A Small hello world program for Kafka Producer and Consumer

1. Have Docker Installed

2. Run Zookeeper on a container using this command:

   docker run --name zookeeper -p 2181:2181 zookeeper

3. Run Kafka on another container using this command:

   docker run --name kafka -p 9092:9092
   -e KAFKA_ZOOKEEPER_CONNECT=127.0.0.1:2181
   -e KAFKA_ADVERTISED_LISTERNER = PLAINTEXT://127.0.0.1:9092
   -e KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1

4. Run partition.js to create topics and create number of partitions as 2

5. Run producer.js as node producer.js [argv] (Give Arguments as jerseyNumber mentioned in ./producer.js)

6. Run consumer.js to consumer message