significant performance issues.
To find memory performance issues, Android Studio provides tools to help developers.
Memory Monitor: View the memory occupied by the entire app and the moments when GC occurs. A large number of GC operations in a short period is a dangerous signal.
Allocation Tracker: Use this tool to track memory allocation, as mentioned earlier.
Heap Tool: View the current memory snapshot to facilitate comparison analysis of which objects may have leaked. Please refer to the previous case for details.
**13. Tool - Memory Monitor**
Memory Monitor in Android Studio is a great tool to help us monitor the memory usage of the program.
**14. Battery Performance**
Battery power is one of the most valuable resources for handheld devices, as most devices need to be constantly charged to maintain continuous use. Unfortunately, for developers, battery optimization is often the last thing they consider. However, it is crucial not to let your app become a major battery consumer.
Purdue University studied the battery consumption of some of the most popular apps and found that on average, only about 30% of the battery power is used by the program's core methods, such as drawing images and arranging layouts. The remaining 70% is used for reporting data, checking location information, and periodically retrieving background ad information. Balancing the power consumption of these two aspects is very important.
There are several measures that can significantly reduce battery consumption:
We should try to minimize the number of times the screen is awakened and the duration of each awakening. Using WakeLock to handle awakening issues can correctly execute awakening operations and enter sleep mode according to the settings in a timely manner.
For some operations that do not need to be executed immediately, such as uploading songs and image processing, they can be performed when the device is charging or has sufficient battery power.
Triggering network requests will maintain a wireless signal for a period each time. We can bundle scattered network requests into a single operation to avoid excessive battery consumption caused by wireless signals. For more information on battery consumption caused by wireless signals due to network requests, please refer to http://hukai.me/android-training-course-in-chinese/connectivity/efficient-downloads/efficient-network-access.html
We can find the battery consumption statistics for the corresponding app through the phone settings option. We can also view detailed battery consumption using the Battery Historian Tool.
If we find that our app has excessive battery consumption issues, we can use the JobScheduler API to schedule some tasks, such as processing heavier tasks when the phone is charging or connected to Wi-Fi. For more information about JobScheduler, please refer to http://hukai.me/android-training-course-in-chinese/background-jobs/scheduling/index.html
**15. Understanding Battery Drain on Android**
Calculating and tracking battery consumption is a challenging and contradictory task, as recording battery consumption itself also consumes power. The only viable solution is to use third-party devices to monitor battery power, which can provide accurate battery consumption data.
The power consumption of a device in standby mode is minimal. For example, with the Nexus 5, turning on airplane mode allows it to be on standby for nearly a month. However, when the screen is lit, various hardware modules need to start working, which requires a lot of power.
After using WakeLock or JobScheduler to wake up the device to handle scheduled tasks, it is essential to return the device to its initial state promptly. Each time the wireless signal is awakened for data transmission, a lot of power is consumed. This is even more power-hungry than operations like Wi-Fi. For more details, please visit http://hukai.me/android-training-course-in-chinese/connectivity/efficient-downloads/efficient-network-access.html
Addressing battery consumption is another significant topic, which will not be expanded upon here.
**16. Battery Drain and WakeLocks**
Efficiently preserving battery power while constantly prompting users to use your app can be a contradictory choice. However, we can use better methods to balance the two.
Suppose you have a large number of social apps installed on your phone. Even when the phone is in standby mode, it will often be awakened by these apps to check and synchronize new data information. Android continuously shuts down various hardware components to extend the phone's standby time. First, the screen gradually dims until it turns off, and then the CPU goes to sleep. All these operations aim to save valuable battery resources. However, even in this sleep state, most apps will still try to work and continuously wake up the phone. The simplest way to wake up the phone is to use the PowerManager.WakeLock API to keep the CPU working and prevent the screen from dimming and turning off. This allows the phone to be awakened, perform tasks, and then return to sleep mode. Knowing how to acquire WakeLock is simple, but it is also crucial to release WakeLock promptly. Improper use of WakeLock can lead to severe errors. For example, the data return time of a network request is uncertain, causing something that should only take 10 seconds to wait for an hour, wasting battery power. This is why using the wakelock.acquire() method with a timeout parameter is crucial. However, simply setting a timeout is not enough to solve the problem, such as determining the appropriate timeout length and when to retry, etc.
To solve the above problems, the correct approach might be to use non-precise timers. Generally, we set a time for a specific operation, but dynamically modifying this time may be better. For example, if another program needs to wake up 5 minutes later than the time you set, it is best to wait until that moment and perform the two tasks simultaneously. This is the core working principle of non-precise timers. We can customize scheduled tasks, but if the system detects a better time, it can postpone your task to save battery consumption.
This is what the JobScheduler API does. It combines the current situation and tasks to find the ideal wake-up time, such as waiting until the device is charging or connected to Wi-Fi or executing tasks together. We can implement many flexible scheduling algorithms through this API.
Starting with Android 5.0, the Battery History Tool was released. It can view the frequency of the program being awakened, who awakened it, and how long it lasted.
Please pay attention to the app's battery consumption. Users can observe high battery-consuming apps through the phone's settings and may decide to uninstall them. Therefore, it is essential to minimize the app's battery consumption. | wetest | |
1,894,227 | Nuxt3 CSR Background Image Lazy loading | I currently have background images being displayed for my pages from within the CSS.... | 0 | 2024-06-20T02:43:38 | https://dev.to/kontact00/nuxt3-csr-background-image-lazy-loading-28i7 | nuxt3, webdev, nuxt, javascript |
I currently have background images being displayed for my pages from within the CSS. i.e.
```
.Inner-Page-Banner {
width: 100%;
height: auto;
min-height: 280px;
background: url(../img/trailer-owners.webp) no-repeat center top;
margin-top: 85px;
text-align: center;
}
```
I'm going through the process of performance optimisation and changing from img to NuxtImg
I've already changed my Background images to web however I'm wanting to know if there is a way to apply NuxtImg to the CSS or whether there is another way I should be doing this.
Thanks | kontact00 |
1,894,226 | https://youtu.be/cLOT0APQzDs?si=-BkWdqi4Tc16aeQ2 | A post by Elahe Adz | 0 | 2024-06-20T02:31:50 | https://dev.to/elahe_adz_464473549b9e89f/httpsyoutubeclot0apqzdssi-bkwdqi4tc16aeq2-2eom | elahe_adz_464473549b9e89f | ||
1,894,225 | Exploring AI-Assisted UI Development: Lessons from Creating a Hacker News Clone | Recently, I've become interested in exploring the use of AI as a collaborator in the coding process.... | 0 | 2024-06-20T02:30:25 | https://dev.to/spencertower/exploring-ai-assisted-ui-development-lessons-from-creating-a-hacker-news-clone-1nne | Recently, I've become interested in exploring the use of AI as a collaborator in the coding process. How can it expedite development, and what are the potential benefits and drawbacks of this approach?
After watching the following video: [Building Hacker News with AI, describe a UI and AI builds it for us](https://www.youtube.com/watch?v=rCDOI8vRpz0), I decided to try implementing a similar approach, creating a Hacker News UI clone as a way to get more experience utilizing AI as an assistant.
The video uses Rendition, an AI assistant that translates text into Figma designs. I chose to create my clone from scratch, using Chat GPT (the unpaid plan based on Chat GPT 4, June 2023 version), Next.js, React, Typescript, and Tailwind CSS.
My goal was to experiment with how different prompts, varying in detail, yield different results. I'll focus on the Hacker News header to test these prompts.
Ideally, I would like a prompt to yield an "80/20" outcome where the AI generates around 80 percent of the code, and I only need to do 20 percent of the editing to make it match the website exactly. It would likely become more time consuming to attempt to engineer a perfect prompt (which probably doesn't exist anyways) than to generate a solid foundation and intervene with a few code edits here and there.
Each prompt was input in a separate chat session with the idea that responses would be generated independently of one another, without building on prior context.
The rest will be a simple account of my experience tinkering with prompts to get Chat GPT to generate the most accurate header component for the Hacker News front page.
---
##Prompts and Results:
Initially, I considered reviewing the docs for prompt engineering suggestions. The docs suggest detailed prompts with clear delimiters between sections to leave as little as possible for the AI to interpret. (I also asked ChatGPT directly what kind of prompt would be most effective given the technologies I planned to use, just to see if its answer matched the docs. Unsurprisingly, ChatGPT's suggestion aligned closely with the prompt format laid out in the docs.)
While this clearly sounded like the most sensible approach, I wanted to see how vague I could be with prompts and still get a solid foundation for a component. Here are a few of the prompts I tested:
---
##Prompt 1: Following the Video's Example
I decided to implement the exact same prompt used in the video to see the difference in how Chat GPT with React and Typescript differed from Rendition. I thought it would be interesting to see what the results were here given that this prompt is quite a bit different from the approach suggested in the OpenAI documentation. The prompt uses more abbreviated wording than what is suggested and is all in one paragraph:
_"The component will be in a nextjs app using typescript and tailwinds css. Here is the description:_
_hacker news top bar, a single row of (left: logo, title, navlinks) and (right: login link). bold orange background. black text. links content: Hacker News new | past | comments | ask | show | jobs | submit"_
**_Result:_**
```TS
const TopBar: React.FC = () => {
return (
<div className="bg-orange-500 p-4 flex justify-between items-center">
<div className="flex items-center space-x-4">
<img src="/logo.png" alt="Hacker News Logo" className="h-6" />
<span className="text-black font-bold">Hacker News</span>
<nav className="flex space-x-4">
<Link href="/new" className="text-black">
new
</Link>
<Link href="/past" className="text-black">
past
</Link>
<Link href="/comments" className="text-black">
comments
</Link>
<Link href="/ask" className="text-black">
ask
</Link>
<Link href="/show" className="text-black">
show
</Link>
<Link href="/jobs" className="text-black">
jobs
</Link>
<Link href="/submit" className="text-black">
submit
</Link>
</nav>
</div>
<div>
<Link href="/login" className="text-black">
login
</Link>
</div>
</div>
);
};
```
This yielded decent results, but the image is broken and includes a label to its right. It did not pick up on the pipes as delimiters between the links as Rendition did in the video, but overall it is still quite accurate.
---
##Prompt 2: Testing the Waters with Vague Instructions
I tried an exceptionally vague prompt to see what it would come up with on its own with minimal input:
_"generate code for the hackernews header in nextjs, react, typescript, and tailwinds"_
**_Result:_**
```TS
const Header: React.FC = () => {
return (
<header className="bg-orange-500 text-white p-4 flex justify-between items-center">
<div className="flex items-center space-x-2">
<div className="bg-white text-black font-bold p-1 rounded">
<span className="text-orange-500">Y</span>
</div>
<Link href="/" className="font-bold text-xl">
Hacker News
</Link>
<nav className="space-x-4">
<Link href="/new">new</Link>
<span>|</span>
<Link href="/past">past</Link>
<span>|</span>
<Link href="/comments">comments</Link>
<span>|</span>
<Link href="/ask">ask</Link>
<span>|</span>
<Link href="/show">show</Link>
<span>|</span>
<Link href="/jobs">jobs</Link>
<span>|</span>
<Link href="/submit">submit</Link>
</nav>
</div>
<div className="flex items-center space-x-4">
<input
type="text"
placeholder="Search"
className="p-1 rounded border border-gray-300"
/>
<Link href="/login">login</Link>
</div>
</header>
);
};
```
This was surprisingly accurate given no detail was provided aside from “hackernews” and “header”. However, it missed the text color, styling is off for the logo, and spacing between links is off. It also added a search bar. But this does show how little information Chat GPT can go off of and still get the foundations right.
---
##Prompt 3: Generating Code from a Website Link
Providing only a link to the website:
_"generate code for the header of this website: https://news.ycombinator.com/ use nextjs, react, typescript, and tailwinds css"_
**_Result:_**
```TS
const Header: React.FC = () => {
return (
<header className="bg-[#ff6600] p-1">
<div className="container mx-auto flex items-center space-x-2">
<div className="flex items-center space-x-1">
<img
src="/y18.gif"
alt="Y Combinator logo"
className="w-6 h-6"
/>
<Link href="/" className="text-black font-bold text-lg">
Hacker News
</Link>
</div>
<nav className="flex-1">
<ul className="flex space-x-2 text-sm">
<li>
<Link href="/newest" className="text-black">
new
</Link>
</li>
<li>|</li>
<li>
<Link href="/front" className="text-black">
past
</Link>
</li>
<li>|</li>
<li>
<Link href="/newcomments" className="text-black">
comments
</Link>
</li>
<li>|</li>
<li>
<Link href="/ask" className="text-black">
ask
</Link>
</li>
<li>|</li>
<li>
<Link href="/show" className="text-black">
show
</Link>
</li>
<li>|</li>
<li>
<Link href="/jobs" className="text-black">
jobs
</Link>
</li>
<li>|</li>
<li>
<Link href="/submit" className="text-black">
submit
</Link>
</li>
</ul>
</nav>
<div className="flex items-center space-x-2">
<input
type="text"
className="border rounded px-1 text-sm"
placeholder="Search"
/>
<Link href="/login" className="text-black text-sm">
login
</Link>
</div>
</div>
</header>
);
};
```
Again, mostly accurate but the image is broken, the spacing is a little off, and there is a search bar, but the text styling is right this time. But still off of only a link.
---
##Prompt 4: Using a Screenshot as a Prompt
Uploading a screenshot with no further description of the component:
_"generate code for the header of this website for nextjs, react, typescript, and tailwinds css"_
**_Result:_**
```TS
const Header: React.FC = () => {
return (
<div className="bg-orange-500 py-2">
<div className="container mx-auto flex items-center justify-between px-4">
<div className="flex items-center space-x-1">
<div className="bg-white h-6 w-6 flex items-center justify-center text-black font-bold">
<span>Y</span>
</div>
<Link href="/" className="text-white font-bold text-lg">
Hacker News
</Link>
<nav className="space-x-2 ml-4">
<Link href="/new" className="text-white">
new
</Link>
<span className="text-white">|</span>
<Link href="/past" className="text-white">
past
</Link>
<span className="text-white">|</span>
<Link href="/comments" className="text-white">
comments
</Link>
<span className="text-white">|</span>
<Link href="/ask" className="text-white">
ask
</Link>
<span className="text-white">|</span>
<Link href="/show" className="text-white">
show
</Link>
<span className="text-white">|</span>
<Link href="/jobs" className="text-white">
jobs
</Link>
<span className="text-white">|</span>
<Link href="/submit" className="text-white">
submit
</Link>
</nav>
</div>
<div className="flex items-center space-x-4">
<input
type="text"
placeholder="Search"
className="py-1 px-2 border rounded"
/>
<Link href="/login" className="text-white">
login
</Link>
</div>
</div>
</div>
);
};
```
I had the highest hopes for this one. I was hoping for an identical clone. Initially, I was disappointed with the result. The colors in the header are off, from the logo to the text color. And it still insisted on adding a search bar. However, on second thought, considering this is going off of a screenshot it is pretty impressive to have generated so much detail.
---
##Prompt 5: Detailed Description for More Accurate Results
Based on the example provided by the docs and chat gpt, I decided to implement the following approach, which is more along the lines of that of the video but with a little more detail:
_"I need to create the header component for a Hacker News clone using Next.js, TypeScript, and Tailwind CSS. I will only be creating the UI._
_Visual Design:_
_- small ycombinator "y" logo - white border, with white "Y"_
_- title "Hacker News", bold black, on left side of header_
_- links: to right of title - new, past, comments, ask, show, jobs, submit_
_- orange background_
_- each link separated by a_ _|_
_- 'login' link, right side of header "_
**_Result:_**
```TS
const Header: React.FC = () => {
return (
<header className="bg-gray-200 p-2 flex items-center">
<div className="flex items-center">
<img src="/y18.gif" alt="Y Combinator Logo" className="mr-2" />
<span className="font-bold text-black">Hacker News</span>
</div>
<nav className="ml-4 flex space-x-2">
<Link href="/">new</Link>
<span>|</span>
<Link href="/past">past</Link>
<span>|</span>
<Link href="/comments">comments</Link>
<span>|</span>
<Link href="/ask">ask</Link>
<span>|</span>
<Link href="/show">show</Link>
<span>|</span>
<Link href="/jobs">jobs</Link>
<span>|</span>
<Link href="/submit">submit</Link>
</nav>
<div className="ml-auto flex items-center space-x-2">
<input
type="text"
className="border rounded p-1"
placeholder="Search"
/>
<Link href="/login">login</Link>
</div>
</header>
);
};
```
Pretty accurate. With more detail in the initial prompt, it likely could have ironed out the styling for the logo. Minimal tweaking in tailwinds will fix the rest. More detail is clearly the way to go.
---
##Reflection
I was surprised with how little information Chat GPT could go off of to generate a UI component of a given website. It was interesting to see the subtle variations in different prompt approaches. Clearly the best way to go is with more detail and leaving as little as possible left for the AI to have to interpret. Having clear delimiters and segments in the prompt not only makes it easier for the AI but would make it easier for other developers to read and use.
I can see that leveraging AI as a collaborator can significantly expedite the process compared to writing components by hand, while giving the developer more time to focus on the overall architecture and implementation of a project.
So after a little prompt experimentation I've got the foundations of a Hacker News header and a few code edits to make.
A few questions to consider going forward:
- Did Chat GPT's accuracy have anything to do with Hacker News being a widely used site for clone projects?
- Would a similar quality of results be generated with a more obscure site?
- Could another AI be used effectively to make code edits?
| spencertower | |
1,656,495 | EC2 Snapshot Management: How to get AWS EC2 Snapshot Information with Python | Introduction Amazon Elastic Compute Cloud (EC2) snapshots are integral to data backup and... | 0 | 2024-06-20T02:23:14 | https://dev.to/aws-builders/ec2-snapshot-management-how-to-get-aws-ec2-snapshot-information-with-python-753 | aws, python | ## Introduction
Amazon Elastic Compute Cloud (EC2) snapshots are integral to data backup and disaster recovery strategies within AWS. They provide point-in-time copies of your EC2 instance volumes, allowing you to restore data quickly and reliably in the event of failures, data loss, or system corruption. As organizations scale their cloud infrastructure, managing these snapshots becomes increasingly complex and time-consuming. Automation is the key to simplifying this process, ensuring data integrity, and optimizing operational efficiency.
In this blog post, we'll walk through a Python script that automates the extraction of snapshot information, including associated instance details. This script exports the gathered data to a CSV file for easy analysis and documentation. By leveraging this automated approach, you can streamline your workflow, maintain a robust backup strategy, and gain valuable insights into your AWS environment.
## Prerequisites
Before diving into the script, ensure you have the following prerequisites:
1. **AWS Account**: You need an active AWS account with EC2 instances and associated snapshots.
2. **AWS CLI and Boto3**: The AWS Command Line Interface (CLI) and Boto3 (the AWS SDK for Python) should be installed and configured on your machine.
3. **Python Environment**: Make sure you have Python installed on your local machine.
4. **IAM Permissions**: The IAM user or role you use must have the necessary permissions to describe EC2 instances and snapshots. Typically, `AmazonEC2ReadOnlyAccess` is sufficient.
### Setting Up AWS CLI and Boto3
First, install the AWS CLI and Boto3. Open your terminal and run:
```sh
pip install awscli boto3
```
Next, configure the AWS CLI with your credentials:
```sh
aws configure
```
You'll be prompted to enter your AWS Access Key ID, Secret Access Key, default region, and output format. This configuration is essential for Boto3 to interact with your AWS environment.
## Automating Snapshot Information Extraction
To automate the extraction of EC2 snapshot information, we need to perform the following steps:
1. Retrieve the names of EC2 instances.
2. Extract EC2 instance IDs from snapshot descriptions.
3. Gather snapshot information and export it to a CSV file.
### 1. Retrieving Instance Names
Each EC2 instance can have multiple tags, one of which is typically the `Name` tag. This tag is crucial for identifying instances more easily.
```python
import boto3
def get_instance_name(ec2, instance_id):
response = ec2.describe_instances(InstanceIds=[instance_id])
for reservation in response['Reservations']:
for instance in reservation['Instances']:
for tag in instance.get('Tags', []):
if tag['Key'] == 'Name':
return tag['Value']
return 'N/A'
```
The `get_instance_name` function queries AWS to describe the specified instance by its ID and iterates through the tags to find the `Name` tag. If the `Name` tag is not present, it returns 'N/A'.
### 2. Extracting Instance IDs from Snapshot Descriptions
Snapshots in AWS often contain the instance ID in their descriptions. We can use a regular expression to extract these IDs.
```python
import re
def extract_instance_id(description):
match = re.search(r'i-[a-f0-9]+', description)
if match:
return match.group(0)
return 'N/A'
```
The `extract_instance_id` function uses a regular expression to search for instance IDs (which match the pattern `i-[a-f0-9]+`) within the snapshot description. If a match is found, it returns the instance ID; otherwise, it returns 'N/A'.
### 3. Exporting Snapshot Information to CSV
Combining the previous functions, we can now gather the snapshot information and export it to a CSV file.
```python
import csv
import boto3
def export_snapshots_info_to_csv():
ec2 = boto3.client('ec2') # Connect to EC2 service
snapshots = ec2.describe_snapshots(OwnerIds=['self'])['Snapshots']
with open('ec2_snapshots.csv', mode='w', newline='') as csv_file:
fieldnames = ['Instance Name', 'Snapshot ID', 'Volume Size (GiB)', 'Snapshot Date Started']
writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
writer.writeheader()
for snapshot in snapshots:
instance_id = extract_instance_id(snapshot['Description'])
instance_name = get_instance_name(ec2, instance_id)
snapshot_id = snapshot['SnapshotId']
volume_size = snapshot['VolumeSize']
snapshot_date = snapshot['StartTime'].strftime("%Y-%m-%d %H:%M:%S")
writer.writerow({
'Instance Name': instance_name,
'Snapshot ID': snapshot_id,
'Volume Size (GiB)': volume_size,
'Snapshot Date Started': snapshot_date
})
print("Snapshot information has been written to ec2_snapshots.csv.")
```
The `export_snapshots_info_to_csv` function performs the following steps:
1. **Connect to the EC2 Service**: Initializes a connection to the EC2 service using Boto3.
2. **Retrieve Snapshots**: Fetches a list of snapshots owned by the account.
3. **Open CSV File**: Opens a CSV file for writing.
4. **Iterate Through Snapshots**: For each snapshot, it extracts the instance ID, retrieves the instance name, and collects other snapshot details.
5. **Write to CSV**: Writes the gathered information to the CSV file.
### Running the Script
To run the script, save it to a file (e.g., `ec2_snapshot_info.py`) and execute it using Python:
```sh
python ec2_snapshot_info.py
```
This command will generate a CSV file (`ec2_snapshots.csv`) in the same directory, containing detailed information about your EC2 snapshots.
## Detailed Explanation of Script Components
### AWS EC2 Client Initialization
The `boto3.client('ec2')` call initializes a client to interact with the EC2 service. This client will be used to make API calls to AWS.
```python
ec2 = boto3.client('ec2')
```
### Describing Snapshots
The `describe_snapshots` method fetches details about the snapshots. We specify `OwnerIds=['self']` to retrieve snapshots owned by the account.
```python
snapshots = ec2.describe_snapshots(OwnerIds=['self'])['Snapshots']
```
### Writing to CSV
The CSV module in Python simplifies writing tabular data to files. We use `csv.DictWriter` to write rows of dictionaries to the CSV file. Each dictionary represents a row in the CSV.
```python
with open('ec2_snapshots.csv', mode='w', newline='') as csv_file:
fieldnames = ['Instance Name', 'Snapshot ID', 'Volume Size (GiB)', 'Snapshot Date Started']
writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
writer.writeheader()
for snapshot in snapshots:
instance_id = extract_instance_id(snapshot['Description'])
instance_name = get_instance_name(ec2, instance_id)
snapshot_id = snapshot['SnapshotId']
volume_size = snapshot['VolumeSize']
snapshot_date = snapshot['StartTime'].strftime("%Y-%m-%d %H:%M:%S")
writer.writerow({
'Instance Name': instance_name,
'Snapshot ID': snapshot_id,
'Volume Size (GiB)': volume_size,
'Snapshot Date Started': snapshot_date
})
```
### Handling Missing Information
The script gracefully handles missing information. If an instance ID or name is not found, it returns 'N/A'. This ensures that the script does not break and provides a complete CSV output.
### Time Formatting
The `strftime` method formats the snapshot start time into a human-readable string. This makes it easier to interpret the snapshot creation dates in the CSV file.
```python
snapshot_date = snapshot['StartTime'].strftime("%Y-%m-%d %H:%M:%S")
```
## Conclusion
Automating EC2 snapshot management with Python significantly enhances your AWS infrastructure management. This script provides a reliable, repeatable process for documenting and analyzing your snapshots, ensuring your backup strategy is robust and well-documented.
Incorporate this script into your regular AWS maintenance routines to gain better visibility into your snapshot strategy, optimize your backup processes, and free up time for more critical tasks. By leveraging automation, you can ensure your data is secure and readily available, enhancing the overall efficiency and reliability of your AWS environment.
Feel free to customize and expand this script to suit your specific needs, such as adding more snapshot details or integrating with other AWS services. Automation is a powerful tool, and this script is just the beginning of what you can achieve with AWS and Python. | cloudsege |
1,894,224 | Essential HTTP Status Codes Every Web Developer Should Know | Understanding HTTP status codes is crucial for web developers. These codes provide insight into the... | 0 | 2024-06-20T02:21:39 | https://dev.to/vyan/essential-http-status-codes-every-web-developer-should-know-2gnd | webdev, beginners, http, react | Understanding HTTP status codes is crucial for web developers. These codes provide insight into the status of a request made to a server, helping you diagnose and troubleshoot issues effectively. Here’s a comprehensive guide to 18 essential HTTP status codes that you need to know.
## 1. 200 OK
**Request Succeeded**
The 200 status code indicates that the request has succeeded. The server has successfully processed the request, and the result is returned in the response.
## 2. 201 Created
**Resource Created**
The 201 status code signifies that the request has been fulfilled and a new resource has been created as a result. This is typically the response after a POST request.
## 3. 202 Accepted
**Accepted Request**
The 202 status code means that the request has been accepted for processing, but the processing has not been completed. This is often used for asynchronous operations.
## 4. 204 No Content
**No Content**
The 204 status code indicates that the server has successfully processed the request, but there is no content to send in the response. This is common for DELETE requests.
## 5. 301 Moved Permanently
**Resource Moved Permanently**
The 301 status code tells the client that the resource requested has been permanently moved to a new URL. The client should use the new URL for future requests.
## 6. 302 Found
**Temporarily Moved**
The 302 status code indicates that the resource requested is temporarily located at a different URL. The client should continue to use the original URL for future requests.
## 7. 304 Not Modified
**Not Modified**
The 304 status code means that the resource has not been modified since the last request. The client can use the cached version of the resource.
## 8. 400 Bad Request
**Bad Request Error**
The 400 status code indicates that the server could not understand the request due to invalid syntax. This is a client-side error.
## 9. 401 Unauthorized
**Needs Authentication**
The 401 status code means that the request requires user authentication. The client must authenticate itself to get the requested response.
## 10. 403 Forbidden
**Access Forbidden**
The 403 status code indicates that the server understands the request but refuses to authorize it. This is often due to insufficient permissions.
## 11. 404 Not Found
**Resource Not Found**
The 404 status code means that the server cannot find the requested resource. This is a common error when the URL is incorrect or the resource does not exist.
## 12. 405 Method Not Allowed
**Method Not Allowed**
The 405 status code indicates that the request method is not supported for the requested resource. For example, using a POST method on a read-only resource.
## 13. 408 Request Timeout
**Request Timed Out**
The 408 status code means that the server timed out waiting for the request. This can happen if the request takes too long to complete.
## 14. 500 Internal Server Error
**Server Error**
The 500 status code indicates that the server encountered an unexpected condition that prevented it from fulfilling the request. This is a generic server error message.
## 15. 501 Not Implemented
**Not Implemented**
The 501 status code means that the server does not support the functionality required to fulfill the request. This indicates that the server cannot recognize the request method.
## 16. 502 Bad Gateway
**Bad Gateway Error**
The 502 status code indicates that the server, while acting as a gateway or proxy, received an invalid response from the upstream server.
## 17. 503 Service Unavailable
**Service Unavailable**
The 503 status code means that the server is currently unable to handle the request due to temporary overloading or maintenance of the server.
## 18. 504 Gateway Timeout
**Gateway Timeout**
The 504 status code indicates that the server, while acting as a gateway or proxy, did not receive a timely response from the upstream server. This typically happens when the server is down or not responding.
## Conclusion
HTTP status codes are vital for understanding the outcome of a request and diagnosing issues in web development. Familiarizing yourself with these codes will help you quickly identify and resolve problems, ensuring a smoother development process and a better user experience.
By mastering these essential HTTP status codes, you can enhance your ability to debug issues, optimize your server-client interactions, and improve the overall functionality of your web applications. | vyan |
1,894,223 | iceriveroutlet | We are a trusted partner of IceRiver. We offer customers a wide range of IceRiver miners to purchase.... | 0 | 2024-06-20T02:21:27 | https://dev.to/kaspa_miningsitessitio/iceriveroutlet-4m46 | We are a trusted partner of IceRiver. We offer customers a wide range of IceRiver miners to purchase. Order your KASPA ASIC MINING today!
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IBELINK BM-KS Max Miner – 10.5 Th/s
The iBeLink BM-KS Max is an advanced cryptocurrency miner specifically designed to operate with the KHeavyHash algorithm, reaching a maximum hashrate of 10.5Th/s with a power consumption of only 3400W. This equipment, launched in February 2024, is finely optimized to offer efficient and long-lasting performance.
Main Features:
Algorithm: KHeavyHash
Hashrate: Up to 10.5Th/s
Power Consumption: 3400W
Cooling System: Four high-speed fans for fast heat dissipation
Noise Level: 75 dB
Operating Temperature: 0 – 45 °C
The iBeLink BM-KS Max is equipped with an air cooling system that ensures efficient operation. Due to its 75 dB noise level, it is advisable to place it in a well-ventilated area to optimize heat expulsion and ensure a comfortable mining experience.
Buy the iBeLink BM-KS Max
To purchase the iBeLink BM-KS Max, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance. https://iceriveroutlet.com/product/ibelink-bm-ks-max/
Bitmain Antminer KS5 Kaspa Miner – 20 Th/s
The Antminer KS5 Pro is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 20Th/s with a power consumption of only 3150W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS5 Pro
Algorithm: KHeavyHash
Hashrate: Up to 20Th/s
Power Consumption: 3150W
Cooling System: Four high-speed fans for fast heat dissipation
Release Date: March 2024
Product description
The Antminer KS5 Pro is an advanced Kaspa miner from the renowned mining hardware brand Bitmain. Designed specifically for the KHeavyHash mining algorithm, the Antminer KS5 Pro allows miners to mine Kaspa efficiently, even in the face of increasing mining difficulty. Equipped with four high-speed fans, the KS5 Pro prevents overheating and promotes instant heat dissipation.
Recently launched in March 2024, the Antminer KS5 Pro is a premium miner from Kaspa that offers a maximum hashrate of 20Th/s and power consumption of only 3150W. With a compact weight and industry-standard size, the Bitmain Antminer KS5 Pro allows miners to operate efficiently and effectively.
Buy the Bitmain Antminer KS5 Pro
To purchase the Bitmain Antminer KS5 Pro, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance. https://iceriveroutlet.com/product/antminer-ks5-20th/
Bitmain Antminer KS3 Kaspa Miner – 9.4 Th/s
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 9.4Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 9.4Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures and prevent overheating
Product description
The Bitmain Antminer KS3 is a reliable and efficient Kaspa miner, designed to offer a maximum hash rate of 9.4Th/s and power consumption of 3500W. With an energy efficiency of 0.37j/Gh, this miner is equipped with an advanced cooling system that uses high-quality fans to prevent overheating and maintain stable temperatures during operation.
Equipped with an advanced semiconductor chip and hashboard configuration, the Bitmain KS3 provides optimal performance for Kaspa mining. Its easy-to-use interface and compact design make it ideal for both home mining and professional applications. Miners can check the hash speed and other parameters in real time through the control panel.
Buy the Bitmain Antminer KS3
To purchase the Bitmain Antminer KS3, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance.
https://iceriveroutlet.com/product/antminer-ks3-9-4th/
Iceriver KS3M 6000Gh/s KAS Miner – 6 Th/s
The Iceriver KS3M is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 6000Gh/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS3M
Algorithm: KHeavyHash
Hashrate: Up to 6000Gh/s (equivalent to 6 Th/s)
Power Consumption: 3400W
Ideal Voltage: 170-300V AC
Cooling System: Efficient air cooling system for instant heat dissipation
Product description
The Iceriver KS3M is a premium Kaspa miner optimized for the KHeavyHash algorithm, offering a maximum hash speed of 6000Gh/s. With a power consumption of 3400W, it allows miners to mine Kaspa coins efficiently, adapting to fluctuations in mining difficulty.
Equipped with an efficient air cooling system, the KS3M instantly dissipates heat generated during cryptocurrency mining, ensuring optimal long-term performance. It is recommended to maintain an atmospheric temperature between 0 and 35 °C and a humidity of 10 to 90% to ensure ideal operating conditions.
Buy the Iceriver KS3M
To purchase the Iceriver KS3M and benefit from its efficiency and high performance in cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks3m-6th-s/
Iceriver KS2 2000Gh/s KAS Miner – 2 Th/s
The Iceriver KS2 is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, achieving a maximum hash rate of 2000 Gh/s with a power consumption of only 1200 W.
Main Features:
Manufacturer: Iceriver
Model: KS2
Algorithm: KHeavyHash
Hashrate: Up to 2000 Gh/s (equivalent to 2 Th/s)
Power Consumption: 1200 W
Dimensions: 370 x 195 x 290mm
Weight: 12500g
Ideal Conditions: Temperature of 0 – 35 °C and humidity of 10 – 90%
Product description
The Iceriver KS2 is a robust Kaspa mining machine with compact weight and dimensions that make it easy to install in various environments. Designed to offer optimal efficiency, this miner provides a maximum hash rate of 2000 Gh/s, allowing miners to solve cryptographic puzzles and mine new blocks efficiently.
Recently released in August 2023, the Iceriver KS2 is an advanced version of its predecessor, the KS1, significantly improving its hashing capacity. With a power consumption of just 1200W, it is an efficient option for those looking to mine Kaspa without compromising on performance.
Buy the Iceriver KS2
To purchase the Iceriver KS2 and take advantage of its excellent performance in Kaspa cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks2-2th-s/
Iceriver KS5L Kaspa Miner – 12 Th/s
The Iceriver KS5L is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 12 Th/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS5L
Algorithm: KHeavyHash
Hashrate: Up to 12 Th/s
Power Consumption: 3400W
Release Date: April 2024
Product description
The Iceriver KS5L is a dynamic miner from Kaspa, recently launched in April 2024, designed to offer an excellent hash rate of 12 Th/s. This capability allows miners to mine Kaspa coins successfully, even under conditions of high network difficulty.
Manufactured by a renowned brand, the Iceriver KS5L is finely optimized for the KHeavyHash algorithm and features an efficient air cooling system to dissipate the heat generated during cryptocurrency mining. It is recommended to place the KS5L in a well-ventilated location to ensure effective cooling and optimal long-term performance.
Buy the Iceriver KS5L
To purchase the Iceriver KS5L and take advantage of its excellent performance in Kaspa cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks5l-12th/
Bitmain Antminer KS3 8 TH 3500W
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 8 Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 8 Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures
Product description
The Bitmain Antminer KS3 is a reliable miner from Kaspa designed to offer a maximum hash rate of 8 Th/s with an efficient power consumption of 3500W and an energy efficiency of 0.37j/Gh. Equipped with an advanced cooling system using high-quality fans, the KS3 prevents overheating and ensures optimal conditions for continuous mining.
With an advanced semiconductor chip and optimized hashboard configuration, the Bitmain KS3 is an ideal choice for both home and professional miners. Its easy-to-use interface and compact design make it easy to manage and monitor real-time hash speed and other crucial mining parameters.
Buy the Bitmain Antminer KS3
To purchase the Bitmain Antminer KS3 and benefit from its efficiency and performance in mining Kaspa cryptocurrencies, visit this link.
https://iceriveroutlet.com/product/antminer-ks3-8th-kaspa/
Iceriver KS0 Ultra 400Gh/s Kaspa Miner
The Iceriver KS0 Ultra is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 400 Gh/s with a power consumption of only 100W.
Main Features:
Manufacturer: Iceriver
Model: KS0 Ultra
Algorithm: KHeavyHash
Hashrate: Up to 400 Gh/s
Power Consumption: 100W
Energy Efficiency: 250j/Th
Noise Level: 10 dB (low)
Product description
The Iceriver KS0 Ultra is a stable miner from Kaspa known for its efficiency and compact design. Optimized for the KHeavyHash algorithm, it offers a maximum hash rate of 400 Gh/s with an extremely low consumption of 100W. Its energy efficiency of 250j/Th makes it ideal for mining in a profitable and sustainable way.
With a compact weight of 2800g and dimensions of 200 x 194 x 74mm, the KS0 Ultra allows miners to operate comfortably from any location. Recommended for input voltages of 100-240 V and an ambient temperature of 0 – 35 °C, it ensures optimal operating conditions in various environments.
Buy the Iceriver KS0 Ultra
To purchase the Iceriver KS0 Ultra and take advantage of its energy efficiency and performance in Kaspa cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks0-ultra/
Iceriver KS0 Pro 200Gh/s KAS Miner
The Iceriver KS0 Pro is manufactured by Iceriver and is optimized for mining with the KHeavyHash algorithm, reaching a maximum hash speed of 200 Gh/s while consuming only 100W of power.
Main Features:
Manufacturer: Iceriver
Model: KS0 Pro
Algorithm: KHeavyHash
Hash Speed: Up to 200 Gh/s
Power Consumption: 100W
Noise Level: 10 dB (low)
Weight: 2500g
Ideal Temperature: 0 to 35°C
Product description:
The Iceriver KS0 Pro is an advanced Kaspa miner designed specifically for the KHeavyHash algorithm. Manufactured by renowned mining hardware manufacturer Iceriver, this miner offers advanced capabilities in a compact form factor that weighs 2500g and operates with a noise level of just 10 dB, ensuring a quiet mining environment.
Launched in November 2023, the KS0 Pro allows miners to successfully mine new Kaspa coins despite mining difficulty, thanks to its maximum hash speed of 200 Gh/s. Furthermore, with a power consumption of only 100W, the KS0 Pro not only reduces electrical costs but also improves energy efficiency, thereby increasing mining profitability.
