React Native

Google Drive Refresh Access Token

See more Google Drive Examples

Demonstrates how to automatically refresh the access token when it expires. React Native

import { FileAccess, JsonObject, OAuth2 } from '@chilkat/react-native'

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

  // This example uses a previously obtained access token having permission for the 
  // Google Drive scope.

  // The access token (and refresh token) was previously saved to a JSON file with this format:
  // See Get Google Drive OAuth2 Access Token

  // {
  //   "access_token": "ya29.Gls-BsdxTWuenChv ... yzVIrXikkLxu5T6dy4I6GjADFardoz4Lruw",
  //   "expires_in": 3600,
  //   "refresh_token": "1/tMBJ ... 27D-Hk6rpQYBA",
  //   "scope": "https://www.googleapis.com/auth/drive",
  //   "token_type": "Bearer"
  // }

  const json = new JsonObject();
  const tokenFilePath = 'qa_data/tokens/googleDrive.json';
  json.loadFile(tokenFilePath);

  const oauth2 = new OAuth2();
  oauth2.accessToken = json.stringOf('access_token');
  oauth2.refreshToken = json.stringOf('refresh_token');

  oauth2.authorizationEndpoint = 'https://accounts.google.com/o/oauth2/v2/auth';
  oauth2.tokenEndpoint = 'https://www.googleapis.com/oauth2/v4/token';

  //  Replace these with actual values.
  oauth2.clientId = 'GOOGLE-CLIENT-ID';
  oauth2.clientSecret = 'GOOGLE-CLIENT-SECRET';
  oauth2.scope = 'https://www.googleapis.com/auth/drive';

  // Use OAuth2 to refresh the access token.
  try {
    await oauth2.refreshAccessTokenAsync();
  } catch {
    console.log(oauth2.lastErrorText);
    return;
  }

  console.log(oauth2.accessTokenResponse);

  // Save the new access token to our JSON file (so we can refresh it again when needed).
  json.updateString('access_token', oauth2.accessToken);

  const fac = new FileAccess();
  fac.writeEntireTextFile(tokenFilePath, json.emit(), 'utf-8', false);

  console.log('Access Token Refreshed!');
}