Dart

OneDrive -- Download Text File to Memory

See more OneDrive Examples

Downloads a text file (such as XML, JSON, plain-text, HTML, etc.) into a StringBuilder object.

Note: This example requires Chilkat v9.5.0.97 or greater.

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // This example uses the OAuth client credentials flow.
  // See How to Create an Azure App Registration for OAuth 2.0 Client Credentials

  // Use your client ID, client secret, and tenant ID in the following lines
  final json = CkJsonObject();
  json.updateString('client_id', '2871da2c-8176-4b7f-869b-2311aa82e743');
  json.updateString('client_secret', '2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH');
  json.updateString('scope', 'https://graph.microsoft.com/.default');
  json.updateString('token_endpoint', 'https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token');

  final http = CkHttp();
  http.authToken = json.emit();

  // Sends the following GET request:
  // GET https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:/{item-path}:/content

  // Make sure to automatically follow redirects
  http.followRedirects = true;

  // This example will download /Misc/hamlet.xml
  http.setUrlVar('item_path', 'Misc/hamlet.xml');
  http.setUrlVar('user_id', '4fe732c3-322e-4a6b-b729-2fd1eb5c6104');

  final sbXml = CkStringBuilder();
  final expectedCharset = 'utf-8';
  final url = 'https://graph.microsoft.com/v1.0/users/{\$user_id}/drive/root:/{\$item_path}:/content';
  try {
    http.downloadSb(url, expectedCharset, sbXml);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // If the response status code was not 200, then it failed.
  if (http.lastStatus != 200) {
    print('Response Status Code = ${http.lastStatus}');
    print('Failed.');
    return;
  }

  // If we got here, then the file was successfully downloaded.
  print('Download from OneDrive successful.');
  print('The file is contained in sbXml.');
}