Node.js

POP3 GMail XOAUTH2 Authentication

See more GMail SMTP/IMAP/POP Examples

Demonstrates using OAuth2 authentication with pop.gmail.com.

Note: This example requires Chilkat v9.5.0.83 or greater.

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var mailman = new chilkat.MailMan();

    mailman.MailHost = "pop.gmail.com";
    mailman.MailPort = 995;
    mailman.PopSsl = true;

    mailman.PopUsername = "my_account@gmail.com";

    //  If using OAuth2 authentication, leave the password empty.
    mailman.PopPassword = "";

    //  Load our previously obtained OAuth2 access token.
    //  See Getting a GMail POP3 OAuth2 Access Token
    var jsonToken = new chilkat.JsonObject();
    success = jsonToken.LoadFile("qa_data/tokens/gmail_pop3.json");
    if (success == false) {
        console.log(jsonToken.LastErrorText);
        return;
    }

    mailman.OAuth2AccessToken = jsonToken.StringOf("access_token");

    //  Make the TLS connection to the POP3 server.
    success = mailman.Pop3Connect();
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    //  Authenticate..
    success = mailman.Pop3Authenticate();
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    //  Find out how many emails are on the server..
    var numEmails = mailman.CheckMail();
    if (numEmails < 0) {
        console.log(mailman.LastErrorText);
        return;
    }

    //  Examine the POP3 session log:
    console.log(mailman.Pop3SessionLog);

    //  The POP3 session log will look something like this:

    //  **** Connected to pop.gmail.com:995
    //  < +OK Gpop ready for requests from 87.9.200.42 l16mb86351205iok
    //  > AUTH XOAUTH2 dXNlcj1....VaMDJFAQE=
    //  < +OK Welcome.
    //  > STAT
    //  < +OK 301 1627357
    //  
    //  -- Finished.

    //  End the POP3 session and close the connection to the GMail server.
    success = mailman.Pop3EndSession();
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    console.log("-- Finished.");

}

chilkatExample();