Nft¶

Calls¶

controller_transfer¶

Forces the transfer of NFTs from a given portfolio to the caller's portfolio.

# Arguments * origin - is a signer that has permissions to act as an agent of ticker. * ticker - the [Ticker] of the NFT collection. * nft_id - the [NFTId] of the NFT to be transferred. * source_portfolio - the [PortfolioId] that currently holds the NFT. * callers_portfolio_kind - the [PortfolioKind] of the caller's portfolio.

# Permissions * Asset * Portfolio

Attributes¶

Name	Type
ticker	`Ticker`
nfts	`NFTs`
source_portfolio	`PortfolioId`
callers_portfolio_kind	`PortfolioKind`

Python¶

call = substrate.compose_call(
    'Nft', 'controller_transfer', {
    'callers_portfolio_kind': {
        'Default': None,
        'User': 'u64',
    },
    'nfts': {
        'ids': ['u64'],
        'ticker': '[u8; 12]',
    },
    'source_portfolio': {
        'did': '[u8; 32]',
        'kind': {
            'Default': None,
            'User': 'u64',
        },
    },
    'ticker': '[u8; 12]',
}
)

create_nft_collection¶

Cretes a new NFTCollection.

# Arguments * origin - contains the secondary key of the caller (i.e. who signed the transaction to execute this function). * ticker - the ticker associated to the new collection. * nft_type - in case the asset hasn't been created yet, one will be created with the given type. * collection_keys - all mandatory metadata keys that the tokens in the collection must have.

## Errors - CollectionAlredyRegistered - if the ticker is already associated to an NFT collection. - InvalidAssetType - if the associated asset is not of type NFT. - MaxNumberOfKeysExceeded - if the number of metadata keys for the collection is greater than the maximum allowed. - UnregisteredMetadataKey - if any of the metadata keys needed for the collection has not been registered. - DuplicateMetadataKey - if a duplicate metadata keys has been passed as input.

# Permissions * Asset

Attributes¶

Name	Type
ticker	`Ticker`
nft_type	`Option<NonFungibleType>`
collection_keys	`NFTCollectionKeys`

Python¶

call = substrate.compose_call(
    'Nft', 'create_nft_collection', {
    'collection_keys': [
        {
            'Global': 'u64',
            'Local': 'u64',
        },
    ],
    'nft_type': (
        None,
        {
            'Custom': 'u32',
            'Derivative': None,
            'FixedIncome': None,
            'Invoice': None,
        },
    ),
    'ticker': '[u8; 12]',
}
)

issue_nft¶

Issues an NFT to the caller.

# Arguments * origin - is a signer that has permissions to act as an agent of ticker. * ticker - the ticker of the NFT collection. * nft_metadata_attributes - all mandatory metadata keys and values for the NFT. - portfolio_kind - the portfolio that will receive the minted nft.

## Errors - CollectionNotFound - if the collection associated to the given ticker has not been created. - InvalidMetadataAttribute - if the number of attributes is not equal to the number set in the collection or attempting to set a value for a key not definied in the collection. - DuplicateMetadataKey - if a duplicate metadata keys has been passed as input.

# Permissions * Asset * Portfolio

Attributes¶

Name	Type
ticker	`Ticker`
nft_metadata_attributes	`Vec<NFTMetadataAttribute>`
portfolio_kind	`PortfolioKind`

Python¶

call = substrate.compose_call(
    'Nft', 'issue_nft', {
    'nft_metadata_attributes': [
        {
            'key': {
                'Global': 'u64',
                'Local': 'u64',
            },
            'value': 'Bytes',
        },
    ],
    'portfolio_kind': {
        'Default': None,
        'User': 'u64',
    },
    'ticker': '[u8; 12]',
}
)

redeem_nft¶

Redeems the given NFT from the caller's portfolio.

# Arguments * origin - is a signer that has permissions to act as an agent of ticker. * ticker - the ticker of the NFT collection. * nft_id - the id of the NFT to be burned. * portfolio_kind - the portfolio that contains the nft.

## Errors - CollectionNotFound - if the collection associated to the given ticker has not been created. - NFTNotFound - if the given NFT does not exist in the portfolio.

# Permissions * Asset * Portfolio

Attributes¶

Name	Type
ticker	`Ticker`
nft_id	`NFTId`
portfolio_kind	`PortfolioKind`

Python¶

call = substrate.compose_call(
    'Nft', 'redeem_nft', {
    'nft_id': 'u64',
    'portfolio_kind': {
        'Default': None,
        'User': 'u64',
    },
    'ticker': '[u8; 12]',
}
)

Events¶

NFTPortfolioUpdated¶

Emitted when NFTs were issued, redeemed or transferred. Contains the [IdentityId] of the receiver/issuer/redeemer, the [NFTs], the [PortfolioId] of the source, the [PortfolioId] of the destination and the [PortfolioUpdateReason].

