DapforBookingCourses

Decentralized Courses Booking system based on Smart contracts

This is a decentralized courses booking system based on smart contracts, built with hardhat, solidity, Ethers JS ,reactJS as technologies and many third party libraries .

Requirements :

You need to have a crypto Wallet and connect with an account
For web users, you can get a wallet through MetaMask

You need to have a wallet with testnet ethereum on the Goerli network Get free Goerli faucet

Architecture :

Design Patterns :

Normal Factory design pattern

to create the student and Session objects in Factory Class

Method template design pattern

thus creating an abstract interface for the student and use it in the Factory ckass to create the student

Generating and deploying Smart Contracts

Setting up the project

Clone the project

then cd Dapforbookingcourses/DapSystem

Install npm dependencies

npm i

Configurations

create .env file in the root directory set up these constants

QUICKNODE_API_URL=YOUR_QUICKNODE_API_KEY
ACCOUNT_PK=YOUR_RINKEBY_ACCOUNT_PK
ETHERSCAN_API_KEY=YOUR_ETHERSCAN_API_KEY
COINMARKETCAP_API_KEY=YOUR_COINMARKETCAP_API_KEY
GOERLI_ALCHEMY_URL=GOERLI_ALCHEMY_URL

Try running some of the following tasks:

compile the contracts

npx hardhat compile

deploy the contracts locally

npx hardhat run scripts/deploy.js

deploy the contracts to goerli network

npx hardhat run scripts/deploy.js --network goerli

Unit Testing for the contract

npx hardhat test

Test coverage report

npx hardhat coverage

Execute Balance task

npx hardhat balance --account account_public_key

Front Running

Configuration

Create .env file in the root directory and set up the contract addresses
The contract address are produced by compile the smart contracts from the ../DapSystem
Note : These are the Factory Contracts that creates all the other contracts (15 smart contract in total)

REACT_APP_STUDENT_CONTRACT_ADDRESS=
REACT_APP_STUDENT_LEVEL_CONTRACT_ADDRESS=
REACT_APP_SESSION_CONTRACT_ADDRESS=
REACT_APP_PATH_CONTRACT_ADDRESS=
REACT_APP_LEVEL_CONTRACT_ADDRESS=
REACT_APP_ADMIN_CONTRACT_ADDRESS=

npm i

install dependencies

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

The page will reload when you make changes.
You may also see any lint errors in the console.

DEMO:

watch this video