To track the status of created orders and validate them, you will need to configure webhooks processing on the server side of your application.

To switch to the new option with receiving combined webhooks, contact your Customer Success Managers or email to csm@xsolla.com.

For the full operation of the in-game store and payment management, it is necessary to implement the processing of the main webhooks:

• If you receive combined webhooks
• If you receive separate webhooks

Webhook name	Description
User validation > User validation (user_validation)	Is sent at different stages of the payment process to ensure the user is registered in the game.
Game services > Combined webhooks > Successful payment for order (order_paid)	It contains payment data, transaction details, and information about purchased items. Use the data from the webhook to add items to the user.
Game services > Combined webhooks > Order cancellation (order_canceled)	It contains data of the canceled payment, transaction details, and information about purchased items. Use the data from the webhook to remove the purchased items.

The scheme below shows the process of purchasing and returning items using combined webhooks.

Webhook name	Description
User validation > User validation (user_validation)	Is sent at different stages of the payment process to ensure the user is registered in the game.
Payments > Payment (payment)	It contains payment data and transaction details.
Game services > Separate webhooks > Successful payment for order (order_paid)	It contains information about purchased items and the transaction details. Use the data from the webhook to add items to the user.
Payments > Refund (refund)	It contains payment data and transaction details.
Game services > Separate webhooks > Order cancellation (order_canceled)	It contains information about the purchased items and the ID of the canceled transaction. Use the data from the webhook to remove the purchased items.

The scheme below shows the process of purchasing and returning items using separate webhooks.

If item catalog personalization is implemented on your application’s side, set up processing of Catalog personalization on the partner’s side.

For the full list of webhooks and general information about working with them, refer to the webhooks documentation.

PHP SDK

Use ready classes for processing webhooks

Set up webhooks sending

To configure webhooks on the Xsolla side:

1. Open your project in Publisher Account and go to the Payments > Webhooks section.
2. In the Webhook server field, specify the URL to which Xsolla will send webhooks.

3. Click Enable webhooks.

Add webhook listener

Webhook listener is program code that allows receiving incoming webhooks at a specified URL address, generating a signature, and sending a response to the Xsolla webhook server.

Generation of signature

When receiving a webhook, you should ensure the security of data transmission. To achieve this, a signature must be generated from the webhook data and verified that it matches the signature sent in the HTTP request header.

To generate a signature:

1. Concatenate the JSON from the request body and the project’s secret key.
2. Apply the SHA-1 cryptographic hash function to the string obtained in the first step.

Sending responses to webhook

To confirm receipt of the webhook, your server must return:

• 200, 201, or 204 HTTP code in case of a successful response.
• 400 HTTP-code with description of the problem if the specified user was not found or an invalid signature was passed.

Your webhook handler may also return a 5xx code in case of temporary issues on your server.

If the Xsolla server doesn’t receive a response to the Successful payment for order and Order cancellation webhooks or receives a response with a 5xx code, the webhooks are resent according to the following schedule:

• 2 attempts with a 5-minute interval
• 7 attempts with a 15-minute interval
• 10 attempts with a 60-minute interval

Maximum of 20 attempts to send webhooks are made within 12 hours from the first attempt.

If the Xsolla server doesn’t receive a response to Payment webhook or Refund webhook, or receives a response with a 5xx code, webhooks are also resent with an increased time interval. A maximum of 12 attempts are made within 12 hours.

If the Xsolla server doesn’t receive a response to the User validation webhook or receives a response with a code of 400 or 5xx, the User validation webhook is not resent.

In this case, an error is shown to the user and the Payment and Successful payment for order webhooks are not sent.

Configuring item information in webhooks

You can configure which item data is included in the Successful payment for order and Order cancellation webhooks via the items array.

Enabling additional parameter inclusion

Enable the inclusion of additional parameters that indicate:

• whether the item is free (is_free)
• whether the item is a bonus (is_bonus)
• whether the item is part of a bundle (is_bundle_content)

To receive these parameters, you must switch your webhooks to version 2 using the Update information about webhook settings API call. In version 1 (default), these parameters are not available.

Example of an items array with additional parameters:

 1
 2"items": [
 3      {
 4        "sku": "com.xsolla.item_new_1",
 5        "type": "bundle",
 6        "is_pre_order": false,
 7        "is_free": false,
 8        "is_bonus": false,
 9        "is_bundle_content": false,
10        "quantity": 1,
11        "amount": "1000",
12        "promotions": []
13      },
14      {
15        "sku": "com.xsolla.gold_1",
16        "type": "virtual_currency",
17        "is_pre_order": false,
18        "is_free": false,
19        "is_bonus": false,
20        "is_bundle_content": true,
21        "quantity": 1500,
22        "amount": "[null]",
23        "promotions": []
24      }
25 ],

Disabling bundle content inclusion

By default, webhooks include all items from the bundle as a list of individual items. You can configure the webhook to include only the bundle itself, without listing its contents.

In this case, the items included in the bundle are not included in the items array. In the array shown above, the item with the SKU com.xsolla.gold_1, which is part of the bundle, is excluded.

Example of the items array when bundle content is disabled:

 1
 2"items": [
 3      {
 4        "sku": "com.xsolla.item_new_1",
 5        "type": "bundle",
 6        "is_pre_order": false,
 7        "is_free": false,
 8        "is_bonus": false,
 9        "is_bundle_content": false,
10        "quantity": 1,
11        "amount": "1000",
12        "promotions": []
13      }
14 ],

To disable bundle content inclusion, contact your Customer Success Manager or email to csm@xsolla.com.

Overview

The Xsolla event API allows you to use the GetUpdates service to receive and handle payment information directly from your application client without using webhooks on your server. Use this integration option if you want to speed up and simplify your integration by eliminating the need to set up and maintain your own server to process payment webhooks.

Interaction between your game and Xsolla:

How to set it up

To receive events from Xsolla via API:

1. In your project Publisher Account, go to the Payments > Webhooks section.
2. Click Use API. Settings are saved automatically.

3. From the application client, send a request to https://getupdate.xsolla.com/events to get payment information. Refer to the API references for detailed information. In the response, you will receive payment data in the same format as the Payment webhook.
4. If the payment is successful, grant the purchase to the user.

API reference

Get unprocessed event list for user

1GET https://getupdate.xsolla.com/events

Security: Bearer User JWT token

Response sample:

 1{
 2  "events": [
 3   {
 4     "id": 49, // event_id
 5     "status": 0,
 6     "created_at": "2025-04-03T21:21:27Z",
 7     "data": {
 8       "notification_type": "payment",
 9       "purchase": {
10         "order": {
11           "id": 000000001,
12           "lineitems": [
13             {
14               "quantity": 1,
15               "sku": "skill"
16             }
17           ]
18         }
19       },
20       ...
21     }
22   }
23 ]
24}

Mark event as processed

1POST https://getupdate.xsolla.com/events/<event_id>/processed

event_id is the events.id parameter obtained from the response to the Get unprocessed event list for user API call.

Security: Bearer User JWT token