flashcards-api/src/prisma.service.ts

import { INestApplication, Injectable, OnModuleInit } from '@nestjs/common'
import { PrismaClient } from '@prisma/client'

@Injectable()
export class PrismaService extends PrismaClient implements OnModuleInit {
  // constructor() {
  //   super({
  //     log: [
  //       {
  //         emit: 'stdout',
  //         level: 'query',
  //       },
  //       {
  //         emit: 'stdout',
  //         level: 'error',
  //       },
  //       {
  //         emit: 'stdout',
  //         level: 'info',
  //       },
  //       {
  //         emit: 'stdout',
  //         level: 'warn',
  //       },
  //     ],
  //   })
  // }

  async onModuleInit() {
    await this.$connect()
  }

  private exitHandler(app: INestApplication) {
    return async () => {
      await app.close()
    }
  }

  async enableShutdownHooks(app: INestApplication) {
    process.on('exit', this.exitHandler(app))
    process.on('beforeExit', this.exitHandler(app))
    process.on('SIGINT', this.exitHandler(app))
    process.on('SIGTERM', this.exitHandler(app))
    process.on('SIGUSR2', this.exitHandler(app))
  }
}