[Solved] What is wrong with this Flask-SocketIO broadcast code?@socketio.on('notify') def notify_handler(msg): socketio.emit('notify_response', msg, broadcast=True, room='room1') | Flask

Flask - WebSocket and Real-Time

What is wrong with this Flask-SocketIO broadcast code?

@socketio.on('notify')
def notify_handler(msg):
    socketio.emit('notify_response', msg, broadcast=True, room='room1')

ACannot use broadcast=True and room parameter together

BEvent name 'notify_response' is invalid

Cbroadcast parameter must be False to use room

DFunction must call socketio.send instead of emit

Step-by-Step Solution

Solution:

Step 1: Understand broadcast and room parameters
broadcast=True sends to all clients; room targets specific clients. They cannot be used together.
Step 2: Check other options
Event name is valid; broadcast does not have to be False but cannot combine with room; send is not required.
Final Answer:
Cannot use broadcast=True and room parameter together -> Option A
Quick Check:
broadcast and room cannot be combined [OK]

Quick Trick: broadcast=True and room param cannot be used together [OK]

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What is wrong with this Flask-SocketIO broadcast code?