Add Client, Server, Common

OOPP/Client/src/main/java/gogreen/client/rest/UserService.java

@@ -0,0 +1,33 @@
+package gogreen.client.rest;
+
+import gogreen.common.UserDTO;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+@Component
+public class UserService {
+    @Autowired
+    RestTemplate restTemplate;
+
+    @Bean
+    public RestTemplate restTemplate(RestTemplateBuilder builder) {
+        return builder.build();
+    }
+
+    public UserDTO registerUser(String name, String password) {
+        HttpHeaders headers = new HttpHeaders();
+        headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
+        UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl("http://localhost:8080/registerUser")
+                .queryParam("name", name)
+                .queryParam("password", password);
+        HttpEntity<?> entity = new HttpEntity<>(headers);
+        return this.restTemplate.getForObject(builder.build().encode().toUri(), UserDTO.class);
+    }
+}