Handling WeChat Pay APIv3 Callback Notifications in ASP.NET Core
When procesisng WeChat Pay callback notifications in ASP.NET Core, two primary challenges arise: reading the request body and processing the encrypted payload. Instead of strictly following the official signature verification steps, a pragmatic approach involves decrypting the callback data directly to retrieve the order number and then validat ...
Posted on Fri, 07 Aug 2026 16:25:12 +0000 by jamesm87
WeChat Official Account QR Code Payment Integration
Implementing QR code payment functionality within a WeChat Official Account requires proper configuration of merchant credantials including merchant ID, API key, and calllback URLs in the payment platform dashboard.
The frontend component displays the generated QR code using HTML:
<div id="qrcode-container"></div>
<div ...
Posted on Tue, 26 May 2026 17:52:24 +0000 by nafetski
WeChat Small Merchant Direct Connection API Implementation
System Overview
The WeChat Small Merchant API enables merchants to register, check status, sign contracts, configure information, initiate payments via QR codes and mini-programs, manage orders, process refunds, and handle withdrawals.
Merchant Registration Process
Common Issues and Solutions
1. API Error Responses
Certificate Not Found: Ensur ...
Posted on Sat, 09 May 2026 20:57:31 +0000 by craigtb