save_json.ts

const description = "My nft is cool, this is the image number: 1"
const attributes = [{
  trait_type: 'Hair',
  value: 'None'
}]

const dataNft = await uploadNFTStorage(`./output/images/${items[i].tokenId}.png`, `${items[i].tokenId}`, description, attributes);

const info: TokenIpfs = {
  name: 'Image 1',
  tokenId: 1,
  description,
  image: dataNft.ipfsImage,
  hostedImage: dataNft.hostedImage,
  imageMetadata: dataNft.url,
  attributes
}

fs.writeFileSync(`./output/data/${item.tokenId}.json`, JSON.stringify(info, null, 2))