Struct JwtLayer 

pub struct JwtLayer { /* private fields */ }

Tower Layer that installs JWT authentication on a route.

For each request the middleware:

1. Tries each TokenSource in order; returns 401 if none yields a token.
2. Decodes and validates the token with JwtDecoder; returns 401 on failure.
3. Inserts Claims into request extensions for handler extraction.
4. When constructed via JwtLayer::from_service, also performs a stateful database row lookup: hashes the jti claim and reads the session row, inserting the transport-agnostic Session into extensions. Returns 401 if the row is missing (logged-out / revoked).

The default token source is BearerSource (Authorization: Bearer <token>).

Implementations

impl JwtLayer

pub fn new(decoder: JwtDecoder) -> Self

Creates a JwtLayer with BearerSource as the sole token source.

This constructor performs stateless JWT validation only (signature + claims). No database row lookup is performed. Use JwtLayer::from_service for stateful validation that also inserts Session into request extensions.

pub fn from_service(service: JwtSessionService) -> Self

Creates a JwtLayer backed by a JwtSessionService.

After JWT signature/claims validation the middleware hashes the jti claim, looks up the session row in the database, and inserts the transport-agnostic Session into request extensions. Returns 401 with auth:session_not_found when the session row is absent (logged-out or revoked).

Use JwtSessionService::layer as the primary entry-point; this constructor is the lower-level building block.

pub fn with_sources(self, sources: Vec<Arc<dyn TokenSource>>) -> Self

Replaces the token sources with the provided list.

Sources are tried in order; the first to return Some is used.

Trait Implementations

impl Clone for JwtLayer

fn clone(&self) -> JwtLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Svc> Layer<Svc> for JwtLayer

type Service = JwtMiddleware<Svc>

The wrapped service

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

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