tarrif

RSK Hackathon: Building the Future on Bitcoin

Description

tarrif QR code based payments app, where one user can generate a QR price tag for a product or scan a QR code for another user and send them payments on the RSK Network denominated in an ERC20 token.

Feature:

• Generate QR price tags for products to be paid in an ERC20 token.
• Scan to see details and pay.

Local Deployment:

Back-end:

cd back
cp .env.example .env
npm start

Front-end:

cd front
yarn start

Future improvements:

• Support bulk QR generation from a csv file (or similar).
• Support RNS instead of receiver's address.
• Embed a product image in the QR code.
• Convert to PWA or an Android App.

Important notes for testers/reviewers:

• If we're only testing on localhost the app would work fine on HTTP (by following the instructions in section: Local Development).

• If we would like to test functionality globally both the front-end and the back-end need to be served with SSL (because most of modern web browsers don't allow access to media devices on plain HTTP); follow the steps below

  check /back/.env.example and change GLOBAL_SERVICE_ADDRESS according to the ip address of the device hosting the backend, copy .env.example to .env

  run the backend: npm start:global:ssl (visit the address on the console in your web browser to add the certificate, we're using self-signed certificate just as a POC)

  we need to check /front/.env and change REACT_APP_BACKEND_ADDRESS to be the same address printed on the backend console.

  For example: when we run the backend we get app listening on port 3001! Go to https://192.168.1.12:3001 so we set REACT_APP_BACKEND_ADDRESS=https://192.168.1.12:3001

  and then we run the front-end on SSL with yarn build:ssl