Buy the Iceriver KS0 Pro:
To purchase the Iceriver KS0 Pro and take advantage of its efficient Kaspa mining capabilities, visit this link.
https://iceriveroutlet.com/product/iceriver-ks0-pro-200gh/
Iceriver KS0 Pro 200Gh/s KAS Miner
The Iceriver KS0 Pro is manufactured by Iceriver and is optimized for mining with the KHeavyHash algorithm, reaching a maximum hash speed of 200 Gh/s while consuming only 100W of power.
Main Features:
Manufacturer: Iceriver
Model: KS0 Pro
Algorithm: KHeavyHash
Hash Speed: Up to 200 Gh/s
Power Consumption: 100W
Noise Level: 10 dB (low)
Weight: 2500g
Ideal Temperature: 0 to 35°C
Product description:
The Iceriver KS0 Pro is an advanced Kaspa miner designed specifically for the KHeavyHash algorithm. Manufactured by renowned mining hardware manufacturer Iceriver, this miner offers advanced capabilities in a compact form factor that weighs 2500g and operates with a noise level of just 10 dB, ensuring a quiet mining environment.
Launched in November 2023, the KS0 Pro allows miners to successfully mine new Kaspa coins despite mining difficulty, thanks to its maximum hash speed of 200 Gh/s. Furthermore, with a power consumption of only 100W, the KS0 Pro not only reduces electrical costs but also improves energy efficiency, thereby increasing mining profitability.
Buy the Iceriver KS0 Pro:
To purchase the Iceriver KS0 Pro and take advantage of its efficient Kaspa mining capabilities, visit this link.
https://iceriveroutlet.com/product/iceriver-ks0-pro-200gh/
IBELINK BM-KS Max Miner – 10.5 Th/s
The iBeLink BM-KS Max is an advanced cryptocurrency miner specifically designed to operate with the KHeavyHash algorithm, reaching a maximum hashrate of 10.5Th/s with a power consumption of only 3400W. This equipment, launched in February 2024, is finely optimized to offer efficient and long-lasting performance.
Main Features:
Algorithm: KHeavyHash
Hashrate: Up to 10.5Th/s
Power Consumption: 3400W
Cooling System: Four high-speed fans for fast heat dissipation
Noise Level: 75 dB
Operating Temperature: 0 – 45 °C
The iBeLink BM-KS Max is equipped with an air cooling system that ensures efficient operation. Due to its 75 dB noise level, it is advisable to place it in a well-ventilated area to optimize heat expulsion and ensure a comfortable mining experience.
Buy the iBeLink BM-KS Max
To purchase the iBeLink BM-KS Max, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance. https://iceriveroutlet.com/product/ibelink-bm-ks-max/
Bitmain Antminer KS5 Kaspa Miner – 20 Th/s
The Antminer KS5 Pro is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 20Th/s with a power consumption of only 3150W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS5 Pro
Algorithm: KHeavyHash
Hashrate: Up to 20Th/s
Power Consumption: 3150W
Cooling System: Four high-speed fans for fast heat dissipation
Release Date: March 2024
Product description
The Antminer KS5 Pro is an advanced Kaspa miner from the renowned mining hardware brand Bitmain. Designed specifically for the KHeavyHash mining algorithm, the Antminer KS5 Pro allows miners to mine Kaspa efficiently, even in the face of increasing mining difficulty. Equipped with four high-speed fans, the KS5 Pro prevents overheating and promotes instant heat dissipation.
Recently launched in March 2024, the Antminer KS5 Pro is a premium miner from Kaspa that offers a maximum hashrate of 20Th/s and power consumption of only 3150W. With a compact weight and industry-standard size, the Bitmain Antminer KS5 Pro allows miners to operate efficiently and effectively.
Buy the Bitmain Antminer KS5 Pro
To purchase the Bitmain Antminer KS5 Pro, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance. https://iceriveroutlet.com/product/antminer-ks5-20th/
Bitmain Antminer KS3 Kaspa Miner – 9.4 Th/s
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 9.4Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 9.4Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures and prevent overheating
Product description
The Bitmain Antminer KS3 is a reliable and efficient Kaspa miner, designed to offer a maximum hash rate of 9.4Th/s and power consumption of 3500W. With an energy efficiency of 0.37j/Gh, this miner is equipped with an advanced cooling system that uses high-quality fans to prevent overheating and maintain stable temperatures during operation.
Equipped with an advanced semiconductor chip and hashboard configuration, the Bitmain KS3 provides optimal performance for Kaspa mining. Its easy-to-use interface and compact design make it ideal for both home mining and professional applications. Miners can check the hash speed and other parameters in real time through the control panel.
Buy the Bitmain Antminer KS3
To purchase the Bitmain Antminer KS3, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance.
https://iceriveroutlet.com/product/antminer-ks3-9-4th/
Iceriver KS3M 6000Gh/s KAS Miner – 6 Th/s
The Iceriver KS3M is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 6000Gh/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS3M
Algorithm: KHeavyHash
Hashrate: Up to 6000Gh/s (equivalent to 6 Th/s)
Power Consumption: 3400W
Ideal Voltage: 170-300V AC
Cooling System: Efficient air cooling system for instant heat dissipation
Product description
The Iceriver KS3M is a premium Kaspa miner optimized for the KHeavyHash algorithm, offering a maximum hash speed of 6000Gh/s. With a power consumption of 3400W, it allows miners to mine Kaspa coins efficiently, adapting to fluctuations in mining difficulty.
Equipped with an efficient air cooling system, the KS3M instantly dissipates the heat generated during cryptocurrency mining, ensuring optimal long-term performance. It is recommended to maintain an atmospheric temperature between 0 and 35 °C and a humidity of 10 to 90% to ensure ideal operating conditions.
Buy the Iceriver KS3M
To purchase the Iceriver KS3M and benefit from its efficiency and high performance in cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks3m-6th-s/
Iceriver KS2 2000Gh/s KAS Miner – 2 Th/s
The Iceriver KS2 is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, achieving a maximum hash rate of 2000 Gh/s with a power consumption of only 1200 W.
Main Features:
Manufacturer: Iceriver
Model: KS2
Algorithm: KHeavyHash
Hashrate: Up to 2000 Gh/s (equivalent to 2 Th/s)
Power Consumption: 1200 W
Dimensions: 370 x 195 x 290mm
Weight: 12500g
Ideal Conditions: Temperature of 0 – 35 °C and humidity of 10 – 90%
Product description
The Iceriver KS2 is a robust Kaspa mining machine with compact weight and dimensions that make it easy to install in various environments. Designed to offer optimal efficiency, this miner provides a maximum hash rate of 2000 Gh/s, allowing miners to solve cryptographic puzzles and mine new blocks efficiently.
Recently released in August 2023, the Iceriver KS2 is an advanced version of its predecessor, the KS1, significantly improving its hashing capacity. With a power consumption of just 1200W, it is an efficient option for those looking to mine Kaspa without compromising performance.
Buy the Iceriver KS2
To purchase the Iceriver KS2 and take advantage of its excellent performance in Kaspa cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks2-2th-s/
Iceriver KS5L Kaspa Miner – 12 Th/s
The Iceriver KS5L is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 12 Th/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS5L
Algorithm: KHeavyHash
Hashrate: Up to 12 Th/s
Power Consumption: 3400W
Release Date: April 2024
Product description
The Iceriver KS5L is a dynamic miner from Kaspa, recently launched in April 2024, designed to offer an excellent hash rate of 12 Th/s. This capability allows miners to mine Kaspa coins successfully, even under conditions of high network difficulty.
Manufactured by a renowned brand, the Iceriver KS5L is finely optimized for the KHeavyHash algorithm and features an efficient air cooling system to dissipate the heat generated during cryptocurrency mining. It is recommended to place the KS5L in a well-ventilated location to ensure effective cooling and optimal long-term performance.
Buy the Iceriver KS5L
To purchase the Iceriver KS5L and take advantage of its excellent performance in Kaspa cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks5l-12th/
Bitmain Antminer KS3 8 TH 3500W
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 8 Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 8 Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures
Product description
The Bitmain Antminer KS3 is a reliable miner from Kaspa designed to offer a maximum hash rate of 8 Th/s with an efficient power consumption of 3500W and an energy efficiency of 0.37j/Gh. Equipped with an advanced cooling system using high-quality fans, the KS3 prevents overheating and ensures optimal conditions for continuous mining.
With an advanced semiconductor chip and optimized hashboard configuration, the Bitmain KS3 is an ideal choice for both home and professional miners. Its easy-to-use interface and compact design make it easy to manage and monitor real-time hash speed and other crucial mining parameters.
Buy the Bitmain Antminer KS3
To purchase the Bitmain Antminer KS3 and benefit from its efficiency and performance in mining Kaspa cryptocurrencies, visit this link.
https://iceriveroutlet.com/product/antminer-ks3-8th-kaspa/
Iceriver KS0 Ultra 400Gh/s Kaspa Miner
The Iceriver KS0 Ultra is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 400 Gh/s with a power consumption of only 100W.
Main Features:
Manufacturer: Iceriver
Model: KS0 Ultra
Algorithm: KHeavyHash
Hashrate: Up to 400 Gh/s
Power Consumption: 100W
Energy Efficiency: 250j/Th
Noise Level: 10 dB (low)
Product description
The Iceriver KS0 Ultra is a stable miner from Kaspa known for its efficiency and compact design. Optimized for the KHeavyHash algorithm, it offers a maximum hash rate of 400 Gh/s with an extremely low consumption of 100W. Its energy efficiency of 250j/Th makes it ideal for mining in a profitable and sustainable way.
With a compact weight of 2800g and dimensions of 200 x 194 x 74mm, the KS0 Ultra allows miners to operate comfortably from any location. Recommended for input voltages of 100-240 V and an ambient temperature of 0 – 35 °C, it ensures optimal operating conditions in various environments.
Buy the Iceriver KS0 Ultra
To purchase the Iceriver KS0 Ultra and take advantage of its energy efficiency and performance in Kaspa cryptocurrency mining, visit this link.
https://iceriveroutlet.com/product/iceriver-ks0-ultra/
Bitmain Antminer KS5 Kaspa Miner – 20 Th/s
The Antminer KS5 Pro is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 20Th/s with a power consumption of only 3150W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS5 Pro
Algorithm: KHeavyHash
Hashrate: Up to 20Th/s
Power Consumption: 3150W
Cooling System: Four high-speed fans for fast heat dissipation
Release Date: March 2024
Product description
The Antminer KS5 Pro is an advanced Kaspa miner from the renowned mining hardware brand Bitmain. Designed specifically for the KHeavyHash mining algorithm, the Antminer KS5 Pro allows miners to mine Kaspa efficiently, even in the face of increasing mining difficulty. Equipped with four high-speed fans, the KS5 Pro prevents overheating and promotes instant heat dissipation.
Recently launched in March 2024, the Antminer KS5 Pro is a premium miner from Kaspa that offers a maximum hashrate of 20Th/s and power consumption of only 3150W. With a compact weight and industry-standard size, the Bitmain Antminer KS5 Pro allows miners to operate efficiently and effectively.
Buy the Bitmain Antminer KS5 Pro
To purchase the Bitmain Antminer KS5 Pro, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance. https://iceriveroutlet.com/product/antminer-ks5-20th/
iceriveroutlet.com, based in Hong Kong, is one of the largest distributors of miners in offline sales. We are a team of professionals with experience in Blockchain Management, Offline Sales, Electronic Commerce and Cryptocurrency Mining kaspa asic miner We are partnered with ensun to provide our customers with the latest innovations in cryptocurrency miners
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Bitmain Antminer KS3 Kaspa Miner – 9.4 Th/s
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 9.4Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 9.4Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures and prevent overheating
Product description
The Bitmain Antminer KS3 is a reliable and efficient Kaspa miner, designed to offer a maximum hash rate of 9.4Th/s and power consumption of 3500W. With an energy efficiency of 0.37j/Gh, this miner is equipped with an advanced cooling system that uses high-quality fans to prevent overheating and maintain stable temperatures during operation.
Equipped with an advanced semiconductor chip and hashboard configuration, the Bitmain KS3 provides optimal performance for Kaspa mining. Its easy-to-use interface and compact design make it ideal for both home mining and professional applications. Miners can check the hash speed and other parameters in real time through the control panel.
Buy the Bitmain Antminer KS3
To purchase the Bitmain Antminer KS3, visit this link and take advantage of all its advanced features to improve your cryptocurrency mining performance.
https://iceriveroutlet.com/product/antminer-ks3-9-4th/
iceriveroutlet.com, based in Hong Kong, is one of the largest distributors of miners in offline sales. We are a team of professionals with experience in Blockchain Management, Offline Sales, Electronic Commerce and Cryptocurrency Mining kaspa asic miner We are partnered with ensun to provide our customers with the latest innovations in cryptocurrency miners
Iceriver KS3M 6000Gh/s KAS Miner – 6 Th/s
The Iceriver KS3M is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 6000Gh/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS3M
Algorithm: KHeavyHash
Hashrate: Up to 6000Gh/s (equivalent to 6 Th/s)
Power Consumption: 3400W
Ideal Voltage: 170-300V AC
Cooling System: Efficient air cooling system for instant heat dissipation
Product description
The Iceriver KS3M is a premium Kaspa miner optimized for the KHeavyHash algorithm, offering a maximum hash speed of 6000Gh/s. With a power consumption of 3400W, it allows miners to mine Kaspa coins efficiently, adapting to fluctuations in mining difficulty.
Equipped with an efficient air cooling system, the KS3M instantly dissipates heat generated during cryptocurrency mining, ensuring optimal long-term performance. It is recommended to maintain an atmospheric temperature between 0 and 35 °C and a humidity of 10 to 90% to ensure ideal operating conditions.
Buy the Iceriver KS3M
To purchase the Iceriver KS3M and benefit from its efficiency and high performance in cryptocurrency mining, visit this link.
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Iceriver KS2 2000Gh/s KAS Miner – 2 Th/s
The Iceriver KS2 is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, achieving a maximum hash rate of 2000 Gh/s with a power consumption of only 1200 W.
Main Features:
Manufacturer: Iceriver
Model: KS2
Algorithm: KHeavyHash
Hashrate: Up to 2000 Gh/s (equivalent to 2 Th/s)
Power Consumption: 1200 W
Dimensions: 370 x 195 x 290mm
Weight: 12500g
Ideal Conditions: Temperature of 0 – 35 °C and humidity of 10 – 90%
Product description
The Iceriver KS2 is a robust Kaspa mining machine with compact weight and dimensions that make it easy to install in various environments. Designed to offer optimal efficiency, this miner provides a maximum hash rate of 2000 Gh/s, allowing miners to solve cryptographic puzzles and mine new blocks efficiently.
Recently released in August 2023, the Iceriver KS2 is an advanced version of its predecessor, the KS1, significantly improving its hashing capacity. With a power consumption of just 1200W, it is an efficient option for those looking to mine Kaspa without compromising on performance.
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Iceriver KS5L Kaspa Miner – 12 Th/s
El Iceriver KS5L es fabricado por Iceriver y está diseñado para minar con el algoritmo KHeavyHash, alcanzando un hashrate máximo de 12 Th/s con un consumo de energía de solo 3400W.
Características Principales:
Fabricante: Iceriver
Modelo: KS5L
Algoritmo: KHeavyHash
Hashrate: Hasta 12 Th/s
Consumo de Energía: 3400W
Fecha de Lanzamiento: Abril de 2024
Descripción del Producto
El Iceriver KS5L es un dinámico minero de Kaspa, recientemente lanzado en abril de 2024, diseñado para ofrecer una excelente tasa de hash de 12 Th/s. Esta capacidad permite a los mineros extraer monedas de Kaspa con éxito, incluso en condiciones de alta dificultad en la red.
Fabricado por una marca reconocida, el Iceriver KS5L está finamente optimizado para el algoritmo KHeavyHash y cuenta con un eficiente sistema de refrigeración por aire para disipar el calor generado durante la minería de criptomonedas. Se recomienda colocar el KS5L en un lugar bien ventilado para garantizar una refrigeración efectiva y un rendimiento óptimo a largo plazo.
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Iceriver KS5L Kaspa Miner – 12 Th/s
The Iceriver KS5L is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 12 Th/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS5L
Algorithm: KHeavyHash
Hashrate: Up to 12 Th/s
Power Consumption: 3400W
Release Date: April 2024
Product description
The Iceriver KS5L is a dynamic miner from Kaspa, recently launched in April 2024, designed to offer an excellent hash rate of 12 Th/s. This capability allows miners to mine Kaspa coins successfully, even under conditions of high network difficulty.
Manufactured by a renowned brand, the Iceriver KS5L is finely optimized for the KHeavyHash algorithm and features an efficient air cooling system to dissipate the heat generated during cryptocurrency mining. It is recommended to place the KS5L in a well-ventilated location to ensure effective cooling and optimal long-term performance.
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Bitmain Antminer KS3 8 TH 3500W
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 8 Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 8 Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures
Product description
The Bitmain Antminer KS3 is a reliable miner from Kaspa designed to offer a maximum hash rate of 8 Th/s with an efficient power consumption of 3500W and an energy efficiency of 0.37j/Gh. Equipped with an advanced cooling system using high-quality fans, the KS3 prevents overheating and ensures optimal conditions for continuous mining.
With an advanced semiconductor chip and optimized hashboard configuration, the Bitmain KS3 is an ideal choice for both home and professional miners. Its easy-to-use interface and compact design make it easy to manage and monitor real-time hash speed and other crucial mining parameters.
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Iceriver KS0 Ultra 400Gh/s Kaspa Miner
The Iceriver KS0 Ultra is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 400 Gh/s with a power consumption of only 100W.
Main Features:
Manufacturer: Iceriver
Model: KS0 Ultra
Algorithm: KHeavyHash
Hashrate: Up to 400 Gh/s
Power Consumption: 100W
Energy Efficiency: 250j/Th
Noise Level: 10 dB (low)
Product description
The Iceriver KS0 Ultra is a stable miner from Kaspa known for its efficiency and compact design. Optimized for the KHeavyHash algorithm, it offers a maximum hash rate of 400 Gh/s with an extremely low consumption of 100W. Its energy efficiency of 250j/Th makes it ideal for mining in a profitable and sustainable way.
With a compact weight of 2800g and dimensions of 200 x 194 x 74mm, the KS0 Ultra allows miners to operate comfortably from any location. Recommended for input voltages of 100-240 V and an ambient temperature of 0 – 35 °C, it ensures optimal operating conditions in various environments.
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Iceriver KS0 Pro 200Gh/s KAS Miner
The Iceriver KS0 Pro is manufactured by Iceriver and is optimized for mining with the KHeavyHash algorithm, reaching a maximum hash speed of 200 Gh/s while consuming only 100W of power.
Main Features:
Manufacturer: Iceriver
Model: KS0 Pro
Algorithm: KHeavyHash
Hash Speed: Up to 200 Gh/s
Power Consumption: 100W
Noise Level: 10 dB (low)
Weight: 2500g
Ideal Temperature: 0 to 35°C
Product description:
The Iceriver KS0 Pro is an advanced Kaspa miner designed specifically for the KHeavyHash algorithm. Manufactured by renowned mining hardware manufacturer Iceriver, this miner offers advanced capabilities in a compact form factor that weighs 2500g and operates with a noise level of just 10 dB, ensuring a quiet mining environment.
Launched in November 2023, the KS0 Pro allows miners to successfully mine new Kaspa coins despite mining difficulty, thanks to its maximum hash speed of 200 Gh/s. Furthermore, with a power consumption of only 100W, the KS0 Pro not only reduces electrical costs but also improves energy efficiency, thereby increasing mining profitability.
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Iceriver KS0 Pro 200Gh/s KAS Miner
The Iceriver KS0 Pro is manufactured by Iceriver and is optimized for mining with the KHeavyHash algorithm, reaching a maximum hash speed of 200 Gh/s while consuming only 100W of power.
Main Features:
Manufacturer: Iceriver
Model: KS0 Pro
Algorithm: KHeavyHash
Hash Speed: Up to 200 Gh/s
Power Consumption: 100W
Noise Level: 10 dB (low)
Weight: 2500g
Ideal Temperature: 0 to 35°C
Product description:
The Iceriver KS0 Pro is an advanced Kaspa miner designed specifically for the KHeavyHash algorithm. Manufactured by renowned mining hardware manufacturer Iceriver, this miner offers advanced capabilities in a compact form factor that weighs 2500g and operates with a noise level of just 10 dB, ensuring a quiet mining environment.
Launched in November 2023, the KS0 Pro allows miners to successfully mine new Kaspa coins despite mining difficulty, thanks to its maximum hash speed of 200 Gh/s. Furthermore, with a power consumption of only 100W, the KS0 Pro not only reduces electrical costs but also improves energy efficiency, thereby increasing mining profitability.
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IBELINK BM-KS Max Miner – 10.5 Th/s
The iBeLink BM-KS Max is an advanced cryptocurrency miner specifically designed to operate with the KHeavyHash algorithm, reaching a maximum hashrate of 10.5Th/s with a power consumption of only 3400W. This equipment, launched in February 2024, is finely optimized to offer efficient and long-lasting performance.
Main Features:
Algorithm: KHeavyHash
Hashrate: Up to 10.5Th/s
Power Consumption: 3400W
Cooling System: Four high-speed fans for fast heat dissipation
Noise Level: 75 dB
Operating Temperature: 0 – 45 °C
The iBeLink BM-KS Max is equipped with an air cooling system that ensures efficient operation. Due to its 75 dB noise level, it is advisable to place it in a well-ventilated area to optimize heat expulsion and ensure a comfortable mining experience.
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Bitmain Antminer KS5 Kaspa Miner – 20 Th/s
The Antminer KS5 Pro is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 20Th/s with a power consumption of only 3150W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS5 Pro
Algorithm: KHeavyHash
Hashrate: Up to 20Th/s
Power Consumption: 3150W
Cooling System: Four high-speed fans for fast heat dissipation
Release Date: March 2024
Product description
The Antminer KS5 Pro is an advanced Kaspa miner from the renowned mining hardware brand Bitmain. Designed specifically for the KHeavyHash mining algorithm, the Antminer KS5 Pro allows miners to mine Kaspa efficiently, even in the face of increasing mining difficulty. Equipped with four high-speed fans, the KS5 Pro prevents overheating and promotes instant heat dissipation.
Recently launched in March 2024, the Antminer KS5 Pro is a premium miner from Kaspa that offers a maximum hashrate of 20Th/s and power consumption of only 3150W. With a compact weight and industry-standard size, the Bitmain Antminer KS5 Pro allows miners to operate efficiently and effectively.
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Bitmain Antminer KS3 Kaspa Miner – 9.4 Th/s
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 9.4Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 9.4Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures and prevent overheating
Product description
The Bitmain Antminer KS3 is a reliable and efficient Kaspa miner, designed to offer a maximum hash rate of 9.4Th/s and power consumption of 3500W. With an energy efficiency of 0.37j/Gh, this miner is equipped with an advanced cooling system that uses high-quality fans to prevent overheating and maintain stable temperatures during operation.
Equipped with an advanced semiconductor chip and hashboard configuration, the Bitmain KS3 provides optimal performance for Kaspa mining. Its easy-to-use interface and compact design make it ideal for both home mining and professional applications. Miners can check the hash speed and other parameters in real time through the control panel.
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Iceriver KS3M 6000Gh/s KAS Miner – 6 Th/s
The Iceriver KS3M is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 6000Gh/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS3M
Algorithm: KHeavyHash
Hashrate: Up to 6000Gh/s (equivalent to 6 Th/s)
Power Consumption: 3400W
Ideal Voltage: 170-300V AC
Cooling System: Efficient air cooling system for instant heat dissipation
Product description
The Iceriver KS3M is a premium Kaspa miner optimized for the KHeavyHash algorithm, offering a maximum hash speed of 6000Gh/s. With a power consumption of 3400W, it allows miners to mine Kaspa coins efficiently, adapting to fluctuations in mining difficulty.
Equipped with an efficient air cooling system, the KS3M instantly dissipates the heat generated during cryptocurrency mining, ensuring optimal long-term performance. It is recommended to maintain an atmospheric temperature between 0 and 35 °C and a humidity of 10 to 90% to ensure ideal operating conditions.
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Iceriver KS2 2000Gh/s KAS Miner – 2 Th/s
The Iceriver KS2 is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, achieving a maximum hash rate of 2000 Gh/s with a power consumption of only 1200 W.
Main Features:
Manufacturer: Iceriver
Model: KS2
Algorithm: KHeavyHash
Hashrate: Up to 2000 Gh/s (equivalent to 2 Th/s)
Power Consumption: 1200 W
Dimensions: 370 x 195 x 290mm
Weight: 12500g
Ideal Conditions: Temperature of 0 – 35 °C and humidity of 10 – 90%
Product description
The Iceriver KS2 is a robust Kaspa mining machine with compact weight and dimensions that make it easy to install in various environments. Designed to offer optimal efficiency, this miner provides a maximum hash rate of 2000 Gh/s, allowing miners to solve cryptographic puzzles and mine new blocks efficiently.
Recently released in August 2023, the Iceriver KS2 is an advanced version of its predecessor, the KS1, significantly improving its hashing capacity. With a power consumption of just 1200W, it is an efficient option for those looking to mine Kaspa without compromising performance.
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Iceriver KS5L Kaspa Miner – 12 Th/s
The Iceriver KS5L is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 12 Th/s with a power consumption of only 3400W.
Main Features:
Manufacturer: Iceriver
Model: KS5L
Algorithm: KHeavyHash
Hashrate: Up to 12 Th/s
Power Consumption: 3400W
Release Date: April 2024
Product description
The Iceriver KS5L is a dynamic miner from Kaspa, recently launched in April 2024, designed to offer an excellent hash rate of 12 Th/s. This capability allows miners to mine Kaspa coins successfully, even under conditions of high network difficulty.
Manufactured by a renowned brand, the Iceriver KS5L is finely optimized for the KHeavyHash algorithm and features an efficient air cooling system to dissipate the heat generated during cryptocurrency mining. It is recommended to place the KS5L in a well-ventilated location to ensure effective cooling and optimal long-term performance.
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Bitmain Antminer KS3 8 TH 3500W
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 8 Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 8 Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures
Product description
The Bitmain Antminer KS3 is a reliable miner from Kaspa designed to offer a maximum hash rate of 8 Th/s with an efficient power consumption of 3500W and an energy efficiency of 0.37j/Gh. Equipped with an advanced cooling system using high-quality fans, the KS3 prevents overheating and ensures optimal conditions for continuous mining.
With an advanced semiconductor chip and optimized hashboard configuration, the Bitmain KS3 is an ideal choice for both home and professional miners. Its easy-to-use interface and compact design make it easy to manage and monitor real-time hash speed and other crucial mining parameters.
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Iceriver KS0 Ultra 400Gh/s Kaspa Miner
The Iceriver KS0 Ultra is manufactured by Iceriver and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 400 Gh/s with a power consumption of only 100W.
Main Features:
Manufacturer: Iceriver
Model: KS0 Ultra
Algorithm: KHeavyHash
Hashrate: Up to 400 Gh/s
Power Consumption: 100W
Energy Efficiency: 250j/Th
Noise Level: 10 dB (low)
Product description
The Iceriver KS0 Ultra is a stable miner from Kaspa known for its efficiency and compact design. Optimized for the KHeavyHash algorithm, it offers a maximum hash rate of 400 Gh/s with an extremely low consumption of 100W. Its energy efficiency of 250j/Th makes it ideal for mining in a profitable and sustainable way.
With a compact weight of 2800g and dimensions of 200 x 194 x 74mm, the KS0 Ultra allows miners to operate comfortably from any location. Recommended for input voltages of 100-240 V and an ambient temperature of 0 – 35 °C, it ensures optimal operating conditions in various environments.
Buy the Iceriver KS0 Ultra
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IceRiver KS3 – KS3L 8TH/S 3200W (KAS)
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KS3 – High Performance Cryptocurrency Mining Machine
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Introducing KS3, a powerful and efficient cryptocurrency mining machine designed to deliver exceptional performance in the mining industry. With an impressive KAS hashrate of 8TH/s (±10%), this mining machine ensures fast and reliable processing of cryptographic algorithms, maximizing mining productivity. Powered by a wall power consumption of 3200 W/h (±10%) and with specifications of 8TH 3200 W, the KS3 offers a balanced combination of high hashing power and energy efficiency.
The KS3 features a compact design, with dimensions of 370×195×290(mm), making it space efficient and easy to handle. Its robust, quality construction ensures durability, while the package dimensions of 490×300×400(mm) ensure safe transportation and handling. With a gross weight of 17.6kg and a net weight of 14.7kg, the KS3 strikes the perfect balance between solid construction and ease of use. Buy IceRiver KS3 online KS3L – compact and efficient cryptocurrency mining solution
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The KS3L, an efficient and compact cryptocurrency mining solution that combines power and reliability for optimal mining performance. With a KAS hash rate of 5TH/s (±10%), this mining machine offers fast and accurate crypto calculations, ensuring a competitive advantage in the mining industry. Powered by a wall power consumption of 3200W/h (±10%) and with 5TH 3200W specifications, the KS3L strikes a balance between energy efficiency and hashing power.
Designed with comfort in mind, the KS3L features a compact dimension of 370×195×290(mm), allowing for easy integration into any mining setup. The package dimensions of 490×300×400(mm) ensure safe transportation and handling. Despite its compact size, the KS3L maintains durability with a gross weight of 17.1 kg and a net weight of 14.4 kg.
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Introducing the KS3, a powerful and efficient cryptocurrency mining machine designed to deliver exceptional performance in the mining industry. With an impressive KAS hashrate of 8TH/s (±10%), this mining machine ensures fast and reliable processing of cryptographic algorithms, maximizing mining productivity. Powered by a wall power consumption of 3200W/h (±10%) and boasting specifications of 8TH 3200W, the KS3 offers a balanced combination of high hashing power and energy efficiency.
The KS3 features a compact design, with dimensions of 370×195×290(mm), making it space-efficient and easily manageable. Its robust build and quality construction guarantee durability, while the package's dimensions of 490×300×400(mm) ensure safe transportation and handling. With a gross weight of 17.6kg and a net weight of 14.7kg, the KS3 strikes the perfect balance between solid construction and ease of use.
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KS3L – Efficient and Compact Cryptocurrency Mining Solution
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The KS3L, an efficient and compact cryptocurrency mining solution that combines power and reliability for optimal mining performance. With a KAS hashrate of 5TH/s (±10%), this mining machine delivers fast and accurate cryptographic computations, ensuring a competitive edge in the mining industry. Powered by a wall power consumption of 3200W/h (±10%) and boasting specifications of 5TH 3200W, the KS3L strikes a balance between energy efficiency and hashing power.
Designed with convenience in mind, the KS3L features a compact dimension of 370×195×290(mm), allowing for easy integration into any mining setup. The package dimensions of 490×300×400(mm) ensure safe transportation and handling. Despite its compact size, the KS3L maintains durability with a gross weight of 17.1kg and a net weight of 14.4kg.
iceriveroutlet.com, based in Hong Kong, is one of the largest distributors of miners in offline sales. We are a team of professionals with experience in Blockchain Management, Offline Sales, Electronic Commerce and Cryptocurrency Mining kaspa asic miner We are partnered with ensun to provide our customers with the latest innovations in cryptocurrency miners
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IceRiver KS3 – KS3L 8TH/S 3200W (KAS)
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KS3 – High Performance Cryptocurrency Mining Machine
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Introducing KS3, a powerful and efficient cryptocurrency mining machine designed to deliver exceptional performance in the mining industry. With an impressive KAS hashrate of 8TH/s (±10%), this mining machine ensures fast and reliable processing of cryptographic algorithms, maximizing mining productivity. Powered by a wall power consumption of 3200 W/h (±10%) and with specifications of 8TH 3200 W, the KS3 offers a balanced combination of high hashing power and energy efficiency.
The KS3 features a compact design, with dimensions of 370×195×290(mm), making it space efficient and easy to handle. Its robust, quality construction ensures durability, while the package dimensions of 490×300×400(mm) ensure safe transportation and handling. With a gross weight of 17.6kg and a net weight of 14.7kg, the KS3 strikes the perfect balance between solid construction and ease of use. Buy IceRiver KS3 online KS3L – compact and efficient cryptocurrency mining solution
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The KS3L, an efficient and compact cryptocurrency mining solution that combines power and reliability for optimal mining performance. With a KAS hash rate of 5TH/s (±10%), this mining machine offers fast and accurate crypto calculations, ensuring a competitive advantage in the mining industry. Powered by a wall power consumption of 3200W/h (±10%) and with 5TH 3200W specifications, the KS3L strikes a balance between energy efficiency and hashing power.
Designed with comfort in mind, the KS3L features a compact dimension of 370×195×290(mm), allowing for easy integration into any mining setup. The package dimensions of 490×300×400(mm) ensure safe transportation and handling. Despite its compact size, the KS3L maintains durability with a gross weight of 17.1 kg and a net weight of 14.4 kg.
IceRiver KS3 – KS3L 8TH/S 3200W (KAS)
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KS3 – High-Performance Cryptocurrency Mining Machine
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Introducing the KS3, a powerful and efficient cryptocurrency mining machine designed to deliver exceptional performance in the mining industry. With an impressive KAS hashrate of 8TH/s (±10%), this mining machine ensures fast and reliable processing of cryptographic algorithms, maximizing mining productivity. Powered by a wall power consumption of 3200W/h (±10%) and boasting specifications of 8TH 3200W, the KS3 offers a balanced combination of high hashing power and energy efficiency.
The KS3 features a compact design, with dimensions of 370×195×290(mm), making it space-efficient and easily manageable. Its robust build and quality construction guarantee durability, while the package's dimensions of 490×300×400(mm) ensure safe transportation and handling. With a gross weight of 17.6kg and a net weight of 14.7kg, the KS3 strikes the perfect balance between solid construction and ease of use.
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KS3L – Efficient and Compact Cryptocurrency Mining Solution
where to buy iceriver ks3
The KS3L, an efficient and compact cryptocurrency mining solution that combines power and reliability for optimal mining performance. With a KAS hashrate of 5TH/s (±10%), this mining machine delivers fast and accurate cryptographic computations, ensuring a competitive edge in the mining industry. Powered by a wall power consumption of 3200W/h (±10%) and boasting specifications of 5TH 3200W, the KS3L strikes a balance between energy efficiency and hashing power.
Designed with convenience in mind, the KS3L features a compact dimension of 370×195×290(mm), allowing for easy integration into any mining setup. The package dimensions of 490×300×400(mm) ensure safe transportation and handling. Despite its compact size, the KS3L maintains durability with a gross weight of 17.1kg and a net weight of 14.4kg.
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The Bitmain Antminer KS5
The Bitmain Antminer KS5 (20Th) is an application-specific integrated circuit (ASIC) miner designed for mining Kaspa (KAS) cryptocurrency. It was released in March 2024 and is currently one of the most profitable ASIC miners on the market.
[Image of Bitmain Antminer KS5 (20Th) miner]
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Here are some of the key specifications of the Bitmain Antminer KS5 (20Th):
Algorithm: KHeavyHash
Hashrate: 20 Th/s
Power consumption: 3000W
Dimensions: 350 x 240 x 190 mm
Weight: 12.5 kg
The Bitmain Antminer KS5 (20Th) is a powerful and efficient miner, but it is also important to consider the following factors before purchasing one:
Profitability: The profitability of mining KAS can vary depending on the price of KAS and the difficulty of the Kaspa network. It is important to do your own research to determine if mining KAS is profitable for you.
Power consumption: The Bitmain Antminer KS5 (20Th) consumes a significant amount of power. Make sure you have a reliable and affordable power source before purchasing one.
Heat generation: ASIC miners generate a lot of heat. You will need to have a proper cooling system in place to prevent your miner from overheating.
Overall, the Bitmain Antminer KS5 (20Th) is a good option for miners who are looking for a powerful and efficient miner for mining Kaspa. However, it is important to carefully consider the factors mentioned above before making a purchase.
The Bitmain Antminer KS5 (20Th) is an application-specific integrated circuit (ASIC) miner designed for mining Kaspa (KAS) cryptocurrency. It was released in March 2024 and is currently one of the most profitable ASIC miners on the market.
[Image of Bitmain Antminer KS5 (20Th) miner]
Here are some of the key specifications of the Bitmain Antminer KS5 (20Th):
Algorithm: KHeavyHash
Hashrate: 20 Th/s
Power consumption: 3000W
Dimensions: 350 x 240 x 190 mm
Weight: 12.5 kg
The Bitmain Antminer KS5 (20Th) is a powerful and efficient miner, but it is also important to consider the following factors before purchasing one:
Profitability: The profitability of mining KAS can vary depending on the price of KAS and the difficulty of the Kaspa network. It is important to do your own research to determine if mining KAS is profitable for you.
Power consumption: The Bitmain Antminer KS5 (20Th) consumes a significant amount of power. Make sure you have a reliable and affordable power source before purchasing one.
Heat generation: ASIC miners generate a lot of heat. You will need to have a proper cooling system in place to prevent your miner from overheating.
Overall, the Bitmain Antminer KS5 (20Th) is a good option for miners who are looking for a powerful and efficient miner for mining Kaspa. However, it is important to carefully consider the factors mentioned above before making a purchase. Bitcoin mining with KS5
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iceriveroutlet.com, based in Hong Kong, is one of the largest distributors of miners in offline sales. We are a team of professionals with experience in Blockchain Management, Offline Sales, Electronic Commerce and Cryptocurrency Mining kaspa asic miner We are partnered with ensun to provide our customers with the latest innovations in cryptocurrency miners
The Bitmain Antminer KS5
Bitmain Antminer KS5 (20Th) is an application specific integrated circuit (ASIC) miner designed to mine Kaspa (KAS) cryptocurrency. It was launched in March 2024 and is currently one of the most profitable ASIC miners on the market. [Image of Bitmain Antminer KS5 miner (20)]
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Here are some of the key specifications of the Bitmain Antminer KS5 (20):
Algorithm: KHeavyHash
Hash rate: 20 Th/s
Power consumption: 3000W
Dimensions: 350 x 240 x 190 mm
Weight: 12.5 kilograms
The Bitmain Antminer KS5 (20Th) is a powerful and efficient miner, but it is also important to consider the following factors before purchasing one:
Profitability: The profitability of mining KAS may vary depending on the price of KAS and the difficulty of the Kaspa network. It is important to do your own research to determine if mining KAS is profitable for you.
