Uniques¶

Calls¶

approve_transfer¶

See [Pallet::approve_transfer].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
delegate	`AccountIdLookupOf<T>`

Python¶

call = substrate.compose_call(
    'Uniques', 'approve_transfer', {
    'collection': 'u32',
    'delegate': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'item': 'u32',
}
)

burn¶

See [Pallet::burn].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
check_owner	`Option<AccountIdLookupOf<T>>`

Python¶

call = substrate.compose_call(
    'Uniques', 'burn', {
    'check_owner': (
        None,
        {
            'Address20': '[u8; 20]',
            'Address32': '[u8; 32]',
            'Id': 'AccountId',
            'Index': (),
            'Raw': 'Bytes',
        },
    ),
    'collection': 'u32',
    'item': 'u32',
}
)

buy_item¶

See [Pallet::buy_item].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
bid_price	`ItemPrice<T, I>`

Python¶

call = substrate.compose_call(
    'Uniques', 'buy_item', {
    'bid_price': 'u128',
    'collection': 'u32',
    'item': 'u32',
}
)

cancel_approval¶

See [Pallet::cancel_approval].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
maybe_check_delegate	`Option<AccountIdLookupOf<T>>`

Python¶

call = substrate.compose_call(
    'Uniques', 'cancel_approval', {
    'collection': 'u32',
    'item': 'u32',
    'maybe_check_delegate': (
        None,
        {
            'Address20': '[u8; 20]',
            'Address32': '[u8; 32]',
            'Id': 'AccountId',
            'Index': (),
            'Raw': 'Bytes',
        },
    ),
}
)

clear_attribute¶

See [Pallet::clear_attribute].

Attributes¶

Name	Type
collection	`T::CollectionId`
maybe_item	`Option<T::ItemId>`
key	`BoundedVec<u8, T::KeyLimit>`

Python¶

call = substrate.compose_call(
    'Uniques', 'clear_attribute', {
    'collection': 'u32',
    'key': 'Bytes',
    'maybe_item': (None, 'u32'),
}
)

clear_collection_metadata¶

See [Pallet::clear_collection_metadata].

Attributes¶

Name	Type
collection	`T::CollectionId`

Python¶

call = substrate.compose_call(
    'Uniques', 'clear_collection_metadata', {'collection': 'u32'}
)

clear_metadata¶

See [Pallet::clear_metadata].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`

Python¶

call = substrate.compose_call(
    'Uniques', 'clear_metadata', {'collection': 'u32', 'item': 'u32'}
)

create¶

See [Pallet::create].

Attributes¶

Name	Type
collection	`T::CollectionId`
admin	`AccountIdLookupOf<T>`

Python¶

call = substrate.compose_call(
    'Uniques', 'create', {
    'admin': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'collection': 'u32',
}
)

destroy¶

See [Pallet::destroy].

Attributes¶

Name	Type
collection	`T::CollectionId`
witness	`DestroyWitness`

Python¶

call = substrate.compose_call(
    'Uniques', 'destroy', {
    'collection': 'u32',
    'witness': {
        'attributes': 'u32',
        'item_metadatas': 'u32',
        'items': 'u32',
    },
}
)

force_create¶

See [Pallet::force_create].

Attributes¶

Name	Type
collection	`T::CollectionId`
owner	`AccountIdLookupOf<T>`
free_holding	`bool`

Python¶

call = substrate.compose_call(
    'Uniques', 'force_create', {
    'collection': 'u32',
    'free_holding': 'bool',
    'owner': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
}
)

force_item_status¶

See [Pallet::force_item_status].

Attributes¶

Name	Type
collection	`T::CollectionId`
owner	`AccountIdLookupOf<T>`
issuer	`AccountIdLookupOf<T>`
admin	`AccountIdLookupOf<T>`
freezer	`AccountIdLookupOf<T>`
free_holding	`bool`
is_frozen	`bool`

Python¶

call = substrate.compose_call(
    'Uniques', 'force_item_status', {
    'admin': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'collection': 'u32',
    'free_holding': 'bool',
    'freezer': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'is_frozen': 'bool',
    'issuer': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'owner': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
}
)

freeze¶

See [Pallet::freeze].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`

Python¶

call = substrate.compose_call(
    'Uniques', 'freeze', {'collection': 'u32', 'item': 'u32'}
)

freeze_collection¶

See [Pallet::freeze_collection].

