Node.js

Get the Number of IMAP Attachments

Demonstrates the Chilkat Imap.GetMailNumAttach method, which returns the number of ordinary attachments on a message. The only argument is the Email. This example fetches only the headers and reports the attachment count.

Background: A header-only fetch downloads no attachment bodies, so the Email object's own downloaded-attachment count can be 0. GetMailNumAttach instead reads the ckx-imap-numAttach metadata, giving the true count — which is what you want when building a message list that shows whether each message has attachments.

Chilkat Node.js Downloads

Download Chilkat for Node.js

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    //  Demonstrates the Imap.GetMailNumAttach method, which returns the number of ordinary
    //  attachments on a message.  The only argument is the Email.

    var imap = new chilkat.Imap();

    imap.Ssl = true;
    imap.Port = 993;

    success = imap.Connect("imap.example.com");
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    success = imap.Login("user@example.com","myPassword");
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    success = imap.SelectMailbox("Inbox");
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    //  Fetch only the message headers.  Attachment bodies are NOT downloaded, but the ckx-imap-*
    //  metadata describing the attachments is present, so the attachment info methods still work.
    var headersOnly = true;
    var useUid = false;
    var seqNum = 1;
    var email = new chilkat.Email();
    success = imap.FetchEmail(headersOnly,seqNum,useUid,email);
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }

    var numAttach = imap.GetMailNumAttach(email);
    console.log("This message has " + numAttach + " attachment(s).");

    success = imap.Disconnect();
    if (success == false) {
        console.log(imap.LastErrorText);
        return;
    }


}

chilkatExample();