Add an AWS-Lambda contact form to the "Agency" theme for Hugo (gohugo.io)

contact-lambda.js

// Follow the instructions at https://www.codeengine.com/articles/process-form-aws-api-gateway-lambda/
// Including adding the custom javascript from that article (plus this file)
//
// In config.toml set     postURL = "/rest/contact/"

// Support serialising the contact form as JSON to send to AWS Lambda
jQuery(document).ready(function ($) {
    $('form[id=contactForm]').off('submit').on('submit', function (e) {
        e.preventDefault();
        var formJSON = $(this).formToJson({pretty: true, delimiter: '.'});
        console.log("Processing contact form: " + formJSON);

	$.ajax({
	    url: "/rest/contact/",
	    type: "POST",
	    contentType: "application/json; charset=utf-8",
	    dataType: "json",
	    data: formJSON,
	    cache: false,
	    success: function (response) {
		console.log("Form success: "+response);
		if (response.errorMessage) {
		    this.error(response.errorMessage);
		    return;
		}
		// process success message
		$('form[id=contactForm] #success').hide();
		$('form[id=contactForm] #error').hide();
		$('form[id=contactForm] #success').show();

	    },
	    error: function (msg) {
		console.log("Form error: "+response);
		// process errors
		$('form[id=contactForm] #success').hide();
		$('form[id=contactForm] #error').hide();
		$('form[id=contactForm] #error').show();

	    }
	});
    });
});