up and download data

2026-01-16 15:24:37 +01:00
parent 49886655fd
commit dbc1252744
10 changed files with 271 additions and 7 deletions
--- a/lib/helpers/web_download_helper.dart
+++ b/lib/helpers/web_download_helper.dart
@@ -0,0 +1,15 @@
+import 'dart:convert';
+// ignore: avoid_web_libraries_in_flutter
+import 'dart:html' as html;
+
+void downloadJsonFileWeb(String jsonData, String fileName) {
+  final bytes = utf8.encode(jsonData);
+  final blob = html.Blob([bytes]);
+  final url = html.Url.createObjectUrlFromBlob(blob);
+
+  final anchor = html.AnchorElement(href: url)
+    ..setAttribute('download', fileName)
+    ..click();
+
+  html.Url.revokeObjectUrl(url);
+}