Trait jsonrpc_core::Middleware

pub trait Middleware<M: Metadata>: Send + Sync + 'static {
    fn on_request<F>(
        &self, 
        request: Request, 
        meta: M, 
        next: F
    ) -> FutureResponse
    where
        F: FnOnce(Request, M) -> FutureResponse;
}

RPC middleware

Required Methods

fn on_request<F>(&self, request: Request, meta: M, next: F) -> FutureResponse where
    F: FnOnce(Request, M) -> FutureResponse, 

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.

Implementors

• impl<M: Metadata> Middleware<M> for Noop
• impl<M: Metadata, A: Middleware<M>, B: Middleware<M>> Middleware<M> for (A, B)
• impl<M: Metadata, A: Middleware<M>, B: Middleware<M>, C: Middleware<M>> Middleware<M> for (A, B, C)
• impl<M: Metadata, A: Middleware<M>, B: Middleware<M>, C: Middleware<M>, D: Middleware<M>> Middleware<M> for (A, B, C, D)