Trait ServiceBuilderExt

pub trait ServiceBuilderExt<L>: Sealed<L> + Sized {
    // Required methods
    fn map_response_body<F>(
        self,
        f: F,
    ) -> ServiceBuilder<Stack<MapResponseBodyLayer<F>, L>>;
    fn trace_for_http(
        self,
    ) -> ServiceBuilder<Stack<TraceLayer<HttpMakeClassifier>, L>>;
    fn trace_for_grpc(
        self,
    ) -> ServiceBuilder<Stack<TraceLayer<GrpcMakeClassifier>, L>>;
}

Extension trait that adds methods to tower::ServiceBuilder for adding middleware from tower-http.

Example

use http::{Request, Response, header::HeaderName};
use bytes::Bytes;
use http_body_util::Full;
use std::{time::Duration, convert::Infallible};
use tower::{ServiceBuilder, ServiceExt, Service};
use tower_http::ServiceBuilderExt;

async fn handle(request: Request<Full<Bytes>>) -> Result<Response<Full<Bytes>>, Infallible> {
    Ok(Response::new(Full::default()))
}

let service = ServiceBuilder::new()
    // Methods from tower
    .timeout(Duration::from_secs(30))
    // Methods from tower-http
    .trace_for_http()
    .propagate_header(HeaderName::from_static("x-request-id"))
    .service_fn(handle);

Required Methods

fn map_response_body<F>( self, f: F, ) -> ServiceBuilder<Stack<MapResponseBodyLayer<F>, L>>

Apply a transformation to the response body.

See tower_http::map_response_body for more details.

fn trace_for_http( self, ) -> ServiceBuilder<Stack<TraceLayer<HttpMakeClassifier>, L>>

High level tracing that classifies responses using HTTP status codes.

This method does not support customizing the output, to do that use TraceLayer instead.

See tower_http::trace for more details.

fn trace_for_grpc( self, ) -> ServiceBuilder<Stack<TraceLayer<GrpcMakeClassifier>, L>>

High level tracing that classifies responses using gRPC headers.

This method does not support customizing the output, to do that use TraceLayer instead.

See tower_http::trace for more details.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<L> ServiceBuilderExt<L> for ServiceBuilder<L>

fn map_response_body<F>( self, f: F, ) -> ServiceBuilder<Stack<MapResponseBodyLayer<F>, L>>

fn trace_for_http( self, ) -> ServiceBuilder<Stack<TraceLayer<HttpMakeClassifier>, L>>

fn trace_for_grpc( self, ) -> ServiceBuilder<Stack<TraceLayer<GrpcMakeClassifier>, L>>

Implementors