[Solved] Identify the error in this Flask RQ task definition:from rq import Queue from redis import Redis redis_conn = Redis() queue = Queue(connection=redis_conn) def background_task(x): return x * 2 queue.... | Flask

Flask - Background Tasks

Identify the error in this Flask RQ task definition:

from rq import Queue
from redis import Redis

redis_conn = Redis()
queue = Queue(connection=redis_conn)

def background_task(x):
    return x * 2

queue.enqueue(background_task)

AQueue must be created inside the task function

Benqueue is missing the argument for the task function

Cbackground_task should be decorated with @app.task

DRedis connection is not initialized

Step-by-Step Solution

Solution:

Step 1: Check enqueue usage
enqueue requires the function and its arguments; here no argument is passed.
Step 2: Validate other parts
Redis connection is initialized; no decorator needed; queue creation outside is fine.
Final Answer:
enqueue is missing the argument for the task function -> Option B
Quick Check:
enqueue needs function args = D [OK]

Quick Trick: Always pass task arguments when enqueueing [OK]

Common Mistakes:

MISTAKES

Forgetting to pass function arguments
Thinking @app.task decorator is required
Misplacing queue creation

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More Flask Quizzes

Identify the error in this Flask RQ task definition:

Step 1: Check enqueue usage

Step 2: Validate other parts

Final Answer:

Quick Check:

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