How to Send MMS Messages with Plivo API and NestJS

You'll learn how to send MMS (Multimedia Messaging Service) messages using the Plivo API within a NestJS application. This guide walks you through the complete setup – from installing dependencies to implementing advanced features like error handling, media validation, and delivery tracking.

What Are the Prerequisites for Plivo MMS in NestJS?

Before you begin, ensure you have:

• Node.js v16+ (LTS version recommended) and npm/yarn installed. NestJS 11 (current version 11.1.6 as of 2025) requires Node.js v16 or higher.
• A Plivo account with API credentials (Auth ID and Auth Token) from plivo.com.
• Note: Plivo Node.js SDK current version is 4.74.0.
• A Plivo phone number capable of sending MMS – verify MMS support in your account dashboard.
• Basic understanding of NestJS concepts: modules, services, controllers, and dependency injection.

Understanding MMS with Plivo

What Is MMS?

MMS extends traditional SMS by allowing you to send multimedia content:

• Images: JPEG, PNG, GIF
• Videos: MP4, 3GP
• Audio: MP3, AMR
• vCards: Contact information
• PDF Documents: (Carrier support varies)

What Are the Media Types and Size Limits for Plivo MMS?

• Outbound MMS Limits (Official Plivo Specifications):
  • Up to 10 attachments per message (combination of media_urls and media_ids)
  • Maximum 2 MB per attachment
  • Total message size (body text + all attachments) must be less than 5 MB
  • Message body can be up to 1,600 characters (4.8 KB)
  • Messages exceeding 5 MB will fail with Plivo error code 120
• Carrier-Specific Recommendations:
  • For US carriers: Use attachments no larger than 600 KB for non-JPEG/PNG/GIF files
  • For Canada: Keep all MMS attachments smaller than 1 MB across all networks
• Media Retention: Plivo saves media sent to customers for 1 year. Unused media (uploaded but not sent) is deleted after 6 hours.
• Supported Formats:
  • Images: JPEG, JPG, PNG, GIF, BMP
  • Video: MP4, 3GP, AVI, MOV
  • Audio: MP3, WAV, AMR, OGG

How Do You Set Up a NestJS Project for Plivo MMS?

Step 1: Create a New NestJS Application

Open your terminal and run:

npm i -g @nestjs/cli
nest new plivo-mms-app
cd plivo-mms-app

Choose your preferred package manager when prompted (npm or yarn).

Step 2: Install Plivo Node.js SDK

Install the official Plivo SDK:

npm install plivo
# or
yarn add plivo

Step 3: Configure Environment Variables

Create a .env file in your project root:

PLIVO_AUTH_ID=your_auth_id
PLIVO_AUTH_TOKEN=your_auth_token
PLIVO_PHONE_NUMBER=your_plivo_phone_number

Install the config package to manage environment variables:

npm install @nestjs/config
# or
yarn add @nestjs/config

Update app.module.ts:

import { Module } from '@nestjs/common';
import { ConfigModule } from '@nestjs/config';
import { AppController } from './app.controller';
import { AppService } from './app.service';

@Module({
  imports: [
    ConfigModule.forRoot({
      isGlobal: true, // Makes ConfigService available throughout the app
    }),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

How Do You Create an MMS Service in NestJS?

Generate a Service

Run this command to generate a new service:

nest generate service mms

This creates mms.service.ts and mms.service.spec.ts in the src folder.

