Cola Day 2022 - Room Booking System [PoC]

This application is a proof of concept for a room booking system for Cola Day 2022.

Demo

• Dapp: https://coladay.vercel.app/
• Contract: 0x40b5A678f5151423fB8D43712BF0e76d991a1fa7

Features

• shows meeting rooms availability
• allows users to book meeting rooms by the hour (up to 4 hours per event)
• allows users to cancel their booking
• stores data in blockChain (Ropsten Test Network)
• encrypts event titles with public key encryption (end to end)

Usage

• On your browser, login to MetaMask and connect to Ropsten Testnet.
• Visit the demo site: https://coladay.vercel.app/
• Then, drag your mouse over the timetable to start booking rooms!

Note

• This web app is designed for Desktop/Laptop devices, not compatible with mobile browsers.
• Each time you create or delete an event on the blockchain, you will need Ethereum gas for the transaction.
• The event date is automatically updated to tomorrow for demo purpose.

Architecture

Dev setup

Contract

Set up secret keys & mnemonic phrase

$ cd truffle
$ mv secrets_template.json secrets.json

Then, edit the secrets.json file with your own secret keys and mnemonic phrase:

• mnemonic -> use your account on testnet. To create a new account, run $ npx mnemonics.
• projectId -> use your project ID on Infura
• etherscanApiKey

Install dependencies

$ cd truffle
$ npm install
$ npm install -g truffle
$ npm install -g ganache-cli

Local Development with Truffle & Ganache

$ cd truffle
$ ganache-cli --accounts 10
$ truffle compile
$ truffle compile && truffle migrate --network develop

Test with Truffle

$ truffle test --show-events

Deploy to Ropsten Testnet

$ truffle compile &&truffle migrate --network ropsten

Front-end

Install dependencies

$ cd client
$ npm install

Start React dev server

$ npm start

Build

$ npm build