Marketplaces
All non-fungible tokens created by framework could be traded on 3rd party marketplaces. To make this experience smooth and pleasant we created JSON-microservice. Main goal of this service to display information about tokens in compliant format.
ERC721 doesn't describe data structure at all while ERC1155 defines it in general. The actual implementation with examples is available at OpenSea's documentation. This implementation is also compatible with Metamask wallet
Example
Here is an example of metadata for RANDOM, UPGRADABLE ERC998 token
{
"description": "Lorem ipsum dolor sit amet...",
"external_url": "https://example.com/metadata/0x96c1f5d31c4c627d6e84a046d4790cac4f17d3ed/1",
"image": "https://cdn.example.com/images/warrior.png",
"name": "Warrior",
"attributes": [
{
"trait_type": "LEVEL",
"value": "1"
},
{
"trait_type": "RARITY",
"value": "RARE"
}
]
}