What is rate limiting per API in spring boot?

Rate limiting is an architectural tactic for a server to limit access to an API.

It helps to: protect against server overload due to clients that call the server in a short time frame too often.

increase the fairness of how clients use server resources.

RestClient is becoming the replacement for RestTemplate. And in many cases,

WebClient isn’t really needed and it can be overkill if you're not using a reactive approach.