Certifier Dapp - Decentralized and Secured Certification System using Blockchain

Certifier Dapp is a web application built on the Ethereum blockchain that allows users to issue, update, verify and track the change history of certificates. It is built using Web3, Ethers.js, Truffle, and Solidity for the backend and React.js for the frontend. It demonstrates the power and potential of blockchain technology in the field of certification.

Features

• Signin with Ethereum Wallet (MetaMask)
• Issue New Certificate
• Update Issued Certificates
• Verify Issued Certificates
• Track Change history of Issued Certificates

Authors

• @aachal01
• @jhasuraj01

Tech Stack

Web3

• Ethers.js
• Truffle
• Solidity

Frontend

• React.js
• React Router
• React Toastify

Environment Setup

• Download and install the latest node and npm from https://nodejs.org/en/download/

• Download and install Visual Studio Code from https://code.visualstudio.com/

• Download and install Ganache from https://trufflesuite.com/ganache/

  • Create new Workspace
  • Link this project to workspace
  • Update port number to 8545
  • 

• Install Truffle npm install truffle -g

• Link Metamask to Local Blockchain network created by Ganache

Run Locally

Clone the project

  git clone https://github.com/aachal01/certifier-dapp.git

Go to the project directory

  cd certifier-dapp

Install dependencies

  npm install

Deploy Smart Contract locally

  npm run contract:deploy

Start the server

  npm run start

Screenshots

Link MetaMask Account

View all the Issued Certificates by You!

Create New Certificate

Update Issued Certificate

Verify Certificate and view Change History

Transactions Preview in Ganache

Deployed Smart Contract

Appendix

This project was created as a semester course work for the Blockchain Honor Degree at Pimpri Chinchwad College Of Engineering.