# Flask React SPA

### Status

## React v16 Frontend

The frontend is heavily inspired by react boilerplate, and indeed borrows a good chunk of boilerplate from it.

- React Router v4
- Redux, Redux-Saga and Redux-Form for handling state and side effects
- Webpack 3 and Babel 6
   - Hot Module Reloading
   - Tree Shaking
   - Code Splitting (asynchronous components via react-loadable)

Entry point is at `frontend/app/index.js`.

## Flask Backend

- SQLAlchemy ORM with Flask-SQLAlchemy and migrations provided by Flask-Alembic
- RESTful APIs provided by a customized integration between Flask-RESTful and Flask-Marshmallow
- Flask-Security provides authentication, authorization, registration and change/forgot password functionality
   - User session management via Flask-Login
   - User permissions and roles via Flask-Principal
   - Secrets encryption via passlib and itsdangerous
   - CSRF protection via Flask-WTF
- Flask-Admin integrated for painless model CRUD administration
- Flask-Session for server-side sessions
- Celery for asynchronous tasks, such as sending emails via Flask-Mail

The backend is structured using the Application Factory Pattern, in conjunction with a little bit of declarative configuration in `backend/config.py` (for ordered registration of extensions, and auto-detection of views, models, serializers, model admins and cli commands). The entry point is the `create_app()` method in `backend/app.py` (`wsgi.py` in production).

## Ansible Production Deployment

- CentOS/RHEL 7.x
- Python 3.6 (provided by the IUS Project)
- PostgreSQL 9.6
- Redis 3.2
- NGINX + uWSGI + supervisord
- Lets Encrypt HTTPS
- Email sending via Postfix with SSL and OpenDKIM

## Local Development QuickStart:

### Using docker-compose

Dependencies:

- `docker` and `docker-compose` (at least docker engine v1.13)

```bash
# install
$ git clone git@github.com:briancappello/flask-react-spa.git
$ cd flask-react-spa

# configure (the defaults are fine for development)
$ edit `backend/config.example.py` and save as `backend/config.py`
$ edit `frontend/app/config.example.js` and save as `frontend/app/config.js`

# run it
$ docker-compose up --build  # grab a coffee; bootstrapping takes a while the first time
```

Once it's done building and everything has booted up:

- Access the app at: http://localhost:8888
- Access MailHog at: http://localhost:8025
- Access the docs at: http://localhost:5500
- Webpack Bundle Analyzer: http://localhost:5555
- The API (eg for testing with CURL): http://localhost:5000
- And last but not least, the database is exposed on port 5442

### Running locally

This assumes you're on a reasonably standard \*nix system. Windows *might* work if you know what you're doing, but you're on your own there.

Dependencies:

- Python 3.6+
- Your virtualenv tool of choice (strongly recommended)
- PostgreSQL or MariaDB (MySQL)
- Redis (used for sessions persistence and the Celery tasks queue)
- node.js & npm (v6 or later recommended, only required for development)
- MailHog (not required, but it's awesome for testing email related tasks)

```bash
# install
$ git clone git@github.com:briancappello/flask-react-spa.git
$ cd flask-react-spa
$ mkvirtualenv -p /path/to/python3 flask_react_spa
$ pip install -r requirements.txt
$ pip install -r requirements-dev.txt  # for tests and sphinx docs

# configure
$ edit `backend/config.example.py` and save as `backend/config.py`
$ edit `frontend/app/config.example.js` and save as `frontend/app/config.js`

# set up database
$ sudo -u postgres -i psql
postgres=# CREATE USER flask_api WITH PASSWORD 'flask_api';
postgres=# CREATE DATABASE flask_api;
postgres=# GRANT ALL PRIVILEGES ON DATABASE flask_api TO flask_api;
postgres=# \q  # (quit)

# run db migrations
$ python manage.py db upgrade

# load db fixtures (optional)
$ python manage.py db fixtures fixtures.json

# frontend dev server:
$ npm install
$ npm run start

# backend dev server:
$ python manage.py run

# backend celery workers:
$ python manage.py celery worker
$ python manage.py celery beat
```

## Full Documentation

Run `make docs` and browse to http://localhost:5500

Sources are in the `/docs` folder.

FIXME: publish to GitHub Pages.

## License

MIT