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Odyssey NFT restoring tool - Ethereum

This tool allows fetching NFTs info from DB and store them in a JSON file and later restore them in to a new NFT contract.

Backup into JSON file

This will store all NFTs for given contract_address in a JSON file with timestamp.

You need to provide a DB_URL env variable.

export DB_URL=postgres://user@pass:host[:5432]/dbname

npm run backup <source_contract_address>

Restore from JSON file

This will restore all NFTs from a JSON file into a new contract.

You need to provide a private key for the contract admin account and a JSON RPC URL (default is http://127.0.0.1:8545).

export ETH_PRIVATE_KEY=0x12312a122313123123123

# export JSON_RPC_URL=https://mainnet.infura.io/v3/123123123

npm run restore <destination_contract_address> <backup_json_filename>

We expect to have a perfect match between the NFT ids (object_id field) in the JSON file and the NFTs in the contract. If there is a mismatch in the expected ID, the script will fail.

It can though detect the progress till ID X and skip the NFTs before X and continue with the rest.

How to get the private key for the contract admin account

Here's how to retrive the account's private key in MetaMask.