[NestJS] MongoDB 사용하기

mongoose 패키지 설치
npm install --save @nestjs/mongoose mongoose

DB만 관리하는 Module에 몽구스 모듈 추가
forRoot가 Connect라고 생각하면 됨.

 imports: [
    MongooseModule.forRoot(process.env.MONGODB_URL),
    ]

스키마 만들기
test.model.ts

import * as mongoose from "mongoose"
export const TestSchema = new mongoose.Schema(
  {
    testId: {
      type: String,
      required: true,
      unique: true,
    },
    testPw: {
      type: String,
      required: true,
    },
  },
  { timestamps: true }
)

export interface Test extends mongoose.Document {
  _id: string;
  testId: string;
  testPw: string;
}

사용하려는 Module에 Import 해주기
imports: [MongooseModule.forFeature([{ name: "test", schema: TestSchema }])],

인젝션 후 사용하기~
test.service.ts

import { Injectable } from '@nestjs/common';
import { InjectModel } from '@nestjs/mongoose';
import { Model } from 'mongoose';
import { Test } from './test.model';
@Injectable()
export class UsersService {
  constructor(@InjectModel('test') private readonly testModel: Model<Test>) {}
  async insertUser(testId: string, testPw: string) {
    const testid = testId.toLowerCase();
    const newUser = new this.testModel({
      testId,
      toLowerCase,
    });
    await newTest.save();
    return newTest;
  }
}