When reading multiple topics in kafka how can I tell the topic of a specific message?

Question

I am working in C# and have the following:

consumer.Subscribe( new string[] {"topic1", "topic2"});
var cr = consumer.Consume();
console.Write($"key {cr.Message.Key}\r\nvalue {cr.Message.Value}");

How do I get the topic of a specific message when I am listening to more than 1 topic?

Thanks for the input. I was looking for it under cr.Message. It is cr.Topic. — Robert Lewit, Sep 03 '21 at 21:34

OneCricketeer · Answer 1 · 2023-05-17T13:34:33.287

2

The Consume function returns a ConsumeResult. This has a Topic attribute

https://github.com/confluentinc/confluent-kafka-dotnet/blob/master/src/Confluent.Kafka/ConsumeResult.cs#L32

edited May 17 '23 at 13:34

answered Sep 03 '21 at 21:23

OneCricketeer

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The link looks broken. Are you able to provide more details please? Or perhaps updated doc link? – Vinit Divekar May 16 '23 at 23:40
What exactly is unclear? When you consume a record and get a ConsumeResult object, you can read `.Topic` attribute – OneCricketeer May 17 '23 at 13:31

When reading multiple topics in kafka how can I tell the topic of a specific message?

1 Answers1