Get a contract ABI programmatically with the Etherscan API

getAbi.js

const axios = require('axios')
const { ethers } = require('ethers')

const address = '0x2260fac5e5542a773aa44fbcfedf7c193bc2c599'
const apiKey = ''
const url = `https://api.etherscan.io/api?module=contract&action=getabi&address=${address}&apikey=${apiKey}`
const infuraUrl = ''

const getAbi = async () => {
  const res = await axios.get(url)
  const abi = JSON.parse(res.data.result)
  // console.log(abi)

  const provider = new ethers.providers.JsonRpcProvider(infuraUrl)
  const contract = new ethers.Contract(
    address,
    abi,
    provider
  )

  const name = await contract.name()
  const totalSupply = await contract.totalSupply()

  console.log(name)
  console.log(totalSupply.toString())
}
getAbi()

package.json

{
  "name": "getabi",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "axios": "^0.26.1",
    "ethers": "^5.6.2"
  }
}