ERC721Drop

BASE: ERC721A EXTENSION: DropSinglePhase The ERC721Drop contract implements the ERC721 NFT standard, along with the ERC721A optimization to the standard. It includes the following additions to standard ERC721 logic: - Contract metadata for royalty support on platforms such as OpenSea that use off-chain information to distribute roaylties. - Ownership of the contract, with the ability to restrict certain functions to only be called by the contract's owner. - Multicall capability to perform multiple actions atomically - EIP 2981 compliance for royalty support on NFT marketplaces. The drop mechanism in the DropSinglePhase extension is a distribution mechanism for lazy minted tokens. It lets you set restrictions such as a price to charge, an allowlist etc. when an address atttempts to mint lazy minted tokens. The ERC721Drop contract lets you lazy mint tokens, and distribute those lazy minted tokens via the drop mechanism.

Methods

OPERATOR_FILTER_REGISTRY

function OPERATOR_FILTER_REGISTRY() external view returns (contract IOperatorFilterRegistry)

Returns

Name	Type	Description
_0	contract IOperatorFilterRegistry	undefined

approve

function approve(address operator, uint256 tokenId) external nonpayable

See {ERC721-approve}.

Parameters

Name	Type	Description
operator	address	undefined
tokenId	uint256	undefined

balanceOf

function balanceOf(address owner) external view returns (uint256)

See {IERC721-balanceOf}.

Parameters

Name	Type	Description
owner	address	undefined

Returns

Name	Type	Description
_0	uint256	undefined

burn

function burn(uint256 _tokenId) external nonpayable

Lets an owner or approved operator burn the NFT of the given tokenId.

ERC721A's _burn(uint256,bool) internally checks for token approvals.

Parameters

Name	Type	Description
_tokenId	uint256	The tokenId of the NFT to burn.

claim

function claim(address _receiver, uint256 _quantity, address _currency, uint256 _pricePerToken, IDropSinglePhase.AllowlistProof _allowlistProof, bytes _data) external payable

Parameters

Name	Type	Description
_receiver	address	undefined
_quantity	uint256	undefined
_currency	address	undefined
_pricePerToken	uint256	undefined
_allowlistProof	IDropSinglePhase.AllowlistProof	undefined
_data	bytes	undefined

claimCondition

function claimCondition() external view returns (uint256 startTimestamp, uint256 maxClaimableSupply, uint256 supplyClaimed, uint256 quantityLimitPerWallet, bytes32 merkleRoot, uint256 pricePerToken, address currency, string metadata)

Returns

Name	Type	Description
startTimestamp	uint256	undefined
maxClaimableSupply	uint256	undefined
supplyClaimed	uint256	undefined
quantityLimitPerWallet	uint256	undefined
merkleRoot	bytes32	undefined
pricePerToken	uint256	undefined
currency	address	undefined
metadata	string	undefined

contractURI

function contractURI() external view returns (string)

Returns the contract metadata URI.

Returns

Name	Type	Description
_0	string	undefined

encryptDecrypt

function encryptDecrypt(bytes data, bytes key) external pure returns (bytes result)

Encrypt/decrypt data on chain.

Encrypt/decrypt given data with key. Uses inline assembly. See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain

Parameters

Name	Type	Description
data	bytes	Bytes of data to encrypt/decrypt.
key	bytes	Secure key used by caller for encryption/decryption.

Returns

Name	Type	Description
result	bytes	Output after encryption/decryption of given data.

encryptedData

function encryptedData(uint256) external view returns (bytes)

Parameters

Name	Type	Description
_0	uint256	undefined

Returns

Name	Type	Description
_0	bytes	undefined

getApproved

function getApproved(uint256 tokenId) external view returns (address)

See {IERC721-getApproved}.

Parameters

Name	Type	Description
tokenId	uint256	undefined

Returns

Name	Type	Description
_0	address	undefined

getBaseURICount

function getBaseURICount() external view returns (uint256)

Returns the count of batches of NFTs.

Each batch of tokens has an in ID and an associated baseURI. See {batchIds}.

Returns

Name	Type	Description
_0	uint256	undefined

getBatchIdAtIndex

function getBatchIdAtIndex(uint256 _index) external view returns (uint256)

Returns the ID for the batch of tokens the given tokenId belongs to.

See {getBaseURICount}.

Parameters

Name	Type	Description
_index	uint256	ID of a token.

Returns

Name	Type	Description
_0	uint256	undefined

getDefaultRoyaltyInfo

function getDefaultRoyaltyInfo() external view returns (address, uint16)

Returns the defualt royalty recipient and BPS for this contract's NFTs.

Returns

Name	Type	Description
_0	address	undefined
_1	uint16	undefined

getRevealURI

function getRevealURI(uint256 _batchId, bytes _key) external view returns (string revealedURI)

Returns revealed URI for a batch of NFTs.

