JSFiddle - React, Tailwind, and code Playground

HTML

<input id=ip></input>

JavaScript

$(document).ready(function () {
    $.ajax({
        type: "GET",
        url: 'http://ip-api.com/json',
        dataType: "json",
        success: function(data) {
            ip.value = data.query;
        }
    });
});