rama_http_backend/server/layer/upgrade/
layer.rs

1use super::{service::UpgradeHandler, UpgradeService, Upgraded};
2use rama_core::{matcher::Matcher, Context, Layer, Service};
3use rama_http_types::Request;
4use std::{convert::Infallible, fmt, sync::Arc};
5
6/// UpgradeLayer is a middleware that can be used to upgrade a request.
7///
8/// See [`UpgradeService`] for more details.
9///
10/// [`UpgradeService`]: crate::server::layer::upgrade::UpgradeService
11pub struct UpgradeLayer<S, O> {
12    handlers: Vec<Arc<UpgradeHandler<S, O>>>,
13}
14
15impl<S, O> UpgradeLayer<S, O> {
16    /// Create a new upgrade layer.
17    pub fn new<M, R, H>(matcher: M, responder: R, handler: H) -> Self
18    where
19        M: Matcher<S, Request>,
20        R: Service<S, Request, Response = (O, Context<S>, Request), Error = O> + Clone,
21        H: Service<S, Upgraded, Response = (), Error = Infallible> + Clone,
22    {
23        Self {
24            handlers: vec![Arc::new(UpgradeHandler::new(matcher, responder, handler))],
25        }
26    }
27
28    /// Add an extra upgrade handler to the layer.
29    pub fn on<M, R, H>(mut self, matcher: M, responder: R, handler: H) -> Self
30    where
31        M: Matcher<S, Request>,
32        R: Service<S, Request, Response = (O, Context<S>, Request), Error = O> + Clone,
33        H: Service<S, Upgraded, Response = (), Error = Infallible> + Clone,
34    {
35        self.handlers
36            .push(Arc::new(UpgradeHandler::new(matcher, responder, handler)));
37        self
38    }
39}
40
41impl<S, O> fmt::Debug for UpgradeLayer<S, O> {
42    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
43        f.debug_struct("UpgradeLayer")
44            .field("handlers", &self.handlers)
45            .finish()
46    }
47}
48
49impl<S, O> Clone for UpgradeLayer<S, O> {
50    fn clone(&self) -> Self {
51        Self {
52            handlers: self.handlers.clone(),
53        }
54    }
55}
56
57impl<S, State, O> Layer<S> for UpgradeLayer<State, O> {
58    type Service = UpgradeService<S, State, O>;
59
60    fn layer(&self, inner: S) -> Self::Service {
61        UpgradeService::new(self.handlers.clone(), inner)
62    }
63}
rama_http_backend/server/layer/upgrade/layer.rs

rama_http_backend/server/layer/upgrade/
layer.rs
