Caching is the ability to store copies of frequently accessed data in several places along the request-response path. When a consumer requests a resource representation, the request goes through a cache or a series of caches (local cache, proxy cache, or reverse proxy) toward the service hosting the resource.

What is cache in REST API?

Caching is the ability to store copies of frequently accessed data in several places along the request-response path. When a consumer requests a resource representation, the request goes through a cache or a series of caches (local cache, proxy cache, or reverse proxy) toward the service hosting the resource.

When should I cache API data?

You use caching when you have a highly concurrent need to read the same data, or for any application that has heavy read and write. You can also use caching for frequently accessed information. For example, caching is useful for COVID APIs.