API for In-Store Channels(via Merchant POS/Terminal)
Support WeChat Pay, Alipay, UnionPay with Active mode and Passive mode
✅ 场景介绍 SCENE INTRODUCTION
1️ 使用场景一(用户扫商家的收款二维码)
SCENE ONE(Customer Scan the QR code)
- 在 POS 机上点击收款,选择 OTTPAY 服务 
Press pay button on POS and choose OTTPAY channel

- 生成付款二维码 
Generate order QR Code

- 手机扫码完成付款 
Customer Scan QR Code with their payment App to pay

2️ 使用场景二(商家使用扫码设备扫描用户的付款二维码)
SCENE TWO(Merchant use scanner to Scan the customers’ QR code)
*️ 打开微信/支付宝客户端付款码,使用扫码枪扫码
Customer show their payment QR Code in their apps and merchant use a scanner to scan the QR Code

*️ 调用 OTTPAY 接口完成收款
Call OTTPAY API to finish payment

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