[Solved] Given this Flask-SocketIO code snippet:from flask_socketio import SocketIO socketio = SocketIO(app) @socketio.on('message') def handle_message(msg): socketio.... | Flask

Flask - WebSocket and Real-Time

Given this Flask-SocketIO code snippet:

from flask_socketio import SocketIO
socketio = SocketIO(app)

@socketio.on('message')
def handle_message(msg):
    socketio.emit('response', msg, broadcast=True)

What happens when a client sends a 'message' event with data 'Hi'?

AOnly the sender client receives a 'response' event with data 'Hi'

BAll connected clients receive a 'response' event with data 'Hi'

CNo clients receive any event

DAn error occurs because broadcast=True is invalid

Step-by-Step Solution

Solution:

Step 1: Analyze the event handler
When 'message' event is received, the server emits 'response' with the same message to all clients because broadcast=True.
Step 2: Understand broadcast=True effect
Broadcast=True sends the event to all connected clients, not just the sender.
Final Answer:
All connected clients receive a 'response' event with data 'Hi' -> Option B
Quick Check:
broadcast=True sends to all clients [OK]

Quick Trick: broadcast=True sends to all clients, not just sender [OK]

Common Mistakes:

MISTAKES

Thinking only sender gets the message
Believing broadcast=True causes error
Assuming no event is sent

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More Flask Quizzes

Given this Flask-SocketIO code snippet:

Step 1: Analyze the event handler

Step 2: Understand broadcast=True effect

Final Answer:

Quick Check:

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