first commit

lib/services/api_service.dart

@@ -0,0 +1,28 @@
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+
+import 'package:kettlebell_tracker/services/device_service.dart';
+
+Future<void> sendTrainingToBackend({
+  required int reps,
+  required double rest,
+  required int sets,
+}) async {
+  final uuid = await DeviceIdService.getOrCreateUUID();
+  final url = Uri.parse('http://192.169.178.43:8000/trainings/');
+  final response = await http.post(
+    url,
+    headers: {'Content-Type': 'application/json'},
+    body: jsonEncode({
+      'reps': reps,
+      'rest': rest,
+      'sets': sets,
+      'uuid': uuid,
+    }),
+  );
+  if (response.statusCode == 200) {
+    print('Training erfolgreich an Backend gesendet.');
+  } else {
+    print('Fehler beim Senden: ${response.body}');
+  }
+}