2021-05-30 14:33:20 +02:00
|
|
|
use bytes::Bytes;
|
2021-06-01 00:34:09 +02:00
|
|
|
use http::{Request, StatusCode};
|
2021-05-30 14:33:20 +02:00
|
|
|
use hyper::Server;
|
|
|
|
|
use std::{
|
|
|
|
|
collections::HashMap,
|
|
|
|
|
net::SocketAddr,
|
|
|
|
|
sync::{Arc, Mutex},
|
|
|
|
|
time::Duration,
|
|
|
|
|
};
|
|
|
|
|
use tower::{make::Shared, ServiceBuilder};
|
|
|
|
|
use tower_http::{
|
|
|
|
|
add_extension::AddExtensionLayer, compression::CompressionLayer, trace::TraceLayer,
|
|
|
|
|
};
|
2021-06-01 15:07:16 +02:00
|
|
|
use tower_web::{
|
|
|
|
|
body::Body,
|
|
|
|
|
extract::{BytesMaxLength, Extension, UrlParams},
|
2021-06-04 01:00:48 +02:00
|
|
|
get, route, Handler,
|
2021-06-01 15:07:16 +02:00
|
|
|
};
|
2021-05-30 14:33:20 +02:00
|
|
|
|
|
|
|
|
#[tokio::main]
|
|
|
|
|
async fn main() {
|
|
|
|
|
tracing_subscriber::fmt::init();
|
|
|
|
|
|
|
|
|
|
// build our application with some routes
|
2021-06-04 01:00:48 +02:00
|
|
|
let app = route(
|
|
|
|
|
"/:key",
|
|
|
|
|
get(kv_get.layer(CompressionLayer::new())).post(kv_set),
|
|
|
|
|
);
|
2021-05-30 14:33:20 +02:00
|
|
|
|
|
|
|
|
// add some middleware
|
|
|
|
|
let app = ServiceBuilder::new()
|
|
|
|
|
.timeout(Duration::from_secs(10))
|
|
|
|
|
.layer(TraceLayer::new_for_http())
|
|
|
|
|
.layer(AddExtensionLayer::new(SharedState::default()))
|
|
|
|
|
.service(app);
|
|
|
|
|
|
|
|
|
|
// 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();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
type SharedState = Arc<Mutex<State>>;
|
|
|
|
|
|
|
|
|
|
#[derive(Default)]
|
|
|
|
|
struct State {
|
|
|
|
|
db: HashMap<String, Bytes>,
|
|
|
|
|
}
|
|
|
|
|
|
2021-06-04 01:00:48 +02:00
|
|
|
async fn kv_get(
|
2021-05-30 14:33:20 +02:00
|
|
|
_req: Request<Body>,
|
2021-06-01 15:07:16 +02:00
|
|
|
UrlParams((key,)): UrlParams<(String,)>,
|
|
|
|
|
Extension(state): Extension<SharedState>,
|
2021-06-01 00:34:09 +02:00
|
|
|
) -> Result<Bytes, StatusCode> {
|
2021-05-30 14:33:20 +02:00
|
|
|
let db = &state.lock().unwrap().db;
|
|
|
|
|
|
2021-05-30 16:53:27 +02:00
|
|
|
if let Some(value) = db.get(&key) {
|
2021-05-30 14:33:20 +02:00
|
|
|
Ok(value.clone())
|
|
|
|
|
} else {
|
2021-06-01 00:34:09 +02:00
|
|
|
Err(StatusCode::NOT_FOUND)
|
2021-05-30 14:33:20 +02:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2021-06-04 01:00:48 +02:00
|
|
|
async fn kv_set(
|
2021-05-30 14:33:20 +02:00
|
|
|
_req: Request<Body>,
|
2021-06-01 15:07:16 +02:00
|
|
|
UrlParams((key,)): UrlParams<(String,)>,
|
|
|
|
|
BytesMaxLength(value): BytesMaxLength<{ 1024 * 5_000 }>, // ~5mb
|
|
|
|
|
Extension(state): Extension<SharedState>,
|
2021-05-31 22:54:21 +02:00
|
|
|
) {
|
2021-06-01 15:07:16 +02:00
|
|
|
state.lock().unwrap().db.insert(key, value);
|
2021-05-30 14:33:20 +02:00
|
|
|
}
|
