6 replies

Returning a Response from Middleware to Short Circuit Middleware Chain

How do I correctly return a response from a middleware and short circuit the chain of middlewares?

const shortCircuit = Http.middleware.make((_httpApp) =>
  Effect.succeed(Http.response.empty({ status: 401 }))
);

const shortCircuit = Http.middleware.make((_httpApp) =>
  Effect.succeed(Http.response.empty({ status: 401 }))
);

The above does not work. Requests just keep hanging. If I return the

_httpApp

_httpApp

, it successfully passes the control down to the next middleware. As far as I understand, a

Middleware

Middleware

is just a function that takes an

App.Default

App.Default

and returns an

App.Default

App.Default

. And an

App.Default

App.Default

is just an Effect that succeeds with a

ServerResponse

ServerResponse

Effect.Effect<R | ServerRequest.ServerRequest, E, ServerResponse>

Effect.Effect<R | ServerRequest.ServerRequest, E, ServerResponse>

.

I'm failing to see why

Effect.succeed(Http.response.empty({ status: 401 }))

Effect.succeed(Http.response.empty({ status: 401 }))

would not be a correct

App.Default

App.Default

. The compiler is happy, it just doesn't work at runtime.