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In Flask, which library is typically used to implement WebSocket support as an alternative to SSE?

easy📝 Conceptual Q2 of 15
Flask - WebSocket and Real-Time
In Flask, which library is typically used to implement WebSocket support as an alternative to SSE?
AFlask-Login
BFlask-SocketIO
CFlask-Mail
DFlask-RESTful
Step-by-Step Solution
Solution:

  1. Step 1: Identify Flask libraries for communication

    Flask-SocketIO is designed to add WebSocket support to Flask apps.

  2. Step 2: Eliminate unrelated libraries

    Flask-RESTful is for REST APIs, Flask-Mail for emails, Flask-Login for authentication, none handle WebSockets.

  3. Final Answer:

    Flask-SocketIO -> Option B

  4. Quick Check:

    WebSocket library = Flask-SocketIO [OK]
Quick Trick: Use Flask-SocketIO for WebSocket support in Flask [OK]
Common Mistakes:
MISTAKES
  • Confusing Flask-RESTful with WebSocket support
  • Choosing unrelated Flask extensions
  • Assuming Flask-Mail handles real-time updates

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