This script fetches the USDC token details from the ethereum mainnet and returns: the total_supply, the name, the token symbol and the balance

usdc_details.ts

/*
TODO:
Locate the address of USDC on ethereum mainnet,
1. Query the balance, the token decimal, the name, and the token symbol.
*/

/*
// 3 things are needed to interact with a Smart contract:
1. Address
2. ABI
3. provider
*/


import { ethers } from 'ethers';

const provider = ethers.getDefaultProvider("mainnet");

// Define the USDC contract address
const DaiAddress = "0x6B175474E89094C44Da98b954EedeAC495271d0F";

// Define the USDC contract ABI (simplified)
const daiAbi = [
    "function totalSupply() view returns (uint256)",
    "function name() view returns (string)",
    "function symbol() view returns (string)",
    "function decimals() external view returns (uint8)",
    "function balanceOf(address account) external view returns (uint256)"
];

// Create a contract object
const DaiContract = new ethers.Contract(DaiAddress, daiAbi, provider);

console.log("###############################");
console.log("Querying DAI token Details:");
console.log("###############################");

// Using the promises chaining style
function daiDetails() {
    DaiContract.name().then(name => {
        console.log("The name of the token is: ", name)
    })

    DaiContract.symbol().then(symbol => {
        console.log("The symbol of the token is: ", symbol)
    })

    // Call the totalSupply method
    DaiContract.totalSupply().then((result) => {
        // Convert the result from wei to ether
        let supply = ethers.formatEther(result);
        console.log("The total supply of DAI is", supply);
    });

    provider.getBalance(DaiAddress).then((result) => {
        console.log("The balance of DAI is : ", ethers.formatEther(result));
    });

    DaiContract.decimals().then(result => {
        console.log("The decimal of the token is: ", ethers.formatUnits(result).toString())
    })
}
daiDetails();


// OR USING THE ASYNC/AWAIT STYLE


const daiDetails2 = async () => {
    const daiName = await DaiContract.name();
    const daiSymbol = await DaiContract.symbol();
    const daiBalance = await DaiContract.balanceOf(DaiAddress);
    const daiTotalSupply = await DaiContract.totalSupply();
    const daiDecimal = await DaiContract.decimals();

    console.log("\nUsing async/await form");
    console.log("The name of DAI token is: ", daiName);
    console.log("The symbol of DAI token is: ", daiSymbol);
    console.log("The balance of DAI token is: ", ethers.formatEther(daiBalance));
    console.log("The total Supply of DAI token is: ", ethers.formatEther(daiTotalSupply));
    console.log("The decimal of DAI token is: ", ethers.formatUnits(daiDecimal));
}

daiDetails2();