Desenvolvimento e design de software

// Async web server - Rust + tokio
use tokio::net::TcpListener;
use tokio::io::{AsyncReadExt, AsyncWriteExt};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let listener = TcpListener::bind("127.0.0.1:8080").await?;

    loop {
        let (mut socket, _) = listener.accept().await?;
        tokio::spawn(async move {
            let mut buf = [0; 1024];
            let n = socket.read(&mut buf).await.unwrap();
            socket.write_all(&buf[..n]).await.unwrap();
        });
    }
}