Customer Presented QRC


API Endpoints Mentioned in this Guide

Customer-Presented QR Code Payment Scenario: In-Store User Workflows and API Interactions

This scenario outlines the steps involved in a customer-presented QR Code payment process, typically occurring in an in-store retail setting with a Point-of-Sale (POS) system.

  1. Transaction Initiation:

    • A customer approaches the checkout with their selected items. The POS manager prepares an itemized bill for these items.
  2. Payment Method Selection:

    • When asked for the preferred payment method, the customer opts to pay via a digital wallet. The POS manager selects the 'Digital Wallet' option on the POS system.
  3. API Call for Transaction ID:

    • The POS system initiates a call to Pockyt’s "/add" API to generate a transaction ID.
    • POST
    • The system then analyzes the response to retrieve and store the transaction number.
  4. QR Code Presentation and Scanning:

    • The customer presents their digital wallet’s QR code for the POS manager to scan.
  5. Processing the Payment:

  6. Polling for Transaction Status:

    • The POS system continuously checks the transaction status using the “/tran-query” API.
    • POST
    • Meanwhile, the customer is prompted on the POS interface to confirm the transaction.
  7. Payment Confirmation and Notification:

    • After the customer confirms, the digital wallet server completes the payment and informs Pockyt.
    • Pockyt then updates the POS system with the transaction status.


      See the Guide to Handling Payment Notifications Here:

  8. Completion and Receipt Generation:

    • A 'success' message is displayed to the customer, and the POS system generates a receipt documenting the transaction details.

This workflow demonstrates the seamless integration of Pockyt's APIs in an in-store retail environment, enabling efficient and secure digital wallet transactions.

User Workflows and API Interactions

Imagine an in-store retail environment that features a customer checkout Point-of-Sale (POS) system.

  • A customer approaches the POS manager who drafts an itemized bill for the ‘outgoing merchandise’.
  • Upon inquiry, the consumer reveals that they would like to pay using a digital wallet. The POS manager selects ‘Digital Wallet’ which prompts the Point-of-Sale to call the "/add” API for the creation of a transaction ID.


curl -XPOST -d '{  
    "merchantNo": "200043",  
    "storeNo": "300014",  
    "verifySign": "c29c8240bf99510d4d53a0ca36f9c135",  
    "amount": "13",  
    "currency": "USD",  
    "settleCurrency": "USD",  
    "reference": "test202001011206"  
}' '<'>
  • At the same time, the Point-of-Sale analyzes the response message from the /add API to identify and store the transaction number.
    Once the transaction ID is created, the customer will present a QR code to the POS manager for scanning.
  • As the QR code is scanned, the POS system calls Pockyt’s “/prepay” API to process the digital wallet payment.


curl -XPOST -H "Content-type: application/json" -d '{  
    "merchantNo": "200043",  
    "storeNo": "300014",  
    "verifySign": "f38965887c5676e2fb19d951251eb613",  
    "transactionNo": "297553636764407286", "paymentBarcode": "286498530672949108",  
    "vendor": "alipay"  
}' '<'>
  • The POS manager now polls for the transaction status using the “/tran-query” API and the customer sees a UI prompting them to confirm the transaction.


curl -XPOST -H "Content-type: application/json" -d '{  
    "merchantNo": "200043",  
    "storeNo": "300014",  
    "transactionNo": "297553638300708562",  
    "verifySign": "0df745088d7202a6d186596acdc82c6a"  
}' '<'>
  • Upon confirmation, the digital wallet server processes the payment and notifies Pockyt about the completed transaction.
  • Pockyt relays the transaction status to the POS system and a ‘success’ message appears on a customer-facing display.
  • It is now time for the POS system to generate a customer receipt that records the entire transaction information.