JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://raw.githubusercontent.com/jakerella/jquery-mockjax/master/dist/jquery.mockjax.min.js"></script>
<div id="resultado"></div>

JavaScript

$(document).ready(function () {
    $.mockjax({
        url: '/url/servico',
        dataType: 'json',
        response: function (settings) {
            this.responseText = {
                umaPropriedade: 'random ' + Math.random(),
                outraProp: 'Valor'
            };
        }
    });
    
    $.post('/url/servico', function(data) {
        $("#resultado").text(data.umaPropriedade);
    });
});