use nodemailer/smtp instead of sendgrid

server/package.json

@@ -20,7 +20,6 @@
     "@nestjs/serve-static": "^3.0.0",
     "@nestjs/terminus": "^9.1.1",
     "@nestjs/typeorm": "^9.0.1",
-    "@sendgrid/mail": "^7.7.0",
     "@types/passport": "^1.0.10",
     "bcryptjs": "^2.4.3",
     "cache-manager": "^4.1.0",
@@ -35,6 +34,7 @@
     "multer": "^1.4.4",
     "nanoid": "^3.3.4",
     "node-stream-zip": "^1.15.0",
+    "nodemailer": "^6.7.8",
     "passport": "^0.6.0",
     "passport-jwt": "^4.0.0",
     "passport-local": "^1.0.0",
@@ -57,6 +57,7 @@
     "@types/lodash": "^4.14.184",
     "@types/multer": "^1.4.7",
     "@types/node": "^18.7.9",
+    "@types/nodemailer": "^6.4.5",
     "@types/passport-jwt": "^3.0.6",
     "@types/passport-local": "^1.0.34",
     "prettier": "^2.7.1",

server/src/config/config.module.ts

@@ -6,7 +6,7 @@ import appConfig from './app.config';
 import authConfig from './auth.config';
 import databaseConfig from './database.config';
 import googleConfig from './google.config';
-import sendgridConfig from './sendgrid.config';
+import mailConfig from './mail.config';
 import storageConfig from './storage.config';
 
 const validationSchema = Joi.object({
@@ -36,11 +36,13 @@ const validationSchema = Joi.object({
   GOOGLE_CLIENT_SECRET: Joi.string().allow(''),
   PUBLIC_GOOGLE_CLIENT_ID: Joi.string().allow(''),
 
-  // SendGrid
-  SENDGRID_API_KEY: Joi.string().allow(''),
-  SENDGRID_FORGOT_PASSWORD_TEMPLATE_ID: Joi.string().allow(''),
-  SENDGRID_FROM_NAME: Joi.string().allow(''),
-  SENDGRID_FROM_EMAIL: Joi.string().allow(''),
+  // Mail
+  MAIL_FROM_NAME: Joi.string().allow(''),
+  MAIL_FROM_EMAIL: Joi.string().allow(''),
+  MAIL_HOST: Joi.string().allow(''),
+  MAIL_PORT: Joi.string().allow(''),
+  MAIL_USERNAME: Joi.string().allow(''),
+  MAIL_PASSWORD: Joi.string().allow(''),
 
   // Storage
   STORAGE_BUCKET: Joi.string().allow(''),
@@ -54,7 +56,7 @@ const validationSchema = Joi.object({
 @Module({
   imports: [
     NestConfigModule.forRoot({
-      load: [appConfig, authConfig, databaseConfig, googleConfig, sendgridConfig, storageConfig],
+      load: [appConfig, authConfig, databaseConfig, googleConfig, mailConfig, storageConfig],
       validationSchema: validationSchema,
     }),
   ],

server/src/config/mail.config.ts

@@ -0,0 +1,12 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('mail', () => ({
+  from: {
+    name: process.env.MAIL_FROM_NAME,
+    email: process.env.MAIL_FROM_EMAIL,
+  },
+  host: process.env.MAIL_HOST,
+  port: process.env.MAIL_PORT,
+  username: process.env.MAIL_USERNAME,
+  password: process.env.MAIL_PASSWORD,
+}));

server/src/config/sendgrid.config.ts

@@ -1,8 +0,0 @@
-import { registerAs } from '@nestjs/config';
-
-export default registerAs('sendgrid', () => ({
-  apiKey: process.env.SENDGRID_API_KEY,
-  forgotPasswordTemplateId: process.env.SENDGRID_FORGOT_PASSWORD_TEMPLATE_ID,
-  fromName: process.env.SENDGRID_FROM_NAME,
-  fromEmail: process.env.SENDGRID_FROM_EMAIL,
-}));

server/src/mail/dto/send-mail.dto.ts

@@ -0,0 +1,30 @@
+import { Type } from 'class-transformer';
+import { IsDefined, IsNotEmpty, IsString } from 'class-validator';
+
+export class MailRecipient {
+  @IsNotEmpty()
+  @IsString()
+  name: string;
+
+  @IsNotEmpty()
+  @IsString()
+  email: string;
+}
+
+export class SendMailDto {
+  @IsDefined()
+  @Type(() => MailRecipient)
+  from: MailRecipient;
+
+  @IsDefined()
+  @Type(() => MailRecipient)
+  to: MailRecipient;
+
+  @IsString()
+  @IsNotEmpty()
+  subject: string;
+
+  @IsString()
+  @IsNotEmpty()
+  message: string;
+}

server/src/mail/mail.service.ts

@@ -1,40 +1,56 @@
 import { Injectable } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
-import SendGrid from '@sendgrid/mail';
+import { createTransport, Transporter } from 'nodemailer';
 
 import { User } from '@/users/entities/user.entity';
 
