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U.S. Bank Europe DAC. Registered in Ireland – Number 418442..  Registered Office: Block F1, Cherrywood Business Park, Dublin 18, D18 W2X7, Ireland.
U.S. Bank Europe DAC, trading as Elavon Merchant Services, is regulated by the Central Bank of Ireland.
 
U.S. Bank Europe DAC. Registered in Ireland with Companies Registration Office. The liability of the member is limited. United Kingdom branch registered in England and Wales under the number BR022122.
U.S. Bank Europe DAC, trading as Elavon Merchant Services, is a credit institution authorised and regulated by the Central Bank of Ireland.  Authorised by the Prudential Regulation Authority.  Subject to regulation by the Financial Conduct Authority and limited regulation by the Prudential Regulation Authority.  Details about the extent of our regulation by the Prudential Regulation Authority are available from us on request.

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You can use the Web SDK demo application to understand how the Web SDK communicates with the 3DS Server through different API requests and responses. It shows the internal communication that happens when a merchant website sends a request to the 3DS Server to process a transaction and the further steps in the transaction authentication process. You can review the request and response body to review the information sent and received by the Web SDK.

The Web SDK demo application is interactive and easy to use. Each page on the demo application provides a high-level overview of the method selected for the demo. Go ahead and add or edit the field values to simulate different authentication (frictionless and challenge) and error scenarios.

## Prerequisite 
Install Node.js and npm on the computer where you want to install and run the demo application.

## Installing the Web SDK demo application 
You can install the demo application on any computer.
1. Download the :download-link[Web SDK Demo Application .zip file]{id="/content/dam/developer-portal-solutions/en-us/elavon/media/files/products/3dsecure2/elavon-3ds-websdk-demoapp-142.zip"} 
 
:::::notice{note}

We often update the demo application to bring parity with the features that are available in the 3DS Web SDK. We suggest that you bookmark this page and download the latest ZIP file whenever you want to test a new feature available in the Web SDK.
 
:::::


2. Extract the .zip file into a directory.

3. In a command-line interface, cd into the directory where you unzipped the file.

4. Run the following command: `npm install && npm run start`

5. To view the Web SDK demo application, open <https://localhost:3000>.

 For best performance, use either Chrome or Firefox browsers to run the demo application.

:::::notice{important}

 Do not use any production card data or other details in the demo application.
:::::


## Using the demo application 
The Web SDK demo application is interactive and easy to use. Each page on the demo application also describes the method and the background information related to the method.

1. Set the authentication credentials before you start interacting with the Web SDK demo application.

 - **Base URL:** <https://uat.gw.fraud.eu.elavonaws.com/3ds2>

 - To authenticate, you can use one of the following options:

 - **Basic Auth:** The **Merchant Alias** and **Secret Key** field values are auto-populated in the demo app.

 - **JWT Auth:** You must first send a request to the 3DS Server to retrieve the JWT token and then use the token field value in the JWT token field. Note that the token expires in 10 minutes. View :magic-link[authentication]{id="authentication"} for more details

 - **Sandbox URL:** GET <https://uat.gw.fraud.eu.elavonaws.com/token>

 - **Username:** demoUser

 - **Password:** d2da67e1-b9e3-4edf-9bea-b8a850e42fec

 These credentials are only for the demo app and will not work in a production environment. If you have test credentials available, you can also use them for either of the authentication methods.

 
:::::notice{note}

 The Basic Auth method is available only in the demo app for ease of authentication. The Web SDK supports only the JWT authentication.
 
:::::


2. The All-in-one workflow of the Web SDK can handle the complete 3D Secure check by itself. To use this workflow, select **SDK Methods** > **All**. For sample requests and responses, refer to the :magic-link[Using the all-in-one workflow]{id="websdk-use-allinone"} page.

 1. Enter values in the request parameters.

 2. After you fill in the parameters, the Web SDK automatically creates a request body.

 - In the demo app, you can simulate different scenarios using a specific `acctNumber` or a `purchaseAmount`. However, you must still enter data in all required fields. For test card numbers, refer to the 3DS 2 Test Cards section on the :magic-link[Test your integration]{id="test-information"} page. 

 3. Validate the request body and click **Test API Call**.

 - The Web SDK sends the request to the 3DS Server who sends it to an ACS simulator (issuer) for the demo. The simulator (issuer) validates the request body and returns the response.

 4. (Optional) Validate the response body.

 5. To test another authentication scenario, repeat substeps 1 through 3.

3. To test individual API methods, we recommend that you run them in the following order: Lookup, Device Fingerprint, Authenticate, and Challenge (if required). Review the following points before you test these methods:

 - If you don't want to check the 3D Secure version the card supports, you can skip the `lookup()` method (optional). If you skip the `lookup()` method, you cannot call the `deviceFingerprint()` method too because the request parameters depend on some response parameters of the `lookup()` method.

