Microservices MP3 Converter

This application converts video files to MP3 format using a microservices architecture.

• Microservices MP3 Converter
  • Overview
  • Directory structure
  • System Components
  • Authentication Flow

Overview

1. Authentication:

   • Users must first authenticate by making a request to the API Gateway to obtain a JWT (JSON Web Token).
   • The JWT is used to authorize subsequent requests to other services.

2. Video Upload:

   • After obtaining a JWT, users upload a video file through the API Gateway.
   • The API Gateway stores the video in MongoDB and publishes a message to a RabbitMQ queue.

3. Video Processing:

   • A dedicated video-to-MP3 conversion service listens to the RabbitMQ queue.
   • Upon receiving a message, the service retrieves the video from MongoDB, converts it to MP3, and stores the MP3 file back in MongoDB.
   • After the conversion, it publishes a new message to the queue indicating that the MP3 file is ready.

4. Notification:

   • A notification service listens to the RabbitMQ queue for messages indicating completed conversions.
   • When it receives such a message, it sends an email notification to the user, informing them that their MP3 file is ready for download.

5. MP3 Download:

   • To download the MP3 file, the user must provide the ID received in the notification along with their JWT token.
   • The API Gateway verifies the JWT and uses the ID to fetch the MP3 file from MongoDB and serve it to the user.

Directory Structure

The application is structured as follows:

/system_design
└── /python
    └── /src
        ├── /gateway          # API Gateway service
        ├── /auth             # Auth Service
        ├── /converter        # Video-to-MP3 Conversion Service
        ├── /notification     # Notification Service
        └── /storage          # MongoDB storage related utilities

System Components

• API Gateway: Handles user requests, manages video storage, processes authentication, and facilitates MP7 downloads.
• Auth Service: Authenticates users and issues JWT tokens upon successful login.
• Video-to-MP3 Conversion Service: Processes videos to convert them into MP3 format.
• Notification Service: Sends email notifications to users when their MP3 file is ready.
• MongoDB: Stores video files, MP3 files, and relevant metadata.
• RabbitMQ: Facilitates communication between services through message queues.

Authentication Flow

1. Request JWT: Users make a request to the API Gateway to authenticate and obtain a JWT.
2. Use JWT: The JWT is used to authenticate subsequent interactions with the API Gateway, including uploading videos and downloading MP3 files.