Create a new connection on every request

Author: mariash

src/main/java/com/yosep/client/CallerController.java

@@ -6,6 +6,10 @@
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestTemplate;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.HttpMethod;
 
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
@@ -26,7 +30,14 @@ public String call() {
 
         System.out.println("URL: " + backendUrl);
 
-        String response = restTemplate.getForObject(backendUrl + "/hello", String.class);
+        HttpHeaders headers = new HttpHeaders();
+        headers.set("Keep-Alive", "timeout=0");
+        headers.set("Connection", "close");
+        HttpEntity<Void> requestEntity = new HttpEntity<>(headers);
+
+        ResponseEntity<String> response = restTemplate.exchange(
+          backendUrl + "/hello", HttpMethod.GET, requestEntity, String.class);
+
         return  new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(Calendar.getInstance().getTime()) + ", " + env.getProperty("vcap.application.instance_id") + ", " + response;
     }
-}
+}

src/main/resources/application.properties

@@ -1,2 +1,2 @@
-#backend.url=http://backend-app.apps.internal:8080
-backend.url=https://backend-app.apps.dhaka.cf-app.com
+backend.url=http://c2c-backend.apps.internal:8080
+#backend.url=https://backend-app.apps.dhaka.cf-app.com