Module tower::util

Various utility types and functions that are generally used with Tower.

Modules

error

Error types

future

Future types

Structs

AndThen

Service returned by the and_then combinator.

AndThenLayer

A Layer that produces a AndThen service.

BoxLayer

A boxed Layer trait object.

BoxService

A boxed Service + Send trait object.

CallAll

This is a Stream of responses resulting from calling the wrapped Service for each request received on the wrapped Stream.

CallAllUnordered

A stream of responses received from the inner service in received order.

FutureService

A type that implements Service for a Future that produces a Service.

MapErr

Service returned by the map_err combinator.

MapErrLayer

A Layer that produces MapErr services.

MapFuture

Service returned by the map_future combinator.

MapFutureLayer

A Layer that produces a MapFuture service.

MapRequest

Service returned by the MapRequest combinator.

MapRequestLayer

A Layer that produces MapRequest services.

MapResponse

Service returned by the map_response combinator.

MapResponseLayer

A Layer that produces a MapResponse service.

MapResult

Service returned by the map_result combinator.

MapResultLayer

A Layer that produces a MapResult service.

Oneshot

A Future consuming a Service and request, waiting until the Service is ready, and then calling Service::call with the request, and waiting for that Future.

Optional

Optionally forwards requests to an inner service.

Ready

A future that yields a mutable reference to the service when it is ready to accept a request.

ReadyOneshot

A Future that yields the service when it is ready to accept a request.

ServiceFn

A Service implemented by a closure.

Then

Service returned by the then combinator.

ThenLayer

A Layer that produces a Then service.

UnsyncBoxService

A boxed Service trait object.

Enums

Either

Combine two different service types into a single type.

Traits

ServiceExt

An extension trait for Services that provides a variety of convenient adapters

Functions

future_service

Returns a new FutureService for the given future.

option_layer

Convert an Option<Layer> into a Layer.

service_fn

Returns a new ServiceFn with the given closure.

Type Definitions

ReadyAndDeprecated

A future that yields a mutable reference to the service when it is ready to accept a request.