两阶段交易

SHVA 支付服务的两阶段交易流程将单笔交易分为两个不同的步骤：

此流程常用于实现忠诚度机制的客户端，因为它允许在两个阶段之间进行用户交互，例如取消或更改交易金额。

交易流程

要理解两阶段交易流程，请参考以下事件顺序：

以下是每个步骤的详细说明：

The client application (labeled as DC) initiates the first phase of the transaction by sending a doTransactionPhase1 request to the Nayax Device.
Nayax 设备通过插入、展示或刷卡的方式提示持卡人出示其卡片。
The Nayax Device responds to the DC with a doTransactionPhase1 response, which contains the card and transaction properties.
After any necessary user interaction (e.g., changes or cancellations), the DC sends a doTransactionPhase2 request to the Nayax Device to complete the transaction.
Nayax 设备向支付服务器发送授权请求。
支付服务器处理该请求，并将授权响应发送回 Nayax 设备，Nayax 设备随后将该授权响应转发给 DC。
At the end of the day, the DC sends a doPeriodic request to the Nayax Device, which communicates with the payment server to complete the day’s batch process. The Nayax Device then sends a doPeriodic response back to the DC.