Interacting with the Blockchain
Explore how to connect a React Web3 application to the Ethereum blockchain using the Web3 library and MetaMask. Understand how to initialize Web3, manage wallet connectivity with React hooks, and verify blockchain access by retrieving the latest block data.
We'll cover the following...
We'll cover the following...
Setting up the blockchain
We’ll be using the Web3 library to interact with the blockchain. We’ll import this library at the top of our index file.
import Web3 from "web3";
We can instantiate this Web3 object by passing window.ethereum to it. This way, we’re instructing Web3 to connect to the blockchain using MetaMask.
If the window.ethereum object doesn’t exist, there isn’t much we can do. If it does, can use it to instantiate the Web3 ...