AttestationQueryFacet

Git Source

Facet for querying attestations in the AttestationRegistry diamond

Functions

getAttestation

Get an attestation by schema UID and subject

function getAttestation(bytes32 easUID, address subject) external view returns (Attestation memory);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address

Returns

Name	Type	Description
<none>	Attestation	Attestation The attestation with correct attester

getAttestationAtIndex

Get an attestation at a specific index in the history

function getAttestationAtIndex(bytes32 easUID, address subject, uint256 index)
    external
    view
    returns (Attestation memory);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address
index	uint256	The index in the attestation history

Returns

Name	Type	Description
<none>	Attestation	Attestation The attestation at the specified index

getAttestationHistory

Get the full attestation history for a subject and schema

function getAttestationHistory(bytes32 easUID, address subject)
    external
    view
    returns (bytes32[] memory uids, uint256[] memory timestamps, bool[] memory activeFlags);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address

Returns

Name	Type	Description
uids	bytes32[]	Array of attestation UIDs
timestamps	uint256[]	Array of creation timestamps
activeFlags	bool[]	Array of active status flags

getAttestationByName

Get an attestation by schema name and subject

function getAttestationByName(string calldata schemaName, address subject) external view returns (Attestation memory);

Parameters

Name	Type	Description
schemaName	string	The human-readable schema name
subject	address	The subject address

Returns

Name	Type	Description
<none>	Attestation	Attestation The attestation

getDecodedAttestation

Get decoded attestation data as an array of values

function getDecodedAttestation(bytes32 easUID, address subject) external view returns (bytes[] memory values);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address

Returns

Name	Type	Description
values	bytes[]	Array of decoded values

getDecodedAttestationAtIndex

Get decoded attestation data at a specific index

function getDecodedAttestationAtIndex(bytes32 easUID, address subject, uint256 index)
    external
    view
    returns (bytes[] memory values);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address
index	uint256	The index in the attestation history

Returns

Name	Type	Description
values	bytes[]	Array of decoded values

isAttestationValid

Check if an attestation is valid for a subject and entity

function isAttestationValid(address subject, bytes32 easUID, address entity) external view returns (bool);

Parameters

Name	Type	Description
subject	address	The subject address
easUID	bytes32	The EAS schema UID
entity	address	The entity address

Returns

Name	Type	Description
<none>	bool	bool True if the attestation is valid

isAttestationValidByName

Check if an attestation is valid by schema name

function isAttestationValidByName(address subject, string calldata schemaName, address entity)
    external
    view
    returns (bool);

Parameters

Name	Type	Description
subject	address	The subject address
schemaName	string	The schema name
entity	address	The entity address

Returns

Name	Type	Description
<none>	bool	bool True if the attestation is valid

getAttestationHistoryCount

Get the count of attestations in history for a subject and schema

function getAttestationHistoryCount(bytes32 easUID, address subject) external view returns (uint256);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address

Returns

Name	Type	Description
<none>	uint256	uint256 The count of attestations

getLatestAttestationIndex

Get the latest active attestation index for a subject and schema

function getLatestAttestationIndex(bytes32 easUID, address subject) external view returns (uint256);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
subject	address	The subject address

Returns

Name	Type	Description
<none>	uint256	uint256 The latest attestation index

attestationRecords

Get attestation records mapping (for single attestations)

function attestationRecords(address subject, bytes32 easUID) external view returns (bytes32);

Parameters

Name	Type	Description
subject	address	The subject address
easUID	bytes32	The EAS schema UID

Returns

Name	Type	Description
<none>	bytes32	bytes32 The attestation UID

attestationAttester

Get attestation attester mapping

function attestationAttester(bytes32 attestationUID) external view returns (address);

Parameters

Name	Type	Description
attestationUID	bytes32	The attestation UID

Returns

Name	Type	Description
<none>	address	address The real attester address

validAttestors

Check if an attestor is valid for an entity

function validAttestors(address entity, address attestor) external view returns (bool);

Parameters

Name	Type	Description
entity	address	The entity address
attestor	address	The attestor address

Returns

Name	Type	Description
<none>	bool	bool True if the attestor is valid

escrowPayments

Get escrow payment amount for a subject and schema

function escrowPayments(address subject, bytes32 easUID) external view returns (uint256);

Parameters

Name	Type	Description
subject	address	The subject address
easUID	bytes32	The EAS schema UID

Returns

Name	Type	Description
<none>	uint256	uint256 The escrowed amount

nonces

Get nonce for an address

function nonces(address addr) external view returns (uint256);

Parameters

Name	Type	Description
addr	address	The address

Returns

Name	Type	Description
<none>	uint256	uint256 The current nonce

authorizedDelegators

Check if an address is an authorized delegator

function authorizedDelegators(address delegator) external view returns (bool);

Parameters

Name	Type	Description
delegator	address	The delegator address

Returns

Name	Type	Description
<none>	bool	bool True if authorized

eas

Get the EAS contract address

function eas() external view returns (IEAS);

Returns

Name	Type	Description
<none>	IEAS	IEAS The EAS contract

_decodeAttestationData

Decode attestation data based on schema field types

function _decodeAttestationData(bytes32 easUID, bytes memory data) internal view returns (bytes[] memory values);

Parameters

Name	Type	Description
easUID	bytes32	The EAS schema UID
data	bytes	The raw attestation data

Returns

Name	Type	Description
values	bytes[]	Array of decoded values