Check for IMAP IDLE Mailbox Updates

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Demonstrates the Chilkat Imap.IdleCheck method, which waits for mailbox updates after IdleStart has entered IDLE mode. The only argument is a timeout in milliseconds; 0 performs a non-blocking poll of notifications already received. This example waits up to 30 seconds.

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

async function chilkatExample() {
  // Demonstrates the Imap.IdleCheck method, which waits for IMAP IDLE mailbox updates and returns
  // them.  The only argument is a timeout in milliseconds.  Use 0 for a non-blocking poll.

  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;
  }

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

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

  // Wait up to 30 seconds for mailbox updates.  IdleCheck returns a string, so assign it to a
  // string variable and check for success.
  const timeoutMs = 30000;
  let updates: string;
  try {
    updates = await imap.idleCheckAsync(timeoutMs);
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  console.log(updates);

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

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