psp_api/src/prisma/prisma.service.ts

import { Injectable, OnModuleDestroy, OnModuleInit } from '@nestjs/common'
import { PrismaMariaDb } from '@prisma/adapter-mariadb'
import 'dotenv/config'
import { env } from 'prisma/config'
import { PrismaClient } from '../generated/prisma/client'

@Injectable()
export class PrismaService extends PrismaClient implements OnModuleInit, OnModuleDestroy {
  constructor() {
    const adapter = new PrismaMariaDb({
      host: env('DATABASE_HOST'),
      user: env('DATABASE_USER'),
      password: env('DATABASE_PASSWORD'),
      database: env('DATABASE_NAME'),
      port: env('DATABASE_PORT') ? Number(env('DATABASE_PORT')) : 3306,
      connectionLimit: 5,
    })
    super({ adapter })
  }

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

  async onModuleDestroy() {
    await this.$disconnect()
  }

  // async enableShutdownHooks(app: any) {
  //   this.$on('beforeExit', async () => {
  //     await app.close()
  //   })
  // }
}