diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..81525b4
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,25 @@
+{
+  // Utilisez IntelliSense pour en savoir plus sur les attributs possibles.
+  // Pointez pour afficher la description des attributs existants.
+  // Pour plus d'informations, visitez : https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "desktopapp",
+      "request": "launch",
+      "type": "dart"
+    },
+    {
+      "name": "desktopapp (profile mode)",
+      "request": "launch",
+      "type": "dart",
+      "flutterMode": "profile"
+    },
+    {
+      "name": "desktopapp (release mode)",
+      "request": "launch",
+      "type": "dart",
+      "flutterMode": "release"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/lib/utils/requests.dart b/lib/utils/requests.dart
new file mode 100644
index 0000000..98a0960
--- /dev/null
+++ b/lib/utils/requests.dart
@@ -0,0 +1,109 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:desktopapp/utils/logger.dart';
+import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+enum AuthentificationType { code, refreshToken }
+
+enum AlertType { follow, subscription, donation, host }
+
+extension AlertTypeExtension on AlertType {
+  String get value {
+    switch (this) {
+      case AlertType.follow:
+        return 'follow';
+      case AlertType.subscription:
+        return 'subscription';
+      case AlertType.donation:
+        return 'donation';
+      case AlertType.host:
+        return 'host';
+    }
+  }
+}
+
+class Requests {
+  static Future<bool> authorize(String token, AuthentificationType type) async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    Dio dio = Dio(BaseOptions(
+        contentType: Headers.jsonContentType,
+        responseType: ResponseType.json,
+        validateStatus: (_) => true));
+
+    var objectData = {
+      'grant_type': 'authorization_code',
+      'client_id': prefs.getString('client_id'),
+      'client_secret': prefs.getString('client_secret'),
+      'redirect_uri': 'http://localhost:1234/',
+      type == AuthentificationType.code ? 'code' : 'refresh_token': token,
+    };
+
+    var data = jsonEncode(objectData);
+
+    var response =
+        await dio.post('https://streamlabs.com/api/v1.0/token', data: data);
+
+    if (response.statusCode == HttpStatus.ok) {
+      jsonDecode(response.data).forEach((key, value) =>
+          prefs.setString('credentials.$key', value.toString()));
+      Logger.log(LoggerType.info, Requests,
+          'Authorization success : ${response.data}');
+      return true;
+    } else {
+      Logger.log(LoggerType.error, Requests,
+          'Authorization failed : ${response.data}');
+      return false;
+    }
+  }
+
+  static Future<bool> sendAlert(String message,
+      {AlertType type = AlertType.donation,
+      String? imageHref,
+      String? soundHref,
+      Duration? duration,
+      Color? specialTextColor}) async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    Dio dio = Dio(BaseOptions(
+        contentType: Headers.jsonContentType,
+        responseType: ResponseType.json,
+        validateStatus: (_) => true));
+
+    var accessToken = prefs.getString('credentials.access_token');
+
+    var objectMap = {
+      'type': type.value,
+      'message': message,
+      'access_token': accessToken,
+    };
+
+    if (imageHref != null) objectMap.putIfAbsent('image_href', () => imageHref);
+    if (soundHref != null) objectMap.putIfAbsent('sound_href', () => soundHref);
+    if (duration != null) {
+      objectMap.putIfAbsent('duration', () => duration.inSeconds.toString());
+    }
+    if (specialTextColor != null) {
+      objectMap.putIfAbsent(
+          'special_text_color',
+          () =>
+              "#${specialTextColor.red.toRadixString(16).padLeft(2, '0')}${specialTextColor.green.toRadixString(16).padLeft(2, '0')}${specialTextColor.blue.toRadixString(16).padLeft(2, '0')}${specialTextColor.alpha.toRadixString(16).padLeft(2, '0')}");
+    }
+
+    var data = jsonEncode(objectMap);
+
+    var response =
+        await dio.post('https://streamlabs.com/api/v1.0/alerts', data: data);
+
+    if (response.statusCode == HttpStatus.ok) {
+      Logger.log(LoggerType.info, Requests,
+          'Authorization success : ${response.data}');
+    } else {
+      Logger.log(LoggerType.error, Requests,