 - `deviceFingerprint()` is also an optional method. In a production environment, the device data fetched through this method provides additional contextual information to the issuer, which increases the chances of a frictionless authentication.

 - The request parameters of the `challenge()` method depend on the response of the `authenticate()` method. Therefore, you must run the `authenticate()` method before the `challenge()` method. For example, if the `issueChallenge` field is returned as `true` in the authenticate response, you must run the `challenge()` method. In a production environment, the issuer decides the type and number of challenges displayed to the cardholder. However, in the demo app, Elavon provides simulated challenge pages for 3DS 1 and 3DS 2 that you can use to test different challenge responses.

 For sample requests and responses of these API methods, see the :magic-link[Using the toolkit workflow]{id="websdk-use-toolkit"} page.

:::::notice{note}

 Merchants who operate in the travel industry can send additional travel-related data in the `messageExtension` object of the `/authenticate` request. For a sample of the `messageExtension` object and field details, see message extension elements for the travel industry
:::::


## What's new in this version of the Web SDK demo application 

**Demo application version:** 142

First version available for download from the developer portal. This version is at par with the Web SDK version 1.2.0 available in production for download.

Web SDK Demo Application

Alliance Offers

Data as a Service

Invitation to Apply

Accounts

Bank Holidays

Card Activation

Card Controls

Challenge-Widget

Commercial Credit Cards

Commercial Statements

Credit Card Account Details

Credit Card Accounts Overview

Credit Card Alerts

Credit Card Application Status

Credit Card APRs

Credit Card Balance Transfers

Credit Card Disputes

Credit Card Payments

Credit Card Qualified Offers

Credit Card Statements

Credit Card Transactions

Data Sharing for Marketing Purposes

Digital Wallets

Make a Payment - Coming Soon

Rewards Accelerator

Rewards Automatic Redemption

Rewards: Balance Summary

Rewards: Dashboard

Rewards Redemption Accounts

Rewards Redemptions

Rewards Transactions: Earned and Redeemed

Travel Notifications

User Profile

3DSecure2

Avvance

CheckoutJs

Commerce SDK

Converge

Disputes Management

Dynamic Currency Conversion

eBoarding

Elavon Cloud Payments Interface

Elavon Payment Gateway

Fusebox

Hosted Payment Page

In Person Payments on Opayo

Leads

Lightbox payment modal

Online Payments on Opayo

Opayo

Opayo Direct

Opayo Forms

Opayo Reporting API

Opayo Server

Opayo Shared API

Payment Method Gateway

Payments Core 365

Simplify

viaconex

XML API

Card as a Service API

Core Banking API

Money Movement API

Reference API

Access Online Transactions

Account Transfers

Account Validation

ACH Originations

Bank Information

Card as a Service

Check Payables

Corporate Account Information

Corporate Account Information 3LO

Corporate Credit Cards

Corporate Onboarding

Corporate Statements

Custody

Data Toolbox

Data Toolbox - Accounts

Data Toolbox - Documents

Data Toolbox - Transactions

Debit Card Phone Number Lookup

Disbursements via Zelle®

U.S. Bank Flexible Capital Platform

Freight Payment Customer Profiles

Freight Payment Transactions

Incoming Webhooks

Instant Payments

Investment Accounting

PaySmart

Payee Choice

Payee Token+

Personal Loans

Positive Pay

Push to Card

Receivables

RTP® - Real-Time Payments

Tokenized Payments

Treasury Builder

U.S. Bank FBO Account

Virtual Account Reporting

Virtual Card Payments

Voyager Accounts

Voyager Cards

Voyager Drivers

Voyager Transactions

Voyager Vehicles

Wire Transfers

EMV 3D Secure Overview

Fraud scoring

Integration guide

API reference

Getting Started

Authentication

Integration options

Integration options overivew

Direct integration to 3DS server

Direct integration - Sample Request and Response

Integrate using the Web SDK

Web SDK Overview

Using the All-in-one Workflow of the Web SDK

Using the Toolkit Workflow of the Web SDK

Other Features

3D Secure 2 for merchants not processing with Elavon

Merchant-initiated (3RI) transactions 

Merchant-initiated (3RI) transactions overview

3RI - Sample Request and Response

Travel industry message extension

Test your integration

API Reference

Error Codes and suggested resolution

Common Error Scenarios

HTTP response status codes

Release notes

Appendices

Product Security and Best Practices

UI Mockups

3D Secure 2 Concepts

3D Secure 2 Glossary