Struct sc_rpc_server::RpcMiddleware

pub struct RpcMiddleware { /* fields omitted */ }

Middleware for RPC calls

Implementations

impl RpcMiddleware

pub fn new(metrics: RpcMetrics, transport_label: &str) -> Self

Create an instance of middleware.

• metrics: Will be used to report statistics.
• transport_label: The label that is used when reporting the statistics.

Trait Implementations

impl<M: Metadata> Middleware<M> for RpcMiddleware

type Future = FutureResponse

A returned request future.

type CallFuture = FutureOutput

A returned call future.

fn on_request<F, X>(
    &self,
    request: Request,
    meta: M,
    next: F
) -> Either<FutureResponse, X> where
    F: Fn(Request, M) -> X + Send + Sync,
    X: Future<Item = Option<Response>, Error = ()> + Send + 'static, 

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.

pub 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<Item = Option<Output>, Error = ()> + Send + 'static, 

Method invoked on each call inside a request.