Trait AsyncRemoteSource 

pub trait AsyncRemoteSource:
    Send
    + Sync
    + 'static {
    // Required methods
    fn fetch(
        &self,
    ) -> Pin<Box<dyn Future<Output = Result<Fetched, Error>> + Send + '_>>;
    fn describe(&self) -> String;
}

Available on crate feature async only.

A remote store that is read asynchronously.

The right trait for a client that is async to begin with — etcd speaks gRPC and NATS is a streaming protocol, so both are. Used through refresh_remote_async().await.

The lifetime-bound boxed future rather than async fn: this trait is object-safe on purpose, so a configuration type can hold one without being generic over it.

Required Methods

fn fetch( &self, ) -> Pin<Box<dyn Future<Output = Result<Fetched, Error>> + Send + '_>>

Reads the current document.

Errors

As RemoteSource::fetch.

fn describe(&self) -> String

How to name this source in an error or a report.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors