natsu90 / duitnowqr-test

DuitNow QR Code Generator Test

DuitNow QR Code Generator Test

i found there's an interesting use case of DuitNow from @kidino, where you would scan a DuitNow QR code on an electric massage chair, then the chair would work after you successfully paid.

so i tried to find a way to generate your own DuitNow QR, without going through the banking app, but it seems to be that some organisation (looking at you @paynet-my) is trying to gatekeep this info.

in case of PayNow, generating a PayNow QR code is quite straight forward when you already have your own PayNow ID. but generating a DuitNow QR is a pain in the ass with seems to be unnecessary complexity.

below is the source code of DuitNow QR generator after reverse engineering a lot of DuitNow QRs. but i still can't manage to get how we could get the account and app value, or simply implement it with our own DuitNow ID like PayNow do.

Source

https://gist.github.com/natsu90/f45dc88b38a037325ad9095163b82b42

Usage

npm install gist:f45dc88b38a037325ad9095163b82b42

const { generateDuitNowStr } = require('duitnow-js')

const qrString = generateDuitNowStr({
    account: '0000000000000000000000072339', // UNKNOWN Account ID
    app: '890087', // UNKNOWN ID
    category: '7399', // Merchant Category Code
    name: 'GINTELL REST N GO SDN BHD',
    city: 'KEPONG MENJALARA',
    postcode: '52200',
    ref5: '0.1626.0', // Reference Label
    ref6: '16881451', // Customer Label 
    ref8: 'Start machine via DuitNow', // Purpose of Transaction
    ref82: '7FFC1AC00E99EA2D7A0D7BB79755736A' // unknown Ref Number

})

Tests

npm install

npm run test

Output

Merchant Category Code

https://global.alipay.com/docs/ac/ref/mcccodes

DuitNow Limitations

1. Can't use our own registered DuitNow ID like mobile number, NRIC, etc. Unlike PayNow(SG) & PromptPay(TH)

2. Can't use the same account ID in static generated QR code into a dynamic generated QR code with a specified amount

Credits

https://gist.github.com/chengkiang/7e1c4899768245570cc49c7d23bc394c

License

Licensed under the MIT license