For APIs like /{address}/nft that return NFT information, it includes a metadata property. Can I get clarification on how the value of this property is set?
I have seen a few instances where different tokens from the same contract has this property
populated while others have it as null.
As an example, the first of these tokens (token_id: 68894) have the metadata property set while the other (token_id 23353) have it as null
{
"token_address": "0x6e4c6d9b0930073e958abd2aba516b885260b8ff",
"token_id": "68894",
"amount": "1",
"owner_of": "0x87c066ed3142776f3df0b6bf329a72a7a672c7c5",
"block_number": "12258081",
"block_number_minted": "12258081",
"contract_type": "ERC721",
"token_uri": "https://api.influenceth.io/metadata/asteroids/68894",
"metadata": "{\"name\":\"PN-35519\",\"image\":\"https://images.influenceth.io/v1/asteroids/68894/image.svg\",\"description\":\"A small, superior, Cis-type asteroid\",\"external_url\":\"https://game.influenceth.io/asteroids/68894\",\"background_color\":\"000000\",\"attributes\":[{\"trait_type\":\"Spectral Type\",\"value\":\"Cis\"},{\"trait_type\":\"Diameter (m)\",\"display_type\":\"number\",\"value\":3776},{\"trait_type\":\"Orbital Period (days)\",\"display_type\":\"number\",\"value\":1437},{\"trait_type\":\"Eccentricity\",\"display_type\":\"number\",\"value\":0.245},{\"trait_type\":\"Inclination (deg)\",\"display_type\":\"number\",\"value\":3.89},{\"trait_type\":\"Scanned\",\"value\":\"Yes\"},{\"trait_type\":\"Rarity\",\"value\":\"Superior\"},{\"trait_type\":\"Yield1\",\"display_type\":\"boost_percentage\",\"value\":3},{\"trait_type\":\"Metal1\",\"display_type\":\"boost_percentage\",\"value\":10},{\"trait_type\":\"Organic1\",\"display_type\":\"boost_percentage\",\"value\":10},{\"trait_type\":\"Can Mint Crew\",\"value\":\"Arvad Specialist\"}]}",
"synced_at": null,
"name": "Influence Asteroids",
"symbol": "INFA"
},
{
"token_address": "0x6e4c6d9b0930073e958abd2aba516b885260b8ff",
"token_id": "23353",
"amount": "1",
"owner_of": "0x87c066ed3142776f3df0b6bf329a72a7a672c7c5",
"block_number": "12258668",
"block_number_minted": "12258668",
"contract_type": "ERC721",
"token_uri": "https://api.influenceth.io/metadata/asteroids/23353",
"metadata": null,
"synced_at": null,
"name": "Influence Asteroids",
"symbol": "INFA"
},
For reference, the above is part of the result from this call:
curl -X 'GET' \
'https://deep-index.moralis.io/api/v2/0x87c066ed3142776f3df0b6bf329a72a7a672c7c5/nft/0x6e4c6d9b0930073e958abd2aba516b885260b8ff?chain=eth&format=decimal' \
-H 'accept: application/json' \
-H 'X-API-Key: XXXXXXXXXXXXXXX'
