Simple Tokio Server

simple-tokio-server.rs

use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tokio::net::TcpListener;

#[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; 4096];
            match socket.read(&mut buf).await {
                // socket closed
                Ok(_) => {
                    socket.write_all(b"HTTP/1.1 200 OK\r\n\r\n").await?;
                }
                Err(e) => {
                    println!("{}", e);
                    return;
                }
            };
        });
    }
}