Huifu (Adapay)

Updated: 7/26/26, 5:36:13 PM

Channel Overview

Adapay by Huifu, a direct aggregated payment channel covering WeChat, Alipay, and UnionPay with a single app ID. DaxPay integrates via Adapay API, supporting 16 payment methods.

Supported Payment Methods

• WeChat: QR, JSAPI (Official Account), APP, H5, Mini-program, Barcode
• Alipay: QR, JSAPI (Life), APP, H5, PC Web, Barcode
• UnionPay: QR, JSAPI, H5, Barcode

Configuration

Add this channel in the Admin panel under "Channel Management":

• Adapay App ID (app_id)
• API Key (Authorization header)
• Merchant RSA private key (PKCS#8 Base64, for request signing)
• Adapay platform public key (X509 Base64, for response verification)

Signature

SHA1withRSA (merchant RSA private key sign / Adapay platform public key verify, PKCS#8 Base64)

Callback Handling

• Async notification callback supported
• Callback URL must be configured in the Huifu (Adapay) merchant platform

Notes

• Dynamic QR (WeChat/UnionPay aggregated) uses qrPrePay path
• Configure callback URL in Adapay platform
• Private key is Base64 string (not PEM format)

Docs for AI Assistants

LLM-friendly document formats for ChatGPT, Claude, Cursor and other AI tools to read and understand DaxPay docs.

llms.txt — Site index, page list with summaries for quick lookup
llms-full.txt — Full docs merged, complete content in one file for bulk AI input