get rock owners 😂

rock_owners.js

// run this in inspector
var howMany = 1000

const ABI = JSON.parse('[{"constant":false,"inputs":[{"name":"rockNumber","type":"uint256"},{"name":"receiver","type":"address"}],"name":"giftRock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"uint256"}],"name":"rockOwners","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"rockNumber","type":"uint256"}],"name":"dontSellRock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"rockNumber","type":"uint256"}],"name":"buyRock","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"rocks","outputs":[{"name":"owner","type":"address"},{"name":"currentlyForSale","type":"bool"},{"name":"price","type":"uint256"},{"name":"timesSold","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"rockNumber","type":"uint256"}],"name":"getRockInfo","outputs":[{"name":"","type":"address"},{"name":"","type":"bool"},{"name":"","type":"uint256"},{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_address","type":"address"}],"name":"rockOwningHistory","outputs":[{"name":"","type":"uint256[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"latestNewRockForSale","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"rockNumber","type":"uint256"},{"name":"price","type":"uint256"}],"name":"sellRock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]')
const contractAddress = '0x37504ae0282f5f334ed29b4548646f887977b7cc'
var RocksContract = web3.eth.contract(ABI)
var Rocks = RocksContract.at(contractAddress)

var data = new Array(howMany).fill(0);

for (let i in data) {
	Rocks.rocks(i, (err, res) => {data[i] = res[0] })
}

// wait til the above is done running then use this to print indices of available rocks
console.log(data.map((e, i) => !e ? i : '').filter(String))

might hit the rate limiter which will show you some invalid results