Introduction
Apache Kafka is the most widely used reliable and scalable eventing platform. It helps in providing the base for a fast, scalable, fault-tolerant, event-driven microservice architecture. Any type of data can be published into a Kafka topic and can be read from. Kafka does not provide an out-of-the-box schema validation system and hence is prone to junk data being fed into a topic.
Confluent has devised a concept of a schema registry that can be used to implement type checking of messages in any Kafka installation. The Schema Registry needs the message schema to be registered against a topic and it enforces that only messages conforming to the schema are sent to the topic.