Attributes¶

Name	Type
collection	`T::CollectionId`

Python¶

call = substrate.compose_call(
    'Uniques', 'freeze_collection', {'collection': 'u32'}
)

mint¶

See [Pallet::mint].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
owner	`AccountIdLookupOf<T>`

Python¶

call = substrate.compose_call(
    'Uniques', 'mint', {
    'collection': 'u32',
    'item': 'u32',
    'owner': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
}
)

redeposit¶

See [Pallet::redeposit].

Attributes¶

Name	Type
collection	`T::CollectionId`
items	`Vec<T::ItemId>`

Python¶

call = substrate.compose_call(
    'Uniques', 'redeposit', {'collection': 'u32', 'items': ['u32']}
)

set_accept_ownership¶

See [Pallet::set_accept_ownership].

Attributes¶

Name	Type
maybe_collection	`Option<T::CollectionId>`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_accept_ownership', {'maybe_collection': (None, 'u32')}
)

set_attribute¶

See [Pallet::set_attribute].

Attributes¶

Name	Type
collection	`T::CollectionId`
maybe_item	`Option<T::ItemId>`
key	`BoundedVec<u8, T::KeyLimit>`
value	`BoundedVec<u8, T::ValueLimit>`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_attribute', {
    'collection': 'u32',
    'key': 'Bytes',
    'maybe_item': (None, 'u32'),
    'value': 'Bytes',
}
)

set_collection_max_supply¶

See [Pallet::set_collection_max_supply].

Attributes¶

Name	Type
collection	`T::CollectionId`
max_supply	`u32`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_collection_max_supply', {
    'collection': 'u32',
    'max_supply': 'u32',
}
)

set_collection_metadata¶

See [Pallet::set_collection_metadata].

Attributes¶

Name	Type
collection	`T::CollectionId`
data	`BoundedVec<u8, T::StringLimit>`
is_frozen	`bool`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_collection_metadata', {
    'collection': 'u32',
    'data': 'Bytes',
    'is_frozen': 'bool',
}
)

set_metadata¶

See [Pallet::set_metadata].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
data	`BoundedVec<u8, T::StringLimit>`
is_frozen	`bool`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_metadata', {
    'collection': 'u32',
    'data': 'Bytes',
    'is_frozen': 'bool',
    'item': 'u32',
}
)

set_price¶

See [Pallet::set_price].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
price	`Option<ItemPrice<T, I>>`
whitelisted_buyer	`Option<AccountIdLookupOf<T>>`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_price', {
    'collection': 'u32',
    'item': 'u32',
    'price': (None, 'u128'),
    'whitelisted_buyer': (
        None,
        {
            'Address20': '[u8; 20]',
            'Address32': '[u8; 32]',
            'Id': 'AccountId',
            'Index': (),
            'Raw': 'Bytes',
        },
    ),
}
)

set_team¶

See [Pallet::set_team].

Attributes¶

Name	Type
collection	`T::CollectionId`
issuer	`AccountIdLookupOf<T>`
admin	`AccountIdLookupOf<T>`
freezer	`AccountIdLookupOf<T>`

Python¶

call = substrate.compose_call(
    'Uniques', 'set_team', {
    'admin': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'collection': 'u32',
    'freezer': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'issuer': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
}
)

thaw¶

See [Pallet::thaw].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`

Python¶

call = substrate.compose_call(
    'Uniques', 'thaw', {'collection': 'u32', 'item': 'u32'}
)

thaw_collection¶

See [Pallet::thaw_collection].

Attributes¶

Name	Type
collection	`T::CollectionId`

Python¶

call = substrate.compose_call(
    'Uniques', 'thaw_collection', {'collection': 'u32'}
)

transfer¶

See [Pallet::transfer].

