TS2307: Cannot find module 'nodemailer' or its corresponding type declarations.

[summer karma]

I get an error when using nodemailer in nest js

package.json

  "dependencies": {
    "@nestjs/common": "^10.0.0",
    "@nestjs/config": "^3.2.3",
    "@nestjs/core": "^10.0.0",
    "@nestjs/jwt": "^10.2.0",
    "@nestjs/mapped-types": "*",
    "@nestjs/microservices": "^10.3.10",
    "@nestjs/mongoose": "^10.0.10",
    "@nestjs/passport": "^10.0.3",
    "@nestjs/platform-express": "^10.0.0",
    "bcryptjs": "^2.4.3",
    "class-transformer": "^0.5.1",
    "class-validator": "^0.14.1",
    "cookie-parser": "^1.4.6",
    "express": "^4.19.2",
    "joi": "^17.13.3",
    "mongoose": "^8.5.1",
    "nestjs-pino": "^4.1.0",
    "nodemailer": "^6.10.0",
    "passport": "^0.7.0",
    "passport-jwt": "^4.0.1",
    "passport-local": "^1.0.0",
    "pino-http": "^10.2.0",
    "pino-pretty": "^11.2.2",
    "reflect-metadata": "^0.1.13",
    "rxjs": "^7.8.1",
    "stripe": "^16.5.0"
  },
  "devDependencies": {
    "@nestjs/cli": "^10.0.0",
    "@nestjs/schematics": "^10.0.0",
    "@nestjs/testing": "^10.0.0",
    "@types/bcryptjs": "^2.4.6",
    "@types/express": "^4.17.17",
    "@types/jest": "^29.5.2",
    "@types/node": "^20.3.1",
    "@types/nodemailer": "^6.4.17",
    "@types/passport-jwt": "^4.0.1",
    "@types/passport-local": "^1.0.38",
    "@types/supertest": "^2.0.12",
    "@typescript-eslint/eslint-plugin": "^6.0.0",
    "@typescript-eslint/parser": "^6.0.0",
    "eslint": "^8.42.0",
    "eslint-config-prettier": "^9.0.0",
    "eslint-plugin-prettier": "^5.0.0",
    "jest": "^29.5.0",
    "prettier": "^3.0.0",
    "source-map-support": "^0.5.21",
    "supertest": "^6.3.3",
    "ts-jest": "^29.1.0",
    "ts-loader": "^9.4.3",
    "ts-node": "^10.9.1",
    "tsconfig-paths": "^4.2.0",
    "typescript": "^5.1.3"
  },

DockerFile

FROM node:alpine AS development

WORKDIR /usr/src/app

COPY package*.json ./
COPY pnpm-lock.yaml ./

RUN npm install -g pnpm

RUN pnpm install

COPY . .

RUN pnpm build

FROM node:alpine AS production

ARG NODE_ENV=production
ENV NODE_ENV=${NODE_ENV}

WORKDIR /usr/src/app

COPY package*.json ./
COPY pnpm-lock.yaml ./

RUN npm install -g pnpm

RUN pnpm install --prod

COPY --from=development /usr/src/app/dist ./dist

CMD [ "node", "dist/apps/notifications/main" ]

docker-compose.yml

notifications:
    build:
      context: .
      dockerfile: ./apps/notifications/Dockerfile
      target: development
    command: pnpm run start:dev notifications 
    volumes:
      - .:/usr/src/app:delegated
      - /usr/src/app/node_modules
    environment:
      - WATCHPACK_POLLING=true
      - CHOKIDAR_USEPOLLING=true
    env_file:
      - ./apps/notifications/.env

And this is the code that uses the nodemailer

import { Injectable } from '@nestjs/common';
import { NotifyEmailDto } from './dto/notify-email.dto';
import { ConfigService } from '@nestjs/config';
import * as nodemailer from 'nodemailer';

@Injectable()
export class NotificationsService {
  constructor(private readonly configService: ConfigService) {}

  private readonly transporter = nodemailer.createTransport({
    service: 'gmail',
    auth: {
      type: 'OAuth2',
      user: this.configService.get('SMTP_USER'),
      clientId: this.configService.get('GOOGLE_OAUTH_CLIENT_ID'),
      clientSecret: this.configService.get('GOOGLE_OAUTH_CLIENT_SECRET'),
      refreshToken: this.configService.get('GOOGLE_OAUTH_REFRESH_TOKEN'),
    },
  });

  async notifyEmail({ email }: NotifyEmailDto) {
    this.transporter.sendMail({
      from: this.configService.get('SMTP_USER'),
      to: email,
      subject: 'Sleepr Notification',
      text: 'Test text',
    });
  }
}

[humble saffron]

Can you try with

import nodemailer from 'nodemailer';

Instead of

Import * as nodemailer from ‘nodemailer’

[summer karma]

i use monorepo

i use vsc brother

[summer karma]

what's wrong?

solved by comment load node modules in volume then running docker compose up, then uncomment load node modules in volume then running docker compose up

i use windows 11

i'm confused why the solution it's just like that

yes i do

thanks for your help

i use vs code brother and i read the log

yes it says TS2307: Could not find 'nodemailer' module or corresponding type declaration.

but I'm confused because I already installed it

The error appears in the log not in the problem tab, because the error appears when compiled and running using docker compose.

yes i do

[summer karma]

here's my package.json

sorry it

it's just unit test

Thank @sly berry

no I'm not writing unit tests for now, I'm taking an online course, the instructor is using a mac, while I'm using Windows, sometimes there are things that need to be adjusted in Windows

and the instructor didn't write the unit test

[limpid glacier]

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[summer karma]

Yes, I did.

interesting

btw, what os are you using?

what linux are you using? arch?

[summer karma]

@sly berry