User Experience of CsB API

Payment Flow Sequence Diagram

• The buyer browse the merchant website and choose Wechat Pay to pay for one order.
• The merchant website create the order in KsherWechatPay by calling a WebService API
• The WebService API returns one QR Code image
• The Merchant Website displays the QR code image
• The buyer open the Wechat App on his(her) mobile
• The buyer scan the QR code displayed on computer screen using Wechat App.
• The buyer confirms the payment by entering PIN or using his(her) finger print.
• The merchant website can get the payment result either by listening to WebService callback from KsherWechatPay, or
• Query the payment result from KsherWechatPay via one WebService API periodically.