Attributes¶

Name	Type
collection	`T::CollectionId`
item	`T::ItemId`
dest	`AccountIdLookupOf<T>`

Python¶

call = substrate.compose_call(
    'Uniques', 'transfer', {
    'collection': 'u32',
    'dest': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
    'item': 'u32',
}
)

transfer_ownership¶

See [Pallet::transfer_ownership].

Attributes¶

Name	Type
collection	`T::CollectionId`
owner	`AccountIdLookupOf<T>`

Python¶

call = substrate.compose_call(
    'Uniques', 'transfer_ownership', {
    'collection': 'u32',
    'owner': {
        'Address20': '[u8; 20]',
        'Address32': '[u8; 32]',
        'Id': 'AccountId',
        'Index': (),
        'Raw': 'Bytes',
    },
}
)

Events¶

ApprovalCancelled¶

An approval for a delegate account to transfer the item of an item collection was cancelled by its owner.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
owner	`T::AccountId`	`AccountId`
delegate	`T::AccountId`	`AccountId`

ApprovedTransfer¶

An item of a collection has been approved by the owner for transfer by a delegate.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
owner	`T::AccountId`	`AccountId`
delegate	`T::AccountId`	`AccountId`

AttributeCleared¶

Attribute metadata has been cleared for a collection or item.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
maybe_item	`Option<T::ItemId>`	`(None, 'u32')`
key	`BoundedVec<u8, T::KeyLimit>`	`Bytes`

AttributeSet¶

New attribute metadata has been set for a collection or item.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
maybe_item	`Option<T::ItemId>`	`(None, 'u32')`
key	`BoundedVec<u8, T::KeyLimit>`	`Bytes`
value	`BoundedVec<u8, T::ValueLimit>`	`Bytes`

Burned¶

An item was destroyed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
owner	`T::AccountId`	`AccountId`

CollectionFrozen¶

Some collection was frozen.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`

CollectionMaxSupplySet¶

Max supply has been set for a collection.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
max_supply	`u32`	`u32`

CollectionMetadataCleared¶

Metadata has been cleared for a collection.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`

CollectionMetadataSet¶

New metadata has been set for a collection.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
data	`BoundedVec<u8, T::StringLimit>`	`Bytes`
is_frozen	`bool`	`bool`

CollectionThawed¶

Some collection was thawed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`

Created¶

A collection was created.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
creator	`T::AccountId`	`AccountId`
owner	`T::AccountId`	`AccountId`

Destroyed¶

A collection was destroyed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`

ForceCreated¶

A collection was force-created.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
owner	`T::AccountId`	`AccountId`

Frozen¶

Some item was frozen.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`

Issued¶

An item was issued.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
owner	`T::AccountId`	`AccountId`

ItemBought¶

An item was bought.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
price	`ItemPrice<T, I>`	`u128`
seller	`T::AccountId`	`AccountId`
buyer	`T::AccountId`	`AccountId`

ItemPriceRemoved¶

The price for the instance was removed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`

ItemPriceSet¶

The price was set for the instance.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
price	`ItemPrice<T, I>`	`u128`
whitelisted_buyer	`Option<T::AccountId>`	`(None, 'AccountId')`

ItemStatusChanged¶

A collection has had its attributes changed by the Force origin.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`

MetadataCleared¶

Metadata has been cleared for an item.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`

MetadataSet¶

New metadata has been set for an item.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
data	`BoundedVec<u8, T::StringLimit>`	`Bytes`
is_frozen	`bool`	`bool`

OwnerChanged¶

The owner changed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
new_owner	`T::AccountId`	`AccountId`

OwnershipAcceptanceChanged¶

Ownership acceptance has changed for an account.

Attributes¶

Name	Type	Composition
who	`T::AccountId`	`AccountId`
maybe_collection	`Option<T::CollectionId>`	`(None, 'u32')`

Redeposited¶

Metadata has been cleared for an item.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
successful_items	`Vