| ## Description | |
| A basic chat application with logs demonstrating libp2p and the gossipsub protocol combined with mDNS for the discovery of peers to gossip with. | |
| It showcases how peers can connect, discover each other using mDNS, and engage in real-time chat sessions. | |
| ## Usage | |
| 1. Using two terminal windows, start two instances, typing the following in each: | |
| ```sh | |
| cargo run | |
| ``` | |
| 2. Mutual mDNS discovery may take a few seconds. When each peer does discover the other | |
| it will print a message like: | |
| ```sh | |
| mDNS discovered a new peer: {peerId} | |
| ``` | |
| 3. Type a message and hit return: the message is sent and printed in the other terminal. | |
| 4. Close with `Ctrl-c`. You can open more terminal windows and add more peers using the same line above. | |
| When a new peer is discovered through mDNS, it can join the conversation, and all peers will receive messages sent by that peer. | |
| If a participant exits the application using `Ctrl-c` or any other method, the remaining peers will receive an mDNS expired event and remove the expired peer from their list of known peers. | |
| ## Conclusion | |
| This chat application demonstrates the usage of **libp2p** and the gossipsub protocol for building a decentralized chat system. | |
| By leveraging mDNS for peer discovery, users can easily connect with other peers and engage in real-time conversations. | |
| The example provides a starting point for developing more sophisticated chat applications using **libp2p** and exploring the capabilities of decentralized communication. | |