Blockchain-based-Certificate-Authentication-System

Decentralized Application to store and verify the authenticity of Academic Certificates

Built using Ethereum on local blockchain setup and deployed on Ropsten test network.

| Contract deployed at | 0xAC677Fd653576A70b9fAde4396caEE4AE21fc95a | | -------------------- | ------------------------------------------ | | RPC Network | Ropsten Test Network |

Steps to set up local development environment

Setting local blockchain

We need to install Node, Ganache and Truffle.

Download Node.js Download Ganache & create a workspace. For Truffle

npm i -g truffle

Install dependencies

Launch cmd in project folder path

npm install

after completion

cd client
   npm install

Deploy the smart contract to the local blockchain.

truffle migrate

If the contracts are modified, then they should be re-migrated.

Setting MongoDB

Create account in MongoDB Atlas

Create a cluster and get the URI key, add it to .env file.

Setting Mail Service

Create an account in Sendgrid

Verify single sender email and get the API key, add them to .env file

Now we can start the server

In project folder, for server

npm run dev

In client folder

npm start

Deploying Smart Contract

The contract can be deployed in any test networks. We are using Ropsten test network with the help of truffle.

First of all we need to have a metamask account. When we create an account in metamask a mnemonic is given to us. You can read how to get a mnemonic here.