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Setting Up the HTTP Client A customized RestTemplate bean provides fine-graineed control over connection behavior. The configuration below binds a request factory with a timeout setting. import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.http.client.SimpleC ...

User Count Retrieval Endpoint POST /api/users/count Parameters Name Type Required Description query string No Search by username or phone active string No Filter: all, true, false Response { "status": 200, "result": { "totalUsers": 150 } } User List Retrieval Endpoint POST /api/users Parame ...

Understanding HTTP Before diving into REST, you should have a solid understanding of the Hypertext Transfer Protocol (HTTP). HTTP was created in 1989 by Tim Berners-Lee at CERN, the European Organization for Nuclear Rseearch. In the early days of computing, researchers would publish their findings in physical journals, which meant lengthy turna ...

@Controller Applied at the class level, @Controller marks a class as a Spring MVC controller and registers it as a Spring bean. The DispatcherServlet automatically detects such classes and routes incoming HTTP requests to methods annotated with @RequestMapping. This annotation is specifically intended for web controllers—use @Component or other ...

API Design HttpClient provides a cleaner, more intuitive API compared to WebRequest. The framework encapsulates HTTP request components—methods, URLs, headers, and body content—into dedicated objects, streamlining development. Sending a GET request with HttpClient requires a single call to GetAsync(url), while POST requests use PostAsync(url, c ...