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use std::error::Error;
use bytes::Bytes;
use h2::server::{self, SendResponse};
use h2::RecvStream;
use http::Request;
use tokio::net::{TcpListener, TcpStream};
#[tokio::main]
async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
let _ = env_logger::try_init();
let listener = TcpListener::bind("127.0.0.1:5928").await?;
println!("listening on {:?}", listener.local_addr());
loop {
if let Ok((socket, _peer_addr)) = listener.accept().await {
tokio::spawn(async move {
if let Err(e) = serve(socket).await {
println!(" -> err={:?}", e);
}
});
}
}
}
async fn serve(socket: TcpStream) -> Result<(), Box<dyn Error + Send + Sync>> {
let mut connection = server::handshake(socket).await?;
println!("H2 connection bound");
while let Some(result) = connection.accept().await {
let (request, respond) = result?;
tokio::spawn(async move {
if let Err(e) = handle_request(request, respond).await {
println!("error while handling request: {}", e);
}
});
}
println!("~~~~~~~~~~~ H2 connection CLOSE !!!!!! ~~~~~~~~~~~");
Ok(())
}
async fn handle_request(
mut request: Request<RecvStream>,
mut respond: SendResponse<Bytes>,
) -> Result<(), Box<dyn Error + Send + Sync>> {
println!("GOT request: {:?}", request);
let body = request.body_mut();
while let Some(data) = body.data().await {
let data = data?;
println!("<<<< recv {:?}", data);
let _ = body.flow_control().release_capacity(data.len());
}
let response = http::Response::new(());
let mut send = respond.send_response(response, false)?;
println!(">>>> send");
send.send_data(Bytes::from_static(b"hello "), false)?;
send.send_data(Bytes::from_static(b"world\n"), true)?;
Ok(())
}