(Node.js) IMAP Copy Email from Selected Folder to Another Folder

Copies an email from the selected mailbox (folder) to another mailbox (folder).

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    // This example copies an email from one mailbox to another.
    var imap = new chilkat.Imap();

    // Turn on session logging for debugging.
    imap.KeepSessionLog = true;

    // Connect using TLS.
    imap.Ssl = true;
    imap.Port = 993;
    var success = imap.Connect("imap.example.com");
    if (success !== true) {
        console.log(imap.LastErrorText);
        return;
    }

    // Authenticate
    success = imap.Login("email_account_login","email_account_password");
    if (success !== true) {
        console.log(imap.LastErrorText);
        return;
    }

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

    // Search for messages having "Test email" in the subject.
    var fetchUids = true;
    // messageSet: MessageSet
    var messageSet = imap.Search("SUBJECT \"Test email\"",fetchUids);
    if (imap.LastMethodSuccess !== true) {
        console.log(imap.LastErrorText);
        return;
    }

    // Assuming we have 1 or more messages in the set, copy the 1st one to the folder "Inbox.testFolder"
    if (messageSet.Count > 0) {
        success = imap.Copy(messageSet.GetId(0),messageSet.HasUids,"Inbox/testFolder");
        if (success !== true) {
            console.log(imap.LastErrorText);
        }

    }

    console.log(imap.SessionLog);

    console.log("OK");

    // Sample sessiong log:

    // ----INFO----
    // Connecting to IMAP server at outlook.office365.com:993
    // ----IMAP RESPONSE----
    // * OK The Microsoft Exchange IMAP4 service is ready. [QgBMADAAUABSADAAMQAwADIAQwBBADAAMAA3ADAALgBwAHIAbwBkAC4AZQB4AGMAaABhAG4AZwBlAGwAYQBiAHMALgBjAG8AbQA=]
    // ----IMAP REQUEST----
    // aaab LOGIN "chilkat@live.com"
    // ----IMAP RESPONSE----
    // aaab OK LOGIN completed.
    // ----IMAP REQUEST----
    // aaac SELECT "Inbox"
    // ----IMAP RESPONSE----
    // * 28 EXISTS
    // * 0 RECENT
    // * FLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)
    // * OK [PERMANENTFLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)] Permanent flags
    // * OK [UNSEEN 23] Is the first unseen message
    // * OK [UIDVALIDITY 14] UIDVALIDITY value
    // * OK [UIDNEXT 6416] The next unique identifier value
    // aaac OK [READ-WRITE] SELECT completed.
    // ----IMAP REQUEST----
    // aaad UID SEARCH SUBJECT "Test email"
    // ----IMAP RESPONSE----
    // * SEARCH 6414
    // aaad OK SEARCH completed.
    // ----IMAP REQUEST----
    // aaae UID COPY 6414 "Inbox/testFolder"
    // ----IMAP RESPONSE----
    // aaae OK [COPYUID 180 6414 1] COPY completed.
    // 
    // OK

}

chilkatExample();