Generated constructor data

Asked Dec 08 '20 at 10:14

Active Dec 08 '20 at 11:57

Viewed 164 times

I am using NSwag to generate a typescript client for a backend API. Ultimately, it ends up generating a method:

login(request: LoginRequest): Promise<AuthResponse>

This is fine, however the problem is with the LoginRequest constructor. It generates like so:

export class LoginRequest implements ILoginRequest {
    email!: string;
    password!: string;

    constructor(data?: ILoginRequest) {
        if (data) {
          // ...
        }
    }
}

As such, it allows LoginRequest to be created without any of the required data. I had a look at the source of the generator and it appears there is no option to change it.

Is there a way to force the constructor to make the data parameter required?

Note that I'm aware I could set the generation type to use interfaces, but then as far as I can see I would lose some of the parsing smarts (ie. date strings to date instances). If I could use only interfaces but retain that logic somehow that would be ideal.

edited Dec 08 '20 at 11:57

asked Dec 08 '20 at 10:14

Evan Trimboli

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Just make a wrapper for LoginRequest with required argument – captain-yossarian from Ukraine Dec 08 '20 at 10:37
That's not really a viable solution. Since it's generated code I don't want to be hand coding wrappers for every data type. At a minimum I would need to be able to hook the generator to do that, not sure if that is possible. – Evan Trimboli Dec 08 '20 at 10:43
Have you tried https://www.typescriptlang.org/docs/handbook/declaration-merging.html ? – captain-yossarian from Ukraine Dec 08 '20 at 10:54
No, because then I would need to parse all the outputs to generate all the declaration merging. – Evan Trimboli Dec 08 '20 at 10:56
I must admit - you have a pain ) – captain-yossarian from Ukraine Dec 08 '20 at 10:59

Generated constructor data

0 Answers0