API Versions Overview

This article discusses the implementation of an API that interacts with MySQL and Kafka. The first version (1.0) introduces a basic API endpoint for vendor validity checks using a pseudocode example. Version 2.0 expands on this by incorporating a WebFlux aggregate API and more advanced MySQL operations. It includes pseudocode demonstrating the use of Spring's JdbcTemplate and a method for checking vendor IDs through a REST API endpoint.

Kafka Integration in Version 3.0

Version 3.0 showcases the integration of Kafka for message consumption, featuring a Kafka listener that processes incoming messages and validates vendors. Additionally, it introduces a gRPC service for checking vendor validity, allowing asynchronous communication and improved performance. The article emphasizes best practices for handling database interactions and managing state through Redis. Overall, it highlights the evolution of the API across three versions, focusing on scalability and efficiency.