Spring RestTemplate is a part of the Spring Framework, specifically in the Spring Web module, that provided a higher-level, more convenient way to make HTTP requests to RESTful web services. It simplified the process of interacting with RESTful APIs by abstracting away much of the low-level HTTP communication and providing a more intuitive Java-based API for making HTTP requests.
This repository uses Spring RestTemplate to make HTTP requests to que spring6-playground repository, available in my profile. Both applications need to be running in order to function properly.