Struct ProblemJsonLayer 

pub struct ProblemJsonLayer;

Tower Layer that maps inner-service errors into Problem+JSON HTTP responses.

Any Err propagated from the inner service is converted to an ApiError via the Into<ApiError> bound and then serialized as application/problem+json.

Successful responses are passed through unchanged.

Example

use api_bones_tower::ProblemJsonLayer;
use tower::ServiceBuilder;

let _svc = ServiceBuilder::new()
    .layer(ProblemJsonLayer::new())
    .service(tower::service_fn(|_req: http::Request<()>| async {
        Ok::<_, api_bones::ApiError>(http::Response::new(String::new()))
    }));

Implementations

impl ProblemJsonLayer

pub fn new() -> Self

Create a new ProblemJsonLayer.

Trait Implementations

impl Clone for ProblemJsonLayer

fn clone(&self) -> ProblemJsonLayer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProblemJsonLayer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ProblemJsonLayer

fn default() -> ProblemJsonLayer

Returns the “default value” for a type.

impl<S> Layer<S> for ProblemJsonLayer

type Service = ProblemJsonService<S>

The wrapped service

fn layer(&self, inner: S) -> Self::Service

Wrap the given service with the middleware, returning a new service that has been decorated with the middleware.