Power Consumption: The Bitmain Antminer KS5 (20Th) consumes a significant amount of power. Make sure you have a reliable and affordable power source before purchasing one.
Heat Generation: ASIC miners generate a lot of heat. You will need to have a proper cooling system to prevent your miner from overheating.
Overall, Bitmain Antminer KS5 (20Th) is a good choice for miners looking for a powerful and efficient miner to mine Kaspa. However, it is important to carefully consider the factors mentioned above before making a purchase.
Bitmain Antminer KS5 (20Th) is an application specific integrated circuit (ASIC) miner designed to mine Kaspa (KAS) cryptocurrency. It was launched in March 2024 and is currently one of the most profitable ASIC miners on the market. [Image of Bitmain Antminer KS5 miner (20)]
Here are some of the key specifications of the Bitmain Antminer KS5 (20):
Algorithm: KHeavyHash
Hash rate: 20 Th/s
Power consumption: 3000W
Dimensions: 350 x 240 x 190 mm
Weight: 12.5 kilograms
The Bitmain Antminer KS5 (20Th) is a powerful and efficient miner, but it is also important to consider the following factors before purchasing one:
Profitability: The profitability of mining KAS may vary depending on the price of KAS and the difficulty of the Kaspa network. It is important to do your own research to determine if mining KAS is profitable for you.
Power Consumption: The Bitmain Antminer KS5 (20Th) consumes a significant amount of power. Make sure you have a reliable and affordable power source before purchasing one.
Heat Generation: ASIC miners generate a lot of heat. You will need to have a proper cooling system to prevent your miner from overheating.
Overall, Bitmain Antminer KS5 (20Th) is a good choice for miners looking for a powerful and efficient miner to mine Kaspa. However, it is important to carefully consider the factors mentioned above before making a purchase.
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Bitmain Antminer KS5 Pro (21Th) The Bitmain Antminer KS5 (21Th pro) is an application specific integrated circuit (ASIC) miner designed to mine Kaspa (KAS) cryptocurrency. It was launched in March 2024 and is currently one of the most profitable ASIC miners on the market.
Emphasizing the importance of innovation, the Antminer KS5 and KS5 Pro miners are at the pinnacle of mining technology, optimized for the kHeavyHash algorithm and dedicated to mining KAS-Kaspa cryptocurrencies. Both models offer exceptional hash rate with KS5 offering 20TH/s and KS5 PRO offering 21TH/s along with a power efficiency of 190 ±10% J/T, representing a significant jump in mining capabilities.
TECHNICAL DESCRIPTION
Antminer KS5 pro (21Th) model of Bitmain's KHeavyHash mining algorithm with a maximum hashrate of 21Th/s for a power consumption of 3150W.
Specifications MANUFACTURER Bitmain MODEL Antminer KS5 Pro (21st) ALSO KNOWN AS Antminer KS5 Pro Kaspa Miner RELEASE March 2024 SIZE 195 x 290 x 430 mm WEIGHT 16100 g NOISE LEVEL 75 dB FAN(S) 2 POWER 3150 W INTERFACE Ethernet TEMPERATURE 5 – 45 °C HUMIDITY 5 – 95 %Minable coins
Reliable and Durable Design: Built to withstand the demands of continuous mining, the Antminer KS5 pro (21Th) exhibits excellent reliability and durability. Each unit undergoes rigorous testing to ensure it delivers consistent performance under harsh conditions. This is the upgraded version of Antminer KS3 pro (21) to provide a stable and long-lasting mining solution.
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Buy KS0 Pro: IceRiverOutlet Unique Prices!
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At IceRiverOutlet, you will find the most advanced and best quality KS0 Pro miners on the market. These equipment are designed with the latest technology to offer you superior performance and unmatched efficiency in Kaspa mining.
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IceRiverOutlet stands out as the best Kaspa mining site thanks to its impressive catalog of high-quality miners. Each miner is designed with the most advanced technology to ensure optimal performance and exceptional efficiency. It doesn't matter if you are an experienced miner or just starting out, IceRiverOutlet has the perfect equipment for you.
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Positive Opinions and Testimonials
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High Quality Miners at IceRiverOutlet
IceRiverOutlet stands out as the best Kaspa mining site thanks to its impressive catalog of high-quality miners. Each miner is designed with the most advanced technology to ensure optimal performance and exceptional efficiency. It doesn't matter if you are an experienced miner or just starting out, IceRiverOutlet has the perfect equipment for you.
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When you are looking for a Kaspa mining site, prices are a crucial factor. IceRiverOutlet offers very competitive prices and regularly has exclusive promotions and discounts that will allow you to save money without sacrificing quality. With IceRiverOutlet, you get more value for your investment.
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IceRiverOutlet is known for its exceptional customer service. If you have questions or need assistance, their support team is always available to help you. From choosing the right miner to receiving technical support, IceRiverOutlet makes sure your shopping experience is seamless. This commitment to the customer is what sets IceRiverOutlet apart from other Kaspa mining sites.
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Positive Opinions and Testimonials
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KAS Mining
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Bitmain Antminer KS3 8 TH 3500W
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 8 Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 8 Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures
Product description
The Bitmain Antminer KS3 is a reliable miner from Kaspa designed to offer a maximum hash rate of 8 Th/s with an efficient power consumption of 3500W and an energy efficiency of 0.37j/Gh. Equipped with an advanced cooling system using high-quality fans, the KS3 prevents overheating and ensures optimal conditions for continuous mining.
With an advanced semiconductor chip and optimized hashboard configuration, the Bitmain KS3 is an ideal choice for both home and professional miners. Its easy-to-use interface and compact design make it easy to manage and monitor real-time hash speed and other crucial mining parameters.
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Bitmain Antminer KS3 8 TH 3500W
The KS3 is manufactured by Bitmain and is designed to mine with the KHeavyHash algorithm, reaching a maximum hashrate of 8 Th/s with a power consumption of only 3500W.
Main Features:
Manufacturer: Bitmain
Model: Antminer KS3
Algorithm: KHeavyHash
Hashrate: Up to 8 Th/s
Power Consumption: 3500W
Energy Efficiency: 0.37j/Gh
Cooling System: High quality fans to maintain consistent temperatures
Product description
The Bitmain Antminer KS3 is a reliable miner from Kaspa designed to offer a maximum hash rate of 8 Th/s with an efficient power consumption of 3500W and an energy efficiency of 0.37j/Gh. Equipped with an advanced cooling system using high-quality fans, the KS3 prevents overheating and ensures optimal conditions for continuous mining.
With an advanced semiconductor chip and optimized hashboard configuration, the Bitmain KS3 is an ideal choice for both home and professional miners. Its easy-to-use interface and compact design make it easy to manage and monitor real-time hash speed and other crucial mining parameters.
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IBELINK BM KS Max Miner – 10.5 Th/s
The BM KS Max is the iBeLink miner par excellence KHeavyHash algorithm hashrate of 10.5Th/s for a power consumption of 3400W
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Elite Smart Miner
Recently released by iBeLink in February 2024, BM-KS Max is finely optimized for the KHeavyhash algorithm with a maximum hash rate of 10.5Th/s with a power consumption of only 3400W. Equipped with four high-speed fans for instant heat dissipation, iBeLink BM-KS Max can deliver long-lasting mining performance.
iBeLink Max is an advanced Kaspa miner with an air cooling system. Since the noise level of the BM-KS Max is 75 dB, it is recommended to place it in a ventilated area to expel heat and have a comfortable mining experience. The ideal atmospheric temperature for BM-KS Max is 0 – 45 °C.
Specifications
ManufactureriBeLink
ModelBM-KS Max
Also known as iBeLink BM-KS Max KAS Miner
LaunchFebruary 2024
Size without 340x190x293mm
Size with 424x289x388mm
Net weight12200g
Voltage190-240V
Sound level75dB
Fan(s)4
Power3400W
InterfaceEthernet
Temperature0 – 45°C
Humidity0 – 95%
The iBeLink Max's combination of high hash rate and power efficiency allows miners to maximize their mining potential while minimizing their power consumption. Whether you're just getting started in cryptocurrency mining or looking to upgrade your current infrastructure, the iBeLink Max offers unprecedented performance and exceptional profitability in Kaspa mining.
Technical specifications and operating conditions
Equipped with a power supply requirement of 3400 W and an operating voltage range of 190-240 V, the Ibelink is designed to maximize mining efficiency while maintaining a noise level of 75 dB, thanks to its four integrated fans. This configuration guarantees optimal cooling and sustained performance in different conditions. It operates effectively within a temperature range of 0 to 45°C and can withstand humidity levels of 0 to 95%, making it adaptable to various mining environments. Additionally, iBeLink guarantees the reliability of the BM-KS Max with a 6-month warranty, providing users with security and support for their investment.
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Bitmain Antminer KS3
IceRiver KS0
Kso pro
crypto miner
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IBELINK BM KS Max Miner – 10.5 Th/s
The BM KS Max is the iBeLink miner par excellence KHeavyHash algorithm hashrate of 10.5Th/s for a power consumption of 3400W
Website —> https://iceriveroutlet.com/product/ibelink-bm-ks-max/
Elite Smart Miner
Recently released by iBeLink in February 2024, BM-KS Max is finely optimized for the KHeavyhash algorithm with a maximum hash rate of 10.5Th/s with a power consumption of only 3400W. Equipped with four high-speed fans for instant heat dissipation, iBeLink BM-KS Max can deliver long-lasting mining performance.
iBeLink Max is an advanced Kaspa miner with an air cooling system. Since the noise level of the BM-KS Max is 75 dB, it is recommended to place it in a ventilated area to expel heat and have a comfortable mining experience. The ideal atmospheric temperature for BM-KS Max is 0 – 45 °C.
Specifications
Manufacturer : iBeLink
Model : BM-KS Max
Also known as : iBeLink BM-KS Max KAS Miner
Launch : February 2024
Size without : 340x190x293mm
Size with : 424x289x388mm
Net weight : 12200g
Voltage : 190-240V
Sound level : 75dB
Fan(s) : 4
Power : 3400W
Interface : Ethernet
Temperature : 0 – 45°C
Humidity : 0 – 95%
The iBeLink Max's combination of high hash rate and power efficiency allows miners to maximize their mining potential while minimizing their power consumption. Whether you're just getting started with cryptocurrency mining or looking to upgrade your current infrastructure, the iBeLink Max offers unprecedented performance and exceptional profitability in Kaspa mining.
Technical specifications and operating conditions
Equipped with a power supply requirement of 3400 W and an operating voltage range of 190-240 V, the Ibelink is designed to maximize mining efficiency while maintaining a noise level of 75 dB, thanks to its four integrated fans. This configuration guarantees optimal cooling and sustained performance in different conditions. It operates effectively within a temperature range of 0 to 45°C and can withstand humidity levels of 0 to 95%, making it adaptable to various mining environments. Additionally, iBeLink guarantees the reliability of the BM-KS Max with a 6-month warranty, providing users with security and support for their investment.
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Bitmain Antminer KS3
IceRiver KS0
Kso pro
crypto miner
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1,894,221 | How To Handle Large Data Volumes-single table with 10 million records | Handling large single tables with 10 million records requires choosing the right SQL editor and tools... | 0 | 2024-06-20T02:19:19 | https://dev.to/concerate/how-to-handle-large-data-volumes-single-table-with-10-million-records-1ohh | Handling large single tables with 10 million records requires choosing the right SQL editor and tools that can efficiently manage and query large datasets without causing performance issues or memory overload. Here are recommended SQL editors and tools, along with performance optimization suggestions.
Recommended SQL Editors and Tools
**1.DBeaver**
**Advantages:**
Supports various databases.
Efficient data retrieval and caching mechanisms.
Provides advanced SQL execution plans and tuning features.
Extendable plugin support.
Use Case: Suitable for managing and operating large-scale data across multiple databases.
**2.Toad for Oracle/SQL Server**
**Advantages:**
Optimized for large datasets.
Advanced query optimization and execution plan analysis.
Data modeling and automation features.
Use Case: Professional database management with powerful features.
**3.SQLynx**
SQLynx is a SQL Editor tool designed for handling large volumes of data in databases. It is known for its performance and scalability when working with big data. Here are some key features.
**Key Features of SQLynx**
**1.High Performance**
SQLynx is optimized for speed and efficiency, making it suitable for querying and managing large datasets.
It uses advanced query optimization techniques to handle large volumes of data effectively.
**2.Data Integration**
It offers robust data integration capabilities, allowing seamless connectivity with various databases.
SQLynx can handle data import/export efficiently, which is crucial for managing large datasets.
**3.User-Friendly Interface**
SQLynx provides a user-friendly interface that simplifies the process of writing and executing SQL queries.
It includes tools for visualizing data and query results, making it easier to work with large datasets.
**WebSite:** https://www.sqlynx.com/en/#/home/probation/SQLynx
**Performance Optimization Suggestions**
In addition to using the right tools, optimizing your database and queries is essential to efficiently handle a table with 10 million records:
**1.Index Optimization**
Create and maintain appropriate indexes to significantly improve query performance.
Ensure frequently queried columns have suitable indexes.
**2. Query Optimization**
Avoid using SELECT *; select only the columns you need.
Use WHERE clauses to filter data and reduce the volume of returned data.
Avoid using subqueries in your queries; use joins instead.
**3.Partitioning Tables**
Partition large tables to improve query performance and data management efficiency.
Partition based on data access patterns (e.g., by date).
**4.Batch Operations**
Use batch processing for insert, update, or delete operations instead of row-by-row processing.
Utilize the database's batch processing capabilities to improve data operation efficiency.
**5. Database Configuration**
Adjust database configuration parameters, such as memory allocation and cache size, to optimize performance.
Use appropriate storage engines (e.g., InnoDB) and transaction settings.
**Summary**
Handling large data tables with 10 million records requires selecting an efficient SQL editor and tool. Additionally, optimizing indexes, queries, table partitioning, batch operations, and database configuration can significantly improve the performance of queries and data processing. Based on specific needs and database environments, choose the right tool and optimization strategies to ensure efficient data management and query operations. | concerate | |
1,894,220 | 🕒 Understanding the Event Loop and Concurrency Model in JavaScript | JavaScript is single-threaded, but it manages to handle asynchronous operations seamlessly. The magic... | 0 | 2024-06-20T02:18:25 | https://dev.to/dipakahirav/understanding-the-event-loop-and-concurrency-model-in-javascript-1ml2 | javascript, eventloop, webdev, programming | JavaScript is single-threaded, but it manages to handle asynchronous operations seamlessly. The magic behind this is the Event Loop. In this blog, we'll dive deep into how the Event Loop works and how JavaScript handles concurrency. 🧙♂️
please subscribe to my [YouTube channel](https://www.youtube.com/@DevDivewithDipak?sub_confirmation=1
) to support my channel and get more web development tutorials.
### 📜 Table of Contents
1. [Introduction](#introduction)
2. [Call Stack](#call-stack)
3. [Web APIs](#web-apis)
4. [Callback Queue](#callback-queue)
5. [Event Loop](#event-loop)
6. [Microtasks and Macrotasks](#microtasks-and-macrotasks)
7. [A Simple Example](#a-simple-example)
8. [Conclusion](#conclusion)
### 📚 Introduction <a name="introduction"></a>
JavaScript’s concurrency model is based on an event loop, which allows it to perform tasks asynchronously, even though it runs on a single thread. This means it can handle many tasks at the same time without waiting for one to finish before starting another.
### 🏗️ Call Stack <a name="call-stack"></a>
The call stack is a simple data structure that keeps track of function calls. Think of it as a pile of books where you can only add or remove the book on top.
When a function is called, it’s added to the stack. When the function execution is complete, it’s removed from the stack.
```javascript
function foo() {
console.log('foo');
}
function bar() {
foo();
console.log('bar');
}
bar();
```
- When `bar()` is called, it goes on top of the stack.
- Inside `bar()`, `foo()` is called, so it’s placed on top of `bar()`.
- When `foo()` finishes, it’s removed from the stack, and `bar()` continues.
### 🌐 Web APIs <a name="web-apis"></a>
JavaScript in browsers provides Web APIs for handling tasks like `setTimeout`, `fetch`, and DOM events. These APIs run in the background and, when tasks are completed, their callbacks are added to the Callback Queue.
### 🔃 Callback Queue <a name="callback-queue"></a>
The Callback Queue (also known as the Task Queue) is where asynchronous callbacks from Web APIs wait to be executed.
When the call stack is empty, the Event Loop picks the first task from the Callback Queue and puts it on the call stack for execution.
### 🔄 Event Loop <a name="event-loop"></a>
The Event Loop is like a manager who keeps an eye on the call stack and the Callback Queue. Here’s how it works:
1. The Event Loop looks at the call stack to see if it’s empty.
2. If the stack is empty, it takes the first task from the Callback Queue and puts it on the stack.
3. The task runs and is then removed from the stack.
4. This process repeats.
### 🧩 Microtasks and Macrotasks <a name="microtasks-and-macrotasks"></a>
Tasks in JavaScript are divided into two categories: macrotasks and microtasks.
- **Macrotasks**: These include `setTimeout`, `setInterval`, and I/O operations. They are placed in the Callback Queue.
- **Microtasks**: These include `Promise` callbacks and `MutationObserver`. They are placed in the Microtask Queue.
Microtasks have a higher priority than macrotasks. They are executed right after the current task completes, before any macrotasks.
### 👨💻 A Simple Example <a name="a-simple-example"></a>
Let’s look at an example to see this in action:
```javascript
console.log('Start');
setTimeout(() => {
console.log('setTimeout');
}, 0);
Promise.resolve().then(() => {
console.log('Promise');
}).then(() => {
console.log('Another Promise');
});
console.log('End');
```
**Step-by-Step Execution:**
1. `console.log('Start')` is added to the stack and runs immediately, logging "Start".
2. `setTimeout` is called, which registers a task in the Web API to run after 0ms. Its callback is placed in the Callback Queue.
3. `Promise.resolve().then(...)` creates a microtask. The callback for this microtask is placed in the Microtask Queue.
4. `console.log('End')` is added to the stack and runs immediately, logging "End".
At this point, the stack is empty. The Event Loop checks the Microtask Queue first:
5. The first promise callback runs, logging "Promise".
6. The second promise callback runs, logging "Another Promise".
Finally, the Event Loop checks the Callback Queue:
7. The `setTimeout` callback runs, logging "setTimeout".
**Output:**
```
Start
End
Promise
Another Promise
setTimeout
```
### 🏁 Conclusion <a name="conclusion"></a>
Understanding the Event Loop and Concurrency Model is essential for writing efficient JavaScript code. By mastering these concepts, you can handle asynchronous operations better and build more responsive applications. 🌟
### 🚀 Happy Coding!
Feel free to leave your comments or questions below. If you found this guide helpful, please share it with your peers and follow me for more web development tutorials. Happy coding!
### Follow and Subscribe:
- **Instagram**: [devdivewithdipak](https://www.instagram.com/devdivewithdipak)
- **Website**: [Dipak Ahirav] (https://www.dipakahirav.com)
- **Email**: dipaksahirav@gmail.com
- **YouTube**: [devDive with Dipak](https://www.youtube.com/@DevDivewithDipak?sub_confirmation=1
)
- **LinkedIn**: [Dipak Ahirav](https://www.linkedin.com/in/dipak-ahirav-606bba128) | dipakahirav |
1,894,219 | Understanding Zod: A Comprehensive Guide to Schema Validation in JavaScript/Typescript | In the rapidly evolving world of JavaScript development, ensuring the integrity of data is paramount.... | 0 | 2024-06-20T02:13:32 | https://dev.to/abhilaksharora/understanding-zod-a-comprehensive-guide-to-schema-validation-in-javascripttypescript-171k | webdev, javascript, typescript, programming | In the rapidly evolving world of JavaScript development, ensuring the integrity of data is paramount. Whether you're developing a full-stack application, working on the frontend, or managing a complex backend system, the need to validate data consistently and reliably is crucial. Enter Zod, a powerful TypeScript-first schema declaration and validation library. In this blog post, we'll dive deep into what Zod is, why you should consider using it, and how to get started with it.
### What is Zod?
Zod is a TypeScript-first schema declaration and validation library designed to provide a type-safe way to validate JavaScript objects. It helps developers define the shape of expected data and automatically generate TypeScript types from these schemas, ensuring both compile-time and runtime validation. This dual capability makes Zod an invaluable tool for TypeScript developers looking to enforce data integrity in their applications.
### Why Use Zod?
1. **Type Safety**: Zod integrates seamlessly with TypeScript, allowing you to define schemas that are strongly typed. This ensures that your data adheres to the expected structure, reducing the risk of runtime errors.
2. **Ease of Use**: Zod's intuitive API makes it easy to define and validate schemas. It provides a straightforward syntax that is easy to read and write, making it accessible even for developers new to TypeScript or schema validation.
3. **Comprehensive Validation**: Zod supports a wide range of data types and validation rules out of the box, from simple primitives like strings and numbers to complex nested objects and arrays.
4. **Extensibility**: Zod allows you to create custom validation logic, enabling you to tailor the validation process to your specific needs.
5. **Security**: By validating incoming data, Zod helps prevent malicious payloads from being processed. This is crucial for protecting your application from common security threats such as SQL injection and other forms of data-based attacks.
6. **Integration**: Zod can be easily integrated with various frameworks and libraries, including React, Express, and more, making it a versatile choice for different types of projects.
### Using Zod in Both Backend and Frontend
In a typical full-stack application, you often need to validate the same data on both the frontend and backend. To avoid duplication and ensure consistency, it's a good practice to define your Zod schemas in a shared package that can be used across both environments. This approach not only reduces code duplication but also ensures that both the client and server agree on the data structure.
#### Creating a Shared Zod Schema Package
Let's explore how to create a shared Zod schema package that can be published to npm and used in both your frontend and backend projects.
1. **Setup the Project**
First, create a new directory for your shared package and initialize it with npm:
```bash
mkdir my-shared-schemas
cd my-shared-schemas
npm init -y
```
2. **Install Zod**
Install Zod as a dependency:
```bash
npm install zod
```
3. **Define Your Schemas**
Create a `schemas` directory and define your Zod schemas in a file, for example, `userSchema.ts`:
```typescript
// src/schemas/userSchema.ts
import { z } from 'zod';
export const userSchema = z.object({
name: z.string(),
age: z.number(),
email: z.string().email(),
});
```
4. **Build and Publish the Package**
Update your `package.json` to include the necessary build scripts and prepare the package for publishing. You can use a tool like `tsc` (TypeScript Compiler) to compile your TypeScript code:
```json
{
"name": "my-shared-schemas",
"version": "1.0.0",
"main": "dist/index.js",
"scripts": {
"build": "tsc",
"prepublishOnly": "npm run build"
},
"devDependencies": {
"typescript": "^4.0.0"
},
"dependencies": {
"zod": "^3.0.0"
}
}
```
Add a `tsconfig.json` file to configure TypeScript:
```json
{
"compilerOptions": {
"outDir": "./dist",
"module": "commonjs",
"target": "es6",
"declaration": true,
"strict": true,
"esModuleInterop": true
},
"include": ["src"]
}
```
Now, build and publish the package:
```bash
npm run build
npm publish
```
#### Using the Shared Schema Package
With your shared schema package published to npm, you can now install and use it in both your frontend and backend projects.
**In the Frontend:**
Install the shared schema package:
```bash
npm install my-shared-schemas
```
Use the schemas to validate data before sending it to the backend:
```typescript
import { userSchema } from 'my-shared-schemas';
const userData = {
name: "John Doe",
age: 30,
email: "john.doe@example.com",
};
try {
userSchema.parse(userData);
// Send valid data to backend
} catch (e) {
console.error(e.errors);
// Handle validation errors
}
```
**In the Backend:**
Install the shared schema package:
```bash
npm install my-shared-schemas
```
Use the schemas to validate incoming data from the frontend:
```typescript
import express from 'express';
import { userSchema } from 'my-shared-schemas';
const app = express();
app.use(express.json());
app.post('/users', (req, res) => {
try {
userSchema.parse(req.body);
// Handle valid data
res.status(200).send("User data is valid");
} catch (e) {
res.status(400).send(e.errors);
}
});
app.listen(3000, () => {
console.log('Server is running on port 3000');
});
```
By defining and sharing your Zod schemas across both the frontend and backend, you ensure that data is consistently validated at every step. This not only improves code quality but also enhances security by preventing invalid or malicious data from being processed by your server. For example, by validating incoming requests against predefined schemas, you can mitigate the risk of SQL injection and other types of injection attacks, as any unexpected or harmful input will be caught and rejected.
### Advanced Usage
Zod offers advanced features to handle more complex validation scenarios, such as:
- **Union Types**: Validate data against multiple schemas.
- **Optional and Nullable Types**: Handle optional and nullable fields.
- **Custom Validation**: Create custom validation rules.
Here's an example of advanced usage:
```typescript
// Union type
const stringOrNumber = z.union([z.string(), z.number()]);
stringOrNumber.parse("Hello"); // This will pass
stringOrNumber.parse(123); // This will pass
// Optional and nullable fields
const optionalSchema = z.object({
name: z.string(),
age: z.number().optional(),
email: z.string().nullable(),
});
// Custom validation
const positiveNumber = z.number().refine(value => value > 0, {
message: "Number must be positive",
});
positiveNumber.parse(10); // This will pass
positiveNumber.parse(-5); // This will fail with custom error message
```
### Conclusion
Zod is a powerful and versatile tool for schema validation in JavaScript and TypeScript applications. Its seamless integration with TypeScript, ease of use, and extensive validation capabilities make it an excellent choice for developers looking to enforce data integrity. Whether you're working on a small project or a large-scale application, Zod can help you ensure that your data is always valid and correctly structured.
By incorporating Zod into your development workflow and creating a shared schema package, you can catch errors early, improve code quality, and build more robust applications. This approach ensures consistency across your frontend and backend, making your data validation process more efficient and reliable. Moreover, by validating data both on the client side and server side, you enhance the security of your application, reducing the risk of various types of injection attacks and other malicious exploits.
Give Zod a try and experience the benefits of type-safe schema validation in your projects. | abhilaksharora |
1,894,218 | Elixir Tricks & Tips for develop & debugging | Intro I will continue add tips & tricks for develop/debugging with Elixir in this... | 0 | 2024-06-20T02:11:31 | https://dev.to/manhvanvu/elixir-tricks-tips-for-develop-debugging-1p0p | elixir, tips, tricks | ## Intro
I will continue add tips & tricks for develop/debugging with Elixir in this topic for sharing my experiences about Elixir.
## Add .iex.exs file for easy develop & debug
Add .iex.exs file to root folder of Elixir app then:
1. Add alias to avoid type much
example add
```Elixir
alias MyApp.Background.Worker, as: W
```
to your .iex.exs and run with `iex -S mix` or `iex -S mix phx.server` then in Elixir shell you can type like:
```Elixir
W.run()
```
2. Add function/script support for debugging.
You can add a script or function needed for debugging then run in Elixir shell.
## `rescue` in body function
when define a function you can directly use `rescue` in body without `try` keyword.
Example:
```Elixir
def server_info(endpoint, scheme) do
address =
endpoint
|> make_ref(scheme)
|> :ranch.get_addr()
{:ok, address}
rescue
e -> {:error, Exception.message(e)}
end
```
_(code from `:swarm` library)_
| manhvanvu |
1,894,216 | VigRXPlus: Unveiling My Authentic Journey to Enhanced Performance | ⭐ Exploring the Science Behind VigRXPlus Understanding the Ingredients When... | 0 | 2024-06-20T02:07:10 | https://dev.to/superdeals/vigrxplus-unveiling-my-authentic-journey-to-enhanced-performance-54ec | ## ⭐ Exploring the Science Behind VigRXPlus
### Understanding the Ingredients
When it comes to **male enhancement supplements**, one key factor that sets VigRXPlus apart is its powerful blend of natural ingredients. From Korean Red Ginseng to Saw Palmetto, each component plays a crucial role in enhancing **sexual performance** and overall well-being. These ingredients have been carefully selected based on their **proven efficacy** in boosting libido, improving erection quality, and increasing stamina.
Key Ingredients:
- Korean Red Ginseng
- Saw Palmetto
- Ginkgo Biloba
- Damiana
### Research and Studies
VigRXPlus isn't just another supplement making bold claims without any scientific backing. Extensive research and clinical studies have been conducted to validate the effectiveness of this product. One study published in the Journal of Sexual Medicine showed a significant improvement in **erectile function** among men taking VigRXPlus compared to a placebo group.
Research Findings:
- 62.82% Increase in Ability to Maintain Erection
- 61% Increase in Overall Sexual Satisfaction
- 47% Increase in Sex Drive
### Mechanism of Action
Understanding how VigRXPlus works can provide valuable insights into its benefits. By increasing blood flow to the penis, promoting nitric oxide production, and balancing hormone levels, this supplement tackles **erectile dysfunction** from multiple angles. The synergistic effects of its ingredients work together to enhance sexual performance naturally.
Mechanism Highlights:
1. Improved Blood Circulation
2. Enhanced Nitric Oxide Production
3. Hormonal Balance
*💡My comment: Understanding the science behind VigRXPlus can help users make an informed decision about incorporating it into their routine for improved sexual health.*
## [Unlock Your Full Potential with VigRXPlus Now!](https://gchaffi.com/y6eSB3sl)
---
## ⭐ Benefits of Using VigRXPlus
### Improved Sexual Performance
- **VigRXPlus** is renowned for its ability to enhance **sexual performance** by improving blood flow to the genital area, resulting in stronger and longer-lasting erections.
- The blend of natural ingredients in **VigRXPlus** works synergistically to boost libido, increase testosterone levels, and support overall sexual health.
- Users often report experiencing a significant improvement in their bedroom performance, leading to increased satisfaction for both partners.
### Enhanced Libido
- One of the key benefits of using **VigRXPlus** is its effectiveness in boosting libido and sexual desire.
- By incorporating potent aphrodisiacs like horny goat weed and saw palmetto, this supplement helps reignite passion and desire in relationships.
- Many users have noticed a noticeable increase in their sex drive after incorporating **VigRXPlus** into their daily routine.
### Increased Stamina
- **VigRXPlus** is known for its ability to enhance stamina and endurance during intimate moments.
- The unique formula of herbs and nutrients in this supplement supports energy production, allowing users to last longer in bed without feeling fatigued.
- With improved stamina comes increased confidence and satisfaction, making every intimate encounter more enjoyable.
*💡My comment: If you're looking to take your sexual performance to the next level with enhanced libido, improved stamina, and overall better bedroom experiences, don't miss out on trying VigRXX. It's time to unlock your full potential!*
## [Experience Unmatched Bedroom Bliss Now!](https://gchaffi.com/y6eSB3sl)
---
## ⭐ User Testimonials on VigRXPlus
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--- | superdeals | |
1,894,215 | Lock / Mutex to a post graduate CS student (Difficulty 4) | This is a submission for DEV Computer Science Challenge v24.06.12: One Byte Explainer. ... | 0 | 2024-06-20T02:00:31 | https://dev.to/sauravshah31/lock-mutex-to-a-post-graduate-cs-student-difficulty-4-m52 | devchallenge, cschallenge, computerscience, beginners | *This is a submission for [DEV Computer Science Challenge v24.06.12: One Byte Explainer](https://dev.to/challenges/cs).*
## Explainer
A mutex uses architecture-specific atomic instructions (uninterruptible) until successful, allowing thread access to a critical section. For non-atomic architectures, complex logic involving disabling interrupts and continuously checking flags is used.
## Additional Context
I am planning to post 5 submissions explaining "Lock/Mutex" at 5 levels of difficulty. This is Difficulty 4.
A post graduate Computer Science student or an experienced software engineer might have used mutex multiple times. Adding a context on how mutex is implemented to achieve mutual exclusion is something people might find interesting.
For more about explaining the term in 5 Levels of difficulty, refer to the below post. It's interesting!
{% embed https://dev.to/sauravshah31/computer-science-challenge-lets-make-it-interesting-lai %}
[Previous explanation for Difficulty 3](https://dev.to/sauravshah31/lock-mutex-to-a-software-engineer-5hm8)
**Cheers🎉** ~ [sauravshah31](https://x.com/sauravshah31) | sauravshah31 |
1,894,214 | How the Bathroom app offers a real-life solution to a real-world problem | We've all seen the hype around the next big app. But sometimes it's the simple, practical solutions... | 0 | 2024-06-20T01:59:40 | https://dev.to/kevinraposo/how-the-bathroom-app-offers-a-real-life-solution-to-a-real-world-problem-599 | webdev, bootstrap, opinion, opensource | We've all seen the hype around the next big app. But sometimes it's the simple, practical solutions that really shine.
Take the [Bathroom App](https://bathroom.app) – it tackles a universal problem with elegance and a focus on user needs. The concept is straightforward: find a bathroom near you, fast.
But where it gets smart is in the filtering. It gets that different users have different priorities, so you can dial in by cleanliness, distance, gender, amenities, and more. It's the kind of attention to detail that shows they actually get the use case.
George Costanza would be so proud.
What's interesting from a dev perspective is their data approach. They're not relying on some fancy algorithm or bulk data buy. They're doing manual collection supplemented with public resources, and then layering on user input to keep things fresh.
It's a community-driven model that makes a lot of sense for this type of app. The team behind it seems focused on solving the problem rather than chasing trends.
Via their [Product Hunt page](https://www.producthunt.com/posts/bathroom-app):
> We can all relate to the struggle to find a bathroom, especially in major cities. Maybe you get lucky and you're near a Starbucks or you find a place that's open to letting you use their bathrooms. But sometimes, you aren't that lucky and you need to go bad...you can't wait...what do you do?
> Bathroom App is a crowd-sourced webapp to help people find bathrooms near them that they want to use. We collect details like if the bathroom has tampons/pads, gender neutral, baby changing table, cleanness rating etc.
> It's hard enough to find bathrooms, so we should have reliable information around where all the bathrooms are!
There's no flashy marketing, just a solid solution put out there. And you know what? Sometimes that's exactly what the world needs.
So next time you're tempted to build the next viral thing, consider the Bathroom App. It's a great reminder that a simple, well-executed idea can be way more powerful than the latest buzzworthy tech stack.
_What do you think? Are apps like these worth making, or are you too serious to be wasting your time on something as silly as a bathroom app? Share your thoughts below in the comments!_
{% embed https://www.bathroom.app/search?q=My+Location %} | kevinraposo |
1,894,213 | 變數的有效範圍 (scope) 與生命週期 (life time) | 變數的有效範圍與生命週期聽起來似乎很像, 不過實質的意義不同： 有效範圍是指該變數在程式碼的哪些地方有效, 你也可以把它當成哪些地方寫出該變數的名稱, 編譯器是認得的,... | 0 | 2024-06-20T01:58:12 | https://dev.to/codemee/bian-shu-de-you-xiao-fan-wei-scope-yu-sheng-ming-zhou-qi-life-time-2h3l | python, cpp | 變數的有效範圍與生命週期聽起來似乎很像, 不過實質的意義不同：
- 有效範圍是指該變數在程式碼的哪些地方有效, 你也可以把它當成哪些地方寫出該變數的名稱, 編譯器是認得的, 表示在那些地方這個名稱是有效的, 可以存取變數的內容。
- 生命週期指的則是變數在執行時期的那一個時間點才會配置記憶體空間, 又持續到哪一個時間點才會把配置的記憶體空間歸還？
顯而易見, 只要執行到有效範圍內的程式碼, 一定就位於生命週期內, 否則就無法存取該變數。但是反過來說, 就有可能在執行時發生變數仍在其生命週期內, 但因為執行的位置不在該變數的有效範圍內, 而無法存取該變數的狀況。例如, 以下是一個 Python 的例子：
```python
>>> def outer():
... x = 10
... def inner():
... print(x)
... return inner
>>> inner = outer()
>>> x
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'x' is not defined
>>> inner()
10
>>>
```
當我們叫用 outer 取得 inner 時, outer 內的 x 已經配置了, 但是因為閉包 (closure) 的作用, x 並沒有因為從 outer 返回而消失, 仍處於生命週期內, 但是因為我們離開了 outer 函式, 所以不在 x 的有效範圍內, 因此無法取用 x。只要叫用我們剛剛取得的 inner, 就可以確認 x 依然存在, 而可以正確印出 x 的值 10。
其實只要簡單的從函式中叫用另一個函式, 就可以造成這種變數仍在生命週期內, 但卻不在有效範圍內的狀況, 例如：
```python
>>> def func1():
... x = 10
... func2()
... print(x)
>>> def func2():
... print(x)
>>> func1()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 3, in func1
File "<stdin>", line 2, in func2
NameError: name 'x' is not defined
```
當我們叫用 func1 時, 它會再去叫用 func2, 這時 func1 內的 x 仍在其生命週期內, 但是有效範圍僅限於 func1 內部, func2 不在它的有效範圍, 所以在 func2 中取用 x 就會出錯。
透過這兩個範例, 應該可以清楚區別有效範圍跟生命週期的差別。
對於編譯式的程式語言, 例如 C/C++, 有效範圍的問題在編譯時期就會發現, 但是變數的生命週期有時候就不是那麼容易辨別, 例如函式中的靜態變數雖然是宣告在函式內, 但其實在程式一開始執行時就會配置, 因此生命週期涵蓋整個程式執行的期間, 而不只是該函式被叫用執行的期間。以底下這個 C 程式碼為例：
```c
#include<stdio.h>
int foo(void) {
static int i = 10;
return i;
}
void main(void) {
printf("hello\n");
}
```
在 x86 的 gcc 14.1 實際編譯出來的 (Intel) 組合語言如下：
```nasm
foo:
push rbp
mov rbp, rsp
mov eax, DWORD PTR i.0[rip]
pop rbp
ret
.LC0:
.string "hello"
main:
push rbp
mov rbp, rsp
mov edi, OFFSET FLAT:.LC0
call puts
nop
pop rbp
ret
i.0:
.long 10
```
你可以看到 foo 函式內的變數 i 是在函式之外配置的, 程式一執行時就會佔用記憶體, 並且在程式結束後隨之歸還給作業系統, 也就是它的生命週期與程式的執行期間一樣。雖然如此, i 的有效範圍卻只限於 foo 函式內, 如果你在 main 中想要取用這個已經存在的變數 i, 例如：
```c
#include<stdio.h>
int foo(void) {
static int i = 10;
return i;
}
void main(void) {
printf("%d\n", i);
}
```
編譯時就會告知錯誤：
```
<source>: In function 'main':
<source>:8:20: error: 'i' undeclared (first use in this function)
8 | printf("%d\n", i);
| ^
<source>:8:20: note: each undeclared identifier is reported only once for each function it appears in
Compiler returned: 1
```
你看, 編譯器認為這個一個尚未宣告的名稱。
| codemee |
1,894,212 | 考古--operator 為什麼翻譯為『運算子』 | 大部分的程式設計教材都會將 operator 翻譯為『運算子』, 我自己對於『子』一直覺得很疑惑, 倒底是什麼意思？有些人會說這個『子』就跟『帽子』、『鞋子』等等中的『子』一樣是個語尾綴詞,... | 0 | 2024-06-20T01:48:14 | https://dev.to/codemee/kao-gu-operator-wei-shi-mo-fan-yi-wei-yun-suan-zi--2d9m | 詞辨, 翻譯 | 大部分的程式設計教材都會將 operator 翻譯為『運算子』, 我自己對於『子』一直覺得很疑惑, 倒底是什麼意思？有些人會說這個『子』就跟『帽子』、『鞋子』等等中的『子』一樣是個語尾綴詞, 沒有什麼意思, 不過運算子的『子』讀音『ㄗˇ』, 而不是語尾綴詞的『ㄗ˙』, 並不是同一個意思。
因為不得其解的緣故, 所以過去我個人偏好將 operator 翻譯為『運算器』, 取 er、or 字尾為做什麼事情的『人』或『器具』的意思, 但因為這樣的譯法和一般通用的『運算子』不同, 所以也有不少人表達無法接受的意見, 但卻也說不出翻譯為『運算子』的理由。
最近查閱《遠流中文活用大辭典》, 發現[在『子』字的解釋](https://lib.ctcn.edu.tw/chtdict/content.aspx?TermId=14428)中, 有這樣一條：
> 名 （05）稱某種職業之人。例：學子、舟子。
其中『學子』是大家廣為熟知的詞, 在[《國語辭典簡編本》中的解釋](https://dict.concised.moe.edu.tw/dictView.jsp?ID=28518&q=1)就是：
> 學生、求學的人。
而『舟子』可能大家並不一定聽過, 在[《重編國語辭典修訂本》中的解釋](https://dict.revised.moe.edu.tw/dictView.jsp?ID=115700)如下：
> 船夫、梢公、水手
也就是操舟的人。因此, 『子』字在漢文中本來就有『做什麼事的人』的意思, 依此脈絡, 將 operator 譯為『運算子』就很合理了。
不過到了現代, 大部分人 (像我就是) 可能已經不知道『子』的意思, 所以程式語言中比較近代才出現或是流行的語彙, 就不大會用『子』字, 舉例來說, Python 中常常出現的 iterator 和 generator, 通用的譯法為『迭代器』(簡體字的世界有人譯為『迭代子』) 與『生成器』, 是用『器』字, 而不是用『子』字。藉由『子』和『器』的區別, 也可以大概知道這個詞彙的年代遠近。
瞭解『運算子』的可能源由後, 回頭過來看 operand 譯為『運算元』的『元』字, 我想比較合理的說法可以參考[《遠流中文活用大辭典》裡的這個條目](https://lib.ctcn.edu.tw/chtdict/content.aspx?TermId=4925)：
> 形 （04）基本的。例：元素。
『運算元』應該是取用來運算的『元素』之意。在日文中, 將 operator 與 operand 譯為『[演算子](https://ja.wikipedia.org/wiki/%E6%BC%94%E7%AE%97%E5%AD%90)』和『[被演算子](https://ja.wikipedia.org/wiki/%E8%A2%AB%E6%BC%94%E7%AE%97%E5%AD%90)』, 沒有幫 operand 另創一詞, 也算是很直白的譯法, 簡單明瞭, 就是『被拿來運算的東西』, 不過中文除了現在大家流行的『被自殺』、『被消失』這些新興詞彙外, 很少用『被』字, 否則偷懶一點的譯法就是把把 operand 譯為『被運算子』了。 | codemee |
1,894,211 | Stay Updated with Python/FastAPI/Django: Weekly News Summary (10/06/2024–16/06/2024) | Dive into the latest tech buzz with this weekly news summary, focusing on Python, FastAPI, and Django... | 0 | 2024-06-20T01:42:13 | https://poovarasu.dev/python-fastapi-django-weekly-news-summary-10-06-2024-to-16-06-2024/ | python, django, flask, fastapi | Dive into the latest tech buzz with this weekly news summary, focusing on Python, FastAPI, and Django updates from June 10th to June 16th, 2024. Stay ahead in the tech game with insights curated just for you!
