Suixingfu
Channel Overview
Suixingfu (随行付) is an aggregated payment channel. DaxPay integrates the Tianque API in ISV mode (product vbill_pay), covering unified orders, QR codes, barcodes, and mini-program cashier scenarios. It is the only extended channel that supports the mini-program cashier (wechat_cashier) method.
Suixingfu is a commercial-edition extended channel; after purchasing the flagship edition the official team assists with onboarding and integration. See the channel overview.
Supported Payment Methods
| Underlying rail | Supported methods |
|---|---|
| Barcode, QR code, JSAPI (Official Account), mini-program, mini-program cashier | |
| Alipay | Barcode, QR code, JSAPI |
| UnionPay (QuickPass) | Barcode, QR code, JSAPI |
WeChat JSAPI and mini-program payments require a bound WeChat app (AppId) in the channel configuration.
Configuration Structure
Suixingfu keys are a product-level global configuration; the channel merchant only registers the Tianque merchant number:
- Configure the ISV keys (Suixingfu product → Key Configuration, one global set):
| Group | Field | Notes |
|---|---|---|
| Basic | Tianque institution ID | Cooperation institution identifier assigned by Suixingfu |
| Keys | Tianque RSA public key | Base64 (X509), for verification |
| Merchant RSA private key | Base64 (PKCS#8), for signing |
- Create the channel merchant: Merchant Workbench → Channel Merchants → Create, pick the Suixingfu product and fill in merchant name + Tianque merchant number (obtained after onboarding).
Signature & Callback
- Request signing: SHA1withRSA — merchant private key signs, Tianque public key verifies;
- Keys are Base64 strings (not PEM format) from the Tianque open platform;
- Async notifications are verified and matched back to orders by order number.
Notes
- Switch the environment before creating merchants: one set per environment;
- Ensure the server egress IP is whitelisted by Suixingfu.