Get Token owner with Moralis API

fetch_owner_addresses.js

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

function getUriWithCursor(baseUrl, cursor) {
  return baseUrl + "&cursor=" + cursor
}

async function makeMoralisRequest(url) {
  try {
    const config = {
      method: 'GET',
      headers: {
        'Accept': 'application/json',
        'X-API-Key': 'yOurApiKey',
      },
    }
    const response = await fetch(url, config)
    const decodedResponse = await response.json()

    console.log("Got batch of", decodedResponse.page_size, "of", decodedResponse.total)

    return decodedResponse
  } catch (error) {
    console.log("Error while trying to fetch from moralis", error)
  }

}

async function getResults(tokenAddress, tokenId) {
  const baseUrl = "https://deep-index.moralis.io/api/v2/nft/" + tokenAddress + "/" + tokenId + "/owners?chain=eth&format=decimal"


  let all_entries = []

  let response = await makeMoralisRequest(baseUrl)

  let result = response.result
  let cursor = response.cursor
  const total = response.total

  all_entries = all_entries.concat(result)

  while (total > all_entries.length) {

    // Timeout or rate limit from moralis
    await new Promise(r => setTimeout(r, 2000));

    const urlWithCursor = getUriWithCursor(baseUrl, cursor)

    let response = await makeMoralisRequest(urlWithCursor)
    result = response.result
    cursor = response.cursor

    all_entries = all_entries.concat(result)


  }

  return all_entries
}


async function getAddresses(tokenAddress, tokenId) {

  let entries = await getResults(tokenAddress, tokenId)

  let all_addresses = []

  for (const entry of entries) {
    const address = entry.owner_of
    for (let index = 0; index < entry.amount; index++) {
      all_addresses.push(address)

    }
  }

  await fs.writeFileSync('./completeresponse.json', JSON.stringify(entries));
  await fs.writeFileSync('./addresses.json', JSON.stringify(all_addresses));
  console.log("Found", entries.length, "entries")


}

async function main() {
  const tokenAddress = "0xdeadbeef"
  const tokenId = "1"

  const addresses = await getAddresses(tokenAddress, tokenId)

}

main()

This allows you to get all holder / owner of any ERC1155 token