Prisma-generator-nestjs-swagger NPM

prisma-generator-nestjs-swagger

This generator is used to create all the possible dto classes you'll need for prisma crud operations, while also supporting open-api specs, including:

Create
Delete
Find
Update

It includes an extended ValidationPipe serializer that will transform the DTO to match the expected prisma query object. It includes support for pagination (skip/take or cursor), filtering and ordering.

Getting Started

Install the generator

npm i prisma-generator-nestjs-swagger

Inside your prisma schema, add the following:

generator nestJsSwagger {
  provider = "prisma-generator-nestjs-swagger"
}

The output will be generated to:

node_modules/@generated/swagger

Add the ValidationPipe as a global pipe:

import { ValidationPipe } from '@nestjs/common';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);

  app.useGlobalPipes(new ValidationPipe({transform: true}));

  await app.listen(3000);
}

Import & use the generated DTOs (based on code generated in example):

import { FindManyUserDto } from '@generated/swagger';
import { Controller, Get, Query, Req, Res } from '@nestjs/common';

// assumed import of prisma wrapped service
import { PrismaService } from '../prisma/prisma.service';

@Controller()
export class UserController {
  constructor(private prisma: PrismaService) {
  }

  @Get('/users')
  async getUsers(@Query() query: FindManyUserDto, @Res() res) {
    const value = await this.prisma.user.findMany({
      cursor: query.cursor,
      orderBy: query.orderBy,
      skip: query.skip,
      take: query.take,
      where: query.where
    });

    return res.send(value);
  }
}