How to pass argument to Class-based Middleware

[kkorus]

I have a custom class-based middleware. The question is how I can pass a custom argument to my middleware?

[MichalLytek]

For static arguments, you can wrap that into function:

export function CreateMyMiddleware(args: uknown[]) {
  return class MyMiddleware {
    // use args here
  }
}

and then provide the param:

@UseMiddleware(CreateMyMiddleware({ foo: "bar" })

If the argument is defined in runtime, you should attach it to the graphql context.

[kkorus]

Thanks,
It this going to work with middleware like:

@Service()
export class MyMiddleware implements MiddlewareInterface<Context> {
  constructor(private readonly service: Service) {}

  async use({ info, context }: ResolverData<Context>, next: NextFn) {
    // this.service.doSomeDbLogicHere()
    return next();
  }
}