This summary offers a concise overview of recent advancements in the Python/FastAPI/Django framework, providing valuable insights for developers and enthusiasts alike. Explore the full post for more in-depth coverage and stay updated on the latest in Python/FastAPI/Django development.
Check out the complete article here [https://poovarasu.dev/python-fastapi-django-weekly-news-summary-10-06-2024-to-16-06-2024/](https://poovarasu.dev/python-fastapi-django-weekly-news-summary-10-06-2024-to-16-06-2024/) | poovarasu |
1,894,209 | Stay Updated with PHP/Laravel: Weekly News Summary (10/06/2024–16/06/2024) | Dive into the latest tech buzz with this weekly news summary, focusing on PHP and Laravel updates... | 0 | 2024-06-20T01:40:22 | https://poovarasu.dev/php-laravel-weekly-news-summary-10-06-2024-to-16-06-2024/ | php, laravel | Dive into the latest tech buzz with this weekly news summary, focusing on PHP and Laravel updates from June 10th to June 16th, 2024. Stay ahead in the tech game with insights curated just for you!
This summary offers a concise overview of recent advancements in the PHP/Laravel framework, providing valuable insights for developers and enthusiasts alike. Explore the full post for more in-depth coverage and stay updated on the latest PHP/Laravel development.
Check out the complete article here [https://poovarasu.dev/php-laravel-weekly-news-summary-10-06-2024-to-16-06-2024/](https://poovarasu.dev/php-laravel-weekly-news-summary-10-06-2024-to-16-06-2024/) | poovarasu |
1,894,205 | Item 36: Use a classe EnumSet em vez dos campos de bits | 1. Uso Tradicional de Campos de Bits: Enumeração com Potências de 2: Cada constante enum é... | 0 | 2024-06-20T01:37:10 | https://dev.to/giselecoder/item-36-use-a-classe-enumset-em-vez-dos-campos-de-bits-1gh6 | java, effectivava, development, enums | **1. Uso Tradicional de Campos de Bits:**
- Enumeração com Potências de 2:
Cada constante enum é atribuída a uma potência de 2.
Combinação de Constantes: Utiliza-se a operação bitwise OR para combinar constantes.
- Operações de Conjunto:
União e interseção são feitas eficientemente com aritmética bitwise.
**2. Desvantagens dos Campos de Bits:**
- Interpretação Difícil:
Campos de bits são mais difíceis de interpretar do que constantes enum int.
- Iteração Complexa:
Não há um modo fácil de iterar sobre os elementos de um campo de bits.
- Limitação de Tamanho:
Precisa-se prever o número máximo de bits necessários ao criar a API, limitando a 32 (int) ou 64 bits (long).
**3. Alternativa Melhor - EnumSet:**
- Representação Eficiente:
java.util.EnumSet representa conjuntos de valores retirados de um único tipo enum.
- Interface Set:
EnumSet implementa a interface Set, oferecendo segurança de tipo e interoperabilidade.
- Desempenho Comparável:
Para enums com até 64 elementos, EnumSet é representada com um único long.
- Operações de Conjunto:
Métodos como removeAll e retainAll usam aritmética bitwise internamente.
**4. Exemplo de Uso:**
**5. Vantagens do EnumSet:**
Clareza e Concisão: Código é mais claro e conciso em comparação com campos de bits.
- Segurança e Facilidade:
Evita erros e a complexidade do tratamento manual de bits.
- Flexibilidade:
Aceita qualquer implementação de Set, embora o uso principal seja EnumSet.
**6. Desvantagem e Solução Temporária:**
- Imutabilidade:
Não é possível criar uma EnumSet imutável (até o Java 9).
- Solução Temporária:
Pode-se envolver EnumSet com Collections.unmodifiableSet, embora com perda de concisão e desempenho.
**Conclusão:**
Use EnumSet em vez de campos de bits para representar conjuntos de valores enum. EnumSet oferece um desempenho comparável, com maior clareza, segurança e facilidade de uso, evitando as limitações e complexidades associadas aos campos de bits.
| giselecoder |
1,890,795 | Exploring the full potential of the Logto Management API | In this article, we will reemphasize the definition of the Logto Management API, explain how it... | 0 | 2024-06-20T01:34:43 | https://blog.logto.io/explore-management-api/ | webdev, programming, identity, opensource | In this article, we will reemphasize the definition of the Logto Management API, explain how it works, and showcase typical scenarios to boost your productivity and unlock more use cases.
---
As an infrastructure service, we strive to make using our Logto Management API easier and faster. We've recently updated our guides and tutorials. In this article, we will reemphasize the definition of the Logto Management API, explain how it works, and showcase typical scenarios to boost your productivity and unlock more use cases.
# What is Logto Management API
The Logto Management API is a powerful set of pre-built APIs that gives developers full control to customize their implementation to suit their product needs and tech stack.
It is listed in the API resource list and cannot be deleted or modified. Everything you can do in the Logto Admin Console can also be done with the Logto Management API.
It identifier is in the pattern of `https://[tenant-id].logto.app/api`
It includes `all` permissions by default. As Logto grows, we will continue to make permissions more granular.
With the Logto Management API, you can access Logto's robust backend services, which are highly scalable and can be utilized in a multitude of scenarios. To learn about the APIs that are available, please visit [Logto API references](https://openapi.logto.io/).
# Typical scenarios for using management API
Our developers have implemented many additional features using our Management API. We believe that our API is highly scalable and can support a wide range of your needs. Here are a few examples of scenarios that are not possible with the Logto Admin Console but can be achieved through the Management API.
### Implement user profile with your custom UI
Logto currently does not provide a pre-built UI solution for user profiles. We recognize that user profiles are closely tied to business and product attributes. While we work on determining the best approach, we suggest using our APIs to create your own solution. For instance, you can utilize our interaction API, profile API, and verification code API to develop a custom solution that meets your needs. We've prepared a dedicated page [User Profile](https://docs.logto.io/docs/recipes/user-profile/) for tutorials and guides.
An interesting example is that the Logto Cloud user profile feature is built using the Logto Management API.
### Implement organization management with your custom UI
If you're using the [organization](https://docs.logto.io/docs/recipes/organizations/) feature to build your multi-tenant app, you might need the Logto management API for tasks like org invitations and member management.
Similarly, Logto Cloud invitation and collaboration feature is built using the Logto Management API too.
To extend that case, for your SaaS product, where you have both admins and members in the tenant, the Logto management API can help you create a custom admin portal tailored to your business needs. Check out [this](https://docs.logto.io/docs/recipes/organizations/configuration/#configure-via-management-api) for more detail.
### Advanced user search
The Logto Admin Console supports basic search and filtering functions. If you need more advanced options to tailor your user management service to your business needs, you can use the Logto Management API. It supports advanced search options, such as:
1. Fuzzy search
2. Exact match
3. Case sensitivity
4. Specify fields
Check out our [Advanced User Search](https://docs.logto.io/docs/recipes/manage-users/advanced-user-search/) tutorials and guides.
### Utilize Logto's logs to construct your own services
Logto's audit log allows you to easily monitor user activity and events. It provides a strong foundation for various user management and health check business scenarios.
By utilizing the management API, you can access real-time audit log data. This allows you to design your own schema model and dashboard using the log data obtained from Logto.
### Migrate and import users to Logto
Using the Management API can easily help you import user data, especially you want to do a [migration](https://docs.logto.io/docs/recipes/migrations/) to Logto.
After you prepare the user data and set up [password hashin](https://docs.logto.io/docs/recipes/migrations/#password-hashing)g and the user schema, set up the Management API connection and we'll call create user API to import the user data. To learn more about the migration, check out this document.
# How to access Logto Management API
### Create a M2M app
Select the M2M app type and start the creation process. After creation, you'll be directed to a module where you can assign a machine-to-machine role.
After providing a name and description, you'll see a module that asks you to assign a role. This module includes all M2M roles, roles indicated by a Logto icon means that these roles include Logto management API permissions.
Assigning M2M roles include Logto management API permissions for your M2M app.
### Why using machine-to-machine and assigning machine-to-machine roles?
Why does Logto allow M2M (Machine-to-Machine) communication to call the Logto Management API instead of using API keys?
Logto tackles customer identity management and strictly follows open standards like OAuth 2.0 and OpenID Connect. M2M tokens offer secure server-to-server interactions with specific scopes, providing better security than static API keys. Unlike API keys, which don't expire and pose a higher risk if compromised, M2M tokens have defined expiration times, limiting the window for potential misuse.
In Logto, we use role-based access control (RBAC) to protect and manage access to the Logto Management API. This entity diagram shows how it works.
The relationship of permissions, API resources, roles and machine-to-machine application.
### Fetch an access token
#### Basics about access token request
M2M app makes a `POST` request to the token endpoint to fetch an access token by adding the following parameters using the `application/x-www-form-urlencoded` format in the HTTP request entity-body:
- **grant_type**: must be set to `client_credentials`
- **resource**: the resource indicator you want to access
- **scope**: The scope of the access request
And you also need to include your M2M credentials for the token endpoint to authenticate your M2M app. This is achieved by adding a `Authorization` header using [Basic authentication](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Authorization#basic_authentication), where username is the App ID, and password is the App Secret.
You can find the App ID and App Secret from your M2M applicaiton details page:
An example of the Logto Management API access token request is:
```
POST /oidc/token HTTP/1.1
Host: you-tenant-id.logto.app
Authorization: Basic czZCaGRSa3F0MzpnWDFmQmF0M2JW
Content-Type: application/x-www-form-urlencoded
grant_type=client_credentials
resource=https://you-tenant-id.logto.app/api
scope=all
```
#### Fetch access token for Logto Management API
Logto provides a built-in “Logto Management API” resource, it's a readonly resource with the `all` permission to access Logto Management API, you can see it from your API resource list. The resource API indicator is in the pattern of `https://{YOUR_TENANT_ID}.logto.app/api` , and this will be your resource value used in the access token request body.
Before accessing Logto Management API, make sure your M2M app has been assigned with M2M roles that include the `all` permission from this built-in “Logto Management API” resource.
Now, compose all we have and send the request:
```
const yourTenantId = 'your-tenant-id';
const tokenEndpoint = `https://${yourTenantId}.logto.app/oidc/token`;
const applicationId = 'your-application-id';
const applicationSecret = 'your-application-secret';
const fetchAccessToken = async () => {
return await fetch(tokenEndpoint, {
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
Authorization: `Basic ${Buffer.from(`${applicationId}:${applicationSecret}`).toString(
'base64'
)}`,
},
body: new URLSearchParams({
grant_type: 'client_credentials',
resource: `https://${yourTenantId}.logto.app/api`,
scope: 'all',
}).toString(),
});
};
curl --location \
--request POST '<https://$>{your-tenant_id}.logto.endpoint/oidc/token' \
--header 'Authorization: Basic ${your_auth_string}' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'grant_type=client_credentials' \
--data-urlencode 'resource=https://${your_tenant_id}.logto.app/api' \
--data-urlencode 'scope=all'
```
> 💡 When you're interacting with Management API, use the default Logto endpoint `https://[your-tenant-id].logto.app/oidc/token` to grant the Access Token.
#### Token response
A successful response body would be like:
```
{
"access_token": "eyJhbG...2g", // JWT format access token, used for accessing the resource
"expires_in": 3600, // Token expiration in seconds
"token_type": "Bearer", // Auth type for your request when using the Access Token
"scope": "all" // "all" for Logto Management API resource and
}
```
> 💡 Logto does not currently support the M2M app to represent a user. The `sub` in the access token payload will be the App ID.
### Access Logto Manage API using Access Token
You may notice the token response has a `token_type` field, which it's fixed to `Bearer`. Thus you should put the Access Token in the `Authorization` field of HTTP headers with the Bearer format (`Bearer YOUR_TOKEN`).
Now you can access the Logto Management API by reqeusting the Logto Managemetn API endpoint `https://[your-tenant-id].logto.app/api`, to get all applications in Logto
```
curl --location \
--request GET 'https://your.logto.endpoint/api/applications' \
--header 'Authorization: Bearer eyJhbG...2g'# Access Token
```
# Related resources
Here are some related resources that delve into our previous insights and strategies for using the Logto Management API. These materials cover various aspects, including best practices, implementation tips, and use cases, to help you make the most out of the Logto Management API for your projects.
- [Machine-to-machine quick start](https://docs.logto.io/quick-starts/m2m/)
- [Interact with Management API](https://docs.logto.io/docs/recipes/interact-with-management-api/)
- [Logto API references](https://openapi.logto.io/)
- [Use Logto Management API: A step-by-step guide](https://blog.logto.io/management-api/)
{% cta https://logto.io/?ref=dev %} Try Logto Cloud for free {% endcta %}
| palomino |
1,894,204 | SDLC without DevOps | The Software Development Life Cycle (SDLC) is a structured process that guides the creation of... | 0 | 2024-06-20T01:31:34 | https://dev.to/abir101/sdlc-without-devops-4jj3 | webdev, devops, deployment, productivity | The Software Development Life Cycle (SDLC) is a structured process that guides the creation of high-quality software. It encompasses all stages, from initial planning and requirements gathering, through coding and testing, to deployment and maintenance. This article explores the SDLC in the context of a Java application. I'll focus on SDLC stages from **Development** to **Deployment** & **Monitering** of the application.
## Development Server: The Crucible of Innovation
- **Purpose:** The development server is a local environment where individual developers implement features, fix bugs, and conduct initial testing.
- **Setup:** Developers clone the code repository and install Java & JDK. The application runs in this server using development environment variables (e.g., development database credentials).
- **Tools:** IDEs and code linters are used to ensure code quality and consistency.
- **Workflow:** After developing and locally testing a feature, the developer pushes the code to the testing server.
## Testing Server: The Bastion of Quality Assurance
- **Purpose:** This server is dedicated to comprehensive feature testing to identify bugs and vulnerabilities before deployment.
- **Types of Tests:**
- **Unit Tests:** Verify the functionality of individual components in isolation.
- **Integration Tests:** Check how different components interact.
- **End-to-End (E2E) Tests:** Simulate user flows through the entire application.
- **Performance Tests:** Assess how the application handles load and stress.
- **Setup:** JDK and Maven (for building and running the application) are installed. Code is pulled from the "testing" Git branch.
- **QA Role:** Quality Assurance (QA) teams manually test the software, focusing on usability, exploratory testing, and requirement fulfillment.
- **Benefits of a Separate Server:**
- Long-running tests won't block developers.
- Dedicated resources for testing ensure reliability.
- **Next Step:** After successful testing, the code is promoted to the production server.
## Production Server: The Arena of Real-World Usage
- **Purpose:** This is the live environment where end-users interact with the application. It houses the most stable code version.
- **Setup:** Similar to the testing server, JDK and Maven are installed. Code is pulled from the "release" Git branch. The application runs in a production server environment (e.g., Tomcat) using production environment variables.
- **Monitoring:** The application is continuously monitored. If issues arise, actions might include:
- Rolling back to a previous version.
- Assigning hotfix tasks to developers.
## Conclusion
This SDLC approach can be done manually without automation but in the world of fast feature deployment we have to automate some steps and implement devops methodology. I'll be writing about automating this application setup in my future articles.
This is my first blog writing. Feel free to comment if you have any questions or any refinement to the article. If you like the blog , don’t forget to like it & share with your friends/colleagues.
To get in personal touch, connect me on:
Linkedin:https://www.linkedin.com/in/abirmoulick/
Thanks for reading
Written with ❤️ & passion 🔥 by Abir Moulick
| abir101 |
1,894,190 | Item 35: Use os campos de instância em vez dos valores ordinais | 1. Problemas com o Uso de Ordinais: Manutenção Difícil: Reordenar as constantes de enum quebra a... | 0 | 2024-06-20T01:29:02 | https://dev.to/giselecoder/item-35-use-os-campos-de-instancia-em-vez-dos-valores-ordinais-59l1 | java, efectivejava, enums, development | **1. Problemas com o Uso de Ordinais:**
- Manutenção Difícil:
Reordenar as constantes de enum quebra a lógica dependente do método ordinal().
- Limitações de Valor Int:
Não é possível associar múltiplas constantes ao mesmo valor int.
- Constantes Falsas Necessárias:
Para valores int intermediários sem denominação, você precisa adicionar constantes não representativas.
**2. Exemplo de Problema:**
- Reordenar Constantes:
Quebraria numberOfMusicians().
- Adicionar Constantes:
Impossível sem conflitos de valores.
**3. Solução Recomendada:**
- Use Campos de Instância:
**4. Benefícios da Solução:**
- Flexibilidade:
Permite associar múltiplas constantes ao mesmo valor int.
Manutenção Simplificada: Reordenar constantes ou adicionar novas não quebra a lógica existente.
- Evita Constantes Falsas:
Não há necessidade de adicionar valores intermediários desnecessários.
**5. Recomendação Geral:**
- Evitar Ordinais:
A especificação do Enum sugere que o método ordinal() deve ser usado principalmente por estruturas de dados baseadas em enums, como EnumSet e EnumMap.
- Uso Restrito:
Se não estiver criando tais estruturas, é melhor evitar o método ordinal().
**Conclusão:**
Utilize campos de instância em enums para armazenar valores associados, garantindo maior flexibilidade, facilidade de manutenção e evitando a criação de constantes artificiais.
| giselecoder |
1,894,203 | project ideas topic | develop a chat AI into our existing Angular application integrate payment gateway angular | 0 | 2024-06-20T01:23:58 | https://dev.to/shivam_sahu_704d021337aec/project-ideas-topic-31f0 | develop a chat AI into our existing Angular application
integrate payment gateway angular
| shivam_sahu_704d021337aec | |
1,422,740 | Install Nginx in Ubuntu 20.04 | 1. Click on Launch Instances 2. Add Server Details Enter Server name Select OS Image here we... | 0 | 2023-04-01T15:13:52 | https://dev.to/anand_h_parmar/install-nginx-in-ubuntu-2004-5ff7 | **1. Click on Launch Instances**
**2. Add Server Details**
- Enter Server name
- Select OS Image here we select Ubuntu 22.04
- Create key pair file this will be use for SSH login
**Configure network setting**
- Select create security group if you have existing you can select your existing security group also
- Allow SSH traffic from Anywhere for security best practise allow your or specific List of IP
- Select Allow both HTTP & HTTPS traffic from internet
**Create Elastic IP**
Normal EC2 server if restart or Reboot then there Public IP will always change there for we are creating Elastic IP separately
- Click on **Allocate Elastic IP address**
Click on **Allocate**
Click on **Assign Elastic IP**
Select that created Ec2 server from List
Here you can check that Elastic IP
**Connect to SSH**
`chmod 400 TestServer.cer`
`sudo ssh -i TestServer.cer ubuntu@54.205.12.196`
**Install Nginx**
`sudo apt update
sudo apt install -y nginx`
| anand_h_parmar | |
1,893,063 | Experience completing LeetCode SQL 50 (1/?) | In today’s post we are going to talk about the leet code study plan SQL 50 and my journey to... | 0 | 2024-06-20T01:20:37 | https://dev.to/caresle/experience-completing-leetcode-sql-50-1-e2a | sql, leetcode | In today’s post we are going to talk about the leet code study plan `SQL 50` and my journey to completing this challenge.
The reason I’m taking this is because I want to improve my skills with sql, to be complete honest with you, It’s somethings that with the time as become one of my weaknesses, one of the reasons is that I’ve been spending a lot of time working with orm such as `Eloquent`of laravel or `Typeorm` for nodejs.
But this need to end, so for that reason, I decide to take this challenge. Today post will be focus on the first section of this challenge.
This first section was about the select statement, the challenges were perfect to warm up for the next sections, I think my favorite one was `Invalid Tweets` . This section took me around 30 minutes to complete, but it was perfect to start doing challenges of sql on leet code, Let’s see how this goes with the next sections. | caresle |
1,894,192 | Some UX Design Principles Everyone Should Know ✨ | Hitting the ground running with a new app idea is tough. There are a million things to do and no time... | 0 | 2024-06-20T01:17:27 | https://dev.to/firas_lajmi_/some-ux-design-principles-everyone-should-know-oe4 | ux, webdev, design | Hitting the ground running with a new app idea is tough. There are a million things to do and no time to do them. You’ve gone through the “justification” phase, explaining to everyone and their mom why the world needs your application. You’ve documented every single forecast and business plan. Now it’s time to start thinking about actually executing your vision. It all begins with User Experience. Great UX design isn't an afterthought or a “nice to have”; it's an absolute necessity for any application aiming to stand out and thrive. That said, let's dive into some UX design principles that everyone should know.
## User-Centered Design🗣️
First things first: always put your users at the center of your design process. This means understanding their needs, behaviors, and pain points. It's not about what you think looks good; it's about making sure your users can accomplish the goal you’ve set out for them with the least amount of resistance.
- **Conduct User Research**: Surveys, interviews, and usability tests are your best friends here.
- **Create Personas**: Develop detailed profiles of your target users to guide your design decisions.
- **User Journey Mapping**: Map out the steps users take to complete tasks within your application, to identify opportunities for improvement.
**
## Simplicity and Clarity🧘
Less is more. Seriously. Don't overload your users with information or options. Keep your design clean, straightforward, and intuitive. As users flock to your application, you’ll be able to take their feedback and make well educated, data-driven decisions about what to improve.
- **Clear Navigation**: Make sure users can easily find what they need without getting lost. Don’t hide primary actions behind layers of interaction.
- **Minimalist Design**: Remove any unnecessary elements that don't add value. Truly ask yourself why something exists, and how it aids in users accomplishing their goals.
- **Readable Content**: Use clear, concise language and break up text with headings, bullet points, or some very cool emojis if you’re hip 😎.
**
## Consistency
Like all things, consistency is key. Especially when it comes to creating a seamless user experience. This means maintaining uniformity in your design elements across your website or app.
- **Design System**: I love design systems. There’s nothing better than an organized style guide that includes typography, color schemes, button styles, and all the little components that make your application unique.
- **Consistent Interactions**: Make sure similar actions produce similar results throughout your site. Don’t have twelve different variations of that modal. People notice, and it makes you look silly.
- **Branding**: Keep your branding elements consistent to build trust and foster that brand recognition.
**
## Accessibility
Accessibility needs to be top of mind at the outset of any project. Baking accessibility best practices into the UX and design phase of your application will ensure you’re providing an equitable experience for each and every one of your users, regardless of how they interact with the web. Make sure you’re at a minimum making these considerations:
- **Alt Text for Images**: This is too easy not to be doing. Provide descriptive text for images to assist screen readers.
- **Keyboard Navigation**: Not everyone browses the web with a mouse or a $130 Apple trackpad. Make considerations for those who navigate with a keyboard.
- **Contrast Ratios**: I’m old and this one bothers me more and more. Do a quick check to make your text has at least a AA contrast ratio. There are several tools for this. Pick one.
**
## Feedback and Responsiveness
In our wild world of JavaScript applications, ensuring that a user knows that something is happening, has become more important than in the past. Our applications connect to more third-party services these days, and our users must know that an action they’ve taken is processing. We use these strategies to help with that;
- **Loading Indicators / Skeletons** 💀: Skeleton loaders not only sound cool, they also provide anticipatory design elements that give users a sense of what will be on the page, before the data has fully loaded.
- **Error Messages**: Provide clear, helpful error messages when something goes wrong. There’s nothing worse than a user seeing Uncaught - - **ReferenceError**: Invalid left-hand side in assignment or some other nonsense. Give them plain English feedback instead!
Performance Optimization: This is becoming more and more tricky. The more services we integrate, the more complex a database becomes the more creative you have to get to ensure an application is performant.
**
## Emotional Design
This is such a cool concept to us. Emotional design focuses more on creating experiences that evoke a particular feeling from your users. As cliche, as it may sound, this creates a unique connection and keeps your users feeling positive about the service you’re providing them. This can be done in a few ways;
- **Storytelling**: Visual storytelling on the web is an art form. We love expressing our creativity through creating a full-fledged digital experience.
- **Micro-Interactions**: Small, thoughtful animations and interactions tend to put you in a position to entertain and engage your users and drive them to keep coming back.
- **Human Touch**: Incorporate human elements, like friendly language, relatable imagery, or exceptionally witty content, like the content you’re reading right this second.
**
## Iterative Design
Everything is iterative. After you build an MVP, it’s back to the drawing board. Starting the process over and continuously iterating is the only way to keep pace with the multi-billion dollar applications that exist in our world. Stay engaged with your user base, listen to their feedback, and they’ll remain loyal to you.
- **Usability Testing**: Regularly test your designs with real users. This is and always will be something that the tech giants miss out on. Don’t miss the mark here.
- **A/B Testing**: Get super granular with this. A/B test simple language, or small components, and use that information to inform the larger design.
- **Analytics**: Use data to inform all of your decisions. There needs to be a why, and data will uncover it.
**
## Focus on Business Goals
**While user satisfaction is paramount, your application should align with your business objectives. All that work you did at the inception of your idea shouldn’t go to waste. The forecasts and the documentation are invaluable, but balance user needs with your goals. No bullet points here, those business goals are yours to define. We’ll be here to help you refine and execute them.
Keep testing, collaborating, learning, and evolving. | firas_lajmi_ |
1,894,191 | Load Balancer: Ensuring High Availability and Scalability | In today's digital landscape, where downtime can lead to significant revenue loss and a tarnished... | 0 | 2024-06-20T01:14:52 | https://dev.to/iaadidev/load-balancer-ensuring-high-availability-and-scalability-npg | loadbalancer, webdev, network, devops |
In today's digital landscape, where downtime can lead to significant revenue loss and a tarnished reputation, ensuring high availability and scalability of your applications is crucial. A load balancer is an essential component in achieving this goal. This blog will delve into the concept of load balancing, its importance, types, and a step-by-step guide on setting up a load balancer, complete with relevant code examples.
## Table of Contents
1. What is a Load Balancer?
2. Why Use a Load Balancer?
3. Types of Load Balancers
- Hardware Load Balancers
- Software Load Balancers
- Cloud-based Load Balancers
4. How Load Balancers Work
5. Setting Up a Load Balancer
- Prerequisites
- Step-by-Step Guide
6. Load Balancing Algorithms
7. Monitoring and Maintenance
8. Conclusion
## 1. What is a Load Balancer?
A load balancer is a device or software that distributes network or application traffic across multiple servers. This ensures no single server becomes overwhelmed, leading to improved responsiveness and availability of your application. By balancing the load, it prevents server overload and enhances the user experience.
## 2. Why Use a Load Balancer?
### High Availability
Load balancers ensure that if one server fails, the traffic is automatically redirected to other available servers, minimizing downtime.
### Scalability
As your user base grows, you can add more servers to handle increased traffic. The load balancer distributes traffic evenly across all servers.
### Performance
By distributing the load, servers can handle requests more efficiently, reducing latency and improving the overall performance of your application.
### Redundancy
Load balancers provide redundancy, ensuring continuous service even if some servers go down.
## 3. Types of Load Balancers
### Hardware Load Balancers
These are physical devices that are placed between the client and the backend servers. They are highly efficient but can be expensive and less flexible compared to software solutions.
### Software Load Balancers
Software load balancers run on standard servers and can be easily configured and scaled. Examples include HAProxy, NGINX, and Apache HTTP Server.
### Cloud-based Load Balancers
These are managed services provided by cloud providers like AWS (Elastic Load Balancing), Google Cloud (Cloud Load Balancing), and Microsoft Azure (Azure Load Balancer). They offer high availability, scalability, and ease of management.
## 4. How Load Balancers Work
Load balancers use various algorithms to distribute incoming traffic. Some common algorithms include:
- **Round Robin**: Distributes requests sequentially across the server pool.
- **Least Connections**: Sends requests to the server with the fewest active connections.
- **IP Hash**: Uses the client's IP address to determine which server will receive the request.
## 5. Setting Up a Load Balancer
### Prerequisites
Before setting up a load balancer, ensure you have:
- Multiple backend servers running the application.
- A load balancer server or a cloud-based load balancing service.
- Basic knowledge of networking and server management.
### Step-by-Step Guide
#### Using NGINX as a Software Load Balancer
**Step 1: Install NGINX**
First, install NGINX on your load balancer server. For Ubuntu, use the following commands:
```bash
sudo apt update
sudo apt install nginx
```
**Step 2: Configure NGINX**
Next, configure NGINX to distribute traffic across your backend servers. Open the NGINX configuration file:
```bash
sudo nano /etc/nginx/nginx.conf
```
Add the following configuration to the `http` block:
```nginx
http {
upstream backend {
server backend1.example.com;
server backend2.example.com;
server backend3.example.com;
}
server {
listen 80;
location / {
proxy_pass http://backend;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
}
```
Replace `backend1.example.com`, `backend2.example.com`, and `backend3.example.com` with the actual IP addresses or domain names of your backend servers.
**Step 3: Test the Configuration**
Test the NGINX configuration for syntax errors:
```bash
sudo nginx -t
```
If the test is successful, restart NGINX to apply the changes:
```bash
sudo systemctl restart nginx
```
#### Using AWS Elastic Load Balancing
**Step 1: Create Load Balancer**
1. Log in to the AWS Management Console.
2. Navigate to the EC2 Dashboard.
3. Select "Load Balancers" from the left-hand menu.
4. Click "Create Load Balancer."
5. Choose the type of load balancer (Application, Network, or Classic) and click "Create."
**Step 2: Configure Load Balancer**
1. Give your load balancer a name.
2. Configure the network mapping by selecting the VPC and subnets.
3. Set up security groups to control access.
4. Configure the listener (typically HTTP or HTTPS).
**Step 3: Add Backend Servers**
1. Under the "Target Groups" section, create a new target group.
2. Add the instances you want to include as backend servers.
3. Configure health checks to monitor the health of your instances.
**Step 4: Review and Create**
1. Review your settings.
2. Click "Create" to launch your load balancer.
## 6. Load Balancing Algorithms
### Round Robin
This is the simplest method, where each request is sent to the next server in line. This is effective for evenly distributing load across servers that have similar capabilities.
### Least Connections
This method sends requests to the server with the fewest active connections. It is useful when the load varies significantly between requests.
### IP Hash
In this method, a hash of the client's IP address is used to determine which server receives the request. This ensures that the same client is always directed to the same server.
### Weighted Round Robin
This method assigns a weight to each server based on its capacity. Servers with higher weights receive more requests.
### Least Response Time
Requests are sent to the server with the lowest average response time, ensuring faster processing of requests.
## 7. Monitoring and Maintenance
### Monitoring
Regularly monitor your load balancer to ensure it is functioning correctly. Use monitoring tools like:
- **NGINX Monitoring**: Tools like Datadog, Prometheus, and Grafana can be used to monitor NGINX performance.
- **AWS CloudWatch**: Provides detailed metrics for AWS load balancers.
### Maintenance
Regularly update and patch your load balancer to protect against vulnerabilities. Also, review and optimize your load balancing configuration to adapt to changing traffic patterns and server performance.
## Conclusion
A load balancer is a critical component for ensuring the high availability, scalability, and performance of your applications. Whether you choose a hardware, software, or cloud-based solution, understanding how to configure and maintain a load balancer is essential. By following the steps outlined in this guide, you can set up a load balancer tailored to your needs and ensure a seamless experience for your users.
Setting up a load balancer might seem complex initially, but with the right tools and knowledge, it becomes a manageable and rewarding task. Remember, the key to successful load balancing lies in regular monitoring, maintenance, and optimization. | iaadidev |
1,894,189 | Como iniciar no mundo Salesforce? | Fala galera, tudo bem? Espero que sim, esse será meu primeiro artigo aqui, então espero de coração... | 0 | 2024-06-20T01:11:19 | https://dev.to/jhownfs/como-iniciar-no-mundo-salesforce-g8i | braziliandevs, beginners, salesforce, apex | Fala galera, tudo bem? Espero que sim, esse será meu primeiro artigo aqui, então espero de coração que gostem do conteúdo, pretendo escrever mais sobre o ecossistema Salesforce e alimentá-los de muita informação.
Bom, como já percebeu iremos falar aqui de como você pode começar no mundo Salesforce tanto como desenvolvedor ou administrador, e porque eu falo MUNDO, é porque a parada é gigantesca, tem muitaaaa coisa envolvida quando se fala de Salesforce, então tem muitos papéis e nuvens diferentes para você se aventurar, e para quem está começando na carreira de desenvolvedor ou administrador, talvez esse artigo te ajude a pensar um pouco fora de tantos frameworks e tecnologias que existem aí, e ir em busca da primeira oportunidade.
**Começando**
Mas afinal, o que é Salesforce? Salesforce é o CRM (Customer relation management - gestão de relacionamento de clientes) n.º 1 do mundo, que entrega uma ferramenta completa para gerenciar o relacionamento com o cliente, possibilitando uma visão 360 desse relacionamento, habilitar decisões inteligentes durante um processo de vendas ou atendimento com Einstein IA da plataforma, jornadas de marketing customizadas e que se comunicam com o cliente no momento certo, no canal correto e com o conteúdo certo, e possibilita o omnichannel completo com suas soluções, tudo isso com muita coisa já pré-montada, objetos que já atendem diversos setores, processos e industrias.
Olha o quadrante do Gartner ai, ano após ano a Salesforce vem mantendo a liderança em CRM no mundo, e nos próximos artigos, você vai entender o motivo.
Mas a pergunta aqui é, como posso iniciar na carreia de Salesforce?
Para você que busca a primeira vaga, a primeira oportunidade, vão aqui algumas dicas importantes, que podem dar aquela mãozinha.
**1° - Treinamentos das consultorias parceiras da Salesforce**
Há muitas consultorias por aí, e sim, eu sei, muitas são bem porcaria, mas nem todas são ruins assim, uma das coisas que muitas consultorias grandes, e algumas pequenas, oferecem é um treinamento em Salesforce, um curso para quem quer entrar na área, aprendendo algo sobre a plataforma, desenvolvimento, administração, marketing, sales, etc... Muitos desses cursos vem com um bônus, quem for melhor nos testes durante o curso, irá entrar na equipe de Salesforce dentro dessa consultoria.
Olha esse programa [Start da Capgemini](https://startcapgemini.com.br), você pode escolher onde começar, gratuitamente e poderá ser contratado ao final do curso, já é uma puta mão na roda, não é?
