Trait jsonrpc_core::middleware::Middleware [−][src]
pub trait Middleware<M: Metadata>: Send + Sync + 'static { type Future: Future<Output = Option<Response>> + Send + 'static; type CallFuture: Future<Output = Option<Output>> + Send + 'static; fn on_request<F, X>(
&self,
request: Request,
meta: M,
next: F
) -> Either<Self::Future, X>
where
F: Fn(Request, M) -> X + Send + Sync,
X: Future<Output = Option<Response>> + Send + 'static, { ... } fn on_call<F, X>(
&self,
call: Call,
meta: M,
next: F
) -> Either<Self::CallFuture, X>
where
F: Fn(Call, M) -> X + Send + Sync,
X: Future<Output = Option<Output>> + Send + 'static, { ... } }
Expand description
RPC middleware
Associated Types
Provided methods
Method invoked on each request. Allows you to either respond directly (without executing RPC call) or do any additional work before and/or after processing the request.
Method invoked on each call inside a request.
Allows you to either handle the call directly (without executing RPC call).
Implementations on Foreign Types
type CallFuture = Either<A::CallFuture, B::CallFuture>
impl<M: Metadata, A: Middleware<M>, B: Middleware<M>, C: Middleware<M>> Middleware<M> for (A, B, C)
[src]
impl<M: Metadata, A: Middleware<M>, B: Middleware<M>, C: Middleware<M>> Middleware<M> for (A, B, C)
[src]type CallFuture = Either<A::CallFuture, Either<B::CallFuture, C::CallFuture>>
impl<M: Metadata, A: Middleware<M>, B: Middleware<M>, C: Middleware<M>, D: Middleware<M>> Middleware<M> for (A, B, C, D)
[src]
impl<M: Metadata, A: Middleware<M>, B: Middleware<M>, C: Middleware<M>, D: Middleware<M>> Middleware<M> for (A, B, C, D)
[src]type CallFuture = Either<A::CallFuture, Either<B::CallFuture, Either<C::CallFuture, D::CallFuture>>>
Implementors
type Future = NoopFuture
type CallFuture = NoopCallFuture