Implement Basic MMS Functionality

Update src/mms/mms.service.ts:

import { Injectable, Logger } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import * as plivo from 'plivo';

@Injectable()
export class MmsService {
  private readonly logger = new Logger(MmsService.name);
  private client: plivo.Client;
  private fromNumber: string;

  constructor(private configService: ConfigService) {
    const authId = this.configService.get<string&gt;('PLIVO_AUTH_ID');
    const authToken = this.configService.get<string&gt;('PLIVO_AUTH_TOKEN');
    this.fromNumber = this.configService.get<string&gt;('PLIVO_PHONE_NUMBER');

    this.client = new plivo.Client(authId, authToken);
    this.logger.log('Plivo MMS Service initialized');
  }

  async sendMMS(
    to: string,
    text: string,
    mediaUrls: string[],
  ): Promise<any&gt; {
    try {
      const response = await this.client.messages.create({
        src: this.fromNumber,
        dst: to,
        text: text,
        type: 'mms',
        media_urls: mediaUrls,
      });

      this.logger.log(`MMS sent successfully: ${JSON.stringify(response)}`);
      return response;
    } catch (error) {
      this.logger.error(`Failed to send MMS: ${error.message}`);
      throw error;
    }
  }
}

Key Points:

• Dependency Injection: The ConfigService injects environment variables.
• Client Initialization: You initialize the Plivo client once in the constructor.
• Error Handling: The try-catch block captures errors and logs them.
• Type Safety: TypeScript provides better IDE support and catches errors at compile time.

How Do You Create an MMS Controller to Handle Requests?

Generate a Controller

Run:

nest generate controller mms

Implement the Controller

Update src/mms/mms.controller.ts:

import { Controller, Post, Body, HttpException, HttpStatus } from '@nestjs/common';
import { MmsService } from './mms.service';

interface SendMmsDto {
  to: string;
  text: string;
  mediaUrls: string[];
}

@Controller('mms')
export class MmsController {
  constructor(private readonly mmsService: MmsService) {}

  @Post('send')
  async sendMms(@Body() sendMmsDto: SendMmsDto) {
    try {
      const response = await this.mmsService.sendMMS(
        sendMmsDto.to,
        sendMmsDto.text,
        sendMmsDto.mediaUrls,
      );
      return {
        success: true,
        messageUuid: response.messageUuid,
        message: 'MMS sent successfully',
      };
    } catch (error) {
      throw new HttpException(
        {
          success: false,
          message: 'Failed to send MMS',
          error: error.message,
        },
        HttpStatus.INTERNAL_SERVER_ERROR,
      );
    }
  }
}

Best Practices:

• DTOs (Data Transfer Objects): Define the shape of incoming request data.
• Error Handling: Use HttpException to return proper HTTP status codes.
• Service Separation: Keep business logic in services, not controllers.

How Do You Test Your Plivo MMS Implementation?

Using cURL

Test your endpoint with this command:

curl -X POST http://localhost:3000/mms/send \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+1234567890",
    "text": "Hello! This is an MMS with an image.",
    "mediaUrls": ["https://example.com/image.jpg"]
  }'

Using Postman

1. Method: POST
2. URL: http://localhost:3000/mms/send
3. Headers: Content-Type: application/json
4. Body (raw JSON):

{
  "to": "+1234567890",
  "text": "Check out this image!",
  "mediaUrls": ["https://example.com/sample.png"]
}

Expected Response

{
  "success": true,
  "messageUuid": "abc123-def456-ghi789",
  "message": "MMS sent successfully"
}

What Advanced Features Can You Add to Your Plivo MMS Service?

1. Input Validation with class-validator

Install validation packages:

npm install class-validator class-transformer
# or
yarn add class-validator class-transformer

Create a DTO file src/mms/dto/send-mms.dto.ts:

import { IsString, IsArray, IsNotEmpty, ArrayMinSize, ArrayMaxSize, Matches, MaxLength } from 'class-validator';

export class SendMmsDto {
  @IsString()
  @IsNotEmpty()
  @Matches(/^\+[1-9]\d{1,14}$/, {
    message: 'Phone number must be in E.164 format (e.g., +1234567890)',
  })
  to: string;

  @IsString()
  @MaxLength(1600, {
    message: 'Message text cannot exceed 1,600 characters',
  })
  text: string;

  @IsArray()
  @ArrayMinSize(1, { message: 'At least one media URL is required' })
  @ArrayMaxSize(10, { message: 'Maximum 10 media URLs allowed' })
  @IsString({ each: true })
  mediaUrls: string[];
}