*talvez as inscrições não estejam mais abertas na publicação desse artigo, mas acompanhe a empresa, que sempre abrem vagas.*
É sério, para quem está iniciando, começar em consultoria é uma faculdade, o que você irá aprender nela, não está inscrito...mas voltando a falar do curso, essa é a chance de você aprender sobre Salesforce (ou alguma nuvem que empresa está oferecendo), de graça, e como mencionado, com uma chance de ganhar uma vaga de trabalho, e digo mais, mesmo que você, não consiga a vaga, estará mais preparado para encarar uma próxima entrevista ou mesmo se candidatar para uma vaga.
Eu mesmo comecei assim, participei de um curso oferecido por uma dessas consultorias (gratuito), que ao final, dependendo do meu resultado, eu ganharia uma vaga de estágio, e foi o que aconteceu, passei por muitas coisas nessa consultoria, mas digo, aprendi muitas coisas nos projetos que me fizeram chegar onde estou hoje.
**2° - Participar da comunidade Salesforce**
Dentro do trailhead, existe o trailhead community, onde há uma comunidade muito forte da plataforma, diversas pessoas trocando experiências, tirando dúvidas e orientando outras pessoas das boas práticas e como resolver problemas.
Aqui é uma ótima oportunidade de fazer networking e com isso, possibilitará você a conseguir a tão preciosa, primeira oportunidade, conhecer pessoas e interagir com elas é uma forma de conseguir aquela entrevista tão desejada, quem falar que o QI não é importante, tá mentindo, mas claro que só QI não resolve, você precisa estar preparado também, minimamente preparado.
Olha essa comunidade aqui no Trailhead, voltada ao público brasileiro, massa né?
Dentro também dessas comunidades tem muitooo treinamento oferecido de graças, nomes como [Mauricio Alexandre](https://www.linkedin.com/in/dvlprbr/) e [Guilherme dornelas](https://www.linkedin.com/in/guilhermecd/), são referências em conhecimento gratuito, além de outras pessoas que também compartilham sobre Salesforce, irei criar um post especifico sobre isso.
Indico fortemente seguir esses dois rapazes, eles estão sempre dando dicas preciosas de Salesforce e treinamentos gratuítos em seus perfis, fiquem atentos.
**3° - Trailhead + Linkedin**
Vamos começar a falar de [trailhead](https://trailhead.salesforce.com), esse cara é muito importante e para quem é da área de Salesforce ou quer migrar, já digo que é essencial para aprender as coisas sobre esse ecossistema. Mas afinal o que é Trailhead, nada mais é do que a plataforma oficial e gratuita de estudos da própria Salesforce, dentro dela há diversas trilhas e módulos de aprendizado para diversas áreas e funções dentro da Salesforce, você quer ser um admin Salesforce? Tem uma trilha iniciante até o avançado para isso, quer ser um desenvolvedor? Também tem uma trilhar iniciante até o avançado lá. Gosta de marketing ou é da área e quer aprender como marketing cloud funciona? Há também uma trilhar iniciante até o avançado para você!
Dentro dessas trilhas e módulos, você poderá testar seus conhecimentos teóricos e práticos, sim a Salesforce disponibiliza ambientes práticos para você colocar a mão na massa, totalmente gratuito e com um monte de recurso, claro, como é um ambiente de estudos, ele é limitado em algumas coisas, mas certeza que você vai conseguir sair do outro lado e além de praticar o que está aprendendo, você pode expandir para diversos cenário e testar diversas features legais nesses ambientes.
Por que o linkedin está aqui? Ué, a ideia não é você estudar e consegui a primeira oportunidade? Hoje onde é a grande vitrine de profissionais? Entãoo....todo o seu progresso e aprendizado, curso, etc que você fizer para Salesforce, compartilhe no linkedin... Ganhou uma badge nova no trailhead, compartilha lá, fez um superbadge, compartilhe, isso irá gerar visibilidade e possivelmente alguma empresa que precisa de profissional Salesforce vai notas você, descobriu algo novo, seria legal compartilhar também no linkedin, não só recrutadores, mas outros envolvidos no ecossistema Salesforce, podem ver isso, e isso despertar o interesse por você, quem sabe ai você não ganha aquela entrevista?
Bom pessoal, esse foi o meu primeiro artigo, tentando ajudar um pouco quem está interessando em aprender Salesforce e ganhar a primeira oportunidade, irei fazer artigos mais específicos sobre carreiras, principalmente para quem desenvolve, então fiquem ligados.
Espero que tenham gostado, e nós vemos logo menos =D.
"Sozinho você chega lá, mais juntos chegamos mais longe ^_^" | jhownfs |
1,894,188 | Windows, fnm으로 node.js 설치 | winget install Schniz.fnm Enter fullscreen mode Exit fullscreen mode ... | 0 | 2024-06-20T01:04:33 | https://dev.to/sunj/windows-fnmeuro-nodejs-seolci-4hii | windows, fnm, node | ```
winget install Schniz.fnm
```
PowerShell에서
```
fnm env --use-on-cd | Out-String | Invoke-Expression
```
```
fnm install 설치버전
```
```
fnm use 설치버전
```
```
node -v
```
_참조 : https://blog.logrocket.com/fnm-rust-built-node-js-version-manager/_ | sunj |
1,894,187 | Effortless VM Data Security with NAKIVO and Proxmox Backup | In the realm of virtualized environments, securing data is paramount. Two powerful tools that have... | 0 | 2024-06-20T00:53:52 | https://dev.to/jeffreyboyle0033/effortless-vm-data-security-with-nakivo-and-proxmox-backup-11gn | vmbackup, dataprotection, nakivo, proxmox | In the realm of virtualized environments, securing data is paramount. Two powerful tools that have gained prominence for [safeguarding virtual machine (VM) data](https://www.wicz.com/story/50890505/simplify-vm-data-protection-with-proxmox-backup-by-nakivo) are NAKIVO Backup & Replication and Proxmox Backup Server. This article explores how integrating these technologies provides a robust, user-friendly solution for VM data security.
## Understanding the Need for VM Data Security
Virtualization has revolutionized IT infrastructure by allowing businesses to run multiple virtual machines on a single physical server. However, this consolidation of resources also brings vulnerabilities. Data loss due to hardware failure, software bugs, or cyber attacks can lead to significant disruptions. This underscores the necessity for effective backup solutions that can safeguard virtual environments efficiently.
## Introducing NAKIVO and Proxmox
NAKIVO Backup & Replication is a specialized software designed for VM backup, replication, and recovery. It supports environments such as VMware, Hyper-V, and Nutanix AHV, providing flexibility across different virtual platforms. Key features include:
**Automated Backup:** Schedule backups to occur automatically, minimizing manual oversight and reducing the risk of data loss.
**Instant Recovery:** Quickly restore entire VMs, individual files, or application objects.
**Site Recovery:** Automate disaster recovery workflows to minimize downtime in case of catastrophic events.
Proxmox Backup Server is an open-source backup solution tailored for virtual environments, focusing on Proxmox VE clusters but also capable of backing up and restoring VMs and containers. Its main features include:
**Data Deduplication:** Reduces storage needs by avoiding the duplication of identical data across backups.
**Incremental Backups:** Saves time and resources by only backing up changes since the last snapshot.
**Secure Encryption:** Ensures data privacy and security during transfer and storage with strong encryption protocols.
## Integrating NAKIVO with Proxmox
While NAKIVO provides broad support for various virtualization platforms, Proxmox excels in environments built specifically with Proxmox VE. Integrating NAKIVO with Proxmox can enhance data protection strategies by leveraging the strengths of both systems:
**Unified Management:** Use NAKIVO for overarching management of VM backups across different platforms, while utilizing Proxmox for specialized tasks within Proxmox VE environments.
**Enhanced Flexibility:** Benefit from Proxmox’s robust features for VM and container backup while using NAKIVO to ensure comprehensive data protection policies are met.
**Optimized Resources:** Combine Proxmox’s deduplication features with NAKIVO’s efficient replication and recovery capabilities to optimize bandwidth and storage utilization.
## Implementation Best Practices
To maximize the benefits of using NAKIVO and Proxmox together, consider the following best practices:
**Regular Testing:** Regularly test backup and recovery procedures to ensure they work as expected in various scenarios.
**Layered Security:** Implement additional cybersecurity measures such as firewalls, anti-virus software, and intrusion detection systems to complement the backup solutions.
**Training and Documentation:** Ensure that IT staff are well-trained in using both systems and that comprehensive documentation is available for operations related to data backup and recovery.
## Conclusion
Combining NAKIVO Backup & Replication with Proxmox Backup Server offers a seamless, efficient solution for VM data security. By leveraging these tools together, organizations can ensure their virtual environments are robustly protected against data loss, minimizing downtime and maintaining business continuity in today’s digital age. | jeffreyboyle0033 |
1,894,186 | Understanding Keywords in SEO: A Comprehensive Guide | Introduction In the vast world of Search Engine Optimization (SEO), keywords play a... | 0 | 2024-06-20T00:47:47 | https://dev.to/gohil1401/understanding-keywords-in-seo-a-comprehensive-guide-lj1 | webdev, beginners, tutorial, seo | ## Introduction
In the vast world of Search Engine Optimization (SEO), keywords play a critical role in helping search engines understand and rank your content. The strategic use of keywords can significantly enhance your website’s visibility and drive targeted traffic. This article delves into the various types of keywords and their importance in SEO.
## What is a Keyword in SEO?
A keyword in SEO is a specific word or phrase that users enter into search engines to find information. These keywords are essential because they help search engines understand the content of a webpage and match it with relevant search queries. Understanding and utilizing different types of keywords can improve your SEO strategy and increase your website’s search engine ranking.
## Types of Keywords in SEO
**1. Short-Tail Keywords**
Short-tail keywords are short and broad phrases, usually consisting of one or two words. For example, "shoes" is a short-tail keyword. These keywords have high search volumes, meaning many people are searching for them. However, they are highly competitive and less specific, making it challenging to rank high in search engine results for these terms.
**2. Long-Tail Keywords**
Long-tail keywords are longer and more specific phrases, usually consisting of three or more words. An example is "running shoes for women." While they have lower search volumes compared to short-tail keywords, they are less competitive and highly specific. This specificity helps attract a more targeted audience, increasing the chances of conversion.
**3. Navigational Keywords**
Navigational keywords are used when users want to find a specific website or page. For instance, "Facebook login" is a navigational keyword. These keywords help direct users to a particular site or page, often indicating that the user is already familiar with the brand or service they are searching for.
**4. Transactional Keywords**
Transactional keywords indicate an intent to make a purchase or complete a transaction. For example, "buy iPhone 13" is a transactional keyword. These keywords have high commercial intent and are used by users who are ready to purchase. Optimizing your content for transactional keywords can significantly increase your conversion rates.
**5. Commercial Keywords**
Commercial keywords are used by users looking to investigate brands or services with the intention of making a purchase soon. An example is "best laptops 2024." These keywords are research-based with a purchase intent, often used by users who are comparing products or services before making a decision.
**6. LSI (Latent Semantic Indexing) Keywords**
LSI keywords are related terms and phrases that search engines use to understand the content context. For instance, for the keyword "apple," LSI keywords might include "fruit," "orchard," or "cider." Using LSI keywords helps improve content relevance and context, making it easier for search engines to understand and rank your content.
**7. Singular Keywords**
Singular keywords are the singular form of a keyword, such as "dog." They are broad and general, similar to short-tail keywords. While they attract a wide audience, they are also highly competitive and less targeted.
**8. Plural Keywords**
Plural keywords are the plural form of a keyword, like "dogs." They are slightly more specific than singular keywords and may target a broader audience. Plural keywords can help attract users interested in multiple items or general information about a topic.
**9. Informational Keywords**
Informational keywords are used by users looking for information or answers to questions. For example, "how to train a puppy" is an informational keyword. These keywords are often used for blog posts, guides, and educational content. Optimizing for informational keywords can help establish your site as an authority in your niche and attract a wide audience seeking knowledge.
## How to Effectively Use Keywords in SEO:
**Keyword Research:** Use tools like Google Keyword Planner, SEMrush, and Ahrefs to find relevant keywords for your niche. Focus on a mix of short-tail, long-tail, navigational, transactional, and informational keywords.
**Content Optimization:** Integrate keywords naturally into your content, including titles, headings, meta descriptions, and body text. Avoid keyword stuffing, which can harm your SEO efforts.
**LSI Keywords:** Use LSI keywords to provide context and improve the relevance of your content. This helps search engines understand the topic and rank your content accordingly.
**User Intent:** Understand the intent behind each keyword. Create content that meets the needs of users, whether they are looking for information, ready to make a purchase, or navigating to a specific site.
**Competitor Analysis:** Analyze your competitors' keywords and content. Identify gaps and opportunities to improve your SEO strategy.
## Conclusion
Keywords are the backbone of any effective SEO strategy. Understanding the different types of keywords and how to use them can significantly enhance your website’s visibility and search engine ranking. By conducting thorough keyword research and optimizing your content accordingly, you can attract targeted traffic and achieve your SEO goals. | gohil1401 |
1,894,185 | Gummy Bottles: The Sweet and Chewy Beverage You'll Love | screenshot-1712084318540.png Gummy Bottles: The Tasty Drink You'll Adore Gummy bottles are the... | 0 | 2024-06-20T00:47:36 | https://dev.to/susan_bakerf_65f47393fdfb/gummy-bottles-the-sweet-and-chewy-beverage-youll-love-jp9 |
screenshot-1712084318540.png
Gummy Bottles: The Tasty Drink You'll Adore
Gummy bottles are the newest innovation in the world of sweet and chewy drinks, and they're taking the market by storm. Not only are they delicious and fun to eat, but they also come with numerous advantages that make them stand out from the crowd.
Features of Gummy Containers
Gummy containers are laden up with a range of benefits that produce them an option which is drink which is ideal of most ages. These include:
1. Convenience: Gummy containers are actually easy to carry around and consume on the way, making them an choice which is great busy individuals who don't have time to sit back and take in.
2. Unique Taste: Gummy containers might be found in many flavours that are different which range from fruity to sour, which are certain to please the palate.
3. Fun to consume: Kids and grownups alike enjoy the experience which is unique of on gummy bottles.
4. No Spills: With gummy bottle, you don't have to stress about spills. The packaging which is convenient to avoid any spills that are accidental messes.
Innovation at Its Best
Gummy bottles are a thinking which is definite is ahead that combines the top of both globes. They are a delicacy which is flavorsome a drink which is refreshing within one. Gummy containers certainly are a testament towards the food which is ever-evolving beverage industry. This system provides consumers with a means which is never-before-seen enjoy their favourite beverage to get most of the benefits of gummy candy.
Safety Comes First
At Gummy Bottles, we comprehend the necessity for safety when it comes to meals and beverages. We take pride in supplying just the finest-quality ingredients for the bottles which are ensure they truly are safe for usage. All our items undergo strict quality control and evaluating to ensure that they meet industry criteria and laws.
How to Use Gummy Bottles
Utilizing Gummy Bottles is really a bit of cake. Our Gummy Packaging is available in a container which is convenient this is actually an easy task to start, plus the gummy candy is easy to chew. Merely twist the limit off the container, bite and chew and then take in the beverage which is delicious. It is that facile!
Dependable, Quality Provider
Our dedication to the customers is unparalleled. We pride ourselves on providing top-notch services and products, efficient service and prompt delivery to your prospects. Our aim is always to make certain that all our clients are quite happy with their acquisitions while having an experience which is optimistic us.
Applications of Gummy Bottles
Gummy bottles can be used in several different settings being various occasions. The beach, or for a hike, gummy containers could be the perfect drink for many occasions whether you will the park. Gummy Bottles are perfect for parties so when a addition which is great kids lunches.
In conclusion, gummy bottles are an innovative and fun product that blend the best of both worlds. They're a tasty treat and a refreshing drink all in one. With a variety of flavours and a convenient bottle shape, they're perfect for people on the go, kids of all ages and anyone who loves a unique, sweet and chewy beverage. Try gummy jar today and treat yourself to a delicious and fun experience.
Source: https://www.cbdflowerpackaging.com/application/gummy-bottle | susan_bakerf_65f47393fdfb | |
1,894,184 | Cloud Computing: Principais benefícios e desafios enfrentados na adoção da computação em nuvem. | A computação em nuvem tem se tornado cada vez mais popular nas empresas de todos os tamanhos. Ela... | 0 | 2024-06-20T00:41:54 | https://dev.to/evertoncezartech/cloud-computing-principais-beneficios-e-desafios-enfrentados-na-adocao-da-computacao-em-nuvem-1184 | A computação em nuvem tem se tornado cada vez mais popular nas empresas de todos os tamanhos. Ela oferece uma série de benefícios que podem impulsionar a eficiência operacional, a escalabilidade e a inovação.
Neste artigo, discutiremos os principais benefícios da adoção da computação em nuvem e os desafios enfrentados pelas empresas nesse processo e quais são as principais ações que estão sendo adotadas para superar esses desafios.
**Benefícios da adoção da computação em nuvem.**
**Escalabilidade:** A nuvem permite que as empresas aumentem ou diminuam a capacidade de processamento e armazenamento de acordo com suas necessidades de forma rápida e flexível, sem a necessidade de investimentos em infraestrutura física, permitindo que as empresas se adaptem rapidamente a picos de demandas sazonais.
**Redução de custos:** Ao utilizar a nuvem, as empresas podem evitar gastos com aquisição e manutenção de servidores e equipamentos, além de pagar apenas pelos recursos que realmente utilizam. Isso reduz significativamente os custos de capital e permite que as empresas direcionem seus recursos financeiros para outras áreas estratégicas do negócio.
**Flexibilidade:** A computação em nuvem permite acesso aos dados e aplicativos de qualquer lugar e a qualquer momento, o que proporciona maior flexibilidade para os colaboradores e equipes de trabalho.
**Segurança:** Os provedores de nuvem investem pesadamente em medidas de segurança para proteger os dados de seus clientes. Incluindo recursos avançados de segurança, como criptografia, backups automáticos e monitoramento constante, que ajudam a proteger os dados das empresas contra ameaças.
**Confiabilidade:** A computação em nuvem oferece maior confiabilidade em comparação com as infraestruturas locais, pois os provedores de nuvem geralmente têm redundância em vários data centers, garantindo alta disponibilidade e recuperação de desastres.
**Inovação:** A computação em nuvem permite que as empresas inovem e experimentem novas ideias com mais agilidade, através da capacidade de provisionar recursos rapidamente, as equipes de desenvolvimento podem implantar e testar aplicativos com mais rapidez, acelerando o ciclo de desenvolvimento e reduzindo o time-to-market. Além disso a nuvem oferece acesso a uma ampla gama de serviços e ferramentas de inteligência artificial, aprendizado de máquina e análise de dados, que podem ser utilizados para impulsionar a inovação e a competitividade das empresas.
**Desafios na adoção da computação em nuvem**
Embora a computação em nuvem apresente muitos benefícios, ela apresenta grandes desafios que as empresas devem enfrentar ao adotá-la. Alguns dos principais desafios incluem:
**Segurança e privacidade de dados:** As empresas precisam garantir que seus dados e informações estejam adequadamente protegidos na nuvem, para evitar vazamentos ou acessos não autorizados. É essencial que as empresas implementem estratégias de segurança adequadas, como criptografia de dados, gerenciamento de identidade de acesso e monitoramento constante para garantir a proteção dos dados confidenciais.
**Integração de sistemas:** Muitas empresas já possuem sistemas legados e precisam garantir que esses sistemas possam ser integrados com as soluções em nuvem, sem causar interrupções ou perda de dados. Deve se analisar e identificar qual o melhor tipo de comunicação, se será assíncrona ou síncrona, como será tratada a observabilidade dessas integrações e qual estilo arquitetural é mais adequado.
**Disponibilidade e performance:** É importante garantir que os serviços em nuvem estejam sempre disponíveis e tenham um bom desempenho, para evitar impactos nos processos de negócio.
**Gerenciamento de custos:** Embora a computação em nuvem possa reduzir os custos operacionais, é importante gerenciar os gastos de forma eficiente. As empresas devem monitorar e otimizar o uso dos recursos em nuvem para evitar custos excessivos, isso pode envolver a implementação de políticas de uso, qual o dimensionamento adequado dos recursos e a escolha de um plano de preços mais adequados.
**Mudança cultural e treinamento:** A adoção da computação em nuvem requer uma mudança cultural nas empresas, pois envolve a adoção de novas práticas e processos de trabalho. É importante fornecer treinamento adequado aos colaboradores para que eles possam aproveitar ao máximo os recursos disponibilizados pela computação em nuvem.
**Ações para superar os desafios da computação em nuvem**
Para superar esses desafios, as empresas estão adotando algumas ações, tais como:
**Avaliação criteriosa de provedores de nuvem:** As empresas estão analisando cuidadosamente os provedores de nuvem e suas políticas de segurança, para garantir que a escolha seja a mais adequada para as necessidades da empresa.
**Implementação de estratégias de segurança:** As empresas estão investindo em soluções e práticas de segurança robustas, como criptografia de dados, autenticação de dois fatores e monitoramento constante.
**Planejamento e treinamento:** As empresas estão realizando um planejamento cuidadoso antes da migração para a nuvem, identificando possíveis desafios e capacitando seus colaboradores para lidar com as novas tecnologias.
**Monitoramento e otimização:** As empresas estão acompanhando de perto o desempenho dos serviços em nuvem e realizando ajustes para garantir uma melhor performance e disponibilidade.
**Conclusão**
A adoção da computação em nuvem oferece uma série de benefícios para as empresas, incluindo escalabilidade, redução de custos, acesso global, segurança e inovação. No entanto, também apresenta desafios como segurança dos dados, integração de sistemas, gerenciamento de custos, disponibilidade e performance, mudança cultural e treinamento dos colaboradores. Ao enfrentar esses desafios implementando de forma adequadas as ações descritas nesse artigo, as empresas podem usufruir ao máximo os benefícios da computação em nuvem impulsionando a transformação digital dentro da empresa, gerando mais lucratividade e tornando se mais competitiva no segmento que atua.
**_Everton Cezar Gonçalves_**
**Arquiteto de Software | 3x AWS Certified | AWS Black Belt Migration 2023 | Black Belt Serverless 2024 | Black Belt Generative AI and ML 2024.** | evertoncezartech | |
1,894,123 | HTMX: por que eu uso? | Nos últimos dias surgiram diversos tweets com opiniões, indicações, ou pedindo textos de referência... | 0 | 2024-06-19T23:29:44 | https://dev.to/eduardojm/htmx-por-que-eu-uso-akl | webdev, javascript, braziliandevs | Nos últimos dias surgiram diversos tweets com opiniões, indicações, ou pedindo textos de referência sobre o uso do HTMX. Optei pelo uso do HTMX em alguns projetos, inclusive em produção, e pela falta de conteúdos mostrando usos reais da biblioteca, decidi começar a escrever. Esse texto, em específico, nasceu de alguns desses questionamentos do twitter.
## Conteúdos <a name="content" />
- [Conteúdos](#content)
- [Introdução](#intro)
- [O que é o HTMX?](#o-que-e)
- [Contexto e Motivos pela escolha](#context)
- [1. Template Engine](#template-engine)
- [2. Django-Admin](#django-admin)
- [3. Autenticação e Permissão](#auth)
- [4. Funcionalidades do Django](#features)
- [5. Escopo](#scope)
- [Alguns contrapontos](#points)
- [Quer dizer, então, que agora eu só uso HTMX?](#end)
## Introdução <a name="intro" />
Esse texto foi inspirado por uma publicação do Mario Souto ([omariosouto](https://x.com/omariosouto)) no twitter ao questionar sobre a quantidade de gente indicando HTMX recentemente e se essas pessoas estavam usando HTMX em produção.
O tweet pode ser visto abaixo:
{% twitter 1803414625276305704 %}
Tenho trabalhado com HTMX (Django + HTMX, pra especificar a stack), inclusive em produção (Veja o texto [Django, Htmx e React: usando HTMX para além de TODO-Lists](https://dev.to/eduardojm/django-htmx-e-react-usando-htmx-para-alem-de-todo-lists-3amo)) e resolvi escrever esse texto para elucidar o contexto e os motivos que me levaram a decisão de usá-lo.
## O que é o HTMX? <a name="o-que-e" />
> htmx gives you access to AJAX, CSS Transitions, WebSockets and Server Sent Events directly in HTML, using attributes, so you can build modern user interfaces with the simplicity and power of hypertext
>
> Home do [htmx.org](https://htmx.org/)
Resumidamente, o HTMX é uma biblioteca JavaScript que permite que você use transições, faça requisições e coisas do tipo utilizando atributos HTML para construir interfaces modernas utilizando HTML (principalmente em servidores que renderizam HTML, como é o caso do Django).
## Contexto e Motivos pela escolha <a name="context" />
### 1. Template Engine <a name="template-engine" />
O Django é, por padrão, um framework que implementa um sistema de templates que devolve HTML para o navegador. Junto com o sistema de templates, existe um sistema de gerenciamento de arquivos estáticos.
Esse primeiro contexto é importante aqui pois ao utilizar a stack Django + HTMX, não é necessário implementar, adaptar ou configurar nenhum sistema de templates.
### 2. Django-Admin <a name="django-admin" />
O [Django-Admin](https://docs.djangoproject.com/en/5.0/ref/contrib/admin/) é uma aplicação (ou um módulo, por assim chamar), incluída junto a distribuição django e que fornece uma interface de administração fácil de ser utilizada para gerenciar os **models** criados dentro dos projetos.
A partir do item anterior, já é possível imaginar que o Django-Admin usa, fundamentalmente, templates HTML e renderização server-side (que devolve o HTML).
Em alguns casos, quando há a necessidade de alguma funcionalidade com maior dinamização dentro do django-admin é mais factível e rápido usar uma biblioteca que faça a ponte para o mesmo sistema de templates HTML que utilizar um framework ou biblioteca front-end, como o React.
### 3. Autenticação e Permissão <a name="auth" />
Assim como o conjunto de utilitários para o painel administrativo, o django traz por padrão um sistema de autenticação e permissões configurável e utilizar o HTMX remove a necessidade de inserir outros tipos de autenticação (como JWT amplamente usada para API's).
> Outro ponto relevante sobre a autenticação e permissão é que ao utilizar o Django-Admin e uma aplicação Django padrão server-side, a autenticação entre ambiente de admin e aplicação é compartilhada de forma simples, já que, na prática, é o mesmo site.
### 4. Funcionalidades do Django <a name="features" />
O Django possui facilitadores como sistema de formulários e widgets que se integram muito bem com a Template Engine e facilitam coisas como validar os dados e, consequentemente, armazenar no banco de dados.
### 5. Escopo <a name="scope" />
Tudo o que descrevi acima foi bastante decisivo para a escolha do HTMX, mas, talvez, o que tenha sido mais decisivo foram os escopos das aplicações e funcionalidades onde o HTMX foi utilizado. São escopos onde os formulários são simples, não exigiam muitas manipulações ou validações. Não existem formulários com muita complexidade (por exemplo, um formulário de cadastro de cliente onde você pode adicionar vários dependentes no cadastro, etc.).
> Mesmo que na maioria dos formulários complexos eu considere como falha de decisões, nem sempre essas decisões são dos devs.
Dados os motivos acima, ter conhecimento do framework de back-end / server-side ao qual se vai trabalhar, aliado ao HTMX, é importante para decidir se os requisitos dos formulários e outras necessidades podem, ou não, se tornar empecilhos.
## Alguns contrapontos <a name="points" />
Nem tudo são flores.
Em algumas situações é difícil fazer o que se quer fazer com a biblioteca, principalmente pela baixa quantidade, atualmente, de conteúdos.
Assim como em framework's front-end, como o react, lidar com redirecionamento de URL's pode ser bastante complexo, por exemplo pra preservar filtros em requisições via HTMX.
> Existem algumas complexidades com que eu preciso lidar que eu, no atual momento, não transfiro essa responsabilidade ao HTMX e, portanto, não irei listá-las aqui.
## Quer dizer, então, que agora eu só uso HTMX? <a name="end" />
Bem, não. Por mais que eu tenha gostado bastante do desenvolvimento com o HTMX integrado ao Django, uso em poucos projetos e, na maioria das vezes, não é a única forma de dinamização das páginas (em alguns casos é preciso utilizar bastante JavaScript Vanilla ou outras bibliotecas como o React).
Além disso, algumas aplicações com as quais trabalho continuam sendo feitas com API's Rest usando JSON e front-end's como SPA's.
Tudo depende da análise dos pontos listados acima e de contextos das necessidades do negócio, se o projeto já está em andamento, se existe time, se é um projeto que farei sozinho como freelancer, dentre outras questões. | eduardojm |
1,894,183 | Developing a Custom Content Management System with Laravel | Introduction Content Management Systems (CMS) play a vital role in the management of... | 0 | 2024-06-20T00:32:05 | https://dev.to/kartikmehta8/developing-a-custom-content-management-system-with-laravel-5ff7 | javascript, beginners, programming, webdev | ## Introduction
Content Management Systems (CMS) play a vital role in the management of digital content for websites. While there are many popular CMS options available, developing a custom CMS with Laravel has gained significant attention in recent years. Laravel is a powerful and elegant PHP framework that provides developers with the necessary tools and features to create a high-performing CMS. In this article, we will explore the advantages, disadvantages, and features of developing a custom CMS with Laravel.
## Advantages
1. **Flexibility:** Laravel provides developers with the flexibility to add custom features and functionalities as per the specific requirements of the website.
2. **Scalability:** The modular architecture of Laravel makes it easier to scale the CMS as the website grows and evolves.
3. **Enhanced Security:** Laravel offers built-in security features, such as encryption and CSRF protection, making it a secure choice for developing a CMS.
4. **User-Friendly Interface:** With Laravel, developers can create a user-friendly interface for content creators, making it easy for them to manage and update website content.
## Disadvantages
1. **Steep Learning Curve:** Laravel is a complex framework, and developers may require some time to get familiar with its features and functionalities.
2. **Requires Technical Expertise:** Developing a custom CMS with Laravel requires technical expertise and experience in PHP and web development.
## Features
1. **Routing:** Laravel offers a robust routing feature that allows developers to define the structure of the CMS and map URLs to the corresponding controllers and methods.
```php
Route::get('/posts', 'PostController@index');
```
2. **Database Migrations:** With Laravel's built-in database migrations, managing and making changes to the database structure becomes hassle-free.
```php
php artisan make:migration create_posts_table --create=posts
```
3. **Blade Templating Engine:** Laravel's blade templating engine provides developers with a simple yet powerful way to create dynamic views for the CMS.
```php
@foreach ($posts as $post)
<div>{{ $post->title }}</div>
@endforeach
```
## Conclusion
Developing a custom CMS with Laravel comes with its fair share of advantages and disadvantages. However, the benefits far outweigh the drawbacks, making it a popular choice among developers. Laravel's flexibility, scalability, and security features make it an ideal framework for creating a tailor-made CMS that caters to the unique needs of a website. With its extensive documentation and active community, Laravel provides developers with the necessary resources and support to build a robust and efficient CMS.
| kartikmehta8 |
1,894,182 | Understanding HTML5: Key Elements and Attributes | HTML5, the latest version of the Hypertext Markup Language, brings a host of new features and... | 0 | 2024-06-20T00:30:32 | https://dev.to/vidyarathna/understanding-html5-key-elements-and-attributes-5h17 | html, webdev | HTML5, the latest version of the Hypertext Markup Language, brings a host of new features and improvements designed to enhance the web development experience. Whether you're just starting out or looking to brush up on your skills, understanding these core elements and attributes is essential. Here's a guide to some of the most important aspects of HTML5.
#### Document Structure
Every HTML5 document begins with the `<!DOCTYPE html>` declaration, which ensures that the browser renders the page using the HTML5 standard. The root element is the `<html>` tag, which should include the `lang` attribute to specify the language of the document, aiding both accessibility and SEO.
The `<head>` section contains meta-information such as the document’s `<title>`, which is displayed in the browser tab. It can also include `<meta>` tags for character encoding, author information, and descriptions, as well as links to external stylesheets and scripts using the `<link>` and `<script>` tags respectively.
#### Core Content Tags
- **Headings and Paragraphs**: HTML5 provides six levels of headings (`<h1>` to `<h6>`), with `<h1>` being the most important. Regular text is organized into paragraphs using the `<p>` tag.
- **Div and Span**: The `<div>` tag is a block-level container used to group elements for styling or scripting, while `<span>` is an inline container used to style parts of the text.
- **Line Break and Horizontal Rule**: The `<br>` tag inserts a line break, and `<hr>` adds a horizontal line, typically used to separate content sections.
### Text Formatting
- **Bold and Italic**: Use `<strong>` or `<b>` to make text bold, and `<em>` or `<i>` for italics. It's important to note that while `<strong>` and `<b>` both render text in bold, they are not interchangeable. The `<strong>` tag communicates to assistive technologies that the enclosed text is of higher importance, enhancing accessibility, whereas the `<b>` tag only creates a visual change without semantic meaning. Similarly, `<em>` is used for emphasized text and is recognized by screen readers, while `<i>` merely italicizes the text.
- **Strikethrough and Preformatted Text**: The `<del>` tag strikes through text, and `<pre>` displays text in a preformatted, monospaced font, preserving whitespace and line breaks.
- **Quotes and Abbreviations**: For quotations, use `<blockquote>` for block quotes and `<q>` for inline quotes. Abbreviations are marked with `<abbr>`, providing the full term on hover.
- **Address and Code**: The `<address>` tag displays contact information, and `<code>` is used for inline code snippets.
#### Links and Images
Creating hyperlinks is essential in HTML. Use the `<a>` tag with the `href` attribute to link to other documents or sections within the same document. For images, the `<img>` tag with `src` and `alt` attributes embeds images and provides alternative text for accessibility.
#### Lists and Tables
- **Lists**: Ordered lists (`<ol>`) and unordered lists (`<ul>`) organize items into numbered or bulleted formats, with each item wrapped in an `<li>` tag. Definition lists (`<dl>`) can be used for terms and descriptions.
- **Tables**: The `<table>` tag defines a table, with `<thead>`, `<tbody>`, and `<tfoot>` grouping the header, body, and footer sections. Rows are created with `<tr>`, headers with `<th>`, and data cells with `<td>`.
#### Forms
Forms are crucial for collecting user input. The `<form>` tag encapsulates form elements, with attributes like `action` (URL to send the form data) and `method` (GET or POST). Input fields come in various types (`<input type="text">`, `<input type="email">`, etc.), and other elements like `<textarea>`, `<select>`, and `<button>` provide more complex user inputs.
#### Multimedia and Embedding
HTML5 introduces several tags for embedding multimedia content:
- **Audio and Video**: Use `<audio>` and `<video>` tags to embed audio and video files, with support for various file formats and control attributes.
- **Objects and IFrames**: The `<object>` tag can embed different types of files (PDFs, images), while `<iframe>` allows embedding external web pages within a frame.
#### New HTML5 Tags
HTML5 includes new semantic elements to better structure web pages:
- **Structural Elements**: `<header>`, `<footer>`, `<main>`, `<section>`, and `<article>` help define different parts of a web page.
- **Interactive Elements**: `<details>` and `<summary>` provide collapsible content sections, and `<dialog>` defines a dialog box.
- **Figures and Captions**: Use `<figure>` and `<figcaption>` to group images and their captions.
By understanding and utilizing these HTML5 elements and attributes, you can create well-structured, accessible, and engaging web content. Whether you’re designing a personal blog, a complex web application, or anything in between, mastering HTML5 is a foundational step in your web development journey. | vidyarathna |
1,894,175 | Saleheen Muhammad Mustak: A Visionary Creative Graphic Designer | Saleheen Muhammad Mustak: A Visionary Creative Graphic Designer Introduction Saleheen Muhammad... | 0 | 2024-06-20T00:23:17 | https://dev.to/saleheenmuhammad/saleheen-muhammad-mustak-a-visionary-creative-graphic-designer-4m4f | webdev, javascript | Saleheen Muhammad Mustak: A Visionary Creative Graphic Designer
Introduction
Saleheen Muhammad Mustak, a 25-year-old visual artist and graphic designer, has carved a unique niche for himself in the dynamic world of design. Hailing from Bhadeswar, Gulapgonj, Sylhet, Bangladesh. Saleheen’s journey is one of creativity, innovation, and relentless pursuit of excellence.
Educational Background
Saleheen is currently pursuing a Bachelor of Business Administration (BBA) Honours degree at Dhakadakshin Govt. University. His academic foundation provides him with a solid understanding of business principles, which he seamlessly integrates into his design work.
Versatility in Design
Saleheen’s versatility knows no bounds. He deftly handles various aspects of graphic design, including:
1.Social Media Design : His eye-catching social media graphics resonate with audiences, blending aesthetics with effective communication.
2.Logo Design : Saleheen crafts logos that encapsulate brand identities, leaving a lasting impression.
3.Promotional and Marketing Materials: From brochures to banners, Saleheen’s designs captivate and engage.
4.Brand Identity Design: He understands that a brand’s visual identity is its essence, and he brings it to life through thoughtful design elements.
5.Motion Graphics and Animation: Saleheen’s animations breathe life into static visuals, making them dynamic and memorable.
6.Sketching and Video Editing: His artistic flair extends beyond the digital realm, as he skillfully sketches and edits videos.
Negative Space Calligraphy: A Masterstroke
Saleheen’s claim to fame lies in his exceptional negative space calligraphy. This intricate art form involves creating letters and shapes using the space around them. His compositions are mesmerizing, evoking emotions and sparking curiosity. Whether it’s a quote, a name, or a message, Saleheen weaves magic with his calligraphy.
Educator and YouTube Influencer
Driven by a passion for sharing knowledge, Saleheen runs a popular YouTube channel. Here, he generously imparts design tips, tricks, and techniques. His tutorials cover typography, calligraphy, and other design-related topics, inspiring budding designers worldwide.
Professional Collaborations
Saleheen collaborates with marketing agencies and institutes, infusing their projects with his creative genius. His freelance work allows him to explore diverse industries, from fashion to technology. Additionally, he has contributed to television projects, showcasing his adaptability and versatility.
