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Technology preview
The Record Validation filter is a technology preview.
Technology Preview features are not supported with Red Hat production service-level agreements (SLAs) and might not be functionally complete; therefore, Red Hat does not recommend implementing any Technology Preview features in production environments. This Technology Preview feature provides early access to upcoming product innovations, enabling you to test functionality and provide feedback during the development process. For more information about the support scope, see Technology Preview Features Support Scope.
About this guide
This guide covers using the Streams for Apache Kafka Proxy Record Validation Filter to validate records sent by Kafka client to Kafka brokers. Refer to other Streams for Apache Kafka Proxy guides for information on running the proxy or for advanced topics such as plugin development.
The Record Validation filter validates records sent by a producer. Only records that pass the validation are sent to the broker. This filter can be used to prevent poison messages—such as those containing corrupted data or invalid formats—from entering the Kafka system, which may otherwise lead to consumer failure.
The filter currently supports two modes of operation:
- Schema Validation ensures the content of the record conforms to a schema stored in an Apicurio Registry.
- JSON Syntax Validation ensures the content of the record contains syntactically valid JSON.
Validation rules can be applied to check the content of the Kafka record key or value.
If the validation fails, the product request is rejected and the producing application receives an error response. The broker will not receive the rejected records.
This filter is currently in incubation and available as a preview. We would not recommend using it in a production environment.
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