Code for article

surveyjs_with_ajax.js

Survey.StylesManager.applyTheme("modern");

var surveyJSON = {"pages":[{"name":"page1","elements":[{"type":"rating","name":"rate","title":"On a scale of one to five, how likely are you to recommend my article to a friend or colleague? *","minRateDescription":"(Most unlikely)","maxRateDescription":"(Most likely)"}]}]};

function sendDataToServer(survey, options) {
	//Display information about sending data
	options.showDataSaving();
	$.ajax({
		url: 'https://script.google.com/macros/s/AKfycby_XZaWjAb7DMbtXdOsEsPiwS3lM4NkLPhi5f3D1fdhCatn5sOQ0r2v/exec',
		type: 'post',
		data: JSON.stringify(survey.data),
		//We need tell web app that we use plain text.
		headers: {
			"Content-Type": "text/plain"
		},
		processData: false,
		complete: function(res, status) {
			if (status == 'success') {
				//Show that data was send successfully
				options.showDataSavingSuccess();
			}else {
				//Display retry button in case of error
				options.showDataSavingError();
			}
		},
	});
}

var survey = new Survey.Model(surveyJSON);
$("#surveyContainer").Survey({
    model: survey,
	onComplete: sendDataToServer
});

Gist for the article:
How to create online survey for free with SurveyJS and Google Sheets