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Kafka REST Proxy

The Kafka REST Proxy provides a RESTful interface to a Kafka cluster. It makes it easy to produce and consume messages, view the state of the cluster, and perform administrative actions without using the native Kafka protocol or clients. Examples of use cases include reporting data to Kafka from any frontend app built in any language, ingesting messages into a stream processing framework that doesn't yet support Kafka, and scripting administrative actions.


You can download prebuilt versions of the Kafka REST Proxy as part of the Confluent Platform.

You can read our full installation instructions and the complete documentation

To install from source, follow the instructions in the Development section below.


The REST proxy includes a built-in Jetty server. The wrapper scripts bin/kafka-rest-start and bin/kafka-rest-stop are the recommended method of starting and stopping the service.


The following assumes you have Kafka and an instance of the REST Proxy running using the default settings and some topics already created.

    # Get a list of topics
    $ curl "http://localhost:8082/topics"

    # Get info about one topic
    $ curl "http://localhost:8082/topics/jsontest"

    # Produce a message with JSON data
    $ curl -X POST -H "Content-Type: application/vnd.kafka.json.v2+json" \
          --data '{"records":[{"value":{"name": "testUser"}}]}' \

    # Create a consumer for JSON data, starting at the beginning of the topic's
    # log. The consumer group is called "my_json_consumer" and the instance is "my_consumer_instance".
    $ curl -X POST -H "Content-Type: application/vnd.kafka.v2+json" -H "Accept: application/vnd.kafka.v2+json" \
    --data '{"name": "my_consumer_instance", "format": "json", "auto.offset.reset": "earliest"}' \
    # Subscribe the consumer to a topic
    $ curl -X POST -H "Content-Type: application/vnd.kafka.v2+json" --data '{"topics":["jsontest"]}' \
    # No content in response
    # Then consume some data from a topic using the base URL in the first response.

    $ curl -X GET -H "Accept: application/vnd.kafka.json.v2+json" \
    # Finally, close the consumer with a DELETE to make it leave the group and clean up
    # its resources.  
    $ curl -X DELETE -H "Accept: application/vnd.kafka.v2+json" \
      # No content in response


To build a development version, you may need a development versions of common, rest-utils, and schema-registry. After installing these, you can build the Kafka REST Proxy with Maven. All the standard lifecycle phases work.



The project is licensed under the Apache 2 license.