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1. Prepare for verification

Prepare for credit card verification integration.

Add the i'mport library to the target page.

Credit card identity verification is supported in i'mport JavaScript v1.1.7 or later versions.
HTML
client-side
<!-- jQuery -->
<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.4.min.js" ></script>
<!-- iamport.payment.js -->
<script type="text/javascript" src="https://cdn.iamport.kr/js/iamport.payment-{SDK-latest version}.js"></script>
You must install jQuery 1.0 or later version.

Initialize the IMP object using the Merchant ID on the identity verification page.

JavaScript
client-side
var IMP = window.IMP; // Can be omitted
IMP.init("{Merchant ID}"); // Example: imp00000000