Struct ApiResultLayer 

pub struct ApiResultLayer { /* private fields */ }

Actix-web middleware layer that auto-injects trace_id (and optionally timestamp) into ApiResult responses.

How it works

1. Extracts a trace ID from request headers (or generates a UUID v4)
2. Stores it in request extensions as ApiTraceId
3. The Responder impl for ApiResult<T> reads the extension and injects it

This approach is zero-overhead: no body re-serialization needed.

Usage

use actix_web::App;
use anycms_core::actix::ApiResultLayer;

App::new()
    .wrap(ApiResultLayer::default())
    .route("/users", web::get().to(list_users))

Implementations

impl ApiResultLayer

pub fn new(config: ApiResultMiddlewareConfig) -> Self

Create a new layer with the given configuration.

Trait Implementations

impl Default for ApiResultLayer

Available on crate feature actix only.

fn default() -> Self

Returns the “default value” for a type.

impl<S, B> Transform<S, ServiceRequest> for ApiResultLayer

where S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error> + 'static, S::Future: 'static, B: 'static,

Available on crate feature actix only.

type Response = ServiceResponse<B>

Responses produced by the service.

type Error = Error

Errors produced by the service.

type InitError = ()

Errors produced while building a transform service.

type Transform = ApiResultMiddleware<S>

The TransformService value created by this factory

type Future = Ready<Result<<ApiResultLayer as Transform<S, ServiceRequest>>::Transform, <ApiResultLayer as Transform<S, ServiceRequest>>::InitError>>

The future response value.

fn new_transform(&self, service: S) -> Self::Future

Creates and returns a new Transform component, asynchronously