CertifyChain

Index

• CertifyChain
• Index
• About
  • Techstack
• How to setup
  • Clone the repo
  • Install dependencies
  • Create a .env file
• Contracts
  • Conpile Contract (Hardhat)
  • Deploy Contract (Hardhat)
• Finally run the webapp
• License

About

CertifyChain is a project that aims to provide certificate management and verification through the Ethereum blockchain.

The project is divided into two parts:

Techstack

- ReactJS
- RemixIDE
- Solidity
- EtherJS
- Hardhat

How to setup

Clone the repo

Fork and clone the repo

git clone git:github@<YOUR_USERNAME>/CertifyChain.git
cd CertifyChain

Install dependencies

npm install

Create a .env file

Create a .env file in the root of the project and add the following variables:

INFURA_API_KEY=YOUR_INFURA_API_KEY
PRIVATE_KEY=PVT_KEY_OF_YOUR_METAMASK_WALLET

Replace the key with your Indura API key generated from Infura and the private key of your metamask wallet.

Contracts

Inside the contracts folder you will find the certificate.sol smart contract that will be deployed on the ethereum blockchain. Open the contract on RemixIDE and deploy it on the Sepolia test network.

NOTE: Perform the following steps if you are deploying your own contract. A test contract has already been deployed at 0x4aF28d9e9e056620bbB78d8870b1942cc9B34954

Conpile Contract (Hardhat)

npx hardhat compile

Deploy Contract (Hardhat)

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

After the contract is deployed, copy the contract address and paste it in the App.js file in thesrc` folder.

const certificateAddress = "NEW_CONTRACT_ADDRESS";

And replace the contract abi file in contracts/certificate.sol/certificate.json

Finally run the webapp

npm start

The webapp will be running on localhost:3000

To open the same application of another device for testing purposes, make sure that the device is connected to the same network as the device on which the webapp is running. Then visit http://<IP_ADDRESS_OF_THE_DEVICE_RUNNING_THE_WEBAPP>:3000

License

The projects is licensed under MIT