These utilities are helper functions to get 3DS 2.0 integrated on to your webpage.
3DS 2.0 Back-end integration with Adyen: https://docs.adyen.com/classic-integration/3d-secure-2-classic-integration/browser-based-integration/
import collectBrowserInfo from "./browser";
import base64Url from "./base64url";
import createIframe from "./iframe";
import createForm from "./form";
import config from "./config.js";Install the development dependencies:
npm install
Build the file:
npm run build
Embed it on your page:
<script type="text/javascript" src="YOUR_PATH/threeds2-js-utils.js">
Functionality can then be accessed via:
window.ThreedDS2Utilse.g.
window.ThreedDS2Utils.getBrowserInfo()N.B. The following code snippets are based on installation via Approach 1:
Collects available frontend browser info and store it in the properties dictated by EMVCo specification. EMV® 3-D Secure Protocol and Core Functions Specification
/**
* @function collectBrowserInfo
* @returns {Object} - browserInfo an object containing the retrieved browser properties
*/
const browserInfo = collectBrowserInfo();This returns an object with the following keys:
{
screenWidth,
screenHeight,
colorDepth,
userAgent,
timeZoneOffset,
language,
javaEnabled,
acceptHeader
}base64Url.encodereturns a base64URL encoded string
base64Url.decodereturns a base64URL decoded string
/**
* @function base64Url
* @param { String } - string to be encoded/decoded
* @returns {String} - a regular string
*/
const base64URLencodedString = base64Url.encode('STRING');
const base64URLdecodedString = base64Url.decode('ENCODED_STRING')Creates an iframe of specified size element with an onload listener and adds the iframe to the passed container element
/**
* @function createIframe
* @param container {HTMLElement} - the container to place the iframe into, defaults to document body
* @param name {String} - the name for the iframe element
* @param width {String} - the width of the iframe, defaults to 0
* @param height {String} - the height of the iframe, defaults to 0
* @param callback { Function } - optional, the callback to fire after the iframe loads content
*
* @returns {Element} - Created iframe element
*/
const iframe = createIframe(
container,
'IFRAME_NAME',
'400',
'600'
);Creates a form element with a target attribute
/**
* @function createForm
* @param name {String} - the name of the form element
* @param action {String} - the action for the form element
* @param target {String} - the target for the form element (specifies where the submitted result will open i.e. an iframe)
* @param inputName {String} - the name of the input element holding the base64Url encoded JSON
* @param inputValue {String} - the base64Url encoded JSON
*
* @returns {Element} - Created form element
*/
const form = createForm(
'FORM_ELEMENT NAME',
"FORM_ACTION",
"TARGET_NAME",
"INPUT_ELEMENT_NAME",
"DATA_TO_POST");config.validateChallengeWindowSizeensures that the passed string is one of values that the ACS expects, else returns '01'
config.getChallengeWindowSizereturns an array of pixel values based on the validated challenge window size e.g. ['250px', '400px']
/**
* @function config.validateChallengeWindowSize
* @param sizeStr - a size string to confirm as valid
* @returns {String} - a valid size string
*/
const validWindowSize = config.validateChallengeWindowSize('STRING');/**
* @function config.getChallengeWindowSize
* @param sizeStr - a size string to confirm as valid
* @returns {array} - an array of values [WIDTH, HEIGHT]
*/
const windowSizesArray = config.getChallengeWindowSize('STRING');3DS 2.0 Helper Functions Implementation
You can open tickets for any issues with the helper functions. In case of specific problems with your account or generic 3DS 2.0 issues and questions, please contact [email protected].
MIT license. For more information, see the LICENSE file.
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