[Solved] What is wrong with this code? from confluent_kafka import Producer p = Producer({'bootstrap.servers': 'localhost:9092'}) p.produce('topic', key=123, value='data') p.flush() | Kafka

Kafka - with Java/Python

What is wrong with this code?

from confluent_kafka import Producer

p = Producer({'bootstrap.servers': 'localhost:9092'})
p.produce('topic', key=123, value='data')
p.flush()

Aflush() must be called before produce()

BValue cannot be a string

Cbootstrap.servers cannot be localhost

DKey must be a bytes or string, not integer

Step-by-Step Solution

Solution:

Step 1: Check key type requirement
The key argument must be a string or bytes, not an integer.
Step 2: Validate other parts
Value as string is allowed; flush() order is correct; localhost is valid for testing.
Final Answer:
Key must be a bytes or string, not integer -> Option D
Quick Check:
Key type must be string/bytes [OK]

Quick Trick: Keys and values must be string or bytes [OK]

Common Mistakes:

MISTAKES

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What is wrong with this code?