PublicCredentials¶

Calls¶

add¶

See [Pallet::add].

Attributes¶

Name	Type
credential	`Box<InputCredentialOf<T>>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'add', {
    'credential': {
        'authorization': (
            None,
            {
                'Delegation': {
                    'max_checks': 'u32',
                    'subject_node_id': 'scale_info::12',
                },
            },
        ),
        'claims': 'Bytes',
        'ctype_hash': 'scale_info::12',
        'subject': 'Bytes',
    },
}
)

change_deposit_owner¶

See [Pallet::change_deposit_owner].

Attributes¶

Name	Type
credential_id	`CredentialIdOf<T>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'change_deposit_owner', {'credential_id': 'scale_info::12'}
)

reclaim_deposit¶

See [Pallet::reclaim_deposit].

Attributes¶

Name	Type
credential_id	`CredentialIdOf<T>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'reclaim_deposit', {'credential_id': 'scale_info::12'}
)

remove¶

See [Pallet::remove].

Attributes¶

Name	Type
credential_id	`CredentialIdOf<T>`
authorization	`Option<T::AccessControl>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'remove', {
    'authorization': (
        None,
        {
            'Delegation': {
                'max_checks': 'u32',
                'subject_node_id': 'scale_info::12',
            },
        },
    ),
    'credential_id': 'scale_info::12',
}
)

revoke¶

See [Pallet::revoke].

Attributes¶

Name	Type
credential_id	`CredentialIdOf<T>`
authorization	`Option<T::AccessControl>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'revoke', {
    'authorization': (
        None,
        {
            'Delegation': {
                'max_checks': 'u32',
                'subject_node_id': 'scale_info::12',
            },
        },
    ),
    'credential_id': 'scale_info::12',
}
)

unrevoke¶

See [Pallet::unrevoke].

Attributes¶

Name	Type
credential_id	`CredentialIdOf<T>`
authorization	`Option<T::AccessControl>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'unrevoke', {
    'authorization': (
        None,
        {
            'Delegation': {
                'max_checks': 'u32',
                'subject_node_id': 'scale_info::12',
            },
        },
    ),
    'credential_id': 'scale_info::12',
}
)

update_deposit¶

See [Pallet::update_deposit].

Attributes¶

Name	Type
credential_id	`CredentialIdOf<T>`

Python¶

call = substrate.compose_call(
    'PublicCredentials', 'update_deposit', {'credential_id': 'scale_info::12'}
)

Events¶

CredentialRemoved¶

A public credentials has been removed.

Attributes¶

Name	Type	Composition
subject_id	`T::SubjectId`	`{'chain_id': {'Eip155': 'u128', 'Bip122': '[u8; 16]', 'Dotsama': '[u8; 16]', 'Solana': 'Bytes', 'Generic': {'namespace': 'Bytes', 'reference': 'Bytes'}}, 'asset_id': {'Slip44': 'scale_info::91', 'Erc20': '[u8; 20]', 'Erc721': ('[u8; 20]', (None, 'Bytes')), 'Erc1155': ('[u8; 20]', (None, 'Bytes')), 'Generic': {'namespace': 'Bytes', 'reference': 'Bytes', 'id': (None, 'Bytes')}}}`
credential_id	`CredentialIdOf<T>`	`scale_info::12`

CredentialRevoked¶

A public credential has been revoked.

Attributes¶

Name	Type	Composition
credential_id	`CredentialIdOf<T>`	`scale_info::12`

CredentialStored¶

A new public credential has been issued.