Connect with Saleheen
You can find Saleheen Muhammad Mustak on various platforms:
- Facebook : https://www.facebook.com/saleheenfm
- LinkedIn : https://bd.linkedin.com/in/saleheenmuhammadmustak
- Pinterest : https://www.pinterest.com/saleheenmuhammad
- DeviantArt : https://www.deviantart.com/saleheenmuhammad
- Behance : https://www.behance.net/saleheenmr7
- YouTube : https://m.youtube.com/@Saleheenfm
- Instagram : https://www.instagram.com/saleheenmuhammadmustak
- Bio : https://saleheenmr7.blogspot.com
In a world where design is constantly evolving, Saleheen Muhammad Mustak stands out as a visionary who pushes boundaries and inspires others. His journey is a testament to the power of creativity and dedication. | saleheenmuhammad |
1,895,243 | How to integrate Tabler Icons into your Phoenix project | Table of Contents 1. Introduction 2. Tracking the Tabler Icons source repository 3.... | 0 | 2024-06-25T16:47:45 | https://farens.me/blog/how-to-integrate-tabler-icons-into-your-phoenix-project | phoenix, tailwindcss, tablericons | ---
title: How to integrate Tabler Icons into your Phoenix project
published: true
date: 2024-06-20 00:00:00 UTC
tags: Phoenix,TailwindCSS,TablerIcons
canonical_url: https://farens.me/blog/how-to-integrate-tabler-icons-into-your-phoenix-project
---
## Table of Contents
1. [Introduction](#introduction)
2. [Tracking the Tabler Icons source repository](#tracking-the-tabler-icons-source-repository)
3. [Updating the Tailwind CSS config](#updating-the-tailwind-css-config)
3.1. [Reading the SVG files](#reading-the-svg-files)
3.2. [Generating the CSS classes](#generating-the-css-classes)
4. [Remove width and height from the SVG](#remove-width-and-height-from-the-svg)
5. [Build an icon component](#build-an-icon-component)
6. [Conclusion](#conclusion)
7. [Credits](#credits)
[Tabler Icons](https://tablericons.com/) is one of the most popular icon libraries. This article shows how to integrate the icon library into Phoenix projects. We will track the Tabler Icons source repository using Mix and use the Tailwind CSS plugin feature to create an icon component.
## Introduction
In almost every web application you will need icons to represent different actions or states. There are many icon libraries available, but one of the most popular is Tabler Icons. Tabler Icons is a set of over 5000 free, MIT-licensed, high quality SVG icons. The icons are maintained by [Paweł Kuna](https://twitter.com/codecalm) and come in two versions: filled and outlined.
This article shows how to integrate Tabler Icons into an existing Phoenix project.
## Tracking the Tabler Icons source repository
The first step is to track the Tabler Icons source repository using Mix. This will allow us to easily update the icons in our project when new icons are added or existing icons are updated.
To track the Tabler Icons source repository, we need to add the following to the `deps` function in the `mix.exs` file:
```elixir
{:tabler_icons, github: "tabler/tabler-icons", sparse: "icons", app: false, compile: false}
```
This will add the Tabler Icons repository as a dependency to our project. The `sparse` option is used to only download the `icons` directory from the repository. We set `app` to `false` because we don't want to read the app file. We also set `compile` to `false` because we don't want to compile the icons. We just want to download the icons so we can use them later in our Tailwind CSS config.
If you have not seen the above options before, you can find a detailed explanation of them in the [Mix documentation](https://hexdocs.pm/mix/1.17.1/Mix.Tasks.Deps.html).
After adding the dependency, we need to run `mix deps.get` to download the icons from the Tabler Icons repository. The icons will be downloaded to the `deps/tabler_icons/icons` directory.
## Updating the Tailwind CSS config
Next, we need to update the`tailwind.config.js`. We create a custom plugin that generates the CSS classes for the icons.
### Reading the SVG files
The first step is to make the plugin read the SVG files from the `deps/tabler_icons/icons` directory.
```js
module.exports = {
// ...
plugins: [
plugin(function () {
const iconsDir = path.join(__dirname, "../deps/tabler_icons/icons")
const values = {}
const icons = [
["", "/outline"],
["-filled", "/filled"],
]
icons.forEach(([suffix, dir]) => {
fs.readdirSync(path.join(iconsDir, dir)).forEach(file => {
const name = path.basename(file, ".svg") + suffix
values[name] = { name, fullPath: path.join(iconsDir, dir, file) }
})
})
})
]
}
```
The above code reads the SVG files from the `deps/tabler_icons/icons` directory and creates an object with the icon names and their full paths. This way, we can easily reference the icons later.
The `values` object will look like this:
```js
{
"user": { name: "user", fullPath: "/path/to/deps/tabler_icons/icons/outline/user.svg" },
"user-filled": { name: "user-filled", fullPath: "/path/to/deps/tabler_icons/icons/filled/book.svg" },
// ...
}
```
We append the suffix `-filled` to filled icon names to distinguish between the filled and outlined versions of the icons. Since outline should be the default, we don't append any suffix to the outline icons.
### Generating the CSS classes
Next, we need to get the plugin to generate the CSS classes for the icons. We want to add the CSS for elements that contain a `hero-*` class. For example, if we have an element with a `hero-user` class, we want to add the CSS for the user icon. To do this, we use the `matchComponent` function provided by Tailwind CSS.
```js
module.exports = {
// ...
plugins: [
plugin(function ({ matchComponents, theme }) {
const values = {}
// read icons and add to values object
matchComponents({
"tabler": ({ name, fullPath }) => {
const content = fs.readFileSync(fullPath).toString().replace(/\r?\n|\r/g, "")
return {
[`--tabler-${name}`]: `url('data:image/svg+xml;utf8,${content}')`,
"-webkit-mask": `var(--tabler-${name})`,
"mask": `var(--tabler-${name})`,
"mask-repeat": "no-repeat",
"background-color": "currentColor",
"vertical-align": "middle",
"display": "inline-block",
"width": theme("spacing.5"),
"height": theme("spacing.5")
}
}
}, { values })
})
]
}
```
This code matches items with the `tabler-*`. It extracts the name and full path of the icon from the `values` object created earlier. It then reads the contents of the SVG file and generates the CSS classes for the icon. The CSS classes set the icon as the element's background image and set the width and height of the element to `theme("spacing.5")`. This way, we can easily control the size of the icons using Tailwind's CSS spacing utilities.
## Remove width and height from the SVG
The icons provided by the Tabler Icons library have width and height attributes set in the SVG files. We need to remove these attributes so that we can control the size of the icons using Tailwind CSS.
We already have a regex that removes all line breaks and carriage returns from the path string. We can extend this to also remove the width and height attributes from the SVG files.
```js
const content = fs.readFileSync(fullPath).toString()
.replace(/\r?\n|\r/g, "")
.replace(/width="[^"]*"/, "")
.replace(/height="[^"]*"/, "");
```
The final plugin code will look like this:
```js
module.exports = {
// ...
plugins: [
plugin(function ({ matchComponents, theme }) {
const iconsDir = path.join(__dirname, "../deps/tabler_icons/icons")
const values = {}
const icons = [
["", "/outline"],
["-filled", "/filled"],
]
icons.forEach(([suffix, dir]) => {
fs.readdirSync(path.join(iconsDir, dir)).forEach(file => {
const name = path.basename(file, ".svg") + suffix
values[name] = { name, fullPath: path.join(iconsDir, dir, file) }
})
})
matchComponents({
"tabler": ({ name, fullPath }) => {
const content = fs.readFileSync(fullPath).toString()
.replace(/\r?\n|\r/g, "")
.replace(/width="[^"]*"/, "")
.replace(/height="[^"]*"/, "");
return {
[`--tabler-${name}`]: `url('data:image/svg+xml;utf8,${content}')`,
"-webkit-mask": `var(--tabler-${name})`,
"mask": `var(--tabler-${name})`,
"mask-repeat": "no-repeat",
"background-color": "currentColor",
"vertical-align": "middle",
"display": "inline-block",
"width": theme("spacing.5"),
"height": theme("spacing.5")
}
}
}, { values })
})
]
}
```
## Build an icon component
Now that we have the CSS classes for the icons ready, we can create an icon component that makes it easy to use the icons in our Phoenix project.
```elixir
defmodule MyAppWeb.CoreComponents do
use Phoenix.Component
attr :name, :string, required: true
attr :class, :string, default: nil
def icon(%{name: "tabler-" <> _} = assigns) do
~H"""
<span class={[@name, @class]} />
"""
end
end
```
This component takes the name of the icon as an argument and renders a `span` element with the icon name as a class. We also allow the user to pass additional classes.
We can use this component in our templates like this:
```elixir
<.icon name="hero-user" class="bg-blue-600" />
```
Tailwind CSS will generate the appropriate CSS classes for the icon based on the plugin we built in the previous step, and the icon will be displayed with a blue background.
## Conclusion
In this article, we have shown how to integrate Tabler Icons into a Phoenix project. We tracked the Tabler Icons source repository using Mix, built an icon component that makes it easy to use the icons in markup, and used the Tailwind CSS plugin feature to add the appropriate CSS.
## Credits
I would like to credit the Phoenix team for the inspiration for this article. They are already using the same approach to integrate [Heroicons](https://heroicons.com/) into Phoenix projects. I just adapted it to work with Tabler Icons. | farens |
1,893,009 | Domain Driven Design (DDD) with stakeholders: using content production contracting as an example | In my previous article, I focused on the development part of DDD, but this time I would like to delve... | 0 | 2024-06-19T23:50:47 | https://dev.to/ma2mori/domain-driven-design-ddd-with-stakeholders-using-content-production-contracting-as-an-example-526a | ddd, architecture | In [my previous article](https://dev.to/ma2mori/domain-driven-design-ddd-practice-live-streaming-app-example-3dih), I focused on the development part of DDD, but this time I would like to delve into the preliminary part. So, using the business challenges of a fictitious company as an example, we will consider how to understand the business process and how to leverage the knowledge of experts to build a system.
## Step 0: How the Project Begins
### Voices of Employees
A content production company was experiencing inefficiencies in its contract-related operations. Below are some specific comments from the field:
1. **Content Producer's Voice**.
- "Every time I sign a contract, I have to explain it in person, which makes it hard for me to focus on other creative tasks."
- "Negotiating contracts with performers takes a lot of time, which often delays the delivery schedule."
2. **Voice of the Legal Team**
- "I spend a lot of time drafting and reviewing contracts, which interferes with my other work."
- "We don't have enough storage space for paper contracts, and it's hard to find past contracts."
3. **Contractor (Performer) Comments**.
- "In-person contract explanations are not always scheduled and it takes a long time to get a contract signed."
- "It is burdensome to make multiple visits to sign or revise contracts."
### Project Background and Objectives
As these problems accumulated, employee overtime increased and overall company efficiency declined. To improve the situation, a project was launched to systemize contract-related operations. The objectives are as follows:
- **Increase efficiency**: Streamline the process of creating, reviewing, and storing contracts to reduce the burden on employees.
- **Time Reduction**: Reduce the amount of time required to close a contract by reducing the number of in-person contract explanations.
- **Reduce Costs**: Reduce storage space for paper contracts and lower administrative costs.
---
## Step 1: Gather all interested parties
### Selecting and Convening Stakeholders
Gather all stakeholders involved in the project. Specifically, convene the parties involved in the following roles:
- **Content Producer**: Determine the content and decide what items are required in the contract.
- **Legal team**: drafts contracts and performs legal checks.
- **IT Engineer**: responsible for designing and developing the system.
### Organize a workshop
The next step is to bring these experts together for a workshop. The purpose of the workshop is for each person to explain his or her work and to deepen mutual understanding.
---
## Step 2: Discuss business processes one at a time
### Identify current processes
Identify current business processes. Specific processes may include the following:
1. **Content creator** determines the content and decides what items are required in the contract (performance fee, duration of distribution, content of performance).
2. the **legal team** prepares a contract based on this information
3. the **contractor** reviews the contract and decides whether or not to sign it.
4. **Legal team** checks and keeps the signed contract.
### Identifying Problems
Identify problems in the current process. For example:
- Explaining and signing contracts in person takes time.
- Space is needed for paper storage of contracts.
- It is difficult to revise the contract if it is incomplete.
---
## Step 3: Create an Entity and Interaction Diagram
### Identifying Entities
Identify the key entities involved in the business process. The following entities are considered here:
- **Content**: Information about the work or program to be produced.
- **Contract**: A document that describes the fee for the performance and the duration of the distribution.
- **Performer**: The person who is the subject of the contract.
- **Legal team**: prepares and manages the contract.
### Create an illustration of entouragement
---
## Step 4: Identify bounded contexts
### Identifying different concepts with the same name
If the term "contract" refers to both the legal team's working document and the final document that the performer signs, distinguish between them.
### Defining Contexts
Define which context each entity belongs to. This makes it clear that entities with the same name have different roles. For example:
---
## Step 5: Record the model as a living document
### Recording the model
Record the model as a document based on the entity and interaction diagrams you have created. This model will serve as a living document of the system and will be continuously updated.
### Examples of documents to be recorded
1. **Ubiquitous Language Dictionary** 2.
2.**Entity Diagram** 3.
3.**Context map** 4.
4. **sequence diagram**
- **Specific examples**:
### Save to shared space
Save models to a shared space and make them accessible to the entire team. This allows you to work with the most up-to-date model at all times.
---
## Step 6: Develop Budget and Schedule
### Develop a budget
Develop a budget for system development. Factors to consider include:
- **Development Costs**: IT engineer labor costs, software licensing costs, etc.
- **Hardware costs**: server and cloud service costs.
- **Testing**: Cost of building the testing environment and conducting the testing.
### Schedule Development
Develop a schedule for the project. The plan is divided into the following phases:
- **Requirement Definition**: Confirm business process and determine system requirements.
- **Design**: System architecture design and modeling.
- **Development**: System implementation.
- **Testing**: Testing and modifying the system.
- **Release**: Deployment and implementation of the system.
---
## Step 7: Convert the model to a system
### Transition to System Development
Actual development is performed based on the model you have created. Possible required functions include the following:
- **Content data registration and editing function**: Content creators can register and edit content information.
- **Contract creation function**: Legal team can automatically generate contracts.
- **Interface with e-signature service**: Allows subscribers to sign contracts online.
- **Contract Alert Function**: Notification when a contract is not completed.
**Sequence diagram after system migration**.
### Testing and Deployment
Once development is complete, test and deploy the system to ensure there are no problems.
## Summary
This article has described the specific steps in DDD before moving on to development; the essence of DDD is to understand the business process in depth and to systematically leverage the knowledge of experts to build a model. Through this process, we felt that we have the potential to design a system that is not just a technical solution, but one that fundamentally solves a business problem. I would like to continue learning to create more valuable software. | ma2mori |
1,894,125 | 👨💻neofetch is archived: what's next for terminal lovers? | I've been using neofetch since I don't know when but I always like of being extremely... | 0 | 2024-06-19T23:29:11 | https://dev.to/girordo/neofetch-is-archived-whats-next-for-terminal-lovers-342j | terminal, cli, tools, devops | I've been using neofetch since I don't know when but I always like of being extremely customizable.
This reminded me of when `null-ls` for Neovim was archived. It's a bittersweet reminder that things, even software, don't last forever.
I don't like to think of software as "dead." Instead, it's a chance to find new tools that can fill the gap. According to the Awesome Fetch repo, here are some of the best alternatives to Neofetch.
I don't like to consider the software dead (because this doesn't exists, I guess) but we need to have new cli tools to replace neofetch
Accordinly to Awesome Fetch, these are the most starred repos for fetch tools.
## Fastfetch
[**Fastfetch**](https://github.com/fastfetch-cli/fastfetch) is a speedy and efficient alternative. It provides quick system information without sacrificing the detail we love.
## screenFetch
[**screenFetch**](https://github.com/KittyKatt/screenFetch) is a simple Bash script that displays your system info alongside a cool ASCII logo of your OS. It’s easy to customize with options for colors, no ASCII art, and even taking screenshots right from the terminal. Perfect for those slick terminal screenshots everyone loves to share!
## cpufetch
[**cpufetch**](https://github.com/Dr-Noob/cpufetch) focuses on showing off your CPU details in a clean and stylish way. It’s perfect for when you want to highlight your processor specs in a neat little package.
## macchina
[**macchina**](https://github.com/Macchina-CLI/macchina) is all about being fast, minimal, and customizable. It gives you a sleek overview of your system's specs with plenty of options to tweak things to your liking. If you’re looking for something quick and simple, this might be the tool for you.
## HyFetch
[**HyFetch**](https://github.com/hykilpikonna/hyfetch) is a colorful alternative that adds pride flag colors to your system info. It’s a fun and inclusive way to spice up your terminal while still getting all the details you need.
Even though Neofetch is archived, it’s a great opportunity to try out some new tools and keep your terminal looking awesome. Whether you’re after speed, simplicity, or just a splash of color, there’s something here for everyone!
---
**Inspired by:**
- [Neofetch alternatives](https://itsfoss.com/neofetch-alternatives/)
- [Awesome Fetch on GitHub](https://github.com/beucismis/awesome-fetch)
Photo by <a href="https://unsplash.com/@lukash?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Lukas</a> on <a href="https://unsplash.com/photos/a-computer-screen-with-a-program-running-on-it-NLSXFjl_nhc?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Unsplash</a>
<p align="center"><em>This article was crafted and tailored with ChatGPT help.</em> 🤖💡</p> | girordo |
1,894,128 | Understanding Flash Loans in DeFi | In the realm of decentralized finance (DeFi), opportunities often arise that demand swift action to... | 0 | 2024-06-19T23:28:06 | https://dev.to/passandscore/understanding-flash-loans-in-defi-33n6 |
In the realm of decentralized finance (DeFi), opportunities often arise that demand swift action to capitalize on them. One such opportunity is arbitrage: when a token on Dex A can be bought at a lower price than it's being sold for on Dex B, there's potential for significant profit, which scales with the capital at your disposal. In traditional finance, this kind of opportunity is typically reserved for the wealthy. However, DeFi enables broader access, allowing anyone to leverage flash loans to momentarily become a major player in the market.
A flash loan enables borrowing from a liquidity pool without collateral. This means you can access funds beyond your current holdings to exploit arbitrage opportunities and potentially reap substantial gains in a single transaction.
## How does it work?
Liquidity in DeFi pools is provided by liquidity providers who deposit funds to earn profits from transaction fees. Standard pools charge fees per token swap, while those offering flash loans charge fees per loan. Liquidity providers receive pool tokens representing their share and can withdraw their funds, plus fees, at any time.
Once funds are available, users can initiate loans. The sole requirement for withdrawing a loan is to return the borrowed funds plus fees to the contract within the same transaction. Failure to do so will revert the transaction, maintaining the network's unchanged state.
With funds now in their possession, users can utilize them as needed. To capitalize on arbitrage opportunities, users purchase tokens on Dex A using the loaned amount. Subsequently, they sell these tokens on Dex B at a higher value. Finally, users repay the loan plus fees to the flash loan contract, keeping the profit generated from the opportunity.
### Are flash loans a vulnerability?
Flash loans themselves are not vulnerabilities. Instead, they are a feature provided by decentralized finance (DeFi) protocols that allow users to borrow assets without collateral as long as the borrowed amount is returned within the same transaction. However, flash loans can be used by attackers to exploit vulnerabilities or weaknesses in smart contracts or protocols.
### Flash loan attacks
Arbitrage, though not inherently malicious, can be perceived as an exploit since it leverages price discrepancies across decentralized exchanges. However, flash loan attacks are a genuine concern and have led to substantial financial losses.
### **Flash Loan Attack Types:**
- **Arbitrage:** Attackers can exploit price discrepancies between different decentralized exchanges (DEXs) using flash loans for arbitrage trades. Though not always malicious, this can result in losses for legitimate traders.
- **Price manipulation:** Attackers can use flash loans to manipulate cryptocurrency prices by artificially inflating or deflating their value, leading to significant losses for traders with orders based on these distorted prices.
- **Smart contract exploits:** Attackers can exploit vulnerabilities in DeFi smart contracts, such as reentrancy bugs or integer overflow errors, using flash loans. This allows them to steal funds from the protocol or carry out other attacks.
### **Real-World Cases Of Flash Loan Attacks**
1. Balancer: $2.5 million (August 2023)
2. Curve Finance: $70 million (July 2023)
3. Euler Finance: $197 million (March 2023)
4. Cream Finance: $130 million (October 2021)
5. Harvest Finance: $34 million (October 2020)
### **Prevent Flash Loan Attacks**
- **Reentrancy Guards:** Implement reentrancy guards to prevent functions from being called repeatedly in the same transaction.
- **Decentralized Oracles:** Use decentralized price oracles (e.g., Chainlink) that aggregate data from multiple sources to resist manipulation.
- **Conduct Thorough Audits:** Regularly audit smart contracts with reputable security firms to identify and fix vulnerabilities.
### Practical Examples
1. **Aave:** Uses time-weighted average price (TWAP) oracles and strict liquidation policies to minimize the risk of price manipulation via flash loans.
2. **Compound:** Employs decentralized oracles and collateralization mechanisms to reduce the impact of flash loan attacks.
3. **Uniswap:** Incorporates TWAP and decentralized pricing mechanisms to mitigate price manipulation risks.
4. **Synthetix:** Implements multi-sig governance for critical updates and relies on decentralized oracles for price feeds.
5. **Balancer:** Uses circuit breakers and multi-sig approvals for critical changes to prevent rapid, unauthorized changes in the protocol.
### Final Thoughts
I view flash loans as a tool that opens access to opportunities in DeFi, enabling any user to capitalize on opportunities that would otherwise be inaccessible. While malicious actors can exploit flash loans to target protocols, these risks can be mitigated. The greatest advantage of DeFi is the ability to create innovative tools like flash loans and continually adapt the ecosystem to reduce the likelihood of exploits.
**Connect with me on social media:**
- [X](https://x.com/passandscore)
- [GitHub](https://github.com/passandscore)
- [LinkedIn](https://www.linkedin.com/in/jason-schwarz-75b91482/) | passandscore | |
1,894,126 | The First: D&A for beginners | ‘First post here !’ "Do you like data and analytics? Or do you want to learn the essentials to apply... | 0 | 2024-06-19T23:25:19 | https://dev.to/camila_arruda_ec496aeea5c/the-first-da-for-begginers-135i | data, analytics, analyticsbydesign, scrum | ‘First post here !’
"Do you like data and analytics? Or do you want to learn the essentials to apply in your daily work at your company? Favorite my website!"
[](https://daguiadebolso-iwurln7.gamma.site/)
https://daguiadebolso-iwurln7.gamma.site/
 | camila_arruda_ec496aeea5c |
1,894,124 | UploadThing: Simplificando o Processo de Upload de Arquivos na Web | Em um mundo cada vez mais digital, a necessidade de compartilhar e armazenar arquivos de forma... | 0 | 2024-06-19T23:22:35 | https://dev.to/iamthiago/uploadthing-simplificando-o-processo-de-upload-de-arquivos-na-web-kek | javascript, typescript, nextjs | Em um mundo cada vez mais digital, a necessidade de compartilhar e armazenar arquivos de forma eficiente é essencial. Ferramentas que simplificam o processo de upload e gerenciamento de arquivos tornam-se cada vez mais valiosas para desenvolvedores e empresas. Uma dessas ferramentas que tem ganhado destaque é o **UploadThing**.
## O que é o UploadThing?
O **UploadThing** é uma plataforma projetada para facilitar o processo de upload de arquivos em aplicações web. Com uma interface intuitiva e recursos robustos, ele se destaca por sua facilidade de integração e uso. A plataforma permite que desenvolvedores integrem rapidamente funcionalidades de upload de arquivos em seus projetos, economizando tempo e esforço.
## Principais Funcionalidades do UploadThing
1. **Integração Simples**: A integração do UploadThing em aplicações web é extremamente fácil, graças à sua documentação clara e detalhada. Com poucos passos, você pode ter um sistema de upload de arquivos funcionando perfeitamente.
2. **Suporte a Múltiplos Tipos de Arquivo**: O UploadThing suporta uma ampla variedade de formatos de arquivo, desde imagens e documentos até vídeos e arquivos comprimidos. Isso garante que você possa usar a plataforma para diferentes necessidades de upload.
3. **Segurança e Privacidade**: A segurança dos dados é uma prioridade para o UploadThing. A plataforma implementa medidas rigorosas para garantir que os arquivos sejam transferidos e armazenados de forma segura.
4. **Escalabilidade**: Independentemente do tamanho do seu projeto, o UploadThing é capaz de lidar com grandes volumes de dados sem comprometer o desempenho. Isso é particularmente útil para aplicações que esperam um alto tráfego de uploads.
5. **Interface de Usuário Amigável**: A plataforma oferece uma interface de usuário intuitiva, facilitando a interação tanto para desenvolvedores quanto para usuários finais.
## Como Começar com o UploadThing
Para começar a usar o UploadThing, você pode seguir alguns passos simples:
1. **Registro**: Crie uma conta na plataforma UploadThing.
2. **Configuração**: Siga a documentação para configurar o serviço no seu projeto. Isso geralmente envolve a inclusão de algumas linhas de código e a configuração de chaves de API.
3. **Testes**: Realize testes para garantir que o sistema de upload está funcionando conforme o esperado.
4. **Implementação**: Integre a funcionalidade de upload em sua aplicação web e comece a usufruir das vantagens do UploadThing.
## Exemplo Prático
Aqui está um exemplo básico de como você pode integrar o UploadThing em uma aplicação usando JavaScript:
```javascript
const uploadInput = document.getElementById('uploadInput');
const uploadButton = document.getElementById('uploadButton');
uploadButton.addEventListener('click', async () => {
const file = uploadInput.files[0];
if (file) {
try {
const response = await fetch('https://api.uploadthing.com/upload', {
method: 'POST',
body: file,
headers: {
'Authorization': 'Bearer YOUR_API_KEY'
}
});
const result = await response.json();
console.log('Upload bem-sucedido:', result);
} catch (error) {
console.error('Erro no upload:', error);
}
} else {
alert('Por favor, selecione um arquivo para fazer o upload.');
}
});
```
## Conclusão
O UploadThing é uma solução poderosa e versátil para quem busca simplificar o processo de upload de arquivos em aplicações web. Com uma configuração rápida e funcionalidades robustas, ele se torna uma escolha ideal para desenvolvedores que desejam integrar essa funcionalidade de maneira eficiente.
Se você está interessado em explorar mais sobre soluções tecnológicas e desenvolvimento web, recomendo conferir o trabalho do **Thiago** no GitHub: [IamThiago-IT](https://github.com/IamThiago-IT). Ele compartilha diversos projetos e insights valiosos que podem ajudar a aprimorar suas habilidades como desenvolvedor.
Experimente o UploadThing e veja como ele pode transformar a maneira como você gerencia uploads em suas aplicações. | iamthiago |
1,894,120 | Day 974 : Do It Right | liner notes: Professional : Sigh.... more visa stuff. haha Had a couple of meetings. Responded to a... | 0 | 2024-06-19T23:15:22 | https://dev.to/dwane/day-974-do-it-right-mpd | hiphop, code, coding, lifelongdev | _liner notes_:
- Professional : Sigh.... more visa stuff. haha Had a couple of meetings. Responded to a couple of community questions. Did some more refactoring of a project.
- Personal : Went through a bunch of tracks for the radio show. Picked out the projects I'm going to pick up on Bandcamp this week. Looked at some properties. Did some work on the logo for my side project. Also started a proof of concept for the View Transitions API for Multi-page Applications. It's pretty cool.
Going to pick up the projects I picked last night on Bandcamp and prepare the social media posts. Going to place a sweatshirt order for a radio show listener. Really need to finalize this logo. Going to try another version. I want to make sure I do it right! haha Going to eat and get to work.
Have a great night!
peace piece
Dwane / conshus
https://dwane.io / https://HIPHOPandCODE.com
{% youtube p3jgei-Z0Vk %} | dwane |
1,894,119 | Infinite Scroll in Nextjs and typescript | After a couple of days I finally was able to achieve an infinite scroll on my project. Here is yet... | 0 | 2024-06-19T23:14:39 | https://dev.to/romkev/infinite-scroll-in-nextjs-and-typescript-5a6k | nextjs, nestjs, webdev, fullstack | After a couple of days I finally was able to achieve an infinite scroll on my project. Here is yet another time saving snippet that you can use to achieve the same in a shorter time frame. As usual this is not a tutorial but a quick post to help a fellow developer save time on implementing an infinite scroll. You'll have to edit the code to fit the needs of your project.
I am using nextUI for the frontend components.
First we'll create a dummy user object
```
interface User {
id: number;
name: string;
}
```
Then I create a function to generate dummy data to populate the users array with user objects.
```
const generateDummyData = (start: number, count: number): User[] => {
return Array.from({ length: count }, (_, i) => ({
id: start + i,
name: `User ${start + i + 1}`,
}));
};
```
Time to implement a function called loadMoreUsers to fetch and append more user data as one scrolls down the page. I have simulated an api call time delay of 2 seconds.
```
const loadMoreUsers = async () => {
if (loading || page >= 10) return;
setLoading(true);
await new Promise((resolve) => setTimeout(resolve, 2000)); // Simulate 2-second delay
const newUsers = generateDummyData(page * 10, 10);
setUsers((prevUsers) => [...prevUsers, ...newUsers]);
setPage((prevPage) => prevPage + 1);
setLoading(false);
};
```
Next step is to use useEffect to load initial user data when the component mounts and to handle scrolling to load more users...
```
useEffect(() => {
if (!initialized.current) {
initialized.current = true
loadMoreUsers();
}
}, []);
useEffect(() => {
const handleScroll = () => {
if (
window.innerHeight +
Math.max(
window.pageYOffset,
document.documentElement.scrollTop,
document.body.scrollTop
) >
document.documentElement.offsetHeight - 100
) {
if (page < 10 && page > 0) {
loadMoreUsers();
}
} else {
return;
}
};
```
Lastly we add an event listener for the scrollbar...
```
window.addEventListener('scroll', handleScroll);
return () => window.removeEventListener('scroll', handleScroll);
}, [page, loading]);
```
That's it. Below is the full script...You can save it as a seperate file in the utils or components and simply import it to your project.
```
import { Card, CardBody,Spinner,Button } from '@nextui-org/react';
import { useEffect, useState, useRef } from 'react';
interface User {
id: number;
name: string;
}
const generateDummyData = (start: number, count: number): User[] => {
return Array.from({ length: count }, (_, i) => ({
id: start + i,
name: `User ${start + i + 1}`,
}));
};
const UserListPage = () => {
const [users, setUsers] = useState<User[]>([]);
const [loading, setLoading] = useState(false);
const [page, setPage] = useState(0);
const initialized = useRef(false)
const loadMoreUsers = async () => {
if (loading || page >= 10) return;
setLoading(true);
await new Promise((resolve) => setTimeout(resolve, 2000)); // Simulate 2-second delay
const newUsers = generateDummyData(page * 10, 10);
setUsers((prevUsers) => [...prevUsers, ...newUsers]);
setPage((prevPage) => prevPage + 1);
setLoading(false);
};
useEffect(() => {
if (!initialized.current) {
initialized.current = true
loadMoreUsers();
}
}, []);
useEffect(() => {
const handleScroll = () => {
if (
window.innerHeight +
Math.max(
window.pageYOffset,
document.documentElement.scrollTop,
document.body.scrollTop
) >
document.documentElement.offsetHeight - 100
) {
if (page < 10 && page > 0) {
loadMoreUsers();
}
} else {
return;
}
};
window.addEventListener('scroll', handleScroll);
return () => window.removeEventListener('scroll', handleScroll);
}, [page, loading]);
return (
<div>
{users.map((user) => (
<Card key={user.id}>
<CardBody>
<p>{user.name}</p>
</CardBody>
</Card>
))}
{loading ? (<Spinner />) : (<Button onClick={loadMoreUsers}>Load more</Button> )}
</div>
);
};
export default UserListPage;
```
That's it folks....Now you can proceed to the other interesting parts of your project. Once I implement the api version I shall share as well
| romkev |
1,894,118 | amna 2 | TODAY SHOW MY SEVEN HERBAL... | 0 | 2024-06-19T23:09:58 | https://dev.to/mckinney_cothran_d91b8663/amna-2-4idi | {% embed https://youtu.be/JixNFC29eWs?si=2oEKm7t6EznXYw9g %} | mckinney_cothran_d91b8663 | |
1,894,117 | amna 1 | TODAY I GIVE REVIEW ON... | 0 | 2024-06-19T23:07:31 | https://dev.to/mckinney_cothran_d91b8663/amna-1-ecf | {% embed https://youtu.be/dRaAirc9sYM?si=3cg0XrCruHQu8bpK %} | mckinney_cothran_d91b8663 | |
1,894,116 | amna 4 | LADIES EYE SHADE KIT FOR... | 0 | 2024-06-19T23:04:17 | https://dev.to/mckinney_cothran_d91b8663/amna-4-3i88 | {% embed https://youtu.be/nrGCdVIgrDs?si=ILXmlQPaqvV4nENn %} | mckinney_cothran_d91b8663 | |
1,894,115 | amna 3 | BEAUTY FACE MATE POWDER... | 0 | 2024-06-19T22:59:01 | https://dev.to/mckinney_cothran_d91b8663/amna-3-c5a | {% embed https://youtu.be/5pp9xXQBtwQ?si=2-3wzOqbkYKb7UHW %} | mckinney_cothran_d91b8663 | |
1,894,114 | amna 2 | A post by Mckinney Cothran | 0 | 2024-06-19T22:58:39 | https://dev.to/mckinney_cothran_d91b8663/amna-2-1ma6 | [](https://youtu.be/JixNFC29eWs?si=9M_qd6OhqaFAXq5u) | mckinney_cothran_d91b8663 | |
1,894,113 | Laravel 11 Changes | Here are the changes that has happened in Laravel... | 0 | 2024-06-19T22:58:15 | https://dev.to/msnmongare/laravel-11-changes-1149 | laravel, webdev, beginners, programming | Here are the changes that has happened in Laravel 11
[
https://rezakhademix.medium.com/laravel-11-no-http-kernel-no-casts-no-console-kernel-721c62adb6ef](url) | msnmongare |
1,893,883 | React: Prevent UI Blocking from Busy Logic Using Web Workers API | I recently received a task from a company I applied to that I had to implement the socket server... | 0 | 2024-06-19T22:57:54 | https://dev.to/lico/react-prevent-ui-blocking-from-busy-logic-using-web-workers-api-59eo | react, webdev, javascript, tutorial | I recently received a task from a company I applied to that I had to implement the socket server using node.js. There is some logic that has to be executed when it receives data from the client. To avoid unnecessary delays in network interaction caused by the logic, I used worker threads. After that, I was wondering if there is a way to use worker threads in the web browser and I remembered there is Web Workers API. I had completely forgotten about it since I hadn't used it in any of my projects before. So, I decided to give it a try and write a post about it.
There's something I remember at my first company. My colleagues had to write some calculation logic with a bunch of data from a JSON file using `jQuery`. After writing the logic, he found that it blocked the entire UI. As a solution, he delayed the start of the logic with `setTimeout` and displayed a loading icon. Although the loading icon was blocked as well, at least, users noticed that something was processing by looking at the loading icon. Come to think of it, it was a good place to use Web Workers API but I didn't know at that time.
In this post, I will show you how to avoid UI blocking using Web Workers API.
> [Web Workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_AP) makes it possible to run a script operation in a background thread separate from the main execution thread of a web application.
You can run javascript code in the background, therefore, you can prevent UI blocking caused in the main executing thread.
Without further ado, let's dive into the code!
---
## UI Blocking Example
I will show you an example where the UI is blocked by executing busy logic.
The UI of the example is simple. When the log is clicked, it prints a bunch of logs and we will see if we can change the textbox while it's executing.
Here's the log `onClick` event handler code.
```typescript
const log = () => {
for (let i = 0; i < 1000000; i++) {
console.log('test');
}
console.log('done');
};
```
If you click the button, it prints 'test' one million times, and you won't change the text of the input box for a while.
I pressed the button and I couldn't change the text for seconds. Now, let's move on to the implementation using Web Workers API and you will see if it prevents the UI blocking.
---
## React Web Workers API Implementation
Here's [a web worker example code from MDN](https://github.com/mdn/dom-examples/tree/main/web-workers/simple-web-worker).
But I approached it a bit different way as it's implemented in a React project. Please keep in mind that I didn't put much time into implementing it, so it may not be the best way. I'm sure you can improve the logic better.
Here are the things that I wanted to implement to use Web Workers API in a React app.
- Create a specific number of workers and reuse them to avoid overhead during creation and termination.
- Communicate with Web Workers through React custom hook.
- Get the response from the worker via a callback function.
The above image is a sketch of the code implementation of my code to help you a better understanding of the concept.
---
### Web Worker Script
I created the javascript file `worker.js` under the `public` folder, defined two functions, and wrote the logic, receiving a message and sending the response back.
```javascript
const sum = (nums) => {
let total = 0;
for (const n of nums) {
total += n;
}
return total;
};
const log = (values) => {
for (const v of values) {
console.log(v);
}
};
onmessage = (e) => {
try {
let rst;
switch (e.data.funcName) {
case 'sum': {
rst = sum(e.data.args);
break;
}
case 'log':
log(e.data.args);
break;
default:
throw new Error('Called undefined function');
}
postMessage({ result: true, rst });
} catch (e) {
postMessage({ result: false, err: e });
}
};
```
The `sum` function is an example to show how to handle the response from the web worker.
The `log` function prints all the items of the array it received
I handled the event data as JSON, but you can use any format whatever you want, it doesn't need to be the JSON format.
---
### Custom Hook useWorker
```typescript
import { ReactNode, createContext, useCallback, useContext, useEffect, useState, } from 'react'; interface WorkerContextType { callWorker: (call: WorkerCall) => void; }
interface WorkerContextProviderProps {
workerPoolNum: number;
children: ReactNode;
}
type WorkerPool = {
worker: Worker;
status: WorkerPoolStatus;
};
type WorkerPoolStatus = 'ready' | 'processing';
type Sum = {
funcName: 'sum';
args: number[];
cb: (total: number) => void;
err: (e: Error) => void;
};
type Log = {
funcName: 'log';
args: string[];
cb: VoidFunction;
err: (e: Error) => void;
};
type WorkerCall = Sum | Log;
const WorkerContext = createContext<WorkerContextType>(null!);
export const WorkerContextProvider = ({
workerPoolNum,
children,
}: WorkerContextProviderProps) => {
const [workers, setWorkers] = useState<WorkerPool[]>([]);
const [callQueue, setCallQueue] = useState<WorkerCall[]>([]);
const callWorker: WorkerContextType['callWorker'] = useCallback(
(workerCall) => {
setCallQueue((prevQueue) => prevQueue.concat(workerCall));
},
[]
);
useEffect(() => {
if (!callQueue.length) return;
const freeWorker = workers.find((w) => w.status === 'ready');
if (!freeWorker) return;
const firstCall = callQueue.shift();
if (!firstCall) return;
const call = {
funcName: firstCall.funcName,
args: firstCall.args,
};
freeWorker.status = 'processing';
freeWorker.worker.postMessage(call);
freeWorker.worker.onmessage = (e) => {
freeWorker.status = 'ready';
setWorkers((prevWorkers) => [...prevWorkers]);
if (!e.data.result) {
firstCall.err(e.data.err);
return;
}
firstCall.cb(e.data.rst);
};
setWorkers((prevWorkers) => [...prevWorkers]);
}, [callQueue, workers]);
useEffect(() => {
const newWorkers: WorkerPool[] = [];
for (let i = 0; i < workerPoolNum; i++) {
newWorkers.push({ worker: new Worker('/worker.js'), status: 'ready' });
}
setWorkers(newWorkers);
return () => {
setWorkers((prevWorkers) => {
for (const w of prevWorkers) {
w.worker.terminate();
}
return [];
});
};
}, [workerPoolNum]);
return (
<WorkerContext.Provider value={{ callWorker }}>
{children}
</WorkerContext.Provider>
);
};
// eslint-disable-next-line react-refresh/only-export-components
export const useWorker = () => {
return useContext(WorkerContext);
};
export default WorkerContext;
```
The `useWorker` hook is implemented using React Context. It generates the `workerPoolNum` number of workers. If the number of workers is two, you can execute two functions simultaneously, but it depends on your computer's performance.
