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use std::convert::Infallible;
use askama::Template;
use hyper::body::to_bytes;
use hyper::http::response::Builder;
use hyper::{Body, Client, Request, Response, Server};
use routerify::ext::RequestExt;
use routerify::{Router, RouterService};
#[derive(Template)]
#[template(path = "hello.html")]
struct HelloTemplate<'a, N>
where
N: std::fmt::Display,
{
name: &'a N,
}
async fn hello_handler(req: Request<Body>) -> Result<Response<Body>, Infallible> {
let name = req.param("name").unwrap();
let template = &HelloTemplate { name: &name };
Ok(template.into())
}
async fn try_body_handler(req: Request<Body>) -> Result<Response<Body>, Infallible> {
let name = req.param("name").unwrap();
let template = &HelloTemplate { name: &name };
Ok(Builder::new().body(template.try_into().unwrap()).unwrap())
}
fn router() -> Router<Body, Infallible> {
Router::builder()
.get("/hello/:name", hello_handler)
.get("/try_body/:name", try_body_handler)
.build()
.unwrap()
}
#[tokio::test]
async fn test_hyper() {
let addr = ([127, 0, 0, 1], 0).into();
let service = RouterService::new(router()).expect("Could not create service");
let server = Server::bind(&addr).serve(service);
let local_addr = server.local_addr();
let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel::<()>();
let serve = async move {
let server = server.with_graceful_shutdown(async { while rx.recv().await.is_some() {} });
server.await.expect("Could not serve");
};
let hello_tx = tx.clone();
let hello_query = async move {
let uri = format!("http://{local_addr}/hello/world")
.parse()
.expect("Could not format URI");
let client = Client::new();
let res = client.get(uri).await.expect("Could not query client");
assert_eq!(res.status(), hyper::StatusCode::OK);
let content_type = res
.headers()
.get("content-type")
.expect("Response did not contain content-type header")
.to_str()
.expect("Content-type was not a UTF-8 string");
assert_eq!(content_type, mime::TEXT_HTML_UTF_8.to_string());
let body = to_bytes(res).await.expect("No body returned");
let body = std::str::from_utf8(&body).expect("Body was not UTF-8");
assert_eq!(body, "Hello, world!");
hello_tx.send(()).unwrap();
};
let try_body_query = async move {
let uri = format!("http://{local_addr}/try_body/world")
.parse()
.expect("Could not format URI");
let client = Client::new();
let res = client.get(uri).await.expect("Could not query client");
assert_eq!(res.status(), hyper::StatusCode::OK);
let body = to_bytes(res).await.expect("No body returned");
let body = std::str::from_utf8(&body).expect("Body was not UTF-8");
assert_eq!(body, "Hello, world!");
tx.send(()).unwrap();
};
tokio::join!(serve, try_body_query, hello_query);
}
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