Remote Start

In the Remote Start Flow, your remote server initiates the transaction, directing Nayax to activate a specific device. This method is particularly suited for scenarios where the transaction begins from an application or a computer, rather than directly at the Nayax terminal.

The Remote Start flows use the following Spark methods:

• StartAuthentication
• TriggerTransaction
• TransactionCallback
• Settlement
• CancelTransaction
• TimeoutCallback
• DeclineCallback

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Payment Flows

Remote Start supports both pre-authorization and pre-selection transaction flows. The sections below provide a more detailed breakdown of each flow..

Pre-Authorization Flow

To understand the device start pre-authorization flow, see the diagram below:

Below is a breakdown of the diagram:

1. A consumer starts a session on a service station, which sends a StartAuthentication request to the Nayax Server via a 3rd Party Server.
2. The Nayax Server responds to the 3rd Party Server with a StartAuthenticationResponse.
3. The 3rd Party Server sends a TriggerTransaction request to the Nayax Server.
4. The Nayax Server sends a "Wake Up" command to the Nayax Device.
5. The Nayax Device responds to the Nayax Server, confirming it has woken up.
6. The Nayax Server sends a TriggerTransactionResponse back to the 3rd Party Server.
7. The consumer presents their card to the Nayax Device. The Nayax Device then sends an AuthorizationRequest to the Nayax Server.
8. The Nayax Server performs authorization with a Payment Provider and sends a TransactionCallback to the 3rd Party Server.
9. The 3rd Party Server acknowledges the transaction callback by sending a TransactionCallbackACK (HTTP 200) to the Nayax Server. At this point, the service can be provided on the Service Station.
10. The Nayax Server sends an AuthorizationResponse to the Nayax Device, indicating the outcome of the authorization. The Nayax Device then returns to an idle state.
11. The 3rd Party Server sends a Settlement request to the Nayax Server.
12. The Nayax Server performs the settlement with the Payment Provider and sends a SettlementResponse back to the 3rd Party Server.

Pre-Selection Flow

To understand the device start pre-selection flow, see the diagram below:

Below is a breakdown of the diagram:

1. A consumer starts a session on a service station, which sends a StartAuthentication request to the Nayax Server via a 3rd Party Server.
2. The Nayax Server responds to the 3rd Party Server with a StartAuthentication Response.
3. The 3rd Party Server sends a TriggerTransaction request to the Nayax Server.
4. The Nayax Server sends a "Wake Up" command to the Nayax Device.
5. The Nayax Device responds to the Nayax Server, confirming it has woken up.
6. The Nayax Server sends a TriggerTransaction response back to the 3rd Party Server.
7. The consumer presents their card to the Nayax Device. The Nayax Device then sends an AuthorizationRequest to the Nayax Server.
8. The Nayax Server processes transactions by performing sales, authorizations, and settlements with a Payment Provider. Concurrently, it sends a TransactionCallback to the 3rd Party Server.
9. The 3rd Party Server acknowledges the transaction callback by sending a TransactionCallback (HTTP 200) to the Nayax Server. At this point, the service can be provided at the Service Station.
10. The Nayax Server sends an AuthorizationResponse to the Nayax Device, indicating the outcome of the authorization. The Nayax Device then returns to an idle state.

See Also