Enable global validation in main.ts:

import { ValidationPipe } from '@nestjs/common';
import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  app.useGlobalPipes(new ValidationPipe({
    whitelist: true, // Strip properties that don't have decorators
    forbidNonWhitelisted: true, // Throw error if non-whitelisted properties exist
    transform: true, // Auto-transform payloads to DTO instances
  }));
  await app.listen(3000);
}
bootstrap();

Update the controller to use the DTO:

import { Controller, Post, Body } from '@nestjs/common';
import { MmsService } from './mms.service';
import { SendMmsDto } from './dto/send-mms.dto';

@Controller('mms')
export class MmsController {
  constructor(private readonly mmsService: MmsService) {}

  @Post('send')
  async sendMms(@Body() sendMmsDto: SendMmsDto) {
    // Validation happens automatically
    const response = await this.mmsService.sendMMS(
      sendMmsDto.to,
      sendMmsDto.text,
      sendMmsDto.mediaUrls,
    );
    return {
      success: true,
      messageUuid: response.messageUuid,
    };
  }
}

What Are Common MMS Issues and How Do You Fix Them?

Why Is My MMS Not Being Delivered?

Symptoms: Message status shows "failed" or "undelivered"

Solutions:

• Check Phone Number: Verify you're using E.164 format (e.g., +1234567890).
• Verify MMS Support: Ensure the recipient's carrier supports MMS.
• Check Media URLs: Make sure all media URLs are publicly accessible (HTTPS recommended).
• Size Limits: Verify total message size is under 5 MB (2 MB per attachment).
• Carrier Routing: Some carriers have restrictions – check Plivo's carrier coverage.

Why Is Media Not Displaying in My MMS?

Symptoms: Recipient receives text but no media

Solutions:

• File Format: Ensure media uses supported formats (JPEG, PNG, GIF, MP4).
• URL Accessibility: Test media URLs in a browser to confirm they're publicly accessible.
• HTTPS: Use HTTPS URLs for better carrier compatibility.
• Content-Type Headers: Ensure your media server sends correct Content-Type headers.
• File Size: Keep files under recommended carrier limits (600 KB for US, 1 MB for Canada).

Why Are My MMS Messages Taking Too Long to Send?

Symptoms: Messages take longer than expected to send

Solutions:

• Media Hosting: Host media on a CDN for faster access.
• Async Processing: Implement queue systems (Bull, RabbitMQ) for high-volume sending.
• Connection Pooling: Reuse Plivo client instances instead of creating new ones.
• Batch Processing: Group multiple messages when possible.

Why Is My Webhook Not Receiving Delivery Events?

Symptoms: Delivery status callback never fires

Solutions:

• Public URL: Ensure your webhook URL is publicly accessible (use ngrok for local development).
• HTTPS: Plivo requires HTTPS for production webhooks.
• Response Time: Return a 200 status code within 2 seconds.
• Signature Validation: Make sure you're not blocking requests due to invalid signatures.

What Are the Best Practices for Production Plivo MMS?

1. Error Handling

Implement comprehensive error handling:

async sendMMS(to: string, text: string, mediaUrls: string[]): Promise<any&gt; {
  try {
    await this.validateMediaUrls(mediaUrls);
    
    const response = await this.client.messages.create({
      src: this.fromNumber,
      dst: to,
      text,
      type: 'mms',
      media_urls: mediaUrls,
    });
    
    return response;
  } catch (error) {
    // Log detailed error information
    this.logger.error(`MMS Send Error: ${error.message}`, {
      to,
      mediaUrls,
      errorCode: error.code,
      errorDetails: error.response?.data,
    });
    
