var soap = require('soap');
var url = 'your WSDL url';
var auth = "Basic " + new Buffer("your username" + ":" + "your password").toString("base64");

soap.createClient(url, { wsdl_headers: {Authorization: auth} }, function(err, client) {
});

var soap = require('soap');
var url = 'AXLAPI.wsdl';  // Download this file and xsd files from cucm admin page
var auth = "Basic " + new Buffer("your username" + ":" + "your password").toString("base64");
soap.createClient(url,function(err,client){
  client.addHttpHeader('Authorization',auth);
});

var soap = require('soap');
var url = 'your WSDL url';

soap.createClient(url, function(err, client) {
    client.setSecurity(new soap.BasicAuthSecurity('your username','your password'));
});

var auth = "Basic " + new Buffer('username' + ':' + 'password').toString("base64");

var client = Soap.createClient('wsdlUrl', { wsdl_headers: { Authorization: auth } }, (err, client) => {
    if (err) {
        throw err;
    } else {
        client.yourMethod();
    }
});

const security = new soap.BasicAuthSecurity(username, password);
const wsdl_headers = {};
security.addHeaders(wsdl_headers);
soap.createClientAsync(url, { wsdl_headers }).then((err, client) => {
    client.setSecurity(security);
    // etc.
});

const security = new soap.NTLMSecurity(username, password, domain, workstation);
const wsdl_headers = {}, wsdl_options = {};
security.addHeaders(wsdl_headers);
security.addOptions(wsdl_options);
soap.createClientAsync(url, { wsdl_headers, wsdl_options }).then((err, client) => {
    client.setSecurity(security);
    // etc.
});

I am getting this error:
    Error [ERR_TLS_CERT_ALTNAME_INVALID]: Hostname/IP does not match certificate's altnames

    Here's my code:

    var soap = require('soap');
    var url = 'your WSDL url';
    var auth = "Basic " + new Buffer("your username" + ":" + "your password").toString("base64");

soap.createClient(url, { wsdl_headers: {Authorization: auth} }, function(err, client) {
    client.setSecurity(new soap.BasicAuthSecurity('your username','your password'));
    client.yourfunction(args, function (err, result) {
    if (err) {
                    console.log('Error: ', err);
             }
    else {
        console.log('Result: ', result);
    }
});