update

lib/services/perfecture_service.dart

@@ -0,0 +1,24 @@
+import 'dart:convert';
+import 'package:http/http.dart' as http;
+
+
+class PerfectureService{
+
+  static Future<List<dynamic>?> loadPerfectures() async {
+    List<dynamic> perfs = [];
+    String url = 'http://localhost:8100/api/perf/';
+    final response = await http.get(Uri.parse(url),
+      headers: <String, String>{
+        'Content-Type': 'application/json; charset=UTF-8',
+      },
+    );
+
+    if (response.statusCode == 200) {
+
+      perfs = json.decode(response.body);
+    }
+    return perfs;
+  }
+
+}
+