middleware library

Classes

SomeErrorThrower

Selects which tracked error some(...) should throw after all candidates fail.

Functions

every(Iterable<Middleware> middlewares) → Middleware

Creates middleware that runs the provided middleware in order.

except(Middleware middleware, bool when(Event event)) → Middleware

Creates middleware that skips middleware when when returns true.

requestId({String headerName = 'x-request-id', FutureOr<String> generator(Event event)?, bool trustIncoming = true}) → Middleware

Creates middleware that provides a request ID for the current request.

some(Iterable<Middleware> middlewares, {SomeErrorThrower createThrower()?}) → Middleware

Creates middleware that tries candidates in order until one succeeds.

timing({String metricName = 'app', int fractionDigits = 1}) → Middleware

Creates middleware that records downstream request handling time.

useRequestId(Event event) → String?

Returns the request ID selected for the current request, if available.