Attributes¶

Name	Type	Composition
subject_id	`T::SubjectId`	`{'chain_id': {'Eip155': 'u128', 'Bip122': '[u8; 16]', 'Dotsama': '[u8; 16]', 'Solana': 'Bytes', 'Generic': {'namespace': 'Bytes', 'reference': 'Bytes'}}, 'asset_id': {'Slip44': 'scale_info::91', 'Erc20': '[u8; 20]', 'Erc721': ('[u8; 20]', (None, 'Bytes')), 'Erc1155': ('[u8; 20]', (None, 'Bytes')), 'Generic': {'namespace': 'Bytes', 'reference': 'Bytes', 'id': (None, 'Bytes')}}}`
credential_id	`CredentialIdOf<T>`	`scale_info::12`

CredentialUnrevoked¶

A public credential has been unrevoked.

Attributes¶

Name	Type	Composition
credential_id	`CredentialIdOf<T>`	`scale_info::12`

Storage functions¶

CredentialSubjects¶

A reverse index mapping from credential ID to the subject the credential was issued to.

It it used to perform efficient lookup of credentials given their ID.

Python¶

result = substrate.query(
    'PublicCredentials', 'CredentialSubjects', ['scale_info::12']
)

Return value¶

{
    'asset_id': {
        'Erc1155': ('[u8; 20]', (None, 'Bytes')),
        'Erc20': '[u8; 20]',
        'Erc721': ('[u8; 20]', (None, 'Bytes')),
        'Generic': {'id': (None, 'Bytes'), 'namespace': 'Bytes', 'reference': 'Bytes'},
        'Slip44': 'scale_info::91',
    },
    'chain_id': {
        'Bip122': '[u8; 16]',
        'Dotsama': '[u8; 16]',
        'Eip155': 'u128',
        'Generic': {'namespace': 'Bytes', 'reference': 'Bytes'},
        'Solana': 'Bytes',
    },
}

Credentials¶

The map of public credentials already attested. It maps from a (subject id + credential id) -> the creation details of the credential.

Python¶

result = substrate.query(
    'PublicCredentials', 'Credentials', [
    {
        'asset_id': {
            'Erc1155': (
                '[u8; 20]',
                (None, 'Bytes'),
            ),
            'Erc20': '[u8; 20]',
            'Erc721': (
                '[u8; 20]',
                (None, 'Bytes'),
            ),
            'Generic': {
                'id': (None, 'Bytes'),
                'namespace': 'Bytes',
                'reference': 'Bytes',
            },
            'Slip44': 'scale_info::91',
        },
        'chain_id': {
            'Bip122': '[u8; 16]',
            'Dotsama': '[u8; 16]',
            'Eip155': 'u128',
            'Generic': {
                'namespace': 'Bytes',
                'reference': 'Bytes',
            },
            'Solana': 'Bytes',
        },
    },
    'scale_info::12',
]
)

Return value¶

{
    'attester': 'AccountId',
    'authorization_id': (None, {'Delegation': 'scale_info::12'}),
    'block_number': 'u64',
    'ctype_hash': 'scale_info::12',
    'deposit': {'amount': 'u128', 'owner': 'AccountId'},
    'revoked': 'bool',
}

Constants¶

Deposit¶

The amount of tokens to reserve when attesting a public credential.

Value¶

76950000000000

Python¶

constant = substrate.get_constant('PublicCredentials', 'Deposit')

MaxEncodedClaimsLength¶

The maximum length in bytes of the encoded claims of a credential.

Value¶

Python¶

constant = substrate.get_constant('PublicCredentials', 'MaxEncodedClaimsLength')

MaxSubjectIdLength¶

The maximum length in bytes of the raw credential subject identifier.

Value¶

Python¶

constant = substrate.get_constant('PublicCredentials', 'MaxSubjectIdLength')

Errors¶

AlreadyAttested¶

A credential with the same root hash has already issued to the specified subject.

Internal¶

Catch-all for any other errors that should not happen, yet it happened.

InvalidInput¶

The credential input is invalid.

NotAuthorized¶

The caller is not authorized to performed the operation.

NotFound¶

No credential with the specified root hash has been issued to the specified subject.

UnableToPayFees¶

Not enough tokens to pay for the fees or the deposit.