DevOps, CI/CD and Automation

I am trying to integrate google-recaptcha but no success.

main.js

                                'googlerecaptcha':'https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit',

define(['ojs/ojcore', 'knockout', 'jquery', 'appController', 'ckeditor', 'googlerecaptcha', 'ojs/ojlabel',
    'ojs/ojknockout', 'ojs/ojinputtext', 'ojs/ojformlayout'],
        function (oj, ko, $, app, grecaptcha) {
            /**
             * The view model for the main content view template
             */
            function feedbackViewModel() {
                var self = this;
                // For small screens: labels on top
                // For medium screens and up: labels inline
                this.labelEdge = ko.computed(function () {
                    return app.smScreen ? "top" : "start";
                }, this);
                
                onloadCallback = function (a) {
                    grecaptcha.render('submit', {
                        'sitekey': 'YOUR_API_KEY',
                        'callback': self.onSubmit
                    }, true);
                };
                this.handleActivated = function (info) {
                };
                self.onSubmit = function (token) {
                    console.info("google recatpcha onSubmit", token)
                    //do validation/application code using token
                    var data = {secret: grecaptcha, response: recaptchaToken};
                    $.post({
                        url: "https://www.google.com/recaptcha/api/siteverify",
                        form: data
                    }).then(function (e) {
                        //recaptcha service called...check result
                        var resp = JSON.parse(e);
                        if (resp.success == false) {
                            console.info("recaptcha token outcome is false")
                        } else {
                            console.info("recaptcha token validated")
                        }
                    });
                };
            }
            return feedbackViewModel;
        });

Getting error feedback.js:39 Uncaught TypeError: grecaptcha.render is not a function