SDKs for Unreal Engine / General information

General information

The payment UI is based on the Pay Station product. The choice of available payment methods and other settings are available in Publisher Account in the Pay Station section.

The SDK supports the item purchase from the catalog in one click or via the shopping cart.

To test the purchase process, you can use test cards within the payment UI in sandbox mode. The sandbox mode only simulates the behavior of a payment method; no real money is involved. You don’t need to sign any agreements with Xsolla or pay any fees to use sandbox.

Notice
After the first real payment is made, a strict sandbox payment policy takes effect. Payments made in sandbox mode are available only to users who are specified in Publisher Account in the Company settings > Users section.

The method to open the payment UI depends on the platform for which your application is built:

  • For desktop applications, the SDK allows you to open the payment UI in the internal browser, depending on the project settings.
  • In mobile applications, the payment UI opens in an external browser.

If you open the payment UI in a WebView in your mobile application, add the icon, so the user can close the payment UI at any stage of the purchase. To do this, use the bShowCloseButton parameter on instances of the PurchaseParams class when calling the UXsollaStoreSubsystem::FetchPaymentToken or UXsollaStoreSubsystem::FetchCartPaymentToken SDK method.

Example of using the bShowCloseButton parameter in WebView:

How-tos

Learn about advanced setups from our how-tos.

How to set up user redirection to your application after payment

To redirect users to another page after they completed the payment, you can configure two types of redirects:

  • automatic — a redirect with a set delay.
  • manual — a redirect after a user closes the payment UI or clicks the redirect button.

You can configure a redirect in the following ways:

  • in Publisher Account — use this option if you are setting up a project for a single application and don’t plan to create builds for different platforms.

  • in the SDK settings — use this option if you plan to:
    • use the project for multiple applications
    • create builds for different platforms
    • sell in-game items via the website
Notice
If redirects are configured in Publisher Account and SDK settings, the parameters specified in the SDK settings are used.

Configure redirects in Publisher Account

  1. Open your project in Publisher Account.
  2. Click Pay Station in the side menu.
  3. Go to the Settings > Redirect policy section.
  1. In the Return URL field, enter the URL or path where a user is redirected to after making a payment.
Note
To redirect users to a mobile application, the URL must match one of the following schemes:

  1. To set automatic redirect parameters:
    1. In the drop-down list, choose Automatic redirect condition:
      • None — do not redirect.
      • Successful payment — redirect when a payment is successful.
      • Successful or canceled payment — redirect when a payment is successful or canceled.
      • Any payment — redirect for any payment status.
    2. In the Delay field, enter a redirect timeout in seconds. By default, a redirect is activated in 0 seconds.

  1. To set manual redirect parameters:
    1. In the drop-down list, choose Manual redirect condition:
      • None — do not redirect.
      • Successful payment — the redirect button appears when a payment is successful.
      • Successful or canceled payment — the redirect button appears when a payment is successful or canceled.
      • Any payment — the redirect button appears for any payment status.
    2. In the Redirect button caption field, enter the copy for the button that redirects a user to the return URL.
Notice

The redirect button copy is Back to the Game by default. It is localized in all Pay Station languages.

If your project supports several languages, you can specify redirect button copy for each of them in the respective fields.

When a user closes the payment UI, they are also redirected to the specified return URL.

  1. Click Save.

Configure redirects in SDK settings

  1. Open you Unreal Engine project.
  2. Go to the Settings > Project Settings > Plugins > Xsolla Settings > Redirect Policy section.
  3. Specify the redirect parameters:

    1. Uncheck the Use settings from Publisher Account box.
    2. In the Return URL field, enter a URL or a path a user will be redirected to after making a payment.
Note
To redirect users to a mobile application, the URL must match one of the following schemes:

    1. To set automatic redirect parameters:
      1. In the drop-down list, choose Redirect Conditions:
        • None — do not redirect.
        • Successful payment — redirect when a payment is successful.
        • Successful or canceled payment — redirect when a payment is successful or canceled.
        • Any payment — redirect for any payment status.
      2. In the Redirect Delay field, enter a redirect timeout in seconds.

    1. To set manual redirect parameters:
      1. In the drop-down list, choose Status for Manual Redirection:
        • None — do not redirect.
        • Successful payment — the redirect button appears when a payment is successful.
        • Successful or canceled payment — the redirect button appears when a payment is successful or canceled.
        • Any payment — the redirect button appears for any payment status.
      2. In the Redirect Button Caption field, enter the copy for the button that will redirect a user to the return URL.
Notice

The redirect button copy is Back to the Game by default. It is localized in all Pay Station languages.

If your project supports several languages, you can specify redirect button copy for each of them in the respective fields.

When a user closes the payment UI, they are also redirected to the specified return URL.

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How to set up payments via Steam

Xsolla can act as a payment gateway when players pay for in-game purchases via Steam. In this case, you don’t need to integrate the Steam SDK or take into account the nuances of paying via Steam when setting up an in-game store.

To set up payments via Steam:

  1. Sign an additional agreement with Xsolla.

Note
Xsolla takes a reduced Revenue share when making payments via Steam. Check the details with your Customer Success Manager.

  1. Set up the gateway for Steam in your Publisher Account.
  2. Go to your Unreal Engine project.
  3. Go to Settings > Project Settings > Plugins > Xsolla Settings and check the Build for Steam box.
  4. Set up native authentication via Steam.

After changing the Unreal Engine project settings, the x-steam-userid header will be added to the payment token request.

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Last updated: June 21, 2024

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