An argument for 'invokeMiddleware' was not provided

Question

I got this error while implementing loopback4 authentication.

    constructor (
    // ---- ADD THIS LINE ------
    @inject(AuthenticationBindings.AUTH_ACTION)
    protected authenticateRequest: AuthenticateFn,
    ) {
       super(authenticateRequest);
    }

Answer 1

This answer was taken from the community Slack channel

As per-the documentation (permalink), modifying src/sequence.ts is only meant for the now-deprecated Action-based Sequences, and not required for Middleware-based Sequences which are used by default on newly-generated LoopBack 4 projects.

How to identify the "sequence type"

The class signature will hint at which sequence type is being used:

// Action-based sequence
class MySequence extends DefaultSequence {/* ... */}

// Middleware-based Sequence
class MySequence extends MiddlewareSequence {/* ... */}