+import { SendMailDto } from './dto/send-mail.dto';
+
 @Injectable()
 export class MailService {
-  constructor(private configService: ConfigService) {
-    const sendGridApiKey = this.configService.get<string>('sendgrid.apiKey');
+  transporter: Transporter;
 
-    if (sendGridApiKey) {
-      SendGrid.setApiKey(this.configService.get<string>('sendgrid.apiKey'));
-    }
+  constructor(private configService: ConfigService) {
+    this.transporter = createTransport({
+      host: this.configService.get<string>('mail.host'),
+      port: this.configService.get<number>('mail.port'),
+      pool: true,
+      secure: false,
+      tls: { ciphers: 'SSLv3' },
+      auth: {
+        user: this.configService.get<string>('mail.username'),
+        pass: this.configService.get<string>('mail.password'),
+      },
+    });
   }
 
-  async sendEmail(mail: SendGrid.MailDataRequired) {
-    return SendGrid.send(mail);
+  async sendEmail(sendMailDto: SendMailDto) {
+    this.transporter.sendMail({
+      from: `${sendMailDto.from.name} <${sendMailDto.from.email}>`,
+      to: `${sendMailDto.to.name} <${sendMailDto.to.email}>`,
+      subject: sendMailDto.subject,
+      text: sendMailDto.message,
+      html: sendMailDto.message,
+    });
   }
 
   async sendForgotPasswordEmail(user: User, resetToken: string): Promise<void> {
     const appUrl = this.configService.get<string>('app.url');
     const url = `${appUrl}?modal=auth.reset&resetToken=${resetToken}`;
 
-    const mailData: SendGrid.MailDataRequired = {
+    const sendMailDto: SendMailDto = {
       from: {
-        name: this.configService.get<string>('sendgrid.fromName'),
-        email: this.configService.get<string>('sendgrid.fromEmail'),
+        name: this.configService.get<string>('mail.from.name'),
+        email: this.configService.get<string>('mail.from.email'),
       },
-      to: user.email,
-      hideWarnings: true,
-      dynamicTemplateData: { url },
-      templateId: this.configService.get<string>('sendgrid.forgotPasswordTemplateId'),
+      to: {
+        name: user.name,
+        email: user.email,
+      },
+      subject: 'Reset your Reactive Resume password',
+      message: `<p>Hey ${user.name}!</p> <p>You can reset your password by visiting this link: <a href="${url}">${url}</a>.</p> <p>But hurry, because it will expire in 30 minutes.</p>`,
     };
 
-    await SendGrid.send(mailData);
-
-    return;
+    await this.sendEmail(sendMailDto);
   }
 }

server/src/users/users.service.ts

@@ -2,7 +2,7 @@ import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
 import { SchedulerRegistry } from '@nestjs/schedule';
 import { InjectRepository } from '@nestjs/typeorm';
 import { randomBytes } from 'crypto';
-import { Connection, Repository } from 'typeorm';
+import { DataSource, Repository } from 'typeorm';
 
 import { MailService } from '@/mail/mail.service';
 
@@ -19,7 +19,7 @@ export class UsersService {
     @InjectRepository(User) private userRepository: Repository<User>,
     private schedulerRegistry: SchedulerRegistry,
     private mailService: MailService,
-    private connection: Connection
+    private dataSource: DataSource
   ) {}
 
   async findById(id: number): Promise<User> {
@@ -93,7 +93,7 @@ export class UsersService {
       const user = await this.findByEmail(email);
 
       const resetToken = randomBytes(32).toString('hex');
-      const queryRunner = this.connection.createQueryRunner();
+      const queryRunner = this.dataSource.createQueryRunner();
 
       const timeout = setTimeout(async () => {
         await this.userRepository.update(user.id, { resetToken: null });