Mutation return null on signup

Question

I'm building an API with graphql, typegraphql and typeorm using typescript and I have my signup mutation who returns null when I return the user but it return the errors without problem. I precise that when I use the signup mutation the user is correctly saved in the databse (I use postgres) and I can console.log the result of the query

signup mutation:

@Mutation((_) => UserResponse)
  async signup(
    @Arg('email') email: string,
    @Arg('password') password: string
  ): Promise<UserResponse> {
    const errors = await signupValidation(email, password);

    if (errors.length > 0) {
      return { errors };
    }

    const result = await getConnection()
      .createQueryBuilder()
      .insert()
      .into(User)
      .values([{ email, password }])
      .returning('*')
      .execute();
    console.log(result.raw[0])
    return result.raw[0];
  }

the console.log's result

And here is me calling the mutation (no errors)

And here is the result where there is an error

Answer 1

It seems your function is returning a User-shaped object, not a UserResponse (with user and errors properties).

Change your code to

return { user: result.raw[0] };

(and maybe try to figure out why TypeScript didn't complain - is result typed as any?)