+          'Authorization error : ${response.data} with $data and ${response.requestOptions.headers}');
+    }
+
+    return response.statusCode == HttpStatus.ok;
+  }
+}
diff --git a/lib/widgets/components/tutorials/step3.dart b/lib/widgets/components/tutorials/step3.dart
index 3c5e1ca..81dc140 100644
--- a/lib/widgets/components/tutorials/step3.dart
+++ b/lib/widgets/components/tutorials/step3.dart
@@ -1,9 +1,8 @@
-import 'dart:convert';
 import 'dart:io';
 
 import 'package:desktopapp/classes/routes.dart';
 import 'package:desktopapp/utils/logger.dart';
-import 'package:dio/dio.dart';
+import 'package:desktopapp/utils/requests.dart';
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:url_launcher/url_launcher.dart';
@@ -86,27 +85,7 @@ class Step3 extends StatelessWidget {
                   ],
                 ));
       } else {
-        Dio dio = Dio(BaseOptions(
-            contentType: Headers.jsonContentType,
-            responseType: ResponseType.json,
-            validateStatus: (_) => true));
-
-        var data = jsonEncode({
-          'grant_type': 'authorization_code',
-          'client_id': prefs.getString('client_id'),
-          'client_secret': prefs.getString('client_secret'),
-          'redirect_uri': 'http://localhost:1234/',
-          'code': code,
-        });
-
-        var response =
-            await dio.post('https://streamlabs.com/api/v1.0/token', data: data);
-
-        if (response.statusCode == HttpStatus.ok) {
-          jsonDecode(response.data).forEach((key, value) =>
-              prefs.setString('credentials.$key', value.toString()));
-          Logger.log(LoggerType.info, this,
-              'Authorization success : ${response.data}');
+        if (await Requests.authorize(code, AuthentificationType.code)) {
           showDialog(
               context: context,
               builder: (_) => AlertDialog(
@@ -124,8 +103,6 @@ class Step3 extends StatelessWidget {
                     ],
                   ));
         } else {
-          Logger.log(LoggerType.error, this,
-              'Authorization error : ${response.data} with $data and ${response.requestOptions.headers}');
           showDialog(
               context: context,
               builder: (_) => AlertDialog(
diff --git a/lib/widgets/pages/home.dart b/lib/widgets/pages/home.dart
index f70086a..719c9be 100644
--- a/lib/widgets/pages/home.dart
+++ b/lib/widgets/pages/home.dart
@@ -1,9 +1,5 @@
-import 'dart:convert';
-import 'dart:io';
-
 import 'package:desktopapp/classes/routes.dart';
-import 'package:desktopapp/utils/logger.dart';
-import 'package:dio/dio.dart';
+import 'package:desktopapp/utils/requests.dart';
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -19,29 +15,7 @@ class HomePage extends StatelessWidget {
       ),
       TextButton(
           onPressed: () async {
-            Dio dio = Dio(BaseOptions(
-                contentType: Headers.jsonContentType,
-                responseType: ResponseType.json,
-                validateStatus: (_) => true));
-
-            var accessToken = prefs.getString('credentials.access_token');
-
-            var data = jsonEncode({
-              'type': 'donation',
-              'message': '*MrDev023* *Break* Test !',
-              'access_token': accessToken,
-              'special_text_color': '#ff00ff',
-              'image_href': 'https://postimgs.org/img/logo.png',
-              'sound_href': ''
-            });
-
-            var response = await dio
-                .post('https://streamlabs.com/api/v1.0/alerts', data: data);
-
-            if (response.statusCode == HttpStatus.ok) {
-              prefs.setString('credentials', response.data.toString());
-              Logger.log(LoggerType.info, this,
-                  'Authorization success : ${response.data}');
+            if (await Requests.sendAlert('*MrDev023* *Break* Test !')) {
               showDialog(
                   context: context,
                   builder: (_) => AlertDialog(
@@ -56,8 +30,6 @@ class HomePage extends StatelessWidget {
                         ],
                       ));
             } else {
-              Logger.log(LoggerType.error, this,
-                  'Authorization error : ${response.data} with $data and ${response.requestOptions.headers}');
               showDialog(
                   context: context,
                   builder: (_) => AlertDialog(