erc721metadata

erc721metadata is ERC721 tokenURI metadata JSON library implementation by Go.

Support

• name, description and image defined by EIP-721 and EIP-1047.
• Enhancements metadata attributes PR by EIPs#1071.
• OpenSea metadata external_url and background_color defined by OpenSea metadata.
• OpenSea type attrubutes. trait_type, value, display_type and max_value OpenSea metadata.
• Rare Bits metadata image_url, home_url, tags and properties defined by Rare Bits.
• Some wallet depvelopers require timestamp and language.
• extra_data NFT's specific data which can't compare with other NFTs defined here.