Simple Chat Server
A simple chat server written in Golang, with very basic features:
- Multiple chat rooms with historical data saved in mysql
- User can connect to the chat server
- User can set their name and choose to enter the chat room they want
- User can send message to the chat room
Protocol
For this excersie , I will use simple text-based message over TCP:
- All messages are terminated with
\n - To send a chat message, client will send:
SEND chat message- For now, chat message can not contain new line.
- To set client name, client will send:
NAME username- For now, username can not contain space
- To enter a chat room, client will send:
ROOM room- The history of chat room will be loaded after room setting. Users are allowed to switch between rooms during one login.
- Server will send the following command to all clients when there are new message:
MESSAGE username the actual message room date- The message will be also inserted to database
References
- https://gist.github.com/drewolson/3950226
- https://scotch.io/bar-talk/build-a-realtime-chat-server-with-go-and-websockets
- tui-go for chat client. tview may be a better option, but textare input is not available yet.
- https://github.com/nqbao/go-sandbox/tree/master/chatserver