mailer configured

package-lock.json

@@ -21,7 +21,7 @@
         "dotenv": "^16.3.1",
         "handlebars": "^4.7.8",
         "moment": "^2.30.1",
-        "nodemailer": "^6.9.9",
+        "nodemailer": "^6.10.0",
         "otp-generator": "^4.0.1",
         "passport-jwt": "^4.0.1",
         "pg": "^8.14.1",
@@ -7304,9 +7304,9 @@
       "license": "MIT"
     },
     "node_modules/nodemailer": {
-      "version": "6.9.9",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.9.9.tgz",
-      "integrity": "sha512-dexTll8zqQoVJEZPwQAKzxxtFn0qTnjdQTchoU6Re9BUUGBJiOy3YMn/0ShTW6J5M0dfQ1NeDeRTTl4oIWgQMA==",
+      "version": "6.10.0",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.10.0.tgz",
+      "integrity": "sha512-SQ3wZCExjeSatLE/HBaXS5vqUOQk6GtBdIIKxiFdmm01mOQZX/POJkO3SUX1wDiYcwUOJwT23scFSC9fY2H8IA==",
       "engines": {
         "node": ">=6.0.0"
       }
@@ -15717,9 +15717,9 @@
       "dev": true
     },
     "nodemailer": {
-      "version": "6.9.9",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.9.9.tgz",
-      "integrity": "sha512-dexTll8zqQoVJEZPwQAKzxxtFn0qTnjdQTchoU6Re9BUUGBJiOy3YMn/0ShTW6J5M0dfQ1NeDeRTTl4oIWgQMA=="
+      "version": "6.10.0",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.10.0.tgz",
+      "integrity": "sha512-SQ3wZCExjeSatLE/HBaXS5vqUOQk6GtBdIIKxiFdmm01mOQZX/POJkO3SUX1wDiYcwUOJwT23scFSC9fY2H8IA=="
     },
     "nodemon": {
       "version": "3.0.2",

package.json

@@ -35,7 +35,7 @@
     "dotenv": "^16.3.1",
     "handlebars": "^4.7.8",
     "moment": "^2.30.1",
-    "nodemailer": "^6.9.9",
+    "nodemailer": "^6.10.0",
     "otp-generator": "^4.0.1",
     "passport-jwt": "^4.0.1",
     "pg": "^8.14.1",

src/app.module.ts

@@ -21,6 +21,8 @@ import { TicketModule } from './ticket/ticket.module';
 import { TicketPricingModule } from './ticketPricing/ticketPricing.module';
 import { TimeSlotModule } from './timeSlot/timeSlot.module';
 import { PushSubscriptionModule } from './push-subscription/push-subscription.module';
+import { MailerModule } from './node-mailer/mailer.module';
+import { ConfigModule } from '@nestjs/config';
 
 @Module({
   imports: [
@@ -40,7 +42,9 @@ import { PushSubscriptionModule } from './push-subscription/push-subscription.mo
     TicketPricingModule,
     TimeSlotModule,
     UserModule,
-    PushSubscriptionModule
+    PushSubscriptionModule,
+    MailerModule,
+    ConfigModule.forRoot()
 
   ],
   controllers: [AppController, AppConfigController],

src/node-mailer/mailer.controller.spec.ts

@@ -0,0 +1,20 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { MailerController } from './mailer.controller';
+import { MailerService } from './mailer.service';
+
+describe('MailerController', () => {
+  let controller: MailerController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [MailerController],
+      providers: [MailerService],
+    }).compile();
+
+    controller = module.get<MailerController>(MailerController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});

src/node-mailer/mailer.controller.ts

@@ -0,0 +1,63 @@
+import {
+  Body,
+  Controller,
+  // Post,
+  // UsePipes,
+  // ValidationPipe,
+} from '@nestjs/common';
+import { MailerService } from './mailer.service';
+// import { ApiResponse } from '@nestjs/swagger';
+// import { SuccessResponse, ErrorResponse } from '../utils/response.util';
+import { SendMailerDto } from './mailer.interface';
+import { Address } from 'nodemailer/lib/mailer';
+import * as path from 'path';
+import * as fs from 'fs';
+
+@Controller('mailer')
+export class MailerController {
+  constructor(private readonly mailerService: MailerService) {}
+
+  // @Post('send-email')
+  // @ApiResponse({
+  //   status: 201,
+  //   description: 'Email sent successfully',
+  //   type: SuccessResponse,
+  // })
+  // @ApiResponse({
+  //   status: 400,
+  //   description: 'Bad Request',
+  //   type: ErrorResponse,
+  // })
+  // @UsePipes(new ValidationPipe({ whitelist: true }))
+  async sendEmail(
+    @Body()
+    body: {
+      from?: Address;
+      name: string;
+      email: string;
+      subject?: string;
+      otp: string;
+    },
+  ) {
+    // const htmlTemplate = fs.readFileSync('emailTemplate.html', 'utf8');
+    const templatePath = path.join(
+      process.cwd(),
+      'src\\node-mailer\\templates\\emailTemplate.html',
+    );
+
+    if (!fs.existsSync(templatePath)) {
+      throw new Error(`Template file not found at: ${templatePath}`);
+    }
+
+    const htmlTemplate = fs.readFileSync(templatePath, 'utf8');
+    const sendDto: SendMailerDto = {
+      from: body.from,
+      reciepients: [{ name: body.name, address: body.email }],
+      subject: 'Registration OTP',
+      html: htmlTemplate
+        .replace('{{name}}', body.name)
+        .replace('{{otp}}', body.otp),
+    };
+    return this.mailerService.sendMail(sendDto);
+  }
+}

