Struct ValidatedRequestIdLayer 

pub struct ValidatedRequestIdLayer { /* private fields */ }

Tower layer that validates, generates, stores, and propagates request IDs.

Valid inbound request IDs are UUID v4 strings. With RequestIdMode::Strict, malformed inbound IDs receive 400 Bad Request. With RequestIdMode::Permissive, malformed inbound IDs are replaced with a generated ID. Generated IDs are UUID v4 by default.

On accepted requests, the final ID is inserted into the configured request header, added to request extensions through RequestContext, and copied to the response header if the inner service did not set one. Use crate::middleware::request_context_layer after this layer when you want the context enriched with route and correlation fields before handlers run.

Implementations

impl ValidatedRequestIdLayer

pub fn new(config: RequestIdConfig) -> Self

Creates a validated request ID layer from typed config.

Trait Implementations

impl Clone for ValidatedRequestIdLayer

fn clone(&self) -> ValidatedRequestIdLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidatedRequestIdLayer

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

Formats the value using the given formatter.

impl<S> Layer<S> for ValidatedRequestIdLayer

type Service = ValidatedRequestIdService<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.