backend get request

src/main/java/com/frontend/stage/frontend/BasicRestController.java

@@ -4,6 +4,12 @@ package com.frontend.stage.frontend;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
 @RestController
 public class BasicRestController {
 
@@ -17,4 +23,32 @@ public class BasicRestController {
     public String index2() { return "it do work"; }
 
 
+    @RequestMapping("/stage-frontend/check")
+    public String getBackend() throws Exception {
+        return doRequest("http://stage-backend-service");
+    }
+
+    public String doRequest(String addr) throws Exception {
+        URL url = new URL(addr);
+        HttpURLConnection con = (HttpURLConnection) url.openConnection();
+        con.setRequestMethod("GET");
+        int responseCode = con.getResponseCode();
+        String responseVal;
+        if (responseCode == HttpURLConnection.HTTP_OK) {
+            BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
+            String inputLine;
+            StringBuilder response = new StringBuilder();
+
+            while ((inputLine = in.readLine()) != null) {
+                response.append(inputLine);
+            }
+            in.close();
+            responseVal = response.toString();
+        } else {
+            throw new Exception("something went wrong");
+        }
+        return responseVal;
+    }
+
+
 }