BUET-BeeCrypt / BUET-Beecrypt-BeeCertifier

A Dapp built with react which uses web3.js to interact with solidity smart contracts hosted on the rinkeby blockchain

BeeCertifier

A Dapp built with react which uses web3.js to interact with solidity smart contracts hosted on the rinkeby blockchain.

Frontend

• App.js file holds a single page application
• Smart contract functions
  • loadWeb3 - initialize web3 and contracts
  • getInitialData - get property and purchase lists
  • buyCourse - add surity on the blockchain
  • finishCourse - add unverified certificate data on the blockchain
  • approveCertificate - approve pending unverified certificate in the blockchain and also refund surity if the course is finished within deadline.

Contracts

Contracts are located in the src/contracts folder

• Certificate.sol
• Registry.sol

The ABIs for the contracts are located in src/abis folder

Setup

• Install node.js
• Run npm install from project root to install packages
• Create a .env file in project root like the following and put your contract addresses

CERTIFICATE_CONTRACT_ADDRESS=<here>
REGISTRY_CONTRACT_ADDRESS=<here>

• Install metamask, setup account
• Set network on metamask to 'Rinkeby Test Network' (if you deployed smart contracts to rinkeby). Might need to enable test networks in settings.
• Run npm start to run server and visit http://locahost:3000/
• Should get prompted by metamask to connect to the website. Accept it and you're good to go!

Architecture

Frontend Demo