| [[SingleMessageTransformations-SingleMessageTransformations]] |
| = Single Message Transformations |
| |
| Single Message Transforms (SMTs) is a Kafka API that provides a simple interface for |
| manipulating records as they flow through both the source and sink side of your |
| data pipeline. It operates on every single message in your data pipeline as it |
| passes through the Kafka Connect connector. |
| Single Message Transformations are applied to messages as they flow through Connect. |
| SMTs transform inbound messages after a source connector has produced them, |
| but before they are written to Kafka. SMTs transform outbound messages before they |
| are sent to a sink connector. The following SMTs are available for use with Kafka Connect. |
| |
| In addition to the https://kafka.apache.org/documentation/#connect_transforms[prebuilt transformations], |
| Camel Kafka Connector provides additional SMTs: |
| |
| [cols="^,^ ", options="header"] |
| |=== |
| |Transform | Description |
| |
| |xref:reference/transformers/fieldsToHeaders.adoc[FieldsToHeaders] |
| |Extract fields from a kafka connect record's value or key and copy the value in configured headers (struct + schema, map or copy the whole value/key are the supported options) |
| |
| |=== |
