tsidea/simple_http_handle_request.rs

## simple_http_handle_request.rs
use hyper::header;

...

async fn handle_request(mut request: Request<Body>, remote_addr: SocketAddr) -> Result<Response<Body>, Infallible> {
    match (request.uri().path(), request.headers().contains_key(header::UPGRADE)) {
        //if the request is ws_echo and the request headers contains an Upgrade key
        ("/ws_echo", true) => {
            //handle websocket HERE
            ...

            //should return websocket response handshake here
            Ok::<_, Infallible>(Response::new(Body::empty()))
        },
        ("/ws_echo", false) => {
            //handle the case where the url is /ws_echo, but does not have an Upgrade field
            Ok(Response::new(Body::from(format!("Getting even warmer, \
                                                try connecting to this url \
                                                using a websocket client.\n"))))
        },
        (url@_, false) => {
            //handle any other url without an Upgrade header field
            Ok(Response::new(Body::from(format!("This {} url doesn't do \
                                                much, try accessing the \
                                                /ws_echo url instead.\n", url))))
        },
        (_, true) => {
            //handle any other url with an Upgrade header field
            Ok(Response::new(Body::from(format!("Getting warmer, but I'm \
                                                only letting you connect \
                                                via websocket over on \
                                                /ws_echo, try that url.\n"))))
        }
    }
}
	use hyper::header;

	...

	async fn handle_request(mut request: Request<Body>, remote_addr: SocketAddr) -> Result<Response<Body>, Infallible> {
	match (request.uri().path(), request.headers().contains_key(header::UPGRADE)) {
	//if the request is ws_echo and the request headers contains an Upgrade key
	("/ws_echo", true) => {
	//handle websocket HERE
	...

	//should return websocket response handshake here
	Ok::<_, Infallible>(Response::new(Body::empty()))
	},
	("/ws_echo", false) => {
	//handle the case where the url is /ws_echo, but does not have an Upgrade field
	Ok(Response::new(Body::from(format!("Getting even warmer, \
	try connecting to this url \
	using a websocket client.\n"))))
	},
	(url@_, false) => {
	//handle any other url without an Upgrade header field
	Ok(Response::new(Body::from(format!("This {} url doesn't do \
	much, try accessing the \
	/ws_echo url instead.\n", url))))
	},
	(_, true) => {
	//handle any other url with an Upgrade header field
	Ok(Response::new(Body::from(format!("Getting warmer, but I'm \
	only letting you connect \
	via websocket over on \
	/ws_echo, try that url.\n"))))
	}
	}
	}