CQRS solves a very particular set of problems, like executing queries in event-stores or building web applications with extremely high scalability requirements.
This post shows how TiDB helps Zhihu eliminate their database bottleneck and horizontally scale their Hive Metastore database to meet the growing business needs.
Nowadays every application is moving to microservice architecture. In this architecture, API Gateway has an important role. Let's build a simple API gateway using Java.