React Native

Office365 IMAP with OAuth2 Authentication

See more Office365 Examples

Demonstrates how to authenticate using OAuth2 with outlook.office365.com. React Native

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

async function chilkatExample() {
  // An Office365 OAuth2 access token must first be obtained prior
  // to running this code.

  // Getting the OAuth2 access token for the 1st time requires the O365 account owner's 
  // interactive authorizaition via a web browser.  Afterwards, the access token
  // can be repeatedly refreshed automatically.

  // See the following examples for getting and refreshing an OAuth2 access token

  // Get Office365 SMTP/IMAP/POP3 OAuth2 Access Token
  // Refresh Office365 SMTP/IMAP/POP3 OAuth2 Access Token

  // First get our previously obtained OAuth2 access token.
  const jsonToken = new JsonObject();
  try {
    jsonToken.loadFile('qa_data/tokens/office365.json');
  } catch {
    console.log('Failed to open the office365 OAuth JSON file.');
    return;
  }

  const imap = new Imap();

  imap.ssl = true;
  imap.port = 993;

  // Connect to the Office365 IMAP server.
  try {
    await imap.connectAsync('outlook.office365.com');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Use OAuth2 authentication.
  imap.authMethod = 'XOAUTH2';

  // Login using our username (i.e. email address) and the access token for the password.
  try {
    await imap.loginAsync('OFFICE365_EMAIL_ADDRESS', jsonToken.stringOf('access_token'));
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  console.log('O365 OAuth authentication is successful.');

  // Do something...
  try {
    await imap.selectMailboxAsync('Inbox');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Your application can continue to do other things in the IMAP session....

  // When finished, logout and close the connection.
  await imap.logoutAsync();
  await imap.disconnectAsync();

  console.log('Finished.');
}