Fuyou
Channel Overview
An aggregated payment channel by Shanghai Fuyou Payment, supporting WeChat, Alipay, UnionPay QR and barcode. DaxPay integrates via Fuyou unified API.
Supported Payment Methods
- WeChat QR (merchant scan): Customer scans merchant QR code
- WeChat JSAPI (Official Account): Invoke payment within WeChat
- WeChat Mini-program: Invoke payment within mini-program
- Alipay QR (merchant scan): Customer scans merchant QR code
- Alipay JSAPI: Invoke payment within Alipay
- UnionPay QR (merchant scan): UnionPay scan to pay
- Barcode (merchant scan): Merchant scans customer code, synchronous result
Configuration
Add this channel in the Admin panel under "Channel Management":
- Institution ID (ins_cd)
- Merchant No (mchnt_cd, sub-merchant level)
- Terminal No (term_id)
- Merchant RSA private key (Base64, PKCS#8)
- Fuyou RSA public key (Base64, X509, for verification)
- Order prefix (for callback order lookup)
Signature
MD5withRSA (merchant RSA private key sign / Fuyou RSA public key verify, Base64)
Callback Handling
- Async notification callback supported
- Callback URL must be configured in the Fuyou merchant platform
Notes
- Some payment methods require separate agreements
- Ensure server IP is whitelisted
- Callback uses order prefix to locate platform order