Node.js

Fetch 1st N Headers of Search Results

Calls Search to get a message set, then downloads the 1st N messages in the message set. There are two equivalent ways of doing it: (1) iterate from 0 to N-1 and download each message individually, or (2) create a new message set that contains the 1st N messages and pass it to FetchHeaders. Both are demonstrated here. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var imap = new chilkat.Imap();

    // Connect to an IMAP server.
    // Use TLS
    imap.Ssl = true;
    imap.Port = 993;
    success = imap.Connect("imap.example.com");
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    // Login
    success = imap.Login("****","****");
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    // Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    // Get the message IDs of all the emails in the mailbox
    // We can choose to fetch UIDs or sequence numbers.
    var fetchUids = true;
    var messageSet = new chilkat.MessageSet();
    success = imap.QueryMbx("ALL",fetchUids,messageSet);
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    var numFound = messageSet.Count;
    if (numFound == 0) {
        console.log("No messages found.");
        return;
    }

    // Get the 1st 10 messages in messageSet.
    var upperBound = 10;
    if (numFound < upperBound) {
        upperBound = numFound;
    }

    var i = 0;
    var bUid = messageSet.HasUids;
    var headerOnly = true;
    var email = new chilkat.Email();

    while (i < upperBound) {

        success = imap.FetchEmail(headerOnly,messageSet.GetId(i),bUid,email);
        if (success == false) {
            console.log(imap.LastErrorText);
            return;
        }

        console.log(i + ": " + email.Subject);

        i = i+1;
    }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();

}

chilkatExample();