diff --git a/swift_heart_rate_real_time-master/ElecDemo.xcodeproj/project.xcworkspace/xcuserdata/andreas.xcuserdatad/UserInterfaceState.xcuserstate b/swift_heart_rate_real_time-master/ElecDemo.xcodeproj/project.xcworkspace/xcuserdata/andreas.xcuserdatad/UserInterfaceState.xcuserstate
index 295ae21..5d35f0e 100644
Binary files a/swift_heart_rate_real_time-master/ElecDemo.xcodeproj/project.xcworkspace/xcuserdata/andreas.xcuserdatad/UserInterfaceState.xcuserstate and b/swift_heart_rate_real_time-master/ElecDemo.xcodeproj/project.xcworkspace/xcuserdata/andreas.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/swift_heart_rate_real_time-master/ElecDemo/APIFetcher.swift b/swift_heart_rate_real_time-master/ElecDemo/APIFetcher.swift
index c782b34..9380cdd 100644
--- a/swift_heart_rate_real_time-master/ElecDemo/APIFetcher.swift
+++ b/swift_heart_rate_real_time-master/ElecDemo/APIFetcher.swift
@@ -5,31 +5,3 @@
 //  Created by NhatHM on 8/13/19.
 //  Copyright © 2019 GST.PID. All rights reserved.
 //
-
-import Foundation
-
-class APIFetcher {
-    let defaultSession = URLSession(configuration: URLSessionConfiguration.default)
-    var dataTask: URLSessionDataTask?
-    
-    func postHeartRateToServer(url: String, completion: @escaping (String?) -> ()) {
-        
-        let url: URL = URL(string: url)!
-        
-        dataTask = defaultSession.dataTask(with: url) { data, response, error in
-            if let error = error {
-                print(error.localizedDescription)
-                completion(nil)
-            } else if let httpResponse = response as? HTTPURLResponse {
-                if httpResponse.statusCode == 200 {
-                    completion("Sucess get data from server")
-                } else {
-                    print("\(httpResponse.statusCode)")
-                    completion(nil)
-                }
-            }
-        }
-        
-        dataTask?.resume()
-    }
-}