NFTs

const API = "https://toncenter.com/api/v3";
const FOLKS = "EQDkwQ_8GME2fA8h8Cn6_Bkw1njhHwbM11vJNLSpQaIyr48D";

const { nft_transfers } = await fetch(
  `${API}/nft/transfers?collection_address=${FOLKS}&limit=1000`,
).then((r) => r.json());

const senders = [...new Set(nft_transfers.map((t) => t.old_owner))];
const query = senders.slice(0, 500).map((a) => `address=${a}`).join("&");
const { nft_sales } = await fetch(`${API}/nft/sales?${query}`).then((r) =>
  r.json(),
);
const contracts = new Map(nft_sales.map((s) => [s.address, s]));

// a sale: the NFT leaves a sale contract for anyone but its seller
const prices = nft_transfers.flatMap((t) => {
  const sale = contracts.get(t.old_owner);
  if (!sale || t.new_owner === sale.nft_owner_address) return [];
  const { last_bid, full_price } = sale.details;
  return [(sale.type === "getgems_auction" ? last_bid : full_price) / 1e9]; // TON
});

const API = "https://toncenter.com/api/v3";
const FOLKS = "EQDkwQ_8GME2fA8h8Cn6_Bkw1njhHwbM11vJNLSpQaIyr48D";

const { nft_items } = await fetch(
  `${API}/nft/items?collection_address=${FOLKS}&limit=1000`,
).then((r) => r.json());

const BURN = `0:${"0".repeat(64)}`;
const owners = nft_items.map((nft) => nft.real_owner ?? nft.owner_address);
const supply = owners.filter((owner) => owner !== BURN);
const holders = new Set(supply);