How to get assets with a specifc policy id from a wallet address using BlockFrost OpenAPI

Question

For context, I'm trying to get all NFTs with a policy id, but only from a wallet address. I'm using BlockFrost OpenAPI, and it seems that I can only get assets with a policy id from the entire blockchain?? Using this url : 'https://cardano-mainnet.blockfrost.io/api/v0/assets/policy/{policy_id}'

I tried to filter the assets from this url response : https://cardano-mainnet.blockfrost.io/api/v0/accounts/{stake_address}/addresses/assets but I only can get 100 assets per page, and I get no info about how much page there is. They explicitly says on the doc that the count is from 0 to 100.

Answer 1

You could do something like:

let assets = [];
let final = false;
let page = 1;

while (final !== true) {
  const req = await get_function(url, page);
  assets = [...assets, ...req.data];
  page++;
  if (req.data.length < 100) {
    final = true;
  }
}