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async-tungstenite/examples/tokio-echo.rs

30 lines
887 B

use async_tungstenite::{tokio::connect_async, tungstenite::Message};
use futures::prelude::*;
async fn run() -> Result<(), Box<dyn std::error::Error>> {
#[cfg(any(feature = "async-tls", feature = "tokio-tls"))]
let url = url::Url::parse("wss://echo.websocket.org").unwrap();
#[cfg(not(any(feature = "async-tls", feature = "tokio-tls")))]
let url = url::Url::parse("ws://echo.websocket.org").unwrap();
let (mut ws_stream, _) = connect_async(url).await?;
let text = "Hello, World!";
println!("Sending: \"{}\"", text);
ws_stream.send(Message::text(text)).await?;
let msg = ws_stream
.next()
.await
.ok_or_else(|| "didn't receive anything")??;
println!("Received: {:?}", msg);
Ok(())
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut rt = tokio::runtime::Runtime::new()?;
rt.block_on(run())
}