JPQR

JPQR library that uses go.mercari.io/go-emv-code by WebAssembly.

Installation

npm install @natade-coco/jpqr

Usage

import JPQR from '@natade-coco/jpqr';

const code = JPQR.mpmEncode({
  payloadFormatIndicator: '01',
  pointOfInitiationMethod: 'dynamic',
  merchantAccountInformation: [{
    tag: '26',
    length: '68',
    value: '0019jp.or.paymentsjapan011300000000000010204000103060000010406000001'
  }],
  merchantCategoryCode: '5812',
  transactionCurrency: '392',
  transactionAmount: '498',
  countryCode: 'JP',
  merchantName: 'xxx',
  merchantCity: 'xxx',
  postalCode: '5300005',
  merchantInformation: {
    languagePreference: 'JA',
    name: 'ナタデココ カフェ'
  }
});

console.log(code);  // 00020101021226680019jp.or.paymentsjapan01130000000000001020400010306000001040600000152045812530339254034985802JP5903xxx6003xxx6107530000564190002JA0109ナタデココ カフェ63045BA0
showQRCode(code);

API

mpmEncode(mpmInformation: MPMInformation): string

Get JPQR MPM code for showing QR Code. For details, please refer to JPQR MPM guideline 1.1.

Example

const code = JPQR.mpmEncode({
  payloadFormatIndicator: '01',  // '01' 固定
  pointOfInitiationMethod: 'dynamic',  // 静的 'static' または 動的 'dynamic'
  merchantAccountInformation: [{
    tag: '26',
    length: '68',
    value: '0019jp.or.paymentsjapan011300000000000010204000103060000010406000001'
  }],
  merchantCategoryCode: '5812',
  transactionCurrency: '392',  // 円 '392' 固定
  transactionAmount: '498',  // 静的の場合は任意、動的の場合は必須
  countryCode: 'JP',  // 日本 'JP' 固定
  merchantName: 'xxx',
  merchantCity: 'xxx',
  postalCode: '5300005',
  merchantInformation: {
    languagePreference: 'JA',  // 日本語 'JA' 固定
    name: 'ナタデココ カフェ'
  }
});