axum/examples/hello_world.rs
2021-06-06 11:37:08 +02:00

32 lines
1,012 B
Rust

use http::{Request, StatusCode};
use hyper::Server;
use std::net::SocketAddr;
use tower::make::Shared;
use tower_web::{body::Body, extract, get, response, route, AddRoute};
#[tokio::main]
async fn main() {
tracing_subscriber::fmt::init();
// build our application with some routes
let app = route("/", get(handler)).route("/greet/:name", get(greet));
// run it with hyper
let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
tracing::debug!("listening on {}", addr);
let server = Server::bind(&addr).serve(Shared::new(app));
server.await.unwrap();
}
async fn handler(_req: Request<Body>) -> response::Html<&'static str> {
response::Html("<h1>Hello, World!</h1>")
}
async fn greet(_req: Request<Body>, params: extract::UrlParamsMap) -> Result<String, StatusCode> {
if let Some(name) = params.get("name") {
Ok(format!("Hello {}!", name))
} else {
// if the route matches "name" will be present
Err(StatusCode::INTERNAL_SERVER_ERROR)
}
}