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Auto-debit API


Module Name Feature List Description
Guide Parameter Specifications Customs Declaration Parameter Specifications
API Rules Customs Declaration API Rules
Public API Mini Program Signing The merchant can request this interface to call the signing page of mini program Auto-debit.
H5 Signing The merchant backend obtains a signing url by requesting this interface, and then requests the signing url on the h5 page to redirect to WeChat to complete signing.
JSAPI Signing The merchant backend obtains a signing url by requesting this interface, and then requests the signing url on the h5 page open inside of WeChat.
PC WEB Signing The merchant backend obtains a signing url by requesting this interface, then generate a QR code based on the signing url and display it on PC Websites for consumers to scan. Consumers could scan the QR code either through WeChat or third party APPs or browsers.
APP Signing The merchant backend obtains a signing session ID by requesting this interface, and then calls the signing SDK to redirect to WeChat signing page.
Querying Signing Status(By contract_id) The signing relationship query interface provides the single transaction signing relationship query
Querying Signing Status(By out_contract_code) The signing relationship query interface provides the single transaction signing relationship query
Applying for Termination API When the signing relationship between the merchant and the user is wrong or the merchant actively requests terminating the contract previously signed with the user, this interface can be called to terminate the contract.
Signing and Termination Result Callback When the contract is signed or terminated successfully (no notification is sent if it fails), WeChat will asynchronously notify the merchant of the relevant contract signing and termination information.
Deduction The deduction request implements deduction according to the priority payment method recorded in the signed contract. If the deduction fails, the other payment methods of the user will be polled in turn.
Deduction Result Notification After the deduction, WeChat will send the relevant payment result and user information to the merchant in the form of data stream.
Order Query The interface provides the query function of all WeChat Pay orders. Merchants can actively query the order status through the order query interface to complete the business logic of next step.
Order Reversing If payment for the merchant’s order fails and a new order ID needs to be generated to initiate payment again, the order closing interface needs to be called for the original order No. to avoid repeated payment;
Refund Application When a refund is needed due to the buyer or seller within a period after the transaction, the seller can return the payment to the buyer through the Refund 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.


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