nft

NFT-indexer

Listens to EVM-based blockchain and reconstructs state for all NFTs found in the blockchain. Types of NFTs supported:

• ERC-721
• ERC-1155
• Crypto Punks (in progress)

API

This module has controllers to

• query data about NFTs (who owns what, how many ERC-1155 address has)
• query data about events (transfers, mints, burns)
• create lazy-minted NFTs
• post information about pending transactions

Listener

This module listens to the events and updates data accordingly. It's based on log listener

Data Model

Item - represents one NFT. Item can be owned only by one address (ERC-721) or many owners can own it (ERC-1155).

Ownership - represents item owned by address (relation between owner and Item).

ItemHistory - all events about Items and Ownerships (transfer, mint, burn etc.). Listener listens to these events from the blockchain, saves them and recreates the state of Items and Ownerships.

Token - represents smart contract (collection) in the blockchain. Items live inside these smart contracts.