mirror of
https://github.com/tokio-rs/axum.git
synced 2024-12-29 15:49:16 +01:00
72 lines
1.8 KiB
Rust
72 lines
1.8 KiB
Rust
use bytes::Bytes;
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use http::{Request, StatusCode};
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use hyper::Server;
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use std::{
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collections::HashMap,
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net::SocketAddr,
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sync::{Arc, Mutex},
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time::Duration,
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};
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use tower::{make::Shared, ServiceBuilder};
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use tower_http::{
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add_extension::AddExtensionLayer, compression::CompressionLayer, trace::TraceLayer,
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};
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use tower_web::{
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body::Body,
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extract::{BytesMaxLength, Extension, UrlParams},
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get, route, Handler,
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};
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#[tokio::main]
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async fn main() {
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tracing_subscriber::fmt::init();
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// build our application with some routes
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let app = route(
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"/:key",
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get(kv_get.layer(CompressionLayer::new())).post(kv_set),
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);
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// add some middleware
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let app = ServiceBuilder::new()
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.timeout(Duration::from_secs(10))
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.layer(TraceLayer::new_for_http())
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.layer(AddExtensionLayer::new(SharedState::default()))
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.service(app);
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// run it with hyper
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let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
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tracing::debug!("listening on {}", addr);
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let server = Server::bind(&addr).serve(Shared::new(app));
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server.await.unwrap();
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}
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type SharedState = Arc<Mutex<State>>;
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#[derive(Default)]
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struct State {
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db: HashMap<String, Bytes>,
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}
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async fn kv_get(
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_req: Request<Body>,
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UrlParams((key,)): UrlParams<(String,)>,
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Extension(state): Extension<SharedState>,
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) -> Result<Bytes, StatusCode> {
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let db = &state.lock().unwrap().db;
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if let Some(value) = db.get(&key) {
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Ok(value.clone())
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} else {
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Err(StatusCode::NOT_FOUND)
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}
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}
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async fn kv_set(
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_req: Request<Body>,
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UrlParams((key,)): UrlParams<(String,)>,
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BytesMaxLength(value): BytesMaxLength<{ 1024 * 5_000 }>, // ~5mb
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Extension(state): Extension<SharedState>,
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) {
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state.lock().unwrap().db.insert(key, value);
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}
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