NestJS 中 Prisma 交互式事务的回滚在抛出错误时不起作用

Question

I am using the prisma ORM and NestJS and I got the following example code:

async createMerchant(data: Prisma.MerchantCreateInput): Promise<Merchant> {
  return await this.prisma.$transaction(async (): Promise<Merchant> => {
    await this.prisma.merchant.create({
      data,
    });
    throw new Error(`Some error`);
  });
}

I would expect that the transaction is rolled back as I have thrown an error, but it is not, it creates a new database entry.

Here is the example of the official documentation .

Is this maybe related to the dependency injection of NestJS and that the injected prisma service is not correctly recognizing the error? Or am I doing something wrong?

Answer 1

As example shows you need to use prisma instance that is passed as an argument to your callback function, like that:

async createMerchant(data: Prisma.MerchantCreateInput): Promise<Merchant> {
  return await this.prisma.$transaction(async (prisma): Promise<Merchant> => {
    // Not this.prisma, but prisma from argument
    await prisma.merchant.create({
      data,
    });
    throw new Error(`Some error`);
  });
}