src/node-mailer/mailer.interface.ts

@@ -0,0 +1,10 @@
+import { Address } from 'nodemailer/lib/mailer';
+
+export type SendMailerDto = {
+  from?: Address;
+  reciepients: Address[];
+  subject: string;
+  text?: string;
+  html: string;
+  placeholderReplacements?: Record<string, string>;
+};

src/node-mailer/mailer.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { MailerService } from './mailer.service';
+import { MailerController } from './mailer.controller';
+
+@Module({
+  imports: [ConfigModule],
+  controllers: [MailerController],
+  providers: [MailerService, MailerController],
+  exports: [MailerService, MailerController],
+})
+export class MailerModule {}

src/node-mailer/mailer.service.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { MailerService } from './mailer.service';
+
+describe('MailerService', () => {
+  let service: MailerService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [MailerService],
+    }).compile();
+
+    service = module.get<MailerService>(MailerService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

src/node-mailer/mailer.service.ts

@@ -0,0 +1,57 @@
+import { Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import * as nodemailer from 'nodemailer';
+import { SendMailerDto } from './mailer.interface';
+import Mail from 'nodemailer/lib/mailer';
+
+@Injectable()
+export class MailerService {
+  constructor(
+    private readonly configService: ConfigService
+  ) {}
+  mailTransport() {
+    const transporter = nodemailer.createTransport({
+      service: 'gmail',
+      host: this.configService.get<string>('MAIL_HOST'),
+      auth: {
+        user: this.configService.get<string>('MAIL_USER'),
+        pass: this.configService.get<string>('MAIL_PASS'),
+      },
+      secure: true,
+      port: this.configService.get<number>('MAIL_PORT'),
+    });
+    return transporter;
+  }
+
+  template(html: string, replacements: Record<string, string>) {
+    return html.replace(/%(\w*)%/g, function (m, key) {
+      return replacements.hasOwnProperty(key) ? replacements[key] : '';
+    });
+  }
+
+  async sendMail(dto: SendMailerDto) {
+    const { from, reciepients, subject } = dto;
+    const html = dto.placeholderReplacements
+      ? this.template(dto.html, dto.placeholderReplacements)
+      : dto.html;
+    const transporter = this.mailTransport();
+    const fromName = from?.name ?? this.configService.get<string>('APP_NAME');
+    const fromAddress =
+      from?.address ?? this.configService.get<string>('MAIL_USER');
+    const options: Mail.Options = {
+      from: {
+        name: fromName,
+        address: fromAddress,
+      },
+      to: reciepients,
+      subject,
+      html: this.template(html, dto.placeholderReplacements || {}),
+    };
+    try {
+      const result = await transporter.sendMail(options);
+      return result;
+    } catch (er) {
+      console.log(er);
+    }
+  }
+}

src/node-mailer/templates/emailTemplate.html

@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Arogya Hrudaya Registration</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            margin: 0;
+            padding: 0;
+            background-color: #f4f4f4;
+        }
+        .container {
+            width: 100%;
+            max-width: 400px;
+            margin: 0 auto;
+            background-color: #ffffff;
+            padding: 20px;
+            border-radius: 8px;
+            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+        }
+        .header {
+            background-color: #4CAF50;
+            color: white;
+            padding: 10px 0;
+            text-align: center;
+            border-radius: 8px 8px 0 0;
+        }
+        .content {
+            padding: 20px;
+            line-height: 1.6;
+        }
+        .footer {
+            text-align: center;
+            padding: 10px 0;
+            color: #777;
+            font-size: 12px;
+        }
+        a {
+            color: #4CAF50;
+            text-decoration: none;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h1>Codevice Solutions Private Limited</h1>
+        </div>
+        <div class="content">
+            <h2>Hello, {{name}}!</h2>
+            <p>Use the following OTP to login. OTP is valid for 5 mins. Do not share this OTP to anyone.</p>
+            <h2>{{otp}}</h2>
+            <p>Best regards,<br>CSPL</p>
+        </div>
+        <div class="footer">
+            <p>&copy; 2025 Codevice Solutions Pvt. Ltd. All rights reserved.</p>
+        </div>
+    </div>
+</body>
+</html>