Node-Red module for Apache Kafka publish/subscribe using the Confluent librdkafka C library
Node-RED (http://nodered.org) nodes for publish/subscribe messaging using the new Apache Kafka Consumer/Producer API and without requiring direct communications with Zookeeper. Based on the the high performance librdkafka Apache Kafka C/C++ library (https://github.com/edenhill/librdkafka).
Works with Apache Kafka 0.9.x and 0.10.x including Confluent Open Source and Confluent Enterprise version 2.x and 3.x.
Run the following command in the root directory of your Node-RED install
npm install node-red-contrib-rdkafka
You may see a lot of warnings as librdkafka compiles and installs, particularily on MacOS, but it does work.
Start node-red as normal
Point your browser to http://localhost:1880
You should see white rdkafka input and output nodes in the pallet on the left side of the screen.
Drag either rdkafka node to the canvas and double click to configure the topic, brokers, clientID and groupID.
Click on the pencil icon to the right of the broker selection box to configure a kafka broker connection if one does not already exist.
Publish and subscribe just as you would with the mqtt node with some small differences namely:
- topics should not contain "/" or "." characters
- kafka wildcard/regex subscriptions are not yet fully tested
- ensure you have unique Group IDs configured unless you want multiple consumers to be in a Kafka consumer group
Hans Jespersen, https://github.com/hjespers
#Feedback and Support
For more information, feedback, or support see https://github.com/hjespers/node-red-contrib-rdkafka/issues