crypto0390/nft-airdrops

Smart contract allowing withdrawing claimable NFT airdrops

DePay's Claimable NFT Airdrops

Smart contract allowing to airdrop NFTs without sending them to the receivers but instead having receivers withdrawal them through the airdrop contract.

Airdrop distributors reate off-chain signatures that can be used by the airdrop receiver to redeem them for the NFT.

Deployments

Mainnet

DePayNFTAirdropV1 XXX

Ropsten

DePayNFTAirdropV1 0x1ceadd57e477901499c08aec5d2044cc3430d7fc

ERC721 0xe7f982e9f25471bc1dd6a84a5433274834d7853f9b49357ece40538ce2c5d7af

ERC1155 0xb6bb75ae8af249891b1cdcb92a6cb74c6c1b30f8

Functionalities

claim Claim NFT

The main function allowing people to redeem off-chain airdrop signatures for NFTs.

Arguments:

address tokenAddress: The address of the NFT to be claimed.

address[] receivers: An array of all receivers, required to validate off-chain signatures.

bool isERC1155: Boolean indicating if the airdrop token is a ERC1155 (otherwise falling back to ERC721).

uint256[] tokenIds: Ids of all airdroped NFT tokens, required to validate off-chain signatures.

uint256 index: Position/index of the current receiver within receivers and tokenIds.

uint8 v: v of the off-chain signature.

bytes32 r: r of the off-chain signature.

bytes32 s: s of the off-chain signature.

Deploy

1. yarn flatten

2. Deploy flatten contract via https://remix.ethereum.org/