Reveal encrypted base URI for _batchId with caller/admin's _key used for encryption. Reverts if there's no encrypted URI for _batchId. See {encryptDecrypt}.

Parameters

Name	Type	Description
_batchId	uint256	ID of the batch for which URI is being revealed.
_key	bytes	Secure key used by caller/admin for encryption of baseURI.

Returns

Name	Type	Description
revealedURI	string	Decrypted base URI.

getRoyaltyInfoForToken

function getRoyaltyInfoForToken(uint256 _tokenId) external view returns (address, uint16)

View royalty info for a given token.

Returns royalty recipient and bps for _tokenId.

Parameters

Name	Type	Description
_tokenId	uint256	The tokenID of the NFT for which to query royalty info.

Returns

Name	Type	Description
_0	address	undefined
_1	uint16	undefined

getSupplyClaimedByWallet

function getSupplyClaimedByWallet(address _claimer) external view returns (uint256)

Returns the supply claimed by claimer for active conditionId.

Parameters

Name	Type	Description
_claimer	address	undefined

Returns

Name	Type	Description
_0	uint256	undefined

isApprovedForAll

function isApprovedForAll(address owner, address operator) external view returns (bool)

See {IERC721-isApprovedForAll}.

Parameters

Name	Type	Description
owner	address	undefined
operator	address	undefined

Returns

Name	Type	Description
_0	bool	undefined

isEncryptedBatch

function isEncryptedBatch(uint256 _batchId) external view returns (bool)

Returns whether the relvant batch of NFTs is subject to a delayed reveal.

Returns true if _batchId's base URI is encrypted.

Parameters

Name	Type	Description
_batchId	uint256	ID of a batch of NFTs.

Returns

Name	Type	Description
_0	bool	undefined

lazyMint

function lazyMint(uint256 _amount, string _baseURIForTokens, bytes _data) external nonpayable returns (uint256 batchId)

Lets an authorized address lazy mint a given amount of NFTs.

Parameters

Name	Type	Description
_amount	uint256	The number of NFTs to lazy mint.
_baseURIForTokens	string	The placeholder base URI for the 'n' number of NFTs being lazy minted, where the metadata for each of those NFTs is ${baseURIForTokens}/${tokenId}.
_data	bytes	The encrypted base URI + provenance hash for the batch of NFTs being lazy minted.

Returns

Name	Type	Description
batchId	uint256	A unique integer identifier for the batch of NFTs lazy minted together.

multicall

function multicall(bytes[] data) external nonpayable returns (bytes[] results)

Receives and executes a batch of function calls on this contract.

Receives and executes a batch of function calls on this contract.

Parameters

Name	Type	Description
data	bytes[]	The bytes data that makes up the batch of function calls to execute.

Returns

Name	Type	Description
results	bytes[]	The bytes data that makes up the result of the batch of function calls executed.

name

function name() external view returns (string)

See {IERC721Metadata-name}.

Returns

Name	Type	Description
_0	string	undefined

nextTokenIdToClaim

function nextTokenIdToClaim() external view returns (uint256)

The tokenId assigned to the next new NFT to be claimed.

Returns

Name	Type	Description
_0	uint256	undefined

nextTokenIdToMint

function nextTokenIdToMint() external view returns (uint256)

The tokenId assigned to the next new NFT to be lazy minted.

Returns

Name	Type	Description
_0	uint256	undefined

operatorRestriction

function operatorRestriction() external view returns (bool)

Returns

Name	Type	Description
_0	bool	undefined

owner

function owner() external view returns (address)

Returns the owner of the contract.

Returns

Name	Type	Description
_0	address	undefined

ownerOf

function ownerOf(uint256 tokenId) external view returns (address)

See {IERC721-ownerOf}.

Parameters

Name	Type	Description
tokenId	uint256	undefined

Returns

Name	Type	Description
_0	address	undefined

primarySaleRecipient

function primarySaleRecipient() external view returns (address)

Returns primary sale recipient address.

Returns

Name	Type	Description
_0	address	undefined

reveal

function reveal(uint256 _index, bytes _key) external nonpayable returns (string revealedURI)

Lets an authorized address reveal a batch of delayed reveal NFTs.

Parameters

Name	Type	Description
_index	uint256	The ID for the batch of delayed-reveal NFTs to reveal.
_key	bytes	The key with which the base URI for the relevant batch of NFTs was encrypted.

Returns

Name	Type	Description
revealedURI	string	undefined

royaltyInfo

function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount)

View royalty info for a given token and sale price.

Returns royalty amount and recipient for tokenId and salePrice.

Parameters

Name	Type	Description
tokenId	uint256	The tokenID of the NFT for which to query royalty info.
salePrice	uint256	Sale price of the token.

