Module middleware 

Built-in middleware. Each piece is an async function with the signature async fn(Request, Next) -> Result<Response>. Drop any of them into Router::middleware(...) in whatever order you want.

Structs

CorrelationId

Wrapper carried in the request context so handlers can pull it out via req.ctx().get::<CorrelationId>(). The inner string is the UUID rendered in hyphenated lowercase form.

CsrfGuard

A value a handler can pull out of the request context to embed in a rendered form. Lightweight; just wraps a string.

RateLimiter

Constants

CORRELATION_ID_HEADER

Response + request header name. Lower-case to keep parity with the HTTP/2 wire format and to match what other observability tooling (OpenTelemetry, Cloudflare, etc.) writes.

CSRF_HEADER

Functions

correlation_id

Middleware: attach a UUID v7 to every request, surface it in the response, and stash it in the request context for the audit pipeline to pick up.

csrf_protect

gzip

logger

rate_limit

The middleware function. Wrap a limiter into a closure and hand it to Router::middleware(...).

security_headers