response_example.ts

type ErrorCodes = '403a' | '400b';

type Error = {
  code: ErrorCodes;
  message: string;
};

type ErrorWithMeta<T> = Error & {
  meta: T;
};

type ResponseOne<T> = {
  result: T | T[];
  error: Error;
};

type ResponseMany<T> = {
  result: T[];
  error: ErrorWithMeta<Partial<T>>[];
};

type User = {
  uuid: string;
  role_id: number;
};

const exampleResponseOne: ResponseOne<User> = {
  result: {
    uuid: 'iquwye8973iu',
    role_id: 2,
  },
  error: {
    code: '403a',
    message: 'Недостаточно прав',
  },
};

const exampleResponseMany: ResponseMany<User> = {
  result: [
    {
      uuid: 'iquwye8973iu',
      role_id: 2,
    },
    {
      uuid: 'kg2j4hg234',
      role_id: 34,
    },
  ],
  error: [
    {
      meta: {
        uuid: 'kg2j4hg234',
      },
      code: '400b',
      message: 'Пользователь был удален',
    },
  ],
};