[Solved] You wrote this code to consume messages from a Confluent Cloud topic:consumer.subscribe(['payments']) message = consumer.poll(1.0) print(message.value())But you get an error:... | Kafka

Kafka - Kubernetes and Cloud Deployment

You wrote this code to consume messages from a Confluent Cloud topic:

consumer.subscribe(['payments'])
message = consumer.poll(1.0)
print(message.value())

But you get an error: 'NoneType' object has no attribute 'value'. What is the likely cause?

AThe print statement syntax is incorrect.

BThe topic 'payments' does not exist.

CNo messages were available to consume during poll timeout.

DThe consumer client was not connected to Confluent Cloud.

Step-by-Step Solution

Solution:

Step 1: Understand poll method behavior
poll returns None if no messages are received within the timeout period.
Step 2: Analyze error cause
Calling value() on None causes the error; this means no messages arrived during poll.
Final Answer:
No messages were available to consume during poll timeout. -> Option C
Quick Check:
poll returns None if no messages [OK]

Quick Trick: poll returns None if no messages, check before accessing [OK]

Common Mistakes:

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