formatEther no longer works?

Question

I want to convert bigNumber to Ether unit. I used the formatEther keyword but I keep getting "Typeerror: formatEther is not a function.

Here's the code:

const axios = require("axios");
const BigNumber = require("bignumber.js");
const formatEther = require("ethers");

// copy-paste your URL provided in your Alchemy.com dashboard
const ALCHEMY_URL =
  "......";

axios
  .post(ALCHEMY_URL, {
    jsonrpc: "2.0",
    id: 1,
    method: "eth_getBalance",
    params: [
      "0xC..................", // Ethereum address
      "latest", // get latest account balance of the address
    ],
  })
  .then((response) => {
    const result = BigNumber(response.data.result);
    const numberString = formatEther(result);
    console.log(numberString);
  });

Answer 1

Have a look at the code below, you can use ethers.utils.formatEther and also ethers.BigNumber.from from ethers utils. This should do the job.

const axios = require("axios");
const { ethers } = require("ethers");

const ALCHEMY_URL = "YOUR_ALCHEMY_API_URL";

axios
  .post(ALCHEMY_URL, {
    jsonrpc: "2.0",
    id: 1,
    method: "eth_getBalance",
    params: [
      "0xC..................", // Ethereum address
      "latest", // get latest account balance of the address
    ],
  })
  .then((response) => {
    const result = ethers.BigNumber.from(response.data.result);
    const numberString = ethers.utils.formatEther(result);
    console.log(numberString);
  });

If you want to further destructure your imports you can do:

const { utils, BigNumber } = require("ethers");

and use it as follows:

const result = BigNumber.from(response.data.result);
const numberString = utils.formatEther(result);

Answer 2

It still works, it's included in utils, check here