use std::{ convert::Infallible, error::Error, sync::Arc, time::Duration, }; use hyper::{ StatusCode, Uri, }; use reqwest::{ Body, Client, }; use tokio::{ fs::File, io::AsyncReadExt, sync::mpsc::{ channel, Receiver, }, time::delay_for, }; #[tokio::main] async fn main () -> Result <(), Box > { let client = Arc::new (Client::new ()); let mut backoff_delay = 0; loop { if backoff_delay > 0 { delay_for (Duration::from_millis (backoff_delay)).await; } let _uri = Uri::builder () .scheme ("http") .authority ("127.0.0.1:4000") .path_and_query ("/http_listen/alien_wildlands") .build ().unwrap (); let req_req = client.get ("http://127.0.0.1:4000/http_listen/alien_wildlands"); println! ("Step 1"); let req_resp = match req_req.send ().await { Err (e) => { println! ("Err: {:?}", e); backoff_delay = backoff_delay * 2 + 500; continue; }, Ok (r) => { backoff_delay = 0; r }, }; if req_resp.status () != StatusCode::OK { continue; } println! ("Step 3"); let body = req_resp.bytes ().await?; let body = String::from (std::str::from_utf8 (&body)?); println! ("Client requested {}", body); println! ("Step 4/5"); let payload = String::from ("Ha ha hue hue it worked.\n"); println! ("Step 6"); let client = client.clone (); tokio::spawn (async move { let resp_req = Uri::builder () .scheme ("http") .authority ("127.0.0.1:4000") .path_and_query ("/listen/alien_wildlands") .build ().unwrap (); let (tx, rx) = channel (2); //let rx: Receiver > = rx; tokio::spawn (async move { let path = "/home/user/videos/Hidden_-_A_Gender_-_by_Kate_Bornstein-fFD8NpA3hec.mp4"; let mut f = File::open (path).await.unwrap (); let mut tx = tx; loop { let mut buffer = vec! [0u8; 256]; let bytes_read = f.read (&mut buffer).await.unwrap (); buffer.truncate (bytes_read); if bytes_read == 0 { break; } tx.send (Ok::<_, Infallible> (buffer)).await; } }); let resp_req = client.post (&format! ("http://127.0.0.1:4000/http_response/{}", body)).body (Body::wrap_stream (rx)); println! ("Step 6"); match resp_req.send ().await { Err (e) => { println! ("Err: {:?}", e); }, Ok (_) => (), } }); } }