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CallVideo Documentation

Backend

The backend is a collection of services that are responsible for handling the business logic of the CallVideo platform.

Tech Stack

The backend services are built with the following technologies:

  • Framework: NestJS
  • Language: TypeScript
  • Database: MongoDB (with Mongoose ODM)
  • Authentication: Passport.js with JWT
  • HTTP Client: Axios
  • WebSockets: Socket.IO
  • Cloud Storage: AWS SDK (S3)
  • Code Formatting: Prettier
  • Video Calling: Twilio
  • Deployment: Heroku, EC2
  • Monitoring: New Relic
  • Testing: Jest

Callvideo API

The Callvideo API is a server service that provides a set of endpoints for managing CallVideo accounts, users, and other resources.

Specific technologies:

  • Fastify as HTTP server
  • OTP library for two-factor authentication

Callvideo Socket

The Callvideo Socket is a WebSocket server that provides a set of endpoints for managing real time communication between the Attendant and Client, such as sending and receiving messages, call events, and queue events.

Specific technologies:

  • Socket.IO for real-time bidirectional communication
  • NestJS WebSockets module