How to call a configurable external JS URL in magento2

How to call a configurable external JS URL in magento2

Today I will explain in this article, that how you can create a configurable JS external URL and then map it with another js in magento 2. Suppose you stuck in a condition, i.e. you have to call only one JS with some conditions, like if mode is production then ABC.js should call and if mode is desug then XYZ.js should call , so this blog will be very helpful for you. So lets get started. At first you will need to call a template file on your page, i.e. test.phtml. In this file write the configurable JS url, for e.g. :

<?php if ($mode == "production") {
    $url = "https://abc.production/payment.js";
  
} else {
    $url = "https://abc.sandbox/payment.js";
} ?>
// $url :- You can use any external js url
<script>
   require.config({
       map: {
           '*': {
               'customjs':  '<?= $url ?>'
           }
       }
   });
</script>

Whenever test.phtml is executed, the above code will make an entry to requirejs-config.js  file. Now how do you call this in your other JS files? You have to add the below code after the above code in the same file to call another js.

<script type="text/x-magento-init">
    {
        "*": {
             "newcustomjs":{}
        }
    }
</script>

So let’s have a look below in your other newcustomjs.js file.

/*browser:true*/
/*global define*/
define(
    [
        'ko',
        'jquery',
        'Magento_Checkout/js/view/payment/default',
        'Magento_Checkout/js/model/quote',
        'customjs' // here the js file is mapped
    ],
    function (
        ko,
        $,
        Component,
        quote,
        custom // you can refer this object to use customjs functions
    ) {
        'use strict';
        
        ...........
        // and you can call your customjs functions easily
        .........
});

Now when newcustomjs.js is called then only your customjs file is invoked. Hope this blog will help you to build applications in your module in a better way. Try this and if you have any queries then just comment below 🙂