How to Implement a WebSocket Client in Rust

Web
2026-04-17T12:05:42+00:00
Implement a WebSocket client in Rust using tokio-tungstenite to establish a real-time bidirectional connection.

Use the tokio-tungstenite crate to create an asynchronous WebSocket client that connects to a server and exchanges messages.

use tokio_tungstenite::connect_async;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let (ws_stream, _) = connect_async("ws://localhost:8080").await?;
    let (mut write, mut read) = ws_stream.split();
    // Send a message
    write.send(tungstenite::Message::Text("Hello".to_string())).await?;
    // Read a response
    if let Some(msg) = read.next().await {
        println!("Received: {:?}", msg?);
    }
    Ok(())
}