createSchema doesn't call constructor method

[snaquaye]

Constructor function is not called

// Import statements

@Schema()
class RegistrationSchema {

  constructor (private registrationService: RegistrationService) { }

  @Query()
  hello(me: string): string {
    return 'hello world!';
  }

  @Mutation({ type: RegistrationType })
  async registerUser(@Arg() newRegistrantData: RegistrationInputType): Promise<RegistrationType> {
    const errors = await validate(newRegistrantData);

    if (errors.length) {
      throw SevenBoom.badRequest('Data sent to the sever failed validation', errors);
    }

    try {
      await this.registrationService.registerUser(newRegistrantData);
      return newRegistrantData;
    } catch (error) {
      throw SevenBoom.badImplementation('Internal Server Error', error);
    }
  }
}

const compiledSchema = compileSchema(RegistrationSchema);

export default compiledSchema;

[capaj]

Why would you expect constructor to be called? If you need it called, instantiate your service using new keyword. It would be bad if Schema decorator had such side effects such as instantiating the class.

[MichalLytek]

It might be related to #16 as you need dependency injection. If you need this, you might need to find a library that supports it:
https://github.com/chentsulin/awesome-graphql#lib-ts

[snaquaye]

Can you kindly give an example using services or DI?

[pie6k]

Thats good point! I'll try to add it tomorrow!

I think it'd be useful for other entities like ObjectType too.

[pie6k]

It's now fixed and possible with #39 - I'll create example of DI soon.