https://sandhu-sahil.github.io/Blockchain-Solidity-1st/
mood.sol is the smart contract that is deployed on the blockchain. It has a function setMood that sets the mood of the user and another function getMood that returns the mood of the user.
Deploy the smart contract on the blockchain using Remix Compiler by setting the environment to Injected Provider - MetaMask. This will deploy the smart contract on the blockchain and return the address of the smart contract.
Now, we need to connect the smart contract to the frontend. For this, we need to use the web3.js library. We need to install the web3.js library using npm install web3 command.
And index.js inculde all the code to connect the smart contract to the frontend.