Returns

Name	Type	Description
receiver	address	Address of royalty recipient account.
royaltyAmount	uint256	Royalty amount calculated at current royaltyBps value.

safeTransferFrom

function safeTransferFrom(address from, address to, uint256 tokenId) external nonpayable

See {ERC721-_safeTransferFrom}.

Parameters

Name	Type	Description
from	address	undefined
to	address	undefined
tokenId	uint256	undefined

safeTransferFrom

function safeTransferFrom(address from, address to, uint256 tokenId, bytes data) external nonpayable

See {ERC721-_safeTransferFrom}.

Parameters

Name	Type	Description
from	address	undefined
to	address	undefined
tokenId	uint256	undefined
data	bytes	undefined

setApprovalForAll

function setApprovalForAll(address operator, bool approved) external nonpayable

See {ERC721-setApprovalForAll}.

Parameters

Name	Type	Description
operator	address	undefined
approved	bool	undefined

setClaimConditions

function setClaimConditions(IClaimCondition.ClaimCondition _condition, bool _resetClaimEligibility) external nonpayable

Parameters

Name	Type	Description
_condition	IClaimCondition.ClaimCondition	undefined
_resetClaimEligibility	bool	undefined

setContractURI

function setContractURI(string _uri) external nonpayable

Lets a contract admin set the URI for contract-level metadata.

Caller should be authorized to setup contractURI, e.g. contract admin. See {_canSetContractURI}. Emits {ContractURIUpdated Event}.

Parameters

Name	Type	Description
_uri	string	keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")

setDefaultRoyaltyInfo

function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external nonpayable

Updates default royalty recipient and bps.

Caller should be authorized to set royalty info. See {_canSetRoyaltyInfo}. Emits {DefaultRoyalty Event}; See {_setupDefaultRoyaltyInfo}.

Parameters

Name	Type	Description
_royaltyRecipient	address	Address to be set as default royalty recipient.
_royaltyBps	uint256	Updated royalty bps.

setOperatorRestriction

function setOperatorRestriction(bool _restriction) external nonpayable

Parameters

Name	Type	Description
_restriction	bool	undefined

setOwner

function setOwner(address _newOwner) external nonpayable

Lets an authorized wallet set a new owner for the contract.

Parameters

Name	Type	Description
_newOwner	address	The address to set as the new owner of the contract.

setPrimarySaleRecipient

function setPrimarySaleRecipient(address _saleRecipient) external nonpayable

Updates primary sale recipient.

Caller should be authorized to set primary sales info. See {_canSetPrimarySaleRecipient}. Emits {PrimarySaleRecipientUpdated Event}; See {_setupPrimarySaleRecipient}.

Parameters

Name	Type	Description
_saleRecipient	address	Address to be set as new recipient of primary sales.

setRoyaltyInfoForToken

function setRoyaltyInfoForToken(uint256 _tokenId, address _recipient, uint256 _bps) external nonpayable

Updates default royalty recipient and bps for a particular token.

Sets royalty info for _tokenId. Caller should be authorized to set royalty info. See {_canSetRoyaltyInfo}. Emits {RoyaltyForToken Event}; See {_setupRoyaltyInfoForToken}.

Parameters

Name	Type	Description
_tokenId	uint256	undefined
_recipient	address	Address to be set as royalty recipient for given token Id.
_bps	uint256	Updated royalty bps for the token Id.

supportsInterface

function supportsInterface(bytes4 interfaceId) external view returns (bool)

See ERC165: https://eips.ethereum.org/EIPS/eip-165

Parameters

Name	Type	Description
interfaceId	bytes4	undefined

Returns

Name	Type	Description
_0	bool	undefined

symbol

function symbol() external view returns (string)

See {IERC721Metadata-symbol}.

Returns

Name	Type	Description
_0	string	undefined

tokenURI

function tokenURI(uint256 _tokenId) external view returns (string)

Returns the metadata URI for an NFT.

See BatchMintMetadata for handling of metadata in this contract.

Parameters

Name	Type	Description
_tokenId	uint256	The tokenId of an NFT.

Returns

Name	Type	Description
_0	string	undefined

totalSupply

function totalSupply() external view returns (uint256)

Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.

Returns

Name	Type	Description
_0	uint256	undefined

transferFrom

function transferFrom(address from, address to, uint256 tokenId) external nonpayable

See {ERC721-_transferFrom}.

