Blockchain Development for Finance Projects

App.js

App.js has the following functions:

• Use the injected web3 objected to connect to the Ganache blockchain and set the network in the navigation bar.
• Asynchronously access MetaMask for account authorization.
• Define the Transfer, Approve, and Mint methods for interacting with the token contracts.
• Set the state and pass the relevant props to the container component before each operation (Approve, Mint, and Transfer) is carried out.

Let's look at the code:

1. We will start writing App.js by first importing React, Web3, and the app components, as shown here:

import React, { Component } from 'react';import Web3 from 'web3'import Tokens20 from './Tokens/all20';import Tokens721 from './Tokens/all721';import Nav from './Components/Nav';import ...