Five API Performance Optimization Tricks that Every Java Developer Must Know

Why is your API response so slow? Maybe you need to solve these problems.

As back-end developers, we are always writing various APIs, whether it is the HTTP REST API that provides data support for the front-end web or the RPC API that provides internal use.

These APIs may perform well in the early stage of service, but with the growth of the number of users, the APIs that responded quickly at the beginning became slower and slower until users complained: “your system is terrible. I just browse a web page. Why is it so slow?”. At this time, you need to consider how to optimize your API performance.

To improve the performance of your API, we first need to know what problems will cause the slow response of the interface. API design needs to consider many aspects.

The development language level only accounts for a small part. Which part is poorly designed will become a performance bottleneck. There are many factors that can affect the performance of API, which can be summarized as follows.

• Database slow query
• Complex business logic
• Low-performance code
• Insufficient resources