Parameters

Name	Type	Description
from	address	undefined
to	address	undefined
tokenId	uint256	undefined

verifyClaim

function verifyClaim(address _claimer, uint256 _quantity, address _currency, uint256 _pricePerToken, IDropSinglePhase.AllowlistProof _allowlistProof) external view returns (bool isOverride)

Parameters

Name	Type	Description
_claimer	address	undefined
_quantity	uint256	undefined
_currency	address	undefined
_pricePerToken	uint256	undefined
_allowlistProof	IDropSinglePhase.AllowlistProof	undefined

Returns

Name	Type	Description
isOverride	bool	undefined

Events

Approval

event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId)

Parameters

Name	Type	Description
owner indexed	address	undefined
approved indexed	address	undefined
tokenId indexed	uint256	undefined

ApprovalForAll

event ApprovalForAll(address indexed owner, address indexed operator, bool approved)

Parameters

Name	Type	Description
owner indexed	address	undefined
operator indexed	address	undefined
approved	bool	undefined

ClaimConditionUpdated

event ClaimConditionUpdated(IClaimCondition.ClaimCondition condition, bool resetEligibility)

Emitted when the contract's claim conditions are updated.

Parameters

Name	Type	Description
condition	IClaimCondition.ClaimCondition	undefined
resetEligibility	bool	undefined

ContractURIUpdated

event ContractURIUpdated(string prevURI, string newURI)

Parameters

Name	Type	Description
prevURI	string	undefined
newURI	string	undefined

DefaultRoyalty

event DefaultRoyalty(address indexed newRoyaltyRecipient, uint256 newRoyaltyBps)

Parameters

Name	Type	Description
newRoyaltyRecipient indexed	address	undefined
newRoyaltyBps	uint256	undefined

OperatorRestriction

event OperatorRestriction(bool restriction)

Parameters

Name	Type	Description
restriction	bool	undefined

OwnerUpdated

event OwnerUpdated(address indexed prevOwner, address indexed newOwner)

Parameters

Name	Type	Description
prevOwner indexed	address	undefined
newOwner indexed	address	undefined

PrimarySaleRecipientUpdated

event PrimarySaleRecipientUpdated(address indexed recipient)

Parameters

Name	Type	Description
recipient indexed	address	undefined

RoyaltyForToken

event RoyaltyForToken(uint256 indexed tokenId, address indexed royaltyRecipient, uint256 royaltyBps)

Parameters

Name	Type	Description
tokenId indexed	uint256	undefined
royaltyRecipient indexed	address	undefined
royaltyBps	uint256	undefined

TokenURIRevealed

event TokenURIRevealed(uint256 indexed index, string revealedURI)

Parameters

Name	Type	Description
index indexed	uint256	undefined
revealedURI	string	undefined

TokensClaimed

event TokensClaimed(address indexed claimer, address indexed receiver, uint256 indexed startTokenId, uint256 quantityClaimed)

Emitted when tokens are claimed via claim.

Parameters

Name	Type	Description
claimer indexed	address	undefined
receiver indexed	address	undefined
startTokenId indexed	uint256	undefined
quantityClaimed	uint256	undefined

TokensLazyMinted

event TokensLazyMinted(uint256 indexed startTokenId, uint256 endTokenId, string baseURI, bytes encryptedBaseURI)

Parameters

Name	Type	Description
startTokenId indexed	uint256	undefined
endTokenId	uint256	undefined
baseURI	string	undefined
encryptedBaseURI	bytes	undefined

Transfer

event Transfer(address indexed from, address indexed to, uint256 indexed tokenId)

Parameters

Name	Type	Description
from indexed	address	undefined
to indexed	address	undefined
tokenId indexed	uint256	undefined

Errors

ApprovalCallerNotOwnerNorApproved

error ApprovalCallerNotOwnerNorApproved()

The caller must own the token or be an approved operator.

ApprovalQueryForNonexistentToken

error ApprovalQueryForNonexistentToken()

The token does not exist.

ApprovalToCurrentOwner

error ApprovalToCurrentOwner()

The caller cannot approve to the current owner.

ApproveToCaller

error ApproveToCaller()

The caller cannot approve to their own address.

BalanceQueryForZeroAddress

error BalanceQueryForZeroAddress()

Cannot query the balance for the zero address.

MintToZeroAddress

error MintToZeroAddress()

Cannot mint to the zero address.

MintZeroQuantity

error MintZeroQuantity()

The quantity of tokens minted must be more than zero.

OperatorNotAllowed

error OperatorNotAllowed(address operator)

Parameters

Name	Type	Description
operator	address	undefined

OwnerQueryForNonexistentToken

error OwnerQueryForNonexistentToken()

The token does not exist.

TransferCallerNotOwnerNorApproved

error TransferCallerNotOwnerNorApproved()

The caller must own the token or be an approved operator.

TransferFromIncorrectOwner

error TransferFromIncorrectOwner()

The token must be owned by from.

TransferToNonERC721ReceiverImplementer

error TransferToNonERC721ReceiverImplementer()

Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.

TransferToZeroAddress

error TransferToZeroAddress()

Cannot transfer to the zero address.

URIQueryForNonexistentToken

error URIQueryForNonexistentToken()

The token does not exist.