How to use WeChat Alipay to pay for web pages embedded in third-party apps and funds flow to the developer's own account?

Solution to implement WeChat Alipay payment in embedded web pages of third-party apps and funds flow to developer accounts

Many developers face the problem of how to integrate WeChat and Alipay payments in third-party app embedded web pages and ensure that funds enter their merchant accounts directly. This article provides a solution based on bank integration interface.

Problem background: The developer uses a bank integration interface, but this interface does not support H5 payment. Directly using the WeChat/Alipay H5 payment interface has problems such as integration difficulties and complex reconciliation.

Core strategy: Avoid using the WeChat/Alipay H5 payment interface directly on the web side , but instead utilize the native payment capabilities of third-party apps.

Specific implementation steps:

1. The native payment SDK is integrated on the App side: the native SDK of WeChat Pay and Alipay Payment is integrated in third-party apps respectively. This requires reference to the official SDK documentation for development.

2. The web page sends a payment request to the App: When the user clicks the payment button on the web page, the web page does not directly call the payment interface, but sends a payment request containing order information to the App. This can be achieved through JavaScript bridging technology or other App-web communication mechanisms.

3. The App side processes the payment request and executes the payment: After the App side receives the payment request, it uses the integrated native SDK to call the corresponding payment interface based on the order information to complete the payment process.

4. Payment result feedback: After the payment is completed, the App side will feedback the payment result to the web page side to update the order status.

The key to this solution is to transfer payment logic from the web side to the App side, cleverly combining the App native payment SDK and bank integration interface to ensure that funds flow safely to the developer account and avoid the complexity of integrating H5 payment and bank interface. This method fully utilizes the advantages of the native interface of the App side and works in coordination with the bank interface.

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