NFT holders snapshot tool

snapshot.js

import fetch from 'node-fetch';
import fs from 'fs';

var requestOptions = {
    method: 'GET',
    redirect: 'follow'
};

const apiKey = "INSERT_YOUR_OWN_API_KEY_HERE"

const collections = [
    {name: 'BAYC', address: '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d'},
    {name: 'MAYC', address: '0x60e4d786628fea6478f785a6d7e704777c86a7c6'},
    {name: 'Decentraland', address: '0xF87E31492Faf9A91B02Ee0dEAAd50d51d56D5d4d'},
    {name: 'Sandbox', address: '0x5CC5B05a8A13E3fBDB0BB9FcCd98D38e50F90c38'},
    {name: 'LobsterDAO', address: '0x026224A2940bFE258D0dbE947919B62fE321F042'}
]

const baseURL = `https://eth-mainnet.alchemyapi.io/nft/v2/${apiKey}/getOwnersForCollection`;

collections.forEach(collection => {
    const fetchURL = `${baseURL}?contractAddress=${collection.address}`;

    fetch(fetchURL, requestOptions)
        .then(response => response.json())
        .then(response => {
            const holders = response.ownerAddresses.map((ownerAddress) => {
                return ownerAddress;
            });

            fs.writeFile("./" + collection.name + "_snapshot.csv", holders.join("\r\n"), (err) => {
                console.log(err || "Snapshot for " + collection.name + " saved.");
            });
        })
        .catch(error => console.log('error', error));
});