PayNow Decoder

A TypeScript library for decoding PayNow QR codes and extracting payment information.

Installation

npm install paynow-decoder

Usage

import { PayNowDecoder } from 'paynow-decoder';

const payload = '...'; // Your PayNow QR code payload
const decodedData = PayNowDecoder.decode(payload);
console.log(decodedData);
/* Output:
{
  payloadFormat: "01",
  pointOfInitiation: "12",
  merchantAccountInfo: {
    identifier: "SG.PAYNOW",
    proxyType: "mobile", // or "uen"
    proxyValue: "+6512345678",
    amountEditable: true,
    expiryDate: "20241130230000"
  },
  merchantCategoryCode: "0000",
  currencyCode: "702",
  transactionAmount: 99.99,
  countryCode: "SG",
  merchantName: "TEST COMPANY",
  merchantCity: "Singapore",
  additionalData: {
    referenceNumber: "TESTQRCODE"
  },
  crc: "2A56"
}
*/

Features

• Decodes PayNow QR codes for both UEN and mobile number recipients
• Extracts complete payment information including:
  • Proxy type (UEN/mobile)
  • Proxy value
  • Transaction amount
  • Reference number
  • Merchant details
  • Expiry date
  • Amount editability

License

MIT