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Webhooks are HTTP callbacks that notify you of all events you subscribed for on an entity.
Events can be payments, state changes to payments or transactions connected to a payment (e.g. a chargeback).
|Delay||Near real-time. What does near real-time mean?|
|Request timeout||If we don't receive a response within 30 seconds, the message is considered timed out. It will then be scheduled for retry.|
|Retries||In case of a failed delivery we store a failed notification for a limited period of time and try sending it again later.
Retries are sent at increasing time intervals until either the message is accepted or the maximum retry period of 5 days has been exceeded. After this time the transaction still can be looked up via the reporting endpoints or the BIP.
|Beyond the retry period||If your server for receiving notifications does not accept one or more messages for more than five days then the webhook will be deactivated. Even if a single message is not accepted, that single message will be retried for 5 days and then the webhook will be deactivated, even though other messages were being accepted.
The notifications that were queuing up for the last five days will be deleted by the deactivation. You still can get these contents by using the other reporting tools of the platform.
The webhooks can be reactivated once you're back up, see configuration section.
|Guarantee on message order||There is no guarantee on the order of messages. If you first send request A and then request B, you might retrieve a notification first on B then on A, especially if...
|Required Client server power||Please make sure that your server for receiving notifications is able to properly receive the peak-loads that can be caused by the transaction processing on entities you're listening to.
Example: If there is a transaction processing peak of 30 transactions/second then you would receive around 30 notifications/second on your webhook URL as well. We recommend asynchronous processing and a receiver cache for scenarios like this.