typeorm-transactional-async-callbacks/tests/services/user-reader.service.ts

A Transactional Method Decorator for typeorm that uses cls-hooked to handle and propagate transactions between different repositories and service methods. Inpired by Spring Trasnactional Annotation and Sequelize CLS

import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { Repository } from 'typeorm';

import { Transactional } from '../../src';
import { User } from '../entities/User.entity';

@Injectable()
export class UserReaderService {
  constructor(
    @InjectRepository(User)
    private readonly repository: Repository<User>,
  ) {}

  @Transactional()
  async findUserByName(name: string): Promise<User | null> {
    return this.repository.findOneBy({ name });
  }
}