What is the purpose of using Kafka when interacting with the service?

Apache Kafka is used for organizing reliable and scalable message exchange between services. The main purpose of Kafka when interacting with a service:

• Asynchronous communication: services can send and receive messages without waiting for a response, which increases performance and resilience.
• Buffering and fault tolerance: messages are stored in topics, allowing them to be processed with delay and retried in case of failures.
• Scalability: Kafka is easily scalable, supporting high throughput and a large number of consumers.
• Delivery guarantees: ensures reliable message delivery with configurable acknowledgment levels.

Example: Service A publishes order events to Kafka, Service B subscribes to these events and processes them, for example, to update a database or send notifications.