https://github.com/snapview/tokio-tungstenite

see examples: https://github.com/snapview/tokio-tungstenite/tree/master/examples

1. 先理解它到底是什么
2. 再跑最小 client / server
3. 再学 Stream / Sink 这两个核心抽象
4. 最后再看握手、header、TLS、心跳、拆分读写这些进阶点

从 docs.rs

todo

• echo server

  ws server echo what client send

• cli client

  read message for client stdin, and send to ws server. print this message in server cli

• server (主动) push，

  不等客户端先发

Practice

cargo new rust-websocket
cd rust-websocket

cargo add tokio --features full
cargo add tokio-tungstenite
cargo add futures-util
cargo add anyhow
cargo add futures-channel log env_logger