Instead of periodic polling of payment detail endpoint to check the state of payment or order, client can also use webhooks. By consuming webhook events, client gets immediate notification when the state of an entity changes.
Furthermore, Everifin Paygate can call hook endpoint to retrieve the current state of payment entity in client’s system. This can prevent executing of payment in Everifin Paygate, when the payment in client’s infrastructure is withdrawn by client at that moment.
Additionally, webhooks can be used to get notifications when bank transfer related to initiated payment appears on the client’s bank account. This works regardless of the actual payment means (i.e. the actual payment does not need to be executed via Everifin Paygate). More details can be found here: