How to Map Types Using Properties File in Kafka for Spring Boot Applications

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How to Map Types Using Properties File in Kafka for Spring Boot Applications

Understanding the Problem

Sample Custom Message Class

Here's a brief look at the CustomMessage class:

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Current Application Properties

Producer Properties

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Consumer Properties

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You're running into this issue:

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The Solution to Mapping Types

The key to solving this problem lies in how you map the custom messages in both the producer and consumer configurations.

Understanding the Mapping

The mapping is essentially a link between a class (your CustomMessage) and a token that you define (in this case, customMessage).

On the producer side, ensure you map only one type to each token, and likewise on the consumer side.

Proposed Changes

For the Producer:

[[See Video to Reveal this Text or Code Snippet]]

For the Consumer:
The consumer should map to the appropriate class that it will read messages from. Here, you should just have:

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Final Configuration Example

Producer Properties

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Consumer Properties

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Correctly mapping message types in your Kafka setup is essential for seamless communication between producers and consumers. By following the improved structure outlined above, you should be able to resolve the type mapping issues you observed and ensure that your applications can successfully send and receive messages.

Remember, for every unique type in your Kafka setup, ensure that the mapping corresponds correctly and distinctly for both producer and consumer configurations.

Feel free to reach out if you have any questions or need further clarification. Happy Coding!