[Question] Use nameof inside decorator

I’m using the inversify IOC container.

This is used in controllers’ action methods:

@httpGet("/:id")
public async getUser(@requestParam("id") id: number): Promise<User> {     // <----- "id"
  // ...
}

None of these things are available in that context: this, arguments, id.

Is there some trick to avoid that "id" magic string in the argument list?

---

A workaround:

const names = {
  getUser: {
    id: "id"
  }
};

And then: nameof(names.getUser.id). But that’s not ideal.

[dsherret]

@lonix1 I think ideally the library itself should be using reflect-metadata and then it should make the parameters default to implicitly have @requestParam("parameterNameGoesHere"). You may want to open an issue in their project and ask them if that’s possible.

I miss reflection too. I spend most of my time in c# code outside of ts/js.

[lonix1]

Thanks for telling me about ts-morph, it looks really cool!

Your idea of a compiler transform is really interesting, I’m going to play around with that and see if I can come up with something. In .net there is something “similar” (t4 templates) which are basically design-time code generators (code that generates code). Maybe that’s something I’ll look into.

I know I sound like every other newcomer to node, but… I really miss net/java’s reflection… especially in testing!

Thanks for all the tips. If I come up with something I’ll post back here!