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Mini Program Payment

Module Name Feature List Description
Guide Use Case Mini Program Payment Product introduction
Development Guide Mini Program Payment Development Guide
Public API Mini Program Calls Payment API for calling payment from mini program frontend
Order Placement The Merchant’s backend calls this API to create an advance transaction in the WeChat payment service backend
Query Order This API allows inquiry of all payment orders made from WeChat.
Refund Application The Merchant can refund the Payer via this API.
Query Single Refund After submitting a refund request, check the refund status by calling this API
Query All Refunds After submitting a refund request, check the refund status by calling this API
Downloading Reconciliation Merchants can download the transaction history via this API
Close Order This API needs to be called before a merchant wants to create a new order due to the Payer failing to pay for an order. The original order will be closed in order to avoid repeat payment.
Downloading Platform Certificate WeChat Pay will change the platform certificate from time to time due to certificate validity and for transaction security. WeChat Pay provides a range of APIs to help merchant backend system replace the certificate easily.
Payment Result Notification After completing a payment, the WeChat payment system will send the relevant payment result and user information to the Merchant.
Refund Notification After completing refund, the WeChat payment system will send the refund result to the Merchant.
Query Fund Settlement Details After a transaction has been closed, the merchant can query the details of both settled funds (sette_state is SETTLED) and unsettled funds (sette_state is UNSETTLE) by settlement date.

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