In a React component, you can reserve a function call using `callWorker`. The `callWorker` function will add your function call to the `callQueue`.
Whenever workers or `callQueue` is updated, it sees if there is an available worker and calls the function using the available worker, if there isn't any available worker, it suspends the call. When one of the tasks is done, the status of the worker will be changed to `ready` from `processing` and the worker will execute the next call from the `callQueue`.
In the example code, you may need to consider implementing additional code to stop processing workers just in case like when components are unmounted.
---
### Test App
```typescript
import { WorkerContextProvider, useWorker } from './hooks/useWorker';
const Test = () => {
const { callWorker } = useWorker();
const sum = () => {
callWorker({
funcName: 'sum',
args: Array(1000000)
.fill(0)
.map((_, i) => i),
cb: (total) => {
console.log('done: ', total);
},
err: (e) => {
console.error(e);
},
});
};
const log = () => {
callWorker({
funcName: 'log',
args: Array(1000000).fill('test'),
cb: () => {
console.log('done');
},
err: (e) => {
console.error(e);
},
});
};
return (
<div>
<input type="text" />
<button onClick={log}>Log</button>
<button onClick={sum}>Sum</button>
</div>
);
};
function App() {
return (
<WorkerContextProvider workerPoolNum={2}>
<Test />
</WorkerContextProvider>
);
}
export default App;
```
The sum and log functions call a function written in the worker script file using `callWorker`.
Now, it doesn't cause any UI blocking. You can check the demo [here](https://hsk-kr.github.io/react-webworker-example/).
---
## Web Workers API Restriction
1. You can send message only [basic data type](https://developer.mozilla.org/en-US/docs/Web/API/MessagePort/postMessage#message). You can transfer transferable objects from one context to another through the `transfer` option. [Here are more details] (https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Transferable_objects). Since workers can make network requests, you may consider receiving data from the server as an option.
2. [You can't directly manipulate the DOM from inside a worker, or use some default methods and properties of the window object.](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers). You should first consider what should be implemented on the worker side to maximize the benefits of using Web Workers API.
You can find more details in [MDN - Web Workers API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API).
---
## Thanks!
I hope you find it helpful.
Happy Coding!
---
You can check the demo and the code example here.
[Demo](https://hsk-kr.github.io/react-webworker-example/)
[Github Code](https://github.com/hsk-kr/react-webworker-example) | lico |
1,894,111 | HTTP Caching 101 | Table of Contents First of all: What is Caching? What is HTTP Caching? And when should we... | 0 | 2024-06-19T22:50:30 | https://dev.to/godinhojoao/-http-caching-101-4ib0 | webdev, http, cache, basic | ## Table of Contents
- [First of all: What is Caching?](#first-of-all-what-is-caching)
- [What is HTTP Caching? And when should we use it?](#what-is-http-caching-and-when-should-we-use-it)
- [Heuristic caching](#heuristic-caching)
- [Cache-Control HTTP header: Used to define caching policy on HTTP services.](#cache-control-http-header-used-to-define-caching-policy-on-http-services)
- [public, private, no-cache, and no-store directives](#public-private-no-cache-and-no-store-directives)
- [max-age and immutable directive](#max-age-and-immutable-directive)
- [Validation](#validation)
- [Last-Modified and If-Modified-Since headers](#last-modified-and-if-modified-since-headers)
- [ETag header](#etag-header)
- [Which one should I use: ETag or Last-Modified?](#which-one-should-i-use-etag-or-last-modified)
- [Cache busting](#cache-busting)
- [Request collapsing](#request-collapsing)
- [Security](#security)
## First of all: What is Caching?
- The process of storing copies of files in a temporary high-speed storage, known as cache. It allows you to efficiently reuse previously retrieved or computed data.
- Cache is generally stored in fast-access hardware such as RAM. Its primary purpose is to increase data retrieval performance by reducing the need to access the underlying slower storage layer such as hard disk drives (HDDs) or solid-state drives (SSDs).
- The trade-off when using a cache is sacrificing capacity and durability for increased speed and efficiency.
- Cache can be applied in many layers, for example: operating systems, networking (CDNs and DNS), web applications, and databases, significantly reducing latency and improving performance for read-heavy workloads and compute-intensive tasks.
- [AWS Cache for each layer](https://aws.amazon.com/caching/):
<img src="https://i.ibb.co/5121NnM/aws-cache-by-layer.png" alt="AWS Cache for each layer image"/>
- There are many **benefits of caching**, such as: Improving Application Performance, Eliminate Database Hotspots, Increase Read Throughput IOPS (Input/Output operations per second), and more.
## What is HTTP Caching? And when should we use it?
- The HTTP cache stores a response associated with a request and **reuses the stored response for subsequent requests**.
- HTTP cache can be handled by the **user's browser (private cache)** or also by **Content Delivery Networks (CDNs) that act as (intermediary caches)** before accessing our Origin server. Improving performance, and reducing costs.
- An **intermediary cache** means that **it's between the client and the origin server**. This includes CDNs, proxy servers, and even some load balancers that might have caching capabilities.
- **When should we use HTTP Caching?**
- To cache static assets such as images, CSS, and other resources that rarely change.
- To cache responses that don't change often to reduce server load. Reducing the number of requests to the origin server, improving scalability, reducing costs, and improving user experience because of the performance.
## Heuristic caching
- By default, HTTP caches responses even without explicit Cache-Control headers. This is called heuristic caching, a legacy approach. Heuristic caching is still functional in most modern browsers, but it's generally considered a less reliable and outdated approach.
- It's strongly recommended to use Cache-Control headers for better control and consistency
- In summary, it works using other headers like `Last-Modified` to guess how long to cache the response. It's made by the web browser and can also not work for some browsers.
## Cache-Control HTTP header: Used to define caching policy on HTTP services.
- `Cache-Control Directives` control who caches the response, under what conditions, and for how long. There are many directives that we can use to specify the "cache configuration" of a specific resource on our service.
- ## public, private, no-cache, and no-store directives:
- `public`: **any cache may store the response** (all users).
- `private`: cache is for a single user and **must not be stored by a shared cache**.
- **Private responses can’t be stored by CDNs** like AWS CloudFront but **can be stored by the browser** which is considered a private cache.
- This is useful for login methods and endpoints in which the content is personalized for each user, to prevent sharing data with other users.
- `no-cache`: prevents the reuse of responses without revalidation, it means "revalidate the cache before caching it again for future requests!". _So, how to **literally** avoid cache?_ We will see it later.
- `no-store`: avoids using a response already stored in any cache.
- ## max-age and immutable directive
- `max-age`: Time in seconds that you will cache some API response, for example, max-age=30, means that after 30 seconds it will consider the cached data stale and it will request the origin server to fetch this data again. Use max-age=0 to invalidate the cache and get data from the origin server.
- `s-maxage`: The "s-" means "shared cache". This directive is explicitly for CDNs. It overrides the max-age directive and expires the header field when present.
- Two states of HTTP responses: `fresh` cache is valid and `stale` cache is invalid. This state is changed using the `max-age` directive.
- When caching content that the user can access just after authentication, be sure to use `max-age <= auth expiration time`.
- `immutable`: Even using a big `max-age`, when the user reloads some browsers will revalidate the cache, and to solve this you can say to your browser that this content is `immutable`.
```
Cache-Control: public, max-age=31536000, immutable
```
- ## How to don't cache?
- It's not recommended to use no-store too broadly. Because you lose many advantages that HTTP and browsers have, including the **browser's back/forward cache**.
- [Bfcache](https://nitropack.io/blog/post/back-forward-cache): is a feature that allows browsers to create and store a snapshot of an already visited web page in their in-memory
- To avoid using recently saved cache without validation you can use `no-cache` in combination with `private`.
- In old services using versions before HTTP/1.1 that don't understand `no-cache` you can use `max-age=0`.
## Validation
- Stale responses are not immediately discarded.
- HTTP can **transform a stale response into a fresh one by asking the origin server**. This is called validation, or sometimes, revalidation.
- Validation is done by using a **conditional request** that includes an `If-Modified-Since` or `If-None-Match` request header.
- ## Last-Modified and If-Modified-Since headers:
- `Last-Modified`: Date and time the origin server believes the data was last modified, it's set by the origin server, not the clients. It's used together with **If-Modified-Since** header.
- `If-Modified-Since`: If the requested data has not been modified since the specified time, the server will return HTTP status code 304 (not modified). In this case, the data can be used from cache (CDN or Browser).
- **Observations**: Last-Modified is returned by the Origin server and If-Modified-Since time is interpreted by the server, whose clock might not be synchronized with the client. So the best strategy for a client is to reuse the exact value of `Last-Modified` as your `If-Modified-Since`.
- Example summarized from MDN Web Docs:
<img src="https://i.ibb.co/rQ92Xzv/http-last-modified-and-if-modified-since-headers.png" alt="HTTP Last-Modified and If-Modified-Since headers flowchart"/>
- The server can manage the last modified time, but there are some issues with this approach. Parsing the time format can cause issues, and distributed servers often struggle to keep file update times synchronized.
- To solve such problems, the **ETag** response header was standardized as an alternative. Together with the **If-None-Match**.
- ## ETag with If-None-Match header:
- `ETag`: Works like a cache identifier, can be a number, or any string and hash. Means the version of a resource.
- `If-None-Match`: "Hey server, if no cache identifier matches with this that I'm sending, please give me a new response."
```
# response was sent with this ETag and it was cached for max-age=3600 (3600secs = 60min)
HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 1024
Date: Tue, 22 Feb 2022 22:22:22 GMT
ETag: "33a64df5"
Cache-Control: max-age=3600
# request gets stale after 60min and sends a request with this If-None-Match
GET /index.html HTTP/1.1
Host: example.com
Accept: text/html
If-None-Match: "33a64df5"
# If this ETag or "cache identifier" is still valid: Response is returned with 304 not modified and the cache is valid for more 3600secs.
# If not, the new response is returned with 200 success, and a new ETag is returned to be cached.
```
- ## Which one should I use: `ETag` or `Last-Modified`?
- Summarizing: You should use both, but the `ETag` and the `If-None-Match` takes precedence over `Last-Modified` and `If-Modified-Since`.
- **MDN Web docs note**: RFC9110 prefers that servers send both ETag and Last-Modified for a 200 response if possible. During cache revalidation, if both If-Modified-Since and If-None-Match are present, then If-None-Match takes precedence for the validator. If you are only considering caching, you may think that Last-Modified is unnecessary. However, Last-Modified is not just useful for caching; it is a standard HTTP header that is also used by content-management (CMS) systems to display the last-modified time, by crawlers to adjust crawl frequency, and for other various purposes. So considering the overall HTTP ecosystem, it is better to provide both ETag and Last-Modified.
## Cache busting
- Is a technique to cache static files for a long time by attaching a version to the URL. It is good for caching for **long periods**.
- Web browsers cache locally static files like JS, CSS, etc... The problem is that these files change frequently during the development. So, if you use only `max-age` to cache these files the users will not have the most consistent version of it.
- `Cache busting` solves this by using different URLs for each version, ensuring updated content when deploying a new version.
```
# version in filename
bundle.v123.js
# version in query
bundle.js?v=123
# You can also use a hash or anything as your version identifier.
# Note that you can use a long max-age and immutable combined with URL versions
```
- **When not use cache busting?**
- For main resources that changes frequently because of server-side logic or user interaction like `index.html`.
- If your website is static, you can also use cache busting on `index.html`.
## Request collapsing
- When multiple identical requests, using the same `cache key` (an identifier for your current cache), and no valid cache is stored.
- The first request receives a response with `cache miss` and the others will use the same response content but with `cache hit`.
- Reducing the load of your origin server, since only one request reaches it.
- In **some resources** (e.g. auth) for **security reasons**, you may need to **avoid request collapsing**. You can achieve this by using specific headers, such as:
- `Cache-Control: private`, `Cache-Control: no-store`, `Cache-Control: no-cache`, `Cache-Control: max-age=0`, or `Cache-Control: s-maxage=0`.
## Security
- I recommend you to read some contents at [RFC 9111 HTTP Caching](https://www.rfc-editor.org/rfc/rfc9111)
- [Cache Poisoning](https://www.rfc-editor.org/rfc/rfc9111#name-cache-poisoning): Inserting malicious content into a cache to affect multiple users.
- [Timing attacks](https://www.rfc-editor.org/rfc/rfc9111#name-timing-attacks): Exploiting cache behavior to infer user actions based on resource loading times.
- "Ops, I've saved something that I shouldn't, using a long `max-age`"
- [Deleting stored responses](https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching#deleting_stored_responses): "There is basically no way to delete responses that have already been stored with a long max-age.".
- So be sure before setting your headers and working with the http cache.
## References:
- https://aws.amazon.com/caching/
- https://www.cloudflare.com/learning/cdn/what-is-caching/
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching
- https://software-factotum.medium.com/effective-http-caching-part-i-62be61280c8c
- https://software-factotum.medium.com/effective-http-caching-part-ii-e1172093d041
- https://software-factotum.medium.com/effective-http-caching-part-iii-public-private-and-no-store-b64f0452325
- https://bunny.net/academy/http/what-is-caching-and-how-does-cache-work/
- https://nitropack.io/blog/post/back-forward-cache
- https://www.rfc-editor.org/rfc/rfc9111
- https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/RequestAndResponseBehaviorCustomOrigin.html#request-custom-traffic-spikes
- https://odino.org/http-cache-101-scaling-the-web/
- https://odino.org/rest-better-http-cache/
## Thanks for Reading!
- Feel free to reach out if you have any questions, feedback, or suggestions. Your engagement is appreciated!
## Contacts
- You can find this and more content on:
- [My website](https://godinhojoao.com/)
- [GitHub](https://github.com/godinhojoao)
- [LinkedIn](https://www.linkedin.com/in/joaogodinhoo/)
- [Dev Community](https://dev.to/godinhojoao) | godinhojoao |
1,894,109 | Explorando Linux Server | Linux Server sudo: comando para usar um comando com permissão de administrador apt:... | 0 | 2024-06-19T22:50:24 | https://dev.to/ebagabe/explorando-linux-server-30k0 | linux, ubuntu, devops | ## Linux Server
- `sudo`: comando para usar um comando com permissão de administrador
- `apt`: ferramente que faz gerenciamento de pacotes
- `update`: verifica quais pacotes estão disponiveis.
```bash
sudo apt update
```
Esse comando verifica quais pacotes estão disponiveis para instalação.
- Ao utilizar o comando `help` será fornecido uma lista de comandos que podem ser utilizados no seu ambiente.
- Voce também pode utilizar help para comandos, por exemplo: `ls --help` que verifica quais comandos posso utilizar junto com ls
- `mkdir`: Comando para criação de diretorio/pasta
```bash
mkdir devops
```
O comando acima cria um novo diretorio chamado devops
- `history`: Mostra todos os comandos que foram utilizados no ambiente em execução.
## Gerenciando arquivos
- `touch`: Cria um novo arquivo no caminho atual
```bash
touch notas.txt
```
Cria o arquivo notas no formato txt
- `cat`: abre um arquivo no terminal:
```bash
cat > notas.txt
```
Para verificar o que tem de conteudo dentro do arquivo, basta tirar o sinal de `>`
```bash
echo trocando texto > notas.txt
```
Esse comando sobrescreve o que antes tinha escrito em notas.txt
*Instalando Editor de Texto*
```bash
sudo apt-get install nano
```
Ao utilizar `nano notas.txt` um ambiente visual é apresentado para edição de texto do seu arquivo. Onde voce pode escrever livremente como se fosse um bloco de notas
- Para sair do ambiente de texto pressione `ctrl` + `x`
- O programa vai perguntar se você quer salvar os arquivos, você pressiona Y
- Em seguida vai ser perguntado o nome do arquivo se ele já tiver um, você pode simplesmente pressionar enter ou sobrescrever o nome atual.
```bash
tar -czf compactado.tar.gz <arquivo1> <arquivo2>
```
O comando acima cria uma pasta compactada com dois arquivos criados recentemente, certifique-se de alterar o nome para o nome dos arquivos.
```bash
mv compactado.tar.gz /home/<usuario>/devops
```
Esse comando move a pasta compactada para a pasta de devops criada anteriormente. Podemos excluir os arquivos da pasta de usuario agora.
```bash
rm <arquivo1>
```
Com esse comando, o arquivo criado anteriormente foi apagado do sistema. | ebagabe |
1,893,802 | Self-host - Part 1 - Securing your remote server | This blog will be first in the three-part series (maybe more, we will see) of self hosting. In first... | 27,778 | 2024-06-19T22:41:40 | https://dev.to/davorj94/self-host-part-1-securing-your-remote-server-3l94 |
This blog will be first in the three-part series (maybe more, we will see) of self hosting. In first part, we'll be explaining how to start and secure your self hosted server. Second part will be addressing zero-downtime deployment using Docker Swarm. In third part we will be talking about backing up your databases.
**What is this all about? Why self-hosting?**
Let's say you are the developer, which you most likely are. Let's say you get an idea of an application that you want to make. Namely, you should host somewhere that application, as your home computer most likely doesn't have that stable internet connection, nor IP, as usually (read always) those are changed dynamically by your ISP.
Okay, so you have an idea for an application, you want to try it out under your own terms, and what is your first instinct?
**CLOUD**!
**AWS**!
**GOOGLE**!
**SERVICES**!
**REGISTRIES**!
**ACTIONS**!
**CI/CD**!
**MORE CLOUD SERVICES**!
And many more...
Now, there is a catch in all of those little things/services/conveniences, **cloud is expensive**. For everything covered in this part and future part of this series, you will be able to find equivalent service in AWS, Google Cloud, etc., of course you would, but it might cost you quite a bit the more services you take under your belt.
Now, don't get me wrong, I am not against using cloud services (although I think those are a bit costlier than those should be), I am simply stating that you should **minimize** the costs of **everything possible** until you actually get some revenue from you application. Once you start getting revenue, and you stop being the sole developer working on your app, I am telling you, it will be a breeze to scale both vertically and horizontally (okay, horizontally is a bit more involved, but still, it won't be that difficult). When there is money involved in an application, everything will be easier regarding your development, then you might hire a DevOps (if you yourself are one, then congrats, then you might hire a developer to write you an app for your impeccable infrastructure), more developers, etc., you get the point.
Therefore, to conclude the big **why**:
There is no point in you paying large chunks of money for development of an app that is still not generating any revenue. Infrastructure for app functioning should be paid from its profit. Therefore, this series is focused on gathering the knowledge to reduce the costs of development and MVPs until you get some meaningful profits.
**So, enough chit-chat, let's get the server working!**
---
### Why is server needed?
As we have previously explained. Server must be bought, and that is plain infrastructure problem. You cannot really control your network connection, or if you lose electricity in your apartment, or if your ISP will change your home IP address. We are trying to make application infrastructure cheap, but by no means we want to convert that with application up time. We don't want our users to be unable to access our application, that is where we draw the line. Therefore, you must have remote server bought. We are not getting into free 60 days trials from Google Cloud, or any other free trial. Why you ask? Considering that your server will be up longer than that, you might end up paying more than to pay lower price from the beginning.
After much research, at the time of writing of this blog, winner is simply [Hetzner](https://www.hetzner.com/cloud/). Ratio of costs and quality is simply the best at this moment (not promoted, I promise).
Okay, so we will go with Hetzner. Specifically, I will take a server for 6.30€ (at the time of writing this blogs) and has following specifications:
- 8GB RAM
- 4vCPU
- 80GB Disk Storage
Which, in my opinion, according to current market, is a pretty good deal. You can go even lower specifications if you want, but these specifications will work just fine for me.
---
### Buying the server
Once we have decided which server to buy, we shall proceed with its configuration, as presented below.
Germany is closest to me and Ubuntu 22.04 is just fine for me, note that you can choose different version.
Next, we will choose which server we want from the provided options.
After deciding on the strength of our machine, we shall proceed with its SSH configuration.
It is really important that you add public ssh key from your local machine (don't worry, public ssh keys are free to share with others). If you don't, then you will receive e-mail with root user password, which you don't really want. There is no need to add third party in the whole password credentials generation. This way, when you add your public ssh key, you will receive no e-mail and security engineers would be proud.
In order to check what your public ssh key is, run this command:
```
cat ~/.ssh/id_rsa.pub
```
Then simply copy/paste from the terminal and you are good to go.
Once we have completed setting up the machine, we can start ssh connection to its terminal from our local machine with the following command:
```
ssh root@{your server ip}
```
And you should answer any prompt that might occur for first ssh connection (for fingerprint). That prompt is received only once, and if you get it on any following ssh connections, you are most likely victim of Man in the Middle attack, just so you know what to Google if that happens.
**Now, let's make our server secure!**
### 1) Update everything to latest version
It is important to keep everything on server up to date, as newer versions are patching, among other stuff, for security flaws. Therefore, we always want to operate with the latest versions of that software.
To update everything, run following commands:
```
apt update
```
```
apt upgrade
```
After that, once you have upgraded everything, run following command:
```
ls /var/run/reboot-required
```
If you get **/var/run/reboot-required** as response from the last command, that means you should reboot your machine (duh!). To reboot, simply run:
```
reboot
```
and wait for your machine to reboot. Note that you an also reboot from your dashboard from your provider, all major providers allow for dashboard reboot.
### 2) Change password for the root user
In the following steps, we will basically disable root user completely, but I wanted to show you how you can first change root user password. To change it, type following command:
```
passwd
```
and simply enter new password when prompted.
### 3) Create non-root user
It is important to get rid of root user as soon as possible, as root user really does have all permissions to do whatever root user wants. Now, since we are root at the moment, we don't type sudo for anything, but if someone malicious was to reach our server (we certainly hope that is not going to happen!), we want them to reach that server at most as some other user, namely, if they want to temper with some system configuration, they need to type sudo and to know password for sudo (which we will create and make it so it is hard to figure out).
Okay, let's create non-root user by typing the following:
```
adduser {username you want}
```
and then type new password (make sure it is hard to guess password, use some random generator or whatever, as it will be the one you will be using when typing **sudo**) and also fill in answers for questions related to user information. After that new user is created. Remember, **keep this password somewhere safe**, it will be needed for future endeavors.
Then we should add this user to sudo group with the command:
```
usermod -aG sudo {username you have chosen}
```
Check it by typing `groups {username you have chosen}` and see if chosen username is in sudo group. If you see your chosen username and **sudo** as output, then we are good to go.
Now, we need to enable newly created user to connect with our local machine via ssh (as previously added ssh is only for root user). We will accomplish that one by exiting current session from remote server (just type `exit` and you are out), and logging in with our newly created user by typing the following:
```
ssh {chosen username}@{server ip}
```
Now we will be prompted to type our newly created user password because we don't have ssh configured yet. Type in the password and enter the terminal in remote machine.
In order to enable new user ssh login, first we need to get our local machine ssh (remember, it is `cat ~/.ssh/id_rsa.pub`), and then type following:
```
mkdir .ssh
```
```
nano .ssh/authorized_keys
```
and simply paste public key that you logged in your local machine terminal. You can add as many as you want public ssh keys to authorized_keys file.
### 4) Disable password login
Now that we have configured ssh login (**do not do this step if you haven't configured ssh login**, you might lock yourself out of server and then need to go into rescue mode from the dashboard), we should disable password login completely, so we omit all those brute force attacks that try to guess our password and enter our machine, trust me, ssh is **much** harder to guess.
To disable password login, type the following into your server terminal:
```
sudo nano /etc/ssh/sshd_config
```
In the document, find `#PasswordAuthentication`, uncomment and set it to "no".
After that, you need to restart ssh service for changes from `sshd_config` to take effect:
```
sudo service ssh restart
```
From here on forward, password login is disabled entirely, and we are much safer from brute force attacks to our host machine.
### 5) Disable root login
In step 2, when we changed password for root user, we mentioned that we will disable root user from logging in entirely, and we are going to do that now.
Go to the same sshd_config file by typing `sudo nano /etc/ssh/sshd_config` and set `PermitRootLogin` to **no** in order to disable root logging in regardless if it is ssh or password logging in method.
Again, you need to restart ssh service for changes from `sshd_config` to take effect:
```
sudo service ssh restart
```
From now on, nobody can login as root user, so even if someone reaches our server, they still have to figure out our user password (which we made super hard to guess) in order to mimic root commands. That is all the philosophy around sudo and why you shouldn't use root user by default.
### 6) Network and firewall policies
You should configure your firewall settings and close all unnecessary ports. For example, for web applications, usually only ports 80 (http) and 443 (https) are needed, as well as port 22 for ssh connection, which means that all other ports can be closed.
Closing ports can be done from provider dashboard, like in the Hetzner example below:
Or by using [ufw](https://ubuntu.com/server/docs/firewalls) for Ubuntu, which comes with it as default firewall configuration tool.
Whichever method you decide, close all unused ports, if you are not sure yet what app will be hosted, or if any will be hosted, close all except `22` for ssh logging in.
### 7) Change default ssh port
Optionally, you can change default `22` port which you use to login. Usually scripts have port 22 included by default so it can be potentially another layer of hustle for any malicious request. But note that other port, whichever you decide for it to be (preferably above 1024, to avoid potential conflict with other services, but it is up to you) can be quickly figured out by malicious requests, so this is mainly added as another small layer of hustle for malicious requests. To add custom port, type following:
```
sudo nano /etc/ssh/sshd_config
```
and change `Port 22` to whichever number you want. Let's say, for example, that we want to change it to `1602`, then we would have that line written as `Port 1602`.
Afterwards, do not forget to update firewall configuration (previous step) and set ssh port to be whatever you have written instead of 22.
Note that now you will have to login to remote server using -p (short flag for port), as we are using non-standard port. For example:
```
ssh {username}@{your server ip} -p {your chosen port number}
```
In order to avoid this tedious writing of port and username every time we try to connect to remote server via ssh, we can add configuration to our local machine to let it know with which user we want to login when we type ssh {your server ip}. To update that configuration, type the following:
```
cd .ssh
```
```
sudo nano config
```
And type following configuration:
```
Host {your remote host ip}
Port {your custom ssh port}
User {username of remote server}
```
and save and exit. With that configuration in place, next time you want to login to your remote server, just type the following:
```
ssh {your server ip}
```
Also note, if you have multiple ssh keys you can specify which ssh key you want to be used with `Identity` key and name of the file that you want to identify with.
### 8) Configure automatic updates
It is good to allow automatic updates of packages on your server, and in order to achieve that we will use **unattended-upgrades** package, therefore, type the following:
```
sudo apt install unattended-upgrades
```
and then:
```
sudo dpkg-reconfigure unattended-upgrades
```
and hit **yes**. After that, upgrades will be automatic on the remote server.
### 9) Add fail2ban package
You should also add [fail2ban](https://en.wikipedia.org/wiki/Fail2ban) package to prevent brute force attacks. Namely, this package with basically timeout too many repeated failed requests to login, and therefore create a lot of hustle to automated scripts that are trying various combinations of ssh secret key to enter your server (which is really hard to brute force by itself), so this package will increase security drastically. To add it, type the following:
```
apt install fail2ban
```
Note that you can customize its behavior, but usually defaults are enough, at least in the beginning.
### 10) Add 2FA using Google Authenticator
Adding two factor authentication has its pros and cons. Pros are that it is really safe and nobody can access your remote server without the code that is available only in the authenticator app on you mobile. Cons are that automated tools might really have hard time connecting to your remote server, like, for example, GitHub Actions (there are some actions that kind of allow you to type in code for other actions to run, but that is all shady and low stability) and therefore for each deploy in the future you need to be present with authentication code from your application. Also, it is tedious to write auth code every time you log in to server.
Don't get me wrong, I use authenticator app for remote servers, it is just that you need to be aware of pros and cons before making an educated decision to use it.
So, how can we enable 2FA in our remote server?
Simply follow the [step-by-step instructions](https://ubuntu.com/tutorials/configure-ssh-2fa#1-overview) for Ubuntu about configuring the 2FA.
Now, this step-by-step guide didn't really work for me properly, as it didn't prompt me for auth code once I tried to ssh into the remote server. Therefore, after digging a bit more, the following configuration needed to be changed:
```
cd /etc/ssh/sshd_config
```
then scan visually this config file and make sure you have the following lines (wherever in the file, those just need to be present there) in the config:
```
UsePAM yes
PasswordAuthentication no
ChallengeResponseAuthentication yes
AuthenticationMethods publickey,keyboard-interactive
PermitEmptyPasswords no
```
Then do the following:
```
cd /etc/pam.d/sshd
```
and scan visually to have this config:
```
# Standard Un*x authentication.
#@include common-auth
# Require authenticator, if not configured then allow
auth required pam_google_authenticator.so debug nullok
auth required pam_permit.so
```
After this setup, your 2FA should work as expected and you should be prompted to add authenticator code next time you try to ssh to remote server.
---
Also, for good practice, go to remote server and type following commands:
```
cd .ssh
```
```
chmod 600 authorized_keys
```
Basically, we are adding read/write permissions to owner of the file only, to make sure other users cannot change this without special permission (this is especially useful if you have multiple people working on the application and you don't want just anyone to be able and lock out everyone else from the server, accidentally or intentionally).
---
Note: You can also block connections per IP or per VPN, but that is not really feasible for home setup as we don't really have static IPs, and therefore let's leave it as an option here.
---
### Conclusion
We have discussed about why we would want to self host our own application and set up remote server from scratch. We have also outlined step-by-step guide into making your remote server secure and controllable basically only by your local machine.
Basically, this is quite enough for starting with remote servers and getting yourself up and running in self-hosted world. Note that you don't have to buy remote server for development, as you can do that on your local machine, as you can do that only when you want to provide end users with stability of your app, or, namely, provide production environment.
In the next part of this series, we will focus onto deploying our web application (in my case it is web application) using Docker Swarm and zero downtime deployment. We will also look into how we can omit container registries and establish communication directly between our local machine and remote server (mainly to reduce costs, because, as you remember, our app shouldn't be too much of expense until it starts to generate revenue once it changes the world).
#### Useful links:
- [Syntax - Self Host 101](https://www.youtube.com/watch?v=Q1Y_g0wMwww) - Highly recommended
- [Syntax - Self Host 101 Playlist](https://www.youtube.com/watch?v=Q1Y_g0wMwww&list=PLLnpHn493BHHAxTeLNUZEDLYc8uUwqGXa)
- [Ubuntu Firewalls](https://ubuntu.com/server/docs/firewalls)
- [Change SSH Port on Linux](https://gcore.com/learning/how-to-change-ssh-port/)
- [2FA Setup](https://ubuntu.com/tutorials/configure-ssh-2fa#1-overview)
- [2FA Additional Configuration](https://serverfault.com/questions/1073593/ssh-public-key-authentication-with-google-authenticator-still-asks-for-password:)
| davorj94 | |
1,894,108 | How to Register Middleware in Laravel 11 | Middleware is an essential component in Laravel applications, allowing you to filter HTTP requests... | 0 | 2024-06-19T22:41:09 | https://dev.to/msnmongare/how-to-register-middleware-in-laravel-11-3mkd | laravel, webdev, beginners, php | Middleware is an essential component in Laravel applications, allowing you to filter HTTP requests entering your application. Whether you need to authenticate users, log requests, or enforce specific conditions, middleware provides a flexible way to handle these tasks. In this guide, we will walk through the process of creating and registering middleware in Laravel 11, along with practical examples.
#### Step 1: Creating Middleware
First, you need to create the middleware. Laravel provides an artisan command to streamline this process.
1. Open your terminal.
2. Run the following command to create a new middleware:
```bash
php artisan make:middleware AdminMiddleware
```
This command will generate a new middleware file at `app/Http/Middleware/AdminMiddleware.php`.
#### Step 2: Defining Middleware Logic
Next, you need to define the logic for your middleware. Open the newly created middleware file and add your logic.
```php
<?php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Http\Request;
class AdminMiddleware
{
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @return mixed
*/
public function handle(Request $request, Closure $next)
{
if (!auth()->check() || !auth()->user()->isAdmin()) {
return redirect('/login');
}
return $next($request);
}
}
```
In this example, the `AdminMiddleware` checks if the user is authenticated and has admin privileges. If not, it redirects the user to the login page.
#### Step 3: Registering Middleware
In Laravel 11, middleware registration is done in the `bootstrap/app.php` file. You need to register your middleware so Laravel knows about it.
1. Open `bootstrap/app.php`.
2. Register the middleware by adding the following code:
```php
$app->withMiddleware(function (Middleware $middleware) {
$middleware->alias([
'admin' => \App\Http\Middleware\AdminMiddleware::class,
]);
});
```
This code registers the `AdminMiddleware` with an alias of `admin`.
#### Step 4: Applying Middleware to Routes
Now that your middleware is registered, you can apply it to your routes.
1. Open `routes/web.php`.
2. Apply the middleware to your routes as needed:
```php
use App\Http\Controllers\YourController;
Route::get('/admin/dashboard', [YourController::class, 'dashboard'])
->name('admin.dashboard')
->middleware('admin');
```
In this example, the `admin` middleware is applied to the `/admin/dashboard` route, ensuring that only users with admin privileges can access it.
#### Step 5: Testing Your Middleware
Finally, it's essential to test your middleware to ensure it works as expected. You can do this by:
1. Logging in with a non-admin account and trying to access the protected route to see if you're redirected.
2. Logging in with an admin account and ensuring you can access the route without issues.
### Conclusion
In Laravel 11, registering and using middleware involves creating the middleware, defining its logic, registering it in `bootstrap/app.php`, and applying it to your routes. This process allows you to control the flow of HTTP requests and enforce specific conditions, making your application more robust and secure.
Happy coding! | msnmongare |
1,894,107 | I want Some one to Coach me in the tech Industry. | Help me to become a company owner.I have the passion and have start some project currently | 0 | 2024-06-19T22:38:23 | https://dev.to/harber_mina_ce3122c1926e4/i-want-some-one-to-coach-me-in-the-tech-industry-2leb | Help me to become a company owner.I have the passion and have start some project currently | harber_mina_ce3122c1926e4 | |
1,894,104 | amna 1 | A post by Mckinney Cothran | 0 | 2024-06-19T22:18:58 | https://dev.to/mckinney_cothran_d91b8663/amna-cosmetic-1-l2b |
<iframe width="560" height="315" src="https://www.youtube.com/embed/dRaAirc9sYM?si=fJfztC78tvcgv2r1" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe> | mckinney_cothran_d91b8663 | |
1,894,103 | Reactive Streams in Java: Using Project Reactor | Introduction In the world of modern application development, the ability to handle... | 0 | 2024-06-19T22:17:43 | https://dev.to/tutorialq/reactive-streams-in-java-using-project-reactor-d0h | reactivestreams, projectreactor, javareactive, eventdriven | ### Introduction
In the world of modern application development, the ability to handle asynchronous data streams efficiently is critical. Reactive Streams provide a powerful approach to managing this, and Project Reactor, a library for building non-blocking applications on the JVM, is at the forefront of this paradigm. This article will delve into the concepts of Reactive Streams, explore Project Reactor in depth, and provide practical examples to help you harness the power of asynchronous data streams in Java.
### Understanding Reactive Streams
Reactive Streams is a standard for asynchronous stream processing with non-blocking backpressure. The main goal is to enable the development of reactive applications by providing a common API for handling asynchronous data streams.
### How Does the Server Make It Possible for Reactive Streams to Work?
Reactive Streams is a specification for asynchronous stream processing with non-blocking backpressure. Servers that support reactive streams enable this functionality by adhering to principles and mechanisms that manage data flow efficiently. Here’s a detailed breakdown of how servers facilitate the operation of reactive streams:
#### 1. Non-Blocking I/O
**Non-blocking I/O (Input/Output)** is a fundamental aspect that enables reactive streams. In a non-blocking I/O model, server threads do not get blocked while waiting for I/O operations (like reading from a network socket) to complete. Instead, the server can continue processing other tasks while waiting for the I/O operation to finish.
**Implementation in Servers**:
- **Netty**: An asynchronous event-driven network application framework for Java that provides non-blocking I/O operations.
- **Vert.x**: A toolkit for building reactive applications on the JVM, utilizing non-blocking I/O for handling a large number of connections with minimal threads.
#### 2. Event Loop Model
The event loop model allows a server to manage numerous connections concurrently with a small number of threads. This is achieved by continuously polling for events and dispatching them to the appropriate handlers.
**Key Components**:
- **Event Loop**: A loop that listens for and dispatches events or messages in a program.
- **Callbacks**: Functions that get called when an event occurs (e.g., data is received, a connection is established).
**Example**: Node.js, which uses the libuv library to implement an event-driven, non-blocking I/O model.
#### 3. Backpressure Management
Backpressure is the mechanism by which a system regulates the flow of data between producers and consumers. In a reactive stream, consumers can signal how much data they can handle, and producers must respect these signals to prevent overwhelming the consumers.
**Backpressure Mechanisms**:
- **Request-N Method**: Consumers request a specific number of items from the producer.
- **Buffers**: Temporarily store data when the producer is faster than the consumer.
**Implementation in Project Reactor**:
- **BaseSubscriber**: A base class for implementing backpressure-aware subscribers in Reactor.
- **Buffering Operators**: Operators like `buffer`, `window`, and `onBackpressureBuffer` help manage backpressure by controlling data flow.
#### 4. Asynchronous Processing
Asynchronous processing ensures that tasks can be executed without waiting for other tasks to complete, thus making efficient use of system resources and improving responsiveness.
