moved api service to class

src/main/java/com/student/details/services/APIService.java

+package com.student.details.services;
+
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Scanner;
+
+public class APIService {
+
+  public static JSONObject get(String stringUrl) {
+
+    try {
+      URL url = new URL(stringUrl);
+      HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+      conn.setRequestMethod("GET");
+      conn.connect();
+
+      int responseCode = conn.getResponseCode();
+      if (responseCode != 200) {
+        throw new RuntimeException("" + responseCode);
+      } else {
+        String res = "";
+        Scanner scanner = new Scanner(url.openStream());
+
+        while (scanner.hasNext()) {
+          String nextVal = scanner.nextLine();
+          res += nextVal;
+        }
+
+        JSONParser parser = new JSONParser();
+        JSONObject json = (JSONObject) parser.parse(res);
+        return json;
+      }
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+
+    return new JSONObject();
+
+  }
+
+}

src/main/java/com/student/details/services/StudentService.java

@@ -16,37 +16,6 @@ public class StudentService {
     @Autowired
     StudentRepository studentRepository;
 
-    public JSONObject fetchService(String stringUrl) {
-        System.out.println("demo api");
-        try {
-            URL url = new URL(stringUrl);
-            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-            conn.setRequestMethod("GET");
-            conn.connect();
-
-            int responseCode = conn.getResponseCode();
-            if (responseCode != 200) {
-                throw new RuntimeException("" + responseCode);
-            } else {
-                String res = "";
-                Scanner scanner = new Scanner(url.openStream());
-
-                while (scanner.hasNext()) {
-                    String nextVal = scanner.nextLine();
-                    res += nextVal;
-                }
-
-                JSONParser parser = new JSONParser();
-                JSONObject json = (JSONObject) parser.parse(res);
-                return json;
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-
-        return new JSONObject();
-    }
-
     public List<Student> findAllStudents() {
         return studentRepository.findAll();
     }