Trait Handler 

pub trait Handler<A, B> {
    type Error;
    type Fut: Future<Output = Result<B, Self::Error>>;

    // Required method
    fn call(&mut self, event: A, context: Context) -> Self::Fut;
}

A trait describing an asynchronous function A to B.

Required Associated Types

type Error

Errors returned by this handler.

type Fut: Future<Output = Result<B, Self::Error>>

Response of this handler.

Required Methods

fn call(&mut self, event: A, context: Context) -> Self::Fut

Handle the incoming event.

Implementors

impl<F, A, B, Error, Fut> Handler<A, B> for HandlerFn<F>

where F: Fn(A, Context) -> Fut, Fut: Future<Output = Result<B, Error>> + Send, Error: Into<Box<dyn Error + Send + Sync + 'static>> + Display,

type Error = Error

type Fut = Fut