Attributes¶

Name	Type	Composition
None	`IdentityId`	`[u8; 32]`
None	`NFTs`	`{'ticker': '[u8; 12]', 'ids': ['u64']}`
None	`Option<PortfolioId>`	`(None, {'did': '[u8; 32]', 'kind': {'Default': None, 'User': 'u64'}})`
None	`Option<PortfolioId>`	`(None, {'did': '[u8; 32]', 'kind': {'Default': None, 'User': 'u64'}})`
None	`PortfolioUpdateReason`	`{'Issued': {'funding_round_name': (None, 'Bytes')}, 'Redeemed': None, 'Transferred': {'instruction_id': (None, 'u64'), 'instruction_memo': (None, '[u8; 32]')}, 'ControllerTransfer': None}`

NftCollectionCreated¶

Emitted when a new nft collection is created.

Attributes¶

Name	Type	Composition
None	`IdentityId`	`[u8; 32]`
None	`Ticker`	`[u8; 12]`
None	`NFTCollectionId`	`u64`

Storage functions¶

Collection¶

All collection details for a given collection id.

Python¶

result = substrate.query(
    'Nft', 'Collection', ['u64']
)

Return value¶

{'id': 'u64', 'ticker': '[u8; 12]'}

CollectionKeys¶

All mandatory metadata keys for a given collection.

Python¶

result = substrate.query(
    'Nft', 'CollectionKeys', ['u64']
)

Return value¶

'scale_info::730'

CollectionTicker¶

The collection id corresponding to each ticker.

Python¶

result = substrate.query(
    'Nft', 'CollectionTicker', ['[u8; 12]']
)

Return value¶

'u64'

MetadataValue¶

The metadata value of an nft given its collection id, token id and metadata key.

Python¶

result = substrate.query(
    'Nft', 'MetadataValue', [
    ('u64', 'u64'),
    {'Global': 'u64', 'Local': 'u64'},
]
)

Return value¶

'Bytes'

NFTOwner¶

Tracks the owner of an NFT

Python¶

result = substrate.query(
    'Nft', 'NFTOwner', ['[u8; 12]', 'u64']
)

Return value¶

{'did': '[u8; 32]', 'kind': {'Default': None, 'User': 'u64'}}

NFTsInCollection¶

The total number of NFTs in a collection

Python¶

result = substrate.query(
    'Nft', 'NFTsInCollection', ['[u8; 12]']
)

Return value¶

'u64'

NextCollectionId¶

The next available id for an NFT collection.

Python¶

result = substrate.query(
    'Nft', 'NextCollectionId', []
)

Return value¶

'u64'

NextNFTId¶

The next available id for an NFT within a collection.

Python¶

result = substrate.query(
    'Nft', 'NextNFTId', ['u64']
)

Return value¶

'u64'

NumberOfNFTs¶

The total number of NFTs per identity.

Python¶

result = substrate.query(
    'Nft', 'NumberOfNFTs', ['[u8; 12]', '[u8; 32]']
)

Return value¶

'u64'

StorageVersion¶

Storage version.

Python¶

result = substrate.query(
    'Nft', 'StorageVersion', []
)

Return value¶

'u8'

Constants¶

MaxNumberOfCollectionKeys¶

Value¶

Python¶

constant = substrate.get_constant('Nft', 'MaxNumberOfCollectionKeys')

MaxNumberOfNFTsCount¶

Value¶

Python¶

constant = substrate.get_constant('Nft', 'MaxNumberOfNFTsCount')

Errors¶

BalanceOverflow¶

An overflow while calculating the balance.

BalanceUnderflow¶

An underflow while calculating the balance.

CollectionAlredyRegistered¶

The ticker is already associated to an NFT collection.

CollectionNotFound¶

The NFT collection does not exist.

DuplicateMetadataKey¶

A duplicate metadata key has been passed as parameter.

DuplicatedNFTId¶

Duplicate ids are not allowed.

InvalidAssetType¶

The asset must be of type non-fungible.

InvalidMetadataAttribute¶

Either the number of keys or the key identifier does not match the keys defined for the collection.

InvalidNFTTransferCollectionNotFound¶

Failed to transfer an NFT - NFT collection not found.

InvalidNFTTransferComplianceFailure¶

Failed to transfer an NFT - compliance failed.

InvalidNFTTransferCountOverflow¶

Failed to transfer an NFT - identity count would overflow.

InvalidNFTTransferFrozenAsset¶

Failed to transfer an NFT - asset is frozen.

InvalidNFTTransferInsufficientCount¶

Failed to transfer an NFT - the number of nfts in the identity is insufficient.

InvalidNFTTransferNFTIsLocked¶

Failed to transfer an NFT - nft is locked.

InvalidNFTTransferNFTNotOwned¶

Failed to transfer an NFT - NFT not found in portfolio.

InvalidNFTTransferSamePortfolio¶

Failed to transfer an NFT - attempt to move to the same portfolio.

MaxNumberOfKeysExceeded¶

The maximum number of metadata keys was exceeded.

MaxNumberOfNFTsPerLegExceeded¶

The maximum number of nfts being transferred in one leg was exceeded.

NFTNotFound¶

The NFT does not exist.

SupplyOverflow¶

An overflow while calculating the updated supply.

SupplyUnderflow¶

An underflow while calculating the updated supply.

UnregisteredMetadataKey¶

At least one of the metadata keys has not been registered.

ZeroCount¶

It is not possible to transferr zero nft.