Dart Flutter export share JSON file or any file you like.

This article explains how to export a text content, json list or object in an flutter application to the device. See the following image for a preview.

Here we used the following code:

import 'dart:convert';
import 'package:share_plus/share_plus.dart';
import 'package:path_provider/path_provider.dart';
import 'dart:io';
import 'package:intl/intl.dart';Future convertStringToFileShare(BuildContext context, String imputListAsString) async {
  var filename = 'reperti_2022.par';
  final temp = await getTemporaryDirectory();
  final path = '${temp.path}/${filename}';
  
  File(path).writeAsString(imputListAsString);
  await Share.shareFiles([path]);
}void main() {   var fileContent = '{"text":"here is the content of the file"}';
   convertStringToFileShare(fileContent);}// call the function with the following command
// convertStringToFileShare("file content");