**Reactive Programming Libraries**:
- **Reactor**: Provides abstractions like `Mono` and `Flux` for asynchronous programming in Java.
- **RxJava**: A Java implementation of Reactive Extensions, providing a similar model for asynchronous data streams.
#### 5. Scheduler Management
Schedulers in reactive programming control the execution context of the data streams, determining on which thread or thread pool the tasks will run.
**Types of Schedulers**:
- **Immediate Scheduler**: Executes tasks immediately on the current thread.
- **Single Scheduler**: Runs tasks on a single dedicated thread.
- **Elastic Scheduler**: Dynamically creates threads as needed and reuses idle threads.
- **Parallel Scheduler**: Uses a fixed pool of workers for parallel processing.
**Usage in Project Reactor**:
- `publishOn` and `subscribeOn` operators to switch the execution context.
#### Example Code: Non-Blocking I/O with Project Reactor
Here’s a basic example demonstrating non-blocking I/O with Project Reactor:
```java
import reactor.core.publisher.Flux;
import reactor.netty.http.server.HttpServer;
public class ReactiveServer {
public static void main(String[] args) {
HttpServer.create()
.port(8080)
.route(routes ->
routes.get("/stream", (request, response) ->
response.sendString(Flux.interval(Duration.ofSeconds(1))
.map(i -> "Data chunk " + i + "\n"))))
.bindNow()
.onDispose()
.block();
}
}
```
In this example:
- **Netty-based HTTP Server**: Uses Reactor Netty to create an HTTP server.
- **Reactive Route**: Defines a route `/stream` that streams data chunks at one-second intervals.
- **Non-Blocking Data Flow**: The data is emitted asynchronously using `Flux.interval`.
#### Core Concepts of Reactive Streams
- **Publisher**: Produces a potentially unbounded number of sequenced elements, publishing them according to the demand received from its Subscriber(s).
- **Subscriber**: Consumes elements produced by the Publisher, receiving notifications of new data, errors, or completion.
- **Subscription**: Represents a one-to-one lifecycle of a Subscriber subscribing to a Publisher.
- **Processor**: A component that acts as both a Subscriber and a Publisher, often used to transform data between the source and the final Subscriber.
#### Benefits of Reactive Streams
- **Non-blocking**: Handles requests asynchronously without blocking threads.
- **Backpressure**: Manages flow control by allowing subscribers to dictate how much data they can handle.
- **Composability**: Easily combine multiple streams to build complex asynchronous data pipelines.
- **Error Handling**: Built-in mechanisms to manage errors gracefully.
### Project Reactor
Project Reactor is a fully non-blocking foundation for building reactive applications on the JVM. It is based on the Reactive Streams specification and provides a rich set of operators for composing asynchronous and event-driven programs.
#### Key Components of Project Reactor
- **Flux**: A reactive sequence that can emit zero to many elements.
- **Mono**: A reactive sequence that emits zero or one element.
- **Schedulers**: Control the execution context of reactive streams, allowing fine-grained control over concurrency and parallelism.
### Getting Started with Project Reactor
To start using Project Reactor, include the following dependencies in your `pom.xml` for Maven:
```xml
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>
<version>3.4.8</version>
</dependency>
```
For Gradle, add:
```groovy
implementation 'io.projectreactor:reactor-core:3.4.8'
```
#### Creating a Flux
A `Flux` can emit multiple items, complete, or signal an error. Here's a simple example of creating and subscribing to a `Flux`:
```java
import reactor.core.publisher.Flux;
public class FluxExample {
public static void main(String[] args) {
Flux<String> flux = Flux.just("Hello", "World", "From", "Project", "Reactor");
flux.subscribe(System.out::println,
error -> System.err.println("Error: " + error),
() -> System.out.println("Completed"));
}
}
```
#### Creating a Mono
A `Mono` represents a single-valued or empty result. Here's an example of creating and subscribing to a `Mono`:
```java
import reactor.core.publisher.Mono;
public class MonoExample {
public static void main(String[] args) {
Mono<String> mono = Mono.just("Hello Mono");
mono.subscribe(System.out::println,
error -> System.err.println("Error: " + error),
() -> System.out.println("Completed"));
}
}
```
### Advanced Features of Project Reactor
#### Combining Streams
Project Reactor provides powerful operators for combining multiple streams. Here’s an example using `merge` and `zip`:
```java
import reactor.core.publisher.Flux;
public class CombiningStreamsExample {
public static void main(String[] args) {
Flux<String> flux1 = Flux.just("A", "B", "C");
Flux<String> flux2 = Flux.just("1", "2", "3");
// Merge two fluxes
Flux<String> mergedFlux = Flux.merge(flux1, flux2);
mergedFlux.subscribe(System.out::println);
// Zip two fluxes
Flux<String> zippedFlux = Flux.zip(flux1, flux2, (s1, s2) -> s1 + s2);
zippedFlux.subscribe(System.out::println);
}
}
```
### Backpressure Handling in Project Reactor
Backpressure is a critical concept in reactive programming that deals with controlling the flow of data between a producer (which emits data) and a consumer (which processes data) to prevent the consumer from being overwhelmed by the producer. Project Reactor provides several mechanisms to handle backpressure effectively:
#### Backpressure Strategies
**Buffering**: Collects all emitted items in a buffer until the consumer is ready to process them. This can be done using operators like `onBackpressureBuffer`.
```java
Flux.range(1, 100)
.onBackpressureBuffer(10)
.subscribe(System.out::println);
```
In this example, `onBackpressureBuffer(10)` specifies a buffer size of 10. If the buffer is full, the producer will be paused until space is available.
**Dropping**: Drops items if the consumer cannot keep up. This can be achieved using `onBackpressureDrop`.
```java
Flux.range(1, 100)
.onBackpressureDrop(item -> System.out.println("Dropped: " + item))
.subscribe(System.out::println);
```
Here, items that cannot be processed immediately are dropped, and a message is printed for each dropped item.
**Latest**: Keeps only the latest item, discarding the rest until the consumer is ready to process the next item. Use `onBackpressureLatest` to achieve this.
```java
Flux.range(1, 100)
.onBackpressureLatest()
.subscribe(System.out::println);
```
This approach ensures that the consumer always processes the most recent item, discarding intermediate items if necessary.
**Error**: Propagates an error if the producer cannot emit items due to backpressure. This can be handled using `onBackpressureError`.
```java
Flux.range(1, 100)
.onBackpressureError()
.subscribe(
System.out::println,
error -> System.err.println("Error: " + error)
);
```
When the buffer is full, this method throws an error, which can be handled by the subscriber.
#### Backpressure Handling with `BaseSubscriber`
Project Reactor’s `BaseSubscriber` class allows fine-grained control over backpressure by explicitly requesting items.
```java
import reactor.core.publisher.BaseSubscriber;
import reactor.core.publisher.Flux;
public class BackpressureExample {
public static void main(String[] args) {
Flux.range(1, 100)
.subscribe(new BaseSubscriber<Integer>() {
@Override
protected void hookOnSubscribe(Subscription subscription) {
request(1); // Request the first item
}
@Override
protected void hookOnNext(Integer value) {
System.out.println(value);
request(1); // Request the next item after processing the current one
}
});
}
}
```
In this example:
- The `hookOnSubscribe` method requests the first item.
- The `hookOnNext` method processes each item and then requests the next one, effectively controlling the flow of items.
### Error Handling in Project Reactor
Error handling is an essential aspect of reactive programming, allowing applications to manage and recover from failures gracefully. Project Reactor provides several mechanisms for error handling:
#### Error Handling Operators
**onErrorReturn**: Provides a fallback value if an error occurs.
```java
Flux<Integer> flux = Flux.just(1, 2, 0, 4)
.map(i -> 10 / i)
.onErrorReturn(-1);
flux.subscribe(System.out::println);
```
In this example, if a division by zero occurs, the `onErrorReturn` operator provides `-1` as a fallback value.
**onErrorResume**: Switches to an alternative `Publisher` when an error occurs.
```java
Flux<Integer> flux = Flux.just(1, 2, 0, 4)
.map(i -> 10 / i)
.onErrorResume(e -> Flux.just(-1, -2, -3));
flux.subscribe(System.out::println);
```
If an error occurs, the `onErrorResume` operator switches to an alternative `Flux` emitting `-1`, `-2`, and `-3`.
**onErrorMap**: Transforms the error into another exception.
```java
Flux<Integer> flux = Flux.just(1, 2, 0, 4)
.map(i -> 10 / i)
.onErrorMap(e -> new RuntimeException("Custom exception: " + e.getMessage()));
flux.subscribe(System.out::println, error -> System.err.println("Error: " + error));
```
This example converts the original exception into a custom `RuntimeException` with a detailed message.
**retry**: Retries the sequence when an error occurs.
```java
Flux<Integer> flux = Flux.just(1, 2, 0, 4)
.map(i -> 10 / i)
.retry(1); // Retry once
flux.subscribe(System.out::println, error -> System.err.println("Error: " + error));
```
The `retry` operator retries the sequence once if an error occurs. You can specify the number of retries.
#### Global Error Handling
For more centralized error handling, you can use the `doOnError` method to log errors or perform other actions globally.
```java
Flux<Integer> flux = Flux.just(1, 2, 0, 4)
.map(i -> 10 / i)
.doOnError(error -> System.err.println("Error occurred: " + error.getMessage()))
.onErrorReturn(-1);
flux.subscribe(System.out::println);
```
In this example, `doOnError` logs the error message before the `onErrorReturn` operator provides a fallback value.
### Use Cases of Reactive Streams with Project Reactor
#### Real-time Data Processing
Project Reactor is ideal for real-time data processing scenarios, such as financial tickers, live sports scores, or social media feeds.
**Example**: A live stock ticker application that processes and displays stock prices in real-time.
```java
import reactor.core.publisher.Flux;
import java.time.Duration;
public class StockTicker {
public static void main(String[] args) {
Flux.interval(Duration.ofSeconds(1))
.map(tick -> "Stock price at tick " + tick + ": " + (100 + Math.random() * 10))
.subscribe(System.out::println);
}
}
```
#### Microservices Communication
Reactive Streams facilitate efficient communication between microservices. Project Reactor can be used to build non-blocking REST APIs and manage inter-service communication.
**Example**: A service that aggregates data from multiple microservices and provides a consolidated response.
```java
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
public class AggregatorService {
private final WebClient webClient = WebClient.create();
public Mono<String> aggregateData() {
Mono<String> service1 = webClient.get().uri("http://service1/data").retrieve().bodyToMono(String.class);
Mono<String> service2 = webClient.get().uri("http://service2/data").retrieve().bodyToMono(String.class);
return Mono.zip(service1, service2, (data1, data2) -> "Combined Data: " + data1 + ", " + data2);
}
public static void main(String[] args) {
AggregatorService service = new AggregatorService();
service.aggregateData().subscribe(System.out::println);
}
}
```
### Conclusion
Reactive Streams and Project Reactor offer a robust framework for handling asynchronous data streams in Java. By leveraging these technologies, developers can build highly responsive, resilient, and scalable applications. Whether you are dealing with real-time data processing, microservices communication, or complex event-driven systems, Project Reactor provides the tools and abstractions needed to succeed. | tutorialq |
1,889,566 | Building Core Banking: A Blueprint for Modern Financial Systems - Introduction | The central nervous system of a bank’s operations is its core banking system. This vital component... | 27,783 | 2024-06-19T22:15:21 | https://dev.to/claretnnamocha/building-core-banking-a-blueprint-for-modern-financial-systems-introduction-4d13 | microservices, corebanking, security, architecture | The central nervous system of a bank’s operations is its core banking system. This vital component oversees crucial daily tasks, including monitoring cash flows, administering customer accounts, and maintaining smooth operations. It’s the foundation that enables efficient banking services for customers.
Core banking refers to a backend infrastructure that unifies various branches of a single bank. This system facilitates real-time operations, such as managing loans, processing withdrawals and deposits, and handling payments.
What is the meaning of core banking?
“**CORE**” in “Core Banking” stands for Centralised Online Real-time Environment:
C - Centralised: Consolidates all banking operations into one unified system.
O - Online: Provides 24/7 network-based access to banking services globally.
R - Real-time: Guarantees immediate processing and updating of all transactions.
E - Environment: Integrates the entire ecosystem of banking technology and protocols.
This system interconnects bank branches through a single platform, enabling customers to access services from any location. It enhances convenience, accessibility, and operational efficiency while ensuring secure practices across many channels (e.g. mobile, web, USSD, branch, 3rd party, etc.) within the banking network.
A lot of modules and services make up a modern banking experience in core banking, and for this series, we will only explore how we built three major services at the heart of every core banking solution.
1. Account Management Service
2. Transactions Management Service
3. Notifications Service
We will start with how the core banking system facilitates efficient customer onboarding and account opening. We’ll look at how it stores and manages all account-related information. This includes essential information like account numbers, balances, customer data and account details.
Next, we look at how the core banking system uses general ledger(s) to track all transactions across the network to create real-time, secure, and accurate transactional experiences (e.g. fund transfers, withdrawals, bill payments, deposits, etc.) for customers.
Finally, for this series, we’ll take a look at how the core banking system uses notifications to improve security and foster trust between the bank and its clients by keeping customers informed about their account activities and banking operations with real-time alerts, security notifications, status updates, multi-factor authentication, e.t.c
In each module, we look at the activities a customer can perform, the database design and architecture behind the scenes, and the considerations to make these activities safe and convenient.
Coming up next, meet the team. | claretnnamocha |
1,894,101 | OdinBot.io - The Best SOL Copytrader Bot on the Market | The Best Copytrading Bots for SOL in 2024: A Comprehensive Comparison In the ever-evolving landscape... | 0 | 2024-06-19T22:06:27 | https://dev.to/odinbot/odinbotio-the-best-sol-copytrader-bot-on-the-market-41o0 | solana, copytrading | The [Best Copytrading Bots for SOL](https://odinbot.io
) in 2024: A Comprehensive Comparison
In the ever-evolving landscape of cryptocurrency, copytrading bots have become indispensable tools for both novice and seasoned traders. These bots enable users to replicate the trades of successful investors, known as "whales," thereby democratizing access to sophisticated trading strategies. Among the various options available, OdinBot.io stands out as a premier choice, especially for those trading on the Solana (SOL) blockchain. In this article, we will delve into the best copytrading bots for SOL in 2024, with a particular emphasis on OdinBot.io's unique advantages in terms of UI/UX, transaction speed, and development team.
Introduction to Copytrading Bots
Copytrading bots are automated systems that allow users to mirror the trading activities of selected cryptocurrency wallets. This practice enables less experienced traders to benefit from the expertise of successful traders, reducing the learning curve and potentially increasing profitability. The Solana blockchain, known for its high throughput and low transaction fees, is an ideal platform for copytrading, and several bots have emerged to leverage its capabilities.
OdinBot.io: A Cut Above the Rest
OdinBot.io distinguishes itself as a top-tier copytrading bot on the Solana network. Inspired by the Norse god Odin, the bot is designed to empower users to trade with the wisdom and power of the All-Father himself. Let's explore why OdinBot.io is set to dominate the copytrading landscape in 2024.
User Interface and User Experience (UI/UX)
One of OdinBot.io's most significant advantages is its streamlined and intuitive user interface. Unlike many trading bots that require users to navigate through cumbersome third-party apps like Telegram, OdinBot.io offers a seamless experience entirely within its native web app. This design ensures that both beginners and veterans can start trading effortlessly.
The onboarding process is straightforward: create an account, select a whale wallet to mirror, deposit SOL, and the bot takes care of the rest. This simplicity contrasts sharply with the complexity of other bots, making OdinBot.io the preferred choice for traders who value ease of use.
Lightning-Fast Transaction Times
Speed is crucial in the fast-paced world of cryptocurrency trading, and OdinBot.io excels in this area. The bot is engineered with professional infrastructure that ensures rapid execution of trades. This capability allows users to potentially front-run whale trades, capturing more favorable market conditions and maximizing profits.
In comparison, other bots on the market often suffer from latency issues, resulting in missed opportunities and suboptimal trade execution. OdinBot.io's focus on speed gives it a significant edge over competitors, making it the fastest copytrading bot on Solana.
Robust Development Team
Behind OdinBot.io is a dedicated development team committed to continuous improvement and innovation. The bot is currently in closed beta, allowing select users to experience its capabilities while the team refines the system. Beta testers enjoy benefits such as zero fees on the first $10,000 in trading volume and a generous 50% affiliate commission.
The team's roadmap includes the expansion of OdinBot.io to other blockchain networks, ensuring that it remains at the forefront of copytrading technology. This forward-thinking approach and commitment to excellence make OdinBot.io a reliable and cutting-edge tool for crypto traders.
Comparing Competitors
To provide a comprehensive comparison, let's examine some of OdinBot.io's primary competitors in the SOL copytrading space and see how they stack up.
Competitor 1: CopyTraderX
CopyTraderX is another popular copytrading bot on the Solana network. It offers a range of features, including automated trading and access to a curated list of whale wallets. However, it falls short in several key areas compared to OdinBot.io.
UI/UX: CopyTraderX requires users to integrate with third-party applications like Telegram, which can be cumbersome and pose security risks. The user interface is also less intuitive, making it more challenging for beginners to get started.
Transaction Speed: While CopyTraderX performs adequately in terms of transaction speed, it cannot match the lightning-fast execution times of OdinBot.io. Users may experience delays, especially during periods of high market volatility.
Development Team: The development team behind CopyTraderX is competent but lacks the same level of innovation and forward momentum seen with OdinBot.io. The roadmap is less ambitious, focusing primarily on maintaining current features rather than expanding capabilities.
Competitor 2: WhaleMirror
WhaleMirror is another contender in the SOL copytrading market. It offers a solid set of features, including real-time trade mirroring and comprehensive analytics. However, it still lags behind OdinBot.io in several aspects.
UI/UX: WhaleMirror's user interface is more complex and less user-friendly. New users often find the learning curve steep, and the reliance on external apps for certain functions can be off-putting.
Transaction Speed: Although WhaleMirror boasts decent transaction speeds, it cannot compete with the efficiency and rapid execution of OdinBot.io. This disadvantage can result in less favorable trade outcomes, particularly in fast-moving markets.
Development Team: The WhaleMirror team is experienced but has a slower development cycle. New features and updates are less frequent, meaning users may have to wait longer for improvements and innovations.
Competitor 3: SolanaTrader
SolanaTrader is another noteworthy mention in the SOL copytrading arena. It provides a user-friendly interface and competitive transaction fees but still doesn't measure up to OdinBot.io's standards.
UI/UX: SolanaTrader offers a better user experience than some competitors but still lacks the seamless integration and ease of use that OdinBot.io provides. The interface is somewhat cluttered, which can be overwhelming for new users.
Transaction Speed: SolanaTrader's transaction speeds are reasonable but not exceptional. Users may experience occasional delays, which can impact trading performance.
Development Team: The team behind SolanaTrader is proactive but lacks the visionary approach of OdinBot.io's developers. While they maintain the platform well, there is less emphasis on pushing the boundaries of what a copytrading bot can achieve.
Advanced Features of OdinBot.io
Beyond its superior UI/UX and transaction speeds, OdinBot.io is also working on several advanced features that further distinguish it from competitors.
Only Copy New Trades
This feature allows users to mirror only new trades made by their selected whale wallets, providing greater control over their trading strategy. By focusing on fresh trades, users can avoid duplicating past mistakes and optimize their trading performance.
Manual Position Management
OdinBot.io will soon enable users to manually exit or add to positions, giving them more flexibility and control over their investments. This capability allows traders to adjust their strategies based on market conditions and personal preferences.
Export Wallet Keys
For added security and transparency, OdinBot.io plans to offer a feature that allows users to export their wallet keys. This function provides peace of mind and ensures that users have full control over their assets.
Snipe New Launches
One of the most exciting upcoming features is the ability to snipe new token launches. This capability allows users to capitalize on early opportunities and potentially secure significant gains from new projects.
Affiliate Program
OdinBot.io also offers a robust affiliate program that rewards users for referring new traders. During the closed beta, participants can earn a 50% commission on trading fees, a lucrative incentive for promoting the platform. After the hard launch, the affiliate structure will transition to a three-tier system with commissions of 25%, 10%, and 3%, respectively.
Conclusion: OdinBot.io Reigns Supreme
In the competitive world of SOL copytrading bots, OdinBot.io stands head and shoulders above the rest. Its intuitive UI/UX, lightning-fast transaction speeds, and innovative development team make it the premier choice for traders looking to maximize their success on the Solana blockchain. While other bots like CopyTraderX, WhaleMirror, and SolanaTrader offer valuable features, they cannot match the comprehensive capabilities and forward-thinking approach of OdinBot.io.
Whether you are a novice trader seeking to learn from the best or an experienced investor looking to streamline your strategy, OdinBot.io provides the tools and support needed to trade like a god. Join the ranks of OdinBot's Hunters and harness the power of whale trading on Solana. The future of copytrading is here, and it is called OdinBot.io.
Frequently Asked Questions (FAQ)
Q: What is copytrading?
A: Copytrading allows users to replicate the trades of successful investors, known as "whales," thereby leveraging their expertise to potentially increase profitability.
Q: How does OdinBot.io work?
A: OdinBot.io allows users to mirror the trades of selected whale wallets on the Solana blockchain. Simply create an account, select a whale wallet, deposit SOL, and the bot handles the rest.
Q: What are the benefits of using OdinBot.io?
A: OdinBot.io offers a user-friendly interface, lightning-fast transaction speeds, and a robust development team. It also provides advanced features like manual position management and the ability to snipe new token launches.
Q: How much does OdinBot.io charge in fees?
A: OdinBot.io charges a 1% fee on transactions. Beta testers enjoy zero fees on the first $10,000 in trading volume.
Q: Can I earn commissions by referring others to OdinBot.io?
A: Yes, OdinBot.io offers a generous affiliate program with a 50% commission during the closed beta and a three-tier structure after the hard launch.
Q: What are the minimum requirements to trade with OdinBot.io?
A: It is recommended to trade with at least 0.5 SOL to ensure profitability. Each trade is sent with a priority fee to ensure quick execution.
For more information and to join the waitlist for OdinBot.io | odinbot |
1,894,100 | key metrics to measure web perfomance; an short introduction | Monitoring web performance is crucial for ensuring optimal user experience and business success. Here... | 0 | 2024-06-19T22:01:26 | https://dev.to/nosylasairaf/key-metrics-to-measure-web-perfomance-an-short-introduction-2dmp | Monitoring web performance is crucial for ensuring optimal user experience and business success. Here some key metrics to consider:
## 1. **Page Load Time**
Page load time measures how long it takes for a web page to fully load in a user's browser. Faster load times improve user satisfaction and engagement.
## 2. **Time to First Byte (TTFB)**
TTFB measures the time taken by the browser to receive the first byte of response from the server after requesting a web page. It indicates server responsiveness.
Practical Example:
_When a user visits a website, their browser sends a request to the server to fetch the web page. The server processes this request, retrieves the necessary data (HTML, CSS, JavaScript, images, etc.), and starts sending it back to the browser. TTFB specifically measures the time it takes from the moment the browser sends the request until it receives the first byte of data from the server._
_For instance, if a user accesses a news website, the TTFB can vary depending on server load and network conditions. A fast TTFB (e.g., under 200 milliseconds) means the server responds quickly, delivering the initial content promptly. A slow TTFB (e.g., over 1 second) indicates potential issues with server performance or network latency, leading to longer wait times for users._
## 3. **First Contentful Paint (FCP)**
FCP measures the time when the browser first renders any content on the screen, such as text, images, or non-white canvas. It gives a sense of when the user perceives the page as loading.
## 4. **Time to Interactive (TTI)**
TTI measures when the page is fully interactive and responsive to user input. It's crucial for determining when users can start engaging with the content.
## 5. **Total Blocking Time (TBT)**
TBT measures the total amount of time between First Contentful Paint and Time to Interactive when the main thread is blocked and unable to respond to user input.
## 6. **Load Distribution**
Load distribution metrics assess how resources (like images, scripts, and stylesheets) are distributed across different servers or Content Delivery Networks (CDNs) to optimize load times.
## 7. **Error Rate**
Error rate tracks the percentage of requests that result in errors, such as 404 (not found) or 500 (server error). High error rates can indicate issues with server configurations or network problems.
All this metrics influence influence conversion rate as we are human
You can measure so many things using the performance API
`const resources = performance.getEntriesByType("resource");
const paints = performance.getEntriesByType("paint");
const navigations=performance.getEntriesByType("navigation");
`
useful
https://developer.mozilla.org/en-US/docs/Web/API/Performance
https://pagespeed.web.dev/
| nosylasairaf | |
1,894,099 | Pricing and Cost Management | Budgets Budgets allow you to set custom thresholds for your AWS spending and usage, alerting you... | 0 | 2024-06-19T21:53:50 | https://dev.to/warrisoladipup2/pricing-and-cost-management-2p20 |
**Budgets**
Budgets allow you to set custom thresholds for your AWS spending and usage, alerting you when you exceed these thresholds.
Scenario: You set a budget of $500 per month for your development environment. If your costs approach this limit, AWS Budgets sends you an alert, allowing you to investigate and take action before overspending.
**Cost and Usage Reports**
The Cost and Usage Report provides detailed information about your AWS usage and costs.
Scenario: You need to analyze the cost trends of your AWS resources over the past year. The Cost and Usage Report gives you a comprehensive view of your spending.
**Cost Explorer**
Cost Explorer helps you visualize and forecast your AWS costs and usage over time.
Scenario: You want to predict next month's AWS costs based on historical usage. Cost Explorer helps you visualize past trends and forecast future expenses.
<u>**_Management and Governance_**</u>
**Organizations**
Organizations allow you to centrally manage multiple AWS accounts under one organization.
Scenario: Your company has different departments using separate AWS accounts. Using AWS Organizations, you can manage billing and policies centrally.
**Control Tower**
Control Tower helps you set up and govern a secure, multi-account AWS environment based on AWS best practices.
Scenario: You need to ensure all AWS accounts within your organization comply with company policies. Control Tower sets up a landing zone with guardrails to enforce these policies.
**Systems Manager**
Systems Manager provides operational insights and management of AWS resources.
Scenario: You manage multiple EC2 instances and need to automate routine tasks. Systems Manager allows you to run commands, manage patches, and monitor performance from a single console.
**_<u>Support Plans</u>_**
**Trusted Advisor**
Trusted Advisor provides real-time guidance on following AWS best practices in terms of cost optimization, performance, security, and fault tolerance.
Scenario: Trusted Advisor alerts you to security gaps, such as open ports on EC2 instances, allowing you to quickly address these issues.
**Basic Support**
Basic Support is free for all AWS accounts and includes access to customer service and certain AWS Trusted Advisor checks.
Scenario: You’re a new AWS user and need help with account setup. Basic Support provides access to documentation and AWS support forums.
**Developer Support**
Developer Support starts at $29 per month and is intended for testing and development environments.
Scenario: You're developing a new application and need technical support for troubleshooting. Developer Support provides resources and technical guidance.
**Business Support**
Business Support starts at $100 per month and is recommended for production workloads.
Scenario: Your application is in production, and you need 24/7 access to AWS technical support. Business Support ensures you have the necessary support.
**Enterprise Support**
Enterprise Support starts at $15,000 per month and is recommended for business-critical applications.
Scenario: Your business relies on AWS for mission-critical services and requires a dedicated Technical Account Manager (TAM) and 24/7 support. Enterprise Support provides this high level of service.
**_<u>Additional Services</u>_**
**Marketplace**
Marketplace is a digital catalog where you can purchase or license prebuilt software solutions.
Scenario: You need a specialized analytics tool for your project. AWS Marketplace offers a variety of third-party solutions that you can quickly deploy.
**AWS Partner Network (APN)**
APN is a global community of partners offering software solutions and consulting services for AWS.
Scenario: Your company needs help with a complex migration to AWS. APN partners can provide the expertise and tools required for a smooth transition.
**Managed Services**
Managed Services help you operate your AWS infrastructure efficiently, ensuring best practices.
Scenario: You lack the internal resources to manage your AWS environment. AWS Managed Services take over the operational management, allowing you to focus on your core business.
**Professional Services**
Professional Services assist enterprises in transitioning to cloud-based operations.
Scenario: Your organization needs to migrate a legacy system to AWS. Professional Services provide the strategy and execution support needed for this migration.
**AWS License Manager**
License Manager helps manage software licenses for your AWS resources.
Scenario: You use various software licenses for your applications. License Manager tracks these licenses, ensuring compliance and optimizing usage.
**AWS Certificate Manager**
Certificate Manager helps provision and manage SSL/TLS certificates for your AWS resources.
Scenario: You need to secure your website with HTTPS. AWS Certificate Manager provisions and renews SSL/TLS certificates automatically. | warrisoladipup2 | |
1,894,007 | Tradesmen Agency | Tradesmen Agency | 0 | 2024-06-19T19:30:18 | https://dev.to/developercode/tradesmen-agency-2jbn | [Tradesmen Agency](https://tradesmenagency.com/) | developercode | |
1,893,797 | How to create and connect to a Linux VM using a Public Key. | A Linux virtual machine (VM) can be created using the Azure portal. This guide will show you how to... | 0 | 2024-06-19T21:52:58 | https://dev.to/laoluafolami/how-to-create-and-connect-to-a-linux-vm-using-a-public-key-2jhb | devops, cloud, azure | A Linux virtual machine (VM) can be created using the Azure portal. This guide will show you how to use the Azure portal to deploy a Linux virtual machine using Ubuntu Server 22.04 LTS as the operating system (OS) image. A connection will be established to the VM using Secure Shell (SSH) with a public key and the NGINX webserver will also be installed.
**Sign in to the Azure portal**
Sign in to the [Azure portal]((https://azure.microsoft.com/en-us/get-started/azure-portal))
**Creating a Virtual machine**
- Select "+ Create a resource" from the Azure homepage.
- Click on the Virtual machine option
- In the **Basics** tab, under the **Project details**, select your Azure subscription and create a **Resource Group**
-
- Under the **Instance details**, enter the virtual machine name, the region and select the availability options and security type as well as the image (Ubuntu server 22.04 LTS- x64 Gen2).
Next select the VM size to support the workload that you want run.
Note that the size chosen then determines such factors as processing power, memory and storage capacity.
- Under the **Administrator account**, select **SSH public key**
- Enter a **username** in the _Username field._ Leave the **SSH public key source** to its default and enter a name for the **Key pair name**.
- Next are the **Inbound port rules** Select **Allow selected ports** and choose the **selected inbound ports** which are **HTTP (80) and SSH (22)** from the drop-down.
- Leave the remaining default values and select **Review + create botton** at the bottom of the page.
On the **Create a virtual machine** page, a summary of all the details of the VM to be created is displayed. Go ahead and click **Create** when you are ready to provision the VM.
- A **Generate new key pair** window will open, select _Download private key and create resource _.
A key will be downloaded as _(the name of the key with a .pem extension) ._ **myKey.pem**
- Ensure that you know where the key file is downloaded as you will need the path of the file.
- Wait for the deployment to complete then select **Go to resource**.
## Connecting to the Virtual Machine
-
To create an SSH connection with the VM, from a Windows machine, open a PowerShell prompt.
-
Copy the path to where you have the _.pem_ file downloaded and use the public IP address generated by the VM.
```
ssh -i ~/Downloads/myKey.pem azureuser@52.233.89.56
```
```
Tip
The SSH key you created can be used the next time you
create a VM in Azure. Just select the Use a key
stored in Azure for SSH public key source the next
time you create a VM. You already have the private
key on your computer, so you won't need to download
anything.
```
## Installing a Web server
To see what the VM is doing, install the NGINX webserver from the SSH session and then update the package sources alongside the latest NGINX package.
- Use the Linux commands below:
`sudo apt-get -y update
sudo apt-get -y install nginx`
- To view the default NGINX welcome page, type the public address of the VM as the web address in a browser of your choice.
## Cleaning up resources
**Delete resources**
When no longer needed, you can delete the resource group, virtual machine, and all related resources.
- On the Overview page for the VM, select the Resource group link.
-
At the top of the page for the resource group, select Delete resource group.
- A page will open warning you that you are about to delete resources. Type the name of the resource group and select Delete to finish deleting the resources and the resource group.
| laoluafolami |
1,892,983 | Simplified Virtual Development Environment on the Browser: GitHub Codespace | Starting my cloud journey, one of the biggest challenges I faced was finding a place to practice... | 0 | 2024-06-19T21:35:39 | https://paschalogu.notion.site/Simplified-Virtual-Development-Environment-on-the-Browser-GitHub-Codespace-07d5fe369e2840a2b7e0caae1e4f9ca9 | virtualmachine, github, development, codespace | Starting my cloud journey, one of the biggest challenges I faced was finding a place to practice Linux commands. GitHub Codespace has completely solved this problem.
As a seasoned professional, imagine being able to take your entire local development environment with you, minus the hassle of carrying your computer. GitHub Codespace offers exactly that. Codespace is a cloud-based service that allows you to create and run your projects directly from your browser. No need to set up your projects on your local machine — everything you need is hosted online and accessible from any device through the web.
## Executive Summary
This article aims to introduce and simplify GitHub Codespace: a cloud development environment for developers. It covers the prerequisites, pricing, steps to launch and set up a Codespace, including installing essential tools like Terraform, AWS CLI, and Ansible. The guide also details how to push code changes to GitHub and manage Codespace efficiently.
## What is GitHub Codespace?
GitHub codespace is a remote compute with a text editor (Visual Studio Code) attached to it that runs on the cloud, where you can set up a development environment. This means that you can install all your project dependencies and run from the browser. It automatically sets up all the necessary components for your project, including the source code, runtime, compiler, debugger, editor, custom configuration files, relevant editor extensions, and additional features.
With codespace, individuals can get up to 60 hours of free compute per month, The best part is, it has vim and nano preinstalled. 🤠
In this guide, I’ll walk you through the process of installing Terraform and AWS CLI within a codespace, enabling you to manage your infrastructure as code directly from the cloud on the go.
## Pre-requisite:
To follow along, you simply need to have a Github account. You can click here to [sign-up](https://github.com/signup).
## Steps to launch GitHub Codespace
### i.) Create a GitHub Repository
1. Log into [Github.com](https://github.com/)
2. Click on “New”, at the top left page of the screen to add a new repository.
1. Give you the new a ay name, and select the button to Add a README file. Then click on “Create”
### ii.) Create Codespace for the Repository
Once the repository has been created, we can add a codespace using the following steps:
1. Navigate to the newly created repository and click on “Code”.
2. Select "Codespaces" and then click on “Create codespace on main”.
This process will generate a virtual development environment on the main branch of the repository, facilitating seamless coding and collaboration."
A couple of things happen when you create your development environment:
1. VM and storage are assigned to your codespace.
2. Container is created and your repository is cloned.
3. You can connect to the codespace.
4. Codespace continues with post-creation setup.
This will open a text editor (visual studio code) on a new browser window, we you can start your development.
## Set-up the Codespace
Welcome to the exciting part where you get to set up your virtual environment to mirror your local development setup. This virtual environment will allow you to write, compile, debug, and test your code just like you would on your local machine.
In the below steps, we will setup and install terraform, AWS CLI, and Ansible on or virtual environment.
### Install Terraform, AWS CLI and Ansible
### i.) Make a File
Open your terminal within the virtual code environment and use the following command to make a new file `nano setup_tools.sh` . This command above will open up the nano editor on your terminal.
```bash
nano setup_tools.sh
```
Tip: If your terminal is not open by default, you can open this by using the hamburger button at the top right, select `Terminal` and `New Terminal`.
### ii.) Add SetUp Script to the File
Copy the bash script below into the terraform installation file created above.
```bash
#!/bin/bash
# Update package list
sudo apt-get update
# Install dependencies
sudo apt-get install -y gnupg software-properties-common curl
# Add HashiCorp GPG key
curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
# Add Terraform repository
sudo apt-add-repository "deb [arch=amd64] https://apt.releases.hashicorp.com $(lsb_release -cs) main"
# Update package list again
sudo apt-get update
# Install Terraform
sudo apt-get install -y terraform
# Install AWS CLI
sudo apt-get update
sudo apt-get install -y awscli
# Install Ansible
sudo apt-get update
sudo apt-get install -y software-properties-common
sudo add-apt-repository --yes --update ppa:ansible/ansible
sudo apt-get install -y ansible
# Verify installation
terraform --version
# Verify installation
aws --version
# Verify Ansible installation
ansible --version
```
To save and exit the editor, press `Ctrl + O`, then `Enter` to confirm the file name, and finally `Ctrl + X` to exit.
Now, file setup is ready, and you can proceed with running the script to install Terraform, AWS CLI, and Ansible on your virtual environment.
### iii.) Execute Script
Run the installation script to install terraform and print the version of terraform installed.
```bash
bash setup_tools.sh
```
This will execute all the necessary steps to install Terraform in your GitHub codespace environment.
## Push your Changes to GitHub
Follow these steps to add your changes, commit them with a message, and push them to your GitHub repository:
### **i.) Stage the File for Commit**
Use the `git add` command to stage the `setup_tools.sh` file. This prepares the file for committing.
```bash
git add setup_tools.sh
```
### **ii.) Commit the Changes**
Next, commit the staged file with a descriptive message. This message should give an idea of what changes or additions you made.
```bash
git commit -m "Add setup script"
```
### iii.) Push the Changes
Finally, push your commit to your GitHub repository. This uploads your changes to GitHub.
```bash
git push
```
Codespace is intelligent to push this change to your GitHub repository.
## To Stop and Exit GitHub Codespace
### i.) List Your Codespaces
On the your terminal, use the following command to list all your active Codespaces. This will help you find the name or ID of the Codespace you want to stop.
```bash
gh codespace list
```
### ii.) Stop the Codespace
Once you've identified the codespace you want to stop, use the following command, replacing `<codespace_name_or_id>` with the actual name or ID of your Codespace:
```bash
gh codespace stop -c <codespace_name_or_id>
```
Here is a sample command:
```
gh codespace stop -c miniature-xylophone-wxq5v5pxx5gf57wp
```
Running the above command will kill the session and effectively stop and exit your GitHub Codespace, ensuring that you are not incurring unnecessary usage or costs.
Once you have run the command above, you can safely close the browser.
## Final Thoughts
GitHub Codespace is a game changer, providing a simplified, cloud-based development environment accessible directly from the browser. By following the outlined steps in this guide, developers and cloud enthusiasts can quickly set up and configure their workspace, install necessary tools, and seamlessly push changes to GitHub. | paschalogu |
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