send emails by gmail

api-gateway/src/app.controller.ts

@@ -296,4 +296,21 @@ export class AppController {
   ) {
     return this.appService.findReport(paramReport);
   }
+
+
+  @Post('email/sendMail')
+  senMail(
+    @Body('email') email: string,
+  ) {
+
+    return this.appService.sendMail(email);
+  }
+  @Post('email/html')
+  html(
+    @Body('email') email: string,
+    @Body('name') name: string,
+  ) {
+
+    return this.appService.html(email, name);
+  }
 }

api-gateway/src/app.service.ts

@@ -419,4 +419,25 @@ export class AppService {
         map((message: string) => ({ message })),
       );
   }
+
+
+  sendMail(email: string) {
+    const pattern = { cmd: 'sendMail' };
+    const payload = { email: email};
+    return this.clientNotificationtApp
+      .send<string>(pattern, payload)
+      .pipe(
+        map((message: string) => ({ message })),
+      );
+  }
+
+  html(email: string, name: string) {
+    const pattern = { cmd: 'html' };
+    const payload = { email: email, name: name};
+    return this.clientNotificationtApp
+      .send<string>(pattern, payload)
+      .pipe(
+        map((message: string) => ({ message })),
+      );
+  }
 }

servicio-notificaciones/.env

@@ -0,0 +1,8 @@
+# mail
+MAIL_HOST=smtp.gmail.com
+MAIL_USER=mbonilla.guti@gmail.com
+MAIL_PASSWORD=laofghlofgffmyry
+MAIL_FROM=noreply@example.com
+
+# optional
+MAIL_TRANSPORT=smtp://${MAIL_USER}:${MAIL_PASSWORD}@${MAIL_HOST}

servicio-notificaciones/nest-cli.json

@@ -1,5 +1,9 @@
 {
   "$schema": "https://json.schemastore.org/nest-cli",
   "collection": "@nestjs/schematics",
-  "sourceRoot": "src"
+  "sourceRoot": "src",
+  "compilerOptions": {
+    "assets": ["mails/**/*"], 
+    "watchAssets": true 
+  }
 }

servicio-notificaciones/package.json

@@ -21,12 +21,16 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
+    "@nestjs-modules/mailer": "^1.7.1",
     "@nestjs/common": "^8.0.0",
+    "@nestjs/config": "^2.2.0",
     "@nestjs/core": "^8.0.0",
     "@nestjs/mapped-types": "*",
     "@nestjs/microservices": "^8.4.7",
     "@nestjs/platform-express": "^8.0.0",
     "@nestjs/swagger": "^5.2.1",
+    "handlebars": "^4.7.7",
+    "nodemailer": "^6.7.7",
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
     "rxjs": "^7.2.0",

servicio-notificaciones/src/app.module.ts

@@ -1,11 +1,45 @@
 import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
-import { NotificationsModule } from './notifications/notifications.module';
+import { MailerModule } from '@nestjs-modules/mailer';
 import { ClientsModule, Transport } from "@nestjs/microservices";
+import { AuthModule } from './auth/auth.module';
+import { EmailController } from './email.controller';
+import { join } from 'path';
+import { HandlebarsAdapter } from '@nestjs-modules/mailer/dist/adapters/handlebars.adapter';
+import { ConfigModule, ConfigService } from '@nestjs/config';
 
 
 @Module({
   imports: [
+    MailerModule.forRootAsync({
+      // imports: [ConfigModule], // import module if not enabled globally
+      useFactory: async (config: ConfigService) => ({
+        // transport: config.get("MAIL_TRANSPORT"),
+        // or
+        transport: {
+          host: config.get('MAIL_HOST'),
+          secure: false,
+          auth: {
+            user: config.get('MAIL_USER'),
+            pass: config.get('MAIL_PASSWORD'),
+          },
+        },
+        defaults: {
+          from: `"No Reply" <${config.get('MAIL_USER')}>`,
+        },
+        template: {
+          dir: join(__dirname, 'mails'),
+          adapter: new HandlebarsAdapter(),
+          options: {
+            strict: true,
+          },
+        },
+      }),
+      inject: [ConfigService],
+    }),
+    ConfigModule.forRoot({
+      isGlobal: true, // no need to import into other modules
+    }),
     ClientsModule.register([
       {
         name: "SERVICIO_NOTIFICACIONES",
@@ -16,8 +50,8 @@ import { ClientsModule, Transport } from "@nestjs/microservices";
         }
       }
     ]),
-    NotificationsModule],
-  controllers: [AppController],
+    AuthModule],
+  controllers: [AppController, EmailController],
   providers: [],
 })
 export class AppModule {}

servicio-notificaciones/src/auth/auth.module.ts

@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+//import { AuthController } from './auth.controller';
+import { AuthService } from './auth.service';
+
+@Module({
+  //controllers: [AuthController],
+  providers: [AuthService],
+})
+export class AuthModule {}

servicio-notificaciones/src/auth/auth.service.spec.ts

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

servicio-notificaciones/src/auth/auth.service.ts

@@ -0,0 +1,13 @@
+import { Injectable } from '@nestjs/common';
+import { User } from './../user/user.entity';
+
+@Injectable()
+export class AuthService {
+
+  async signUp(user: User) {
+    const token = Math.floor(1000 + Math.random() * 9000).toString();
+    // create user in db
+    // ...
+    // send confirmation mail
+  }
+}

servicio-notificaciones/src/email.controller.ts

@@ -0,0 +1,38 @@
+import { Controller, Get, Query } from '@nestjs/common';
+import { MessagePattern, Payload } from '@nestjs/microservices';
+
+import { MailerService } from '@nestjs-modules/mailer';
+import { User } from './user/user.entity';
+
+@Controller()
+export class EmailController {
+    constructor(private mailService: MailerService) { }
+
+    @MessagePattern({ cmd: 'sendMail' })
+    sendMail(@Payload() toEmail: string) {
+
+        var response = this.mailService.sendMail({
+            to: toEmail["email"],
+            from: "mbonilla.guti@gmail.com",
+            subject: 'Plain Text Email ✔',
+            text: 'Welcome NestJS Email Sending Tutorial',
+        });
+        return response;
+    }
+
+    @MessagePattern({ cmd: 'html' })
+    async postHTMLEmail(@Payload() user: any) {
+        const url =  "http://localhost:3000/";
+        var response = await this.mailService.sendMail({
+            to: user["email"],
+            from: "mbonilla.guti@gmail.com",
+            subject: 'HTML Dynamic Template',
+            template: 'confirmation',
+            context: {
+                name: user["name"],
+                url,
+            },
+        });
+        return response;
+    }
+}

servicio-notificaciones/src/mails/confirmation.hbs

@@ -0,0 +1,7 @@
+<p>Hey {{ name }},</p>
+<p>Please click below to confirm your email</p>
+<p>
+    <a href="{{ url }}">Confirm</a>
+</p>
+
+<p>If you did not request this email you can safely ignore it.</p>

servicio-notificaciones/src/user/user.entity.ts

@@ -0,0 +1,4 @@
+export interface User {
+    email: string;
+    name: string;
+}

servicio-usuarios/package-lock.json

@@ -5,6 +5,7 @@
   "requires": true,
   "packages": {
     "": {
+      "name": "servicio-usuarios",
       "version": "0.0.1",
       "license": "UNLICENSED",
       "dependencies": {

servicio-usuarios/src/app.module.ts

@@ -7,7 +7,7 @@ import { UsersModule } from './users/users.module';
   imports: [
     ClientsModule.register([
       {
-        name: "SERVICIO_USUARIOS",
+        name: "SERVICIO_NOTIFICACIONES",
         transport: Transport.TCP,
         options: {
           host: "127.0.0.1",