Building Live streaming web app with FastAPI and ReactJS

Posted 1 year ago
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Building a complete live streaming project involves several components and functionalities beyond the scope of a single response. However, I can provide you with an outline of the main steps involved in creating a live streaming project using FastAPI on the backend and React on the frontend.

Here's a high-level overview of the steps involved:

  1. Backend Setup:

    • Set up a new FastAPI project or use an existing one.
    • Install necessary dependencies such as fastapi, uvicorn, and any additional libraries you may require for streaming, authentication, and database integration.
    • Create the necessary models and database tables to store stream information, user data, and any other required entities.
    • Implement user authentication and authorization mechanisms, such as JWT (JSON Web Tokens), to secure the streaming endpoints.
  2. Stream Management:

    • Create endpoints to manage streams, such as starting a new stream, stopping a stream, and retrieving stream details.
    • Implement the logic to handle stream lifecycle events, such as starting and stopping the stream process, managing stream metadata, and storing relevant information in the database.
  3. Signaling and WebRTC:

    • Implement WebSocket endpoints using libraries like fastapi-websocket or websockets.
    • Handle signaling messages between clients to establish WebRTC connections.
    • Implement the necessary WebRTC functionalities, such as generating and exchanging SDP (Session Description Protocol) offers and answers, ICE (Interactive Connectivity Establishment) candidate exchange, and handling media streams.
  4. Frontend Setup:

    • Set up a new React project or use an existing one.
    • Install required dependencies, including react, react-router-dom, and any other libraries you may need for UI components, WebSocket communication, and media streaming.
    • Create the necessary components for the streaming application, such as stream listing, stream details, and live video player.
    • Implement user authentication and authorization components, such as login and registration forms.
  5. WebRTC Integration on Frontend:

    • Set up WebRTC functionality in the frontend using libraries like simple-peer,, or webrtc-adapter.
    • Implement the necessary logic to establish WebRTC connections, exchange signaling messages with the backend, and handle media streams.
  6. UI and UX:

    • Design and implement the user interface for the streaming application using CSS frameworks or UI component libraries like Material-UI, Bootstrap, or Tailwind CSS.
    • Create views for stream listing, stream details, live video player, and user authentication.
    • Enhance the user experience with features like chat functionality, viewer count, streamer status, and real-time updates.
  7. Deployment and Testing:

    • Deploy your backend FastAPI application to a hosting platform like Heroku, AWS, or DigitalOcean.
    • Deploy your frontend React application to a static file hosting service or configure it to be served by the backend server.
    • Perform thorough testing of the streaming functionality, including stream start/stop, signaling, WebRTC connection establishment, and media streaming between clients.

Remember, building a complete live streaming project involves significant complexity and may require additional considerations like media server integration, scalability, load balancing, and video transcoding. It's recommended to break down the project into smaller tasks and tackle them one by one while referring to documentation and tutorials specific to the libraries and tools you are using.

I hope this gives you a general idea of the steps involved in building a live streaming project using FastAPI and React.

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