The MarkLogic Kafka connector is a Kafka Connect sink and source connector. It supports writing data from a topic to a MarkLogic database as well as reading data from a MarkLogic database via an Optic query and sending the result to a topic.
Please see the User Guide for more information.
For developing and testing the MarkLogic Kafka connector, please see the guide on contributing. That guide also includes detailed instructions on how to use both Confluent Platform and Apache Kafka which may be useful if you are new to either product.