React Native

Check Whether the IMAP Session Is Authenticated

Demonstrates the Chilkat Imap.IsLoggedIn method, which indicates whether this object is in an authenticated IMAP session. It reports the last known state and does not send a command to the server. This example connects, logs in, and checks the state.

Background: An IMAP session has two levels: connected (the TCP/TLS link is up) and authenticated (login succeeded). IsLoggedIn reports the second — useful when reusing a long-lived Imap object to decide whether you still need to log in before performing mailbox operations. Like IsConnected, it reflects cached state and doesn't contact the server.

Chilkat React Native Downloads

Download Chilkat for React Native

React Native

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

async function chilkatExample() {
  // Demonstrates the Imap.IsLoggedIn method, which indicates whether this object is in an
  // authenticated IMAP session.  It reports the last known state and does not send a command
  // to the server.

  const imap = new Imap();

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

  try {
    await imap.connectAsync('imap.example.com');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  try {
    await imap.loginAsync('user@example.com', 'myPassword');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Check whether the session is authenticated.
  const loggedIn = imap.isLoggedIn();
  if (loggedIn) {
    console.log('The session is authenticated.');
  } else {
    console.log('The session is not authenticated.');
  }

  try {
    await imap.disconnectAsync();
  } catch {
    console.log(imap.lastErrorText);
    return;
  }
}