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lib/src/components/network_utility.dart

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+import 'package:flutter/cupertino.dart';
+import 'package:http/http.dart' as http;
+
+class NetworkUtility {
+  static Future<String?> fetchUrl(Uri uri,
+      {Map<String, String>? headers}) async {
+    try {
+      final response = await http.get(uri, headers: headers);
+      if (response.statusCode == 200) {
+        return response.body;
+      }
+    } catch (e) {
+      debugPrint('error - ${e.toString()}');
+    }
+    return null;
+  }
+}