IOS micro-Credit Payment interaction graph Analysis _ios

Micro-Credit Payment interaction diagram (i)

Micro-Credit Payment interaction Diagram (ii)

With their own understanding of the description: (constantly updated ... ）

Micro-Letter Payment Flow chart:

1, the completion of payment is mainly composed of three parties:
User, Merchant's app client, merchant's backstage system, micro-letter client, micro-letter payment system;

2, the user log in to the merchant's app, the merchant's app selects the commodity to order, then sends the payment request through the Merchant app to the merchant's backstage system;

3, the merchant's backstage system receives the user's payment request to invoke the micro-letter the unified next single API, this time the micro-letter payment system receives the request to generate the Advance Payment information (PREPAY_ID) to return to the merchant backstage system, the merchant backstage system receives to generate the signed client to pay the information, The information (prepay_id,sign, etc.) is returned to the Merchant app client, and the user confirms payment after seeing it;

4, the user confirmed payment parameters through the SDK call micro-letter into the micro-letter payment interface to initiate payment request, micro-credit payment system to verify payment parameters, App payment permissions, and then return to the micro-credit client can pay the authorization, then the user can be paid through the micro-letter, input password and other operations;

5, the user in the micro-letter client after the operation of the password, confirm the submission of payment authorization to send information to the micro-credit payment system, micro-credit payment system certification authorized to complete payment transactions, return payment results, send micro-letter information tips;

6, micro-credit payment after the micro-credit payment system will return to the Merchant backend system payment results, the merchant backstage receive and save payment notice and return to the micro-credit payment system has received processing.

7, the Merchant payment system will pay the processing of payment status information returned to the Merchant app, showing the payment results, if the payment is successful, notify the merchant shipping handling.

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