Collection represents a group of NFTs. Historically NFTs were grouped by smart-contracts which were considered as collections. Later on appeared projects which allowed minting NFTs in the same contract so one contract could contain several collections. Or vice-versa, sometimes several smart-contracts contain NFTs from one collection
You can find more information about Collection data model in the API reference section
| Field | Type | Description |
|---|---|---|
| id | string | identifier of the Collection, format is ${blockchain}:${identifier} |
| blockchain | enum | "ETHEREUM" "POLYGON" "FLOW" etc... |
| structure | enum | Collection structure can be described as: - REGULAR: a standalone collection that has a corresponding contract address on the blockchain. - COMPOSITE: an artificial collection that is composed of one or more regular collections or items. - PART: an artificial collection that is a part of a larger regular collection, thus has a parent collection. |
| type | enum | ERC721, ERC1155, FLOW etc - type of Collection contract |