Hands-On RESTful API Design Patterns and Best Practices

Caching constraint in REST

Caching is the ability to store frequently accessed data (a response in this context) to serve the client requests, and never having to generate the same response more than once until it needs to be. Well-managed caching eliminates partial or complete client-server interactions and still serves the client with the expected response. Obviously, caching brings scalability and also performance benefits with faster response times and reduced server load.

As you can see in the next diagram, the service consumer (Client) receives the response from the cache and not from the server itself, and a few other responses are directly from the server as well. So, caching helps with the partial or complete elimination of some ...