    // Re-throw with user-friendly message
    if (error.code === 120) {
      throw new BadRequestException('Message size exceeds 5 MB limit');
    }
    
    throw new InternalServerErrorException('Failed to send MMS');
  }
}

2. Rate Limiting

Implement rate limiting to avoid overwhelming the Plivo API:

npm install @nestjs/throttler

Update app.module.ts:

import { ThrottlerModule } from '@nestjs/throttler';

@Module({
  imports: [
    ThrottlerModule.forRoot([{
      ttl: 60000, // 60 seconds
      limit: 10, // 10 requests per minute
    }]),
    // ... other imports
  ],
})
export class AppModule {}

Apply to controller:

import { UseGuards } from '@nestjs/common';
import { ThrottlerGuard } from '@nestjs/throttler';

@Controller('mms')
@UseGuards(ThrottlerGuard)
export class MmsController {
  // ... controller methods
}

3. Media Optimization

Optimize media before sending:

import sharp from 'sharp';

async optimizeImage(imageBuffer: Buffer): Promise<Buffer&gt; {
  return await sharp(imageBuffer)
    .resize(1200, 1200, {
      fit: 'inside',
      withoutEnlargement: true,
    })
    .jpeg({ quality: 80 })
    .toBuffer();
}

Install sharp:

npm install sharp

4. Logging and Monitoring

Implement structured logging:

this.logger.log({
  event: 'mms_sent',
  messageUuid: response.messageUuid,
  to,
  mediaCount: mediaUrls.length,
  timestamp: new Date().toISOString(),
});

Consider integrating with monitoring tools:

• Sentry: Error tracking
• Datadog: Performance monitoring
• CloudWatch: AWS infrastructure monitoring

5. Testing

Create comprehensive tests:

// src/mms/mms.service.spec.ts
import { Test, TestingModule } from '@nestjs/testing';
import { MmsService } from './mms.service';
import { ConfigService } from '@nestjs/config';

describe('MmsService', () => {
  let service: MmsService;

  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        MmsService,
        {
          provide: ConfigService,
          useValue: {
            get: jest.fn((key: string) => {
              const config = {
                PLIVO_AUTH_ID: 'test_auth_id',
                PLIVO_AUTH_TOKEN: 'test_auth_token',
                PLIVO_PHONE_NUMBER: '+1234567890',
              };
              return config[key];
            }),
          },
        },
      ],
    }).compile();

    service = module.get<MmsService&gt;(MmsService);
  });

  it('should be defined', () =&gt; {
    expect(service).toBeDefined();
  });

  describe('sendMMS', () =&gt; {
    it('should send MMS successfully', async () =&gt; {
      const mockResponse = { messageUuid: 'test-uuid-123' };
      jest.spyOn(service['client'].messages, 'create').mockResolvedValue(mockResponse as any);

      const result = await service.sendMMS(
        '+1234567890',
        'Test message',
        ['https://example.com/image.jpg'],
      );

      expect(result).toEqual(mockResponse);
    });

    it('should throw error for invalid media URL', async () =&gt; {
      await expect(
        service.sendMMS(
          '+1234567890',
          'Test',
          ['invalid-url'],
        ),
      ).rejects.toThrow();
    });
  });
});

Run tests:

npm run test
# or
yarn test

Production Deployment Checklist

Before deploying to production:

• Environment Variables: Store credentials securely (use AWS Secrets Manager, Azure Key Vault, etc.)
• HTTPS: Enable HTTPS for webhook endpoints
• Error Tracking: Set up Sentry or similar service
• Rate Limiting: Implement throttling to prevent abuse
• Monitoring: Configure alerts for failed messages
• Database Backups: Automate regular backups of message records
• Load Testing: Test your application under expected traffic
• Logging: Set up centralized logging (ELK stack, CloudWatch)
• Documentation: Create API documentation (use Swagger/OpenAPI)
• Security: Implement webhook signature validation
• Cost Monitoring: Track Plivo usage and costs
• Retry Logic: Implement exponential backoff for failed sends

Frequently Asked Questions About Plivo MMS with NestJS

What is the maximum file size for Plivo MMS attachments?

Plivo supports up to 2 MB per attachment with a maximum of 10 attachments per message. The total message size (body text plus all attachments) must be less than 5 MB. Messages exceeding this limit will fail with Plivo error code 120. For optimal carrier delivery, keep attachments under 600 KB for US carriers and 1 MB for Canadian carriers.

Does Plivo support MMS in all countries?

No, MMS availability varies by country and carrier. Plivo primarily supports MMS for US and Canadian phone numbers. Check the Plivo messaging coverage page for specific country support. For international messaging, you may need to use SMS with shortened URLs linking to media content.

How long does Plivo store MMS media files?

Plivo stores media sent to customers for 1 year from the send date. Media uploaded via the Media API but not used in a message is automatically deleted after 6 hours. For long-term storage, implement your own media management system using cloud storage services like AWS S3 or Google Cloud Storage.

What NestJS version is required for Plivo integration?

You need NestJS 11 (current version 11.1.6 as of 2025) which requires Node.js v16 or higher. The Plivo Node.js SDK (current version 4.74.0) is compatible with these versions. Ensure your development environment meets these requirements before starting implementation.

How do you handle MMS delivery failures in NestJS?

Implement comprehensive error handling with try-catch blocks, validate media URLs before sending, set up webhook endpoints to receive delivery receipts, and store message status in a database for tracking. Use TypeORM or Prisma to persist delivery status updates. Consider implementing retry logic with exponential backoff for temporary failures.

Can you send MMS with multiple images using Plivo?

Yes, Plivo supports up to 10 attachments per MMS message. Pass an array of media URLs to the media_urls parameter when creating a message. Each attachment must be under 2 MB, and the total message size must remain under 5 MB. Ensure all URLs are publicly accessible via HTTPS for best carrier compatibility.

What image formats does Plivo MMS support?

Plivo supports JPEG, JPG, PNG, GIF, and BMP for images. For video, supported formats include MP4, 3GP, AVI, and MOV. Audio formats include MP3, WAV, AMR, and OGG. Always use standard formats and compress files appropriately to ensure maximum carrier compatibility and faster delivery times.

How do you validate Plivo webhook signatures in NestJS?

Generate an HMAC SHA1 signature using your Plivo auth token, the webhook URI, and sorted request parameters. Compare the computed signature with the X-Plivo-Signature header. This prevents unauthorized webhook requests. Use Node.js crypto module to create the HMAC and validate before processing delivery receipts.

What is the cost of sending MMS with Plivo?

MMS pricing varies by destination country and carrier. US MMS typically costs $0.005–$0.01 per message segment, with additional media hosting fees. Check your Plivo account dashboard for specific pricing for your use case. MMS messages with multiple attachments may incur higher costs than SMS.

How do you implement rate limiting for Plivo MMS in NestJS?

Use the @nestjs/throttler package to implement rate limiting at the controller level. Configure TTL (time to live) and request limits based on your application needs. This prevents API abuse and helps manage Plivo API costs. Consider implementing queue systems like Bull or BullMQ for high-volume message sending to better control throughput.

Conclusion

You now have a robust foundation for sending MMS messages with Plivo and NestJS. This guide covered:

• Setting up your NestJS project with Plivo SDK
• Implementing basic MMS sending functionality
• Adding advanced features: validation, delivery tracking, scheduling
• Database integration for message persistence
• Best practices for production deployment
• Troubleshooting common issues

Next Steps

• Explore Plivo's Other APIs: Voice calls, Verify API for 2FA
• Implement Message Templates: Create reusable message templates
• Add User Interface: Build a frontend with React/Angular/Vue
• Scale Your Application: Implement queues and worker processes for high volume
• Monitor Performance: Set up comprehensive monitoring and alerting

Additional Resources

• Plivo MMS API Documentation
• NestJS Official Documentation
• Plivo Node.js SDK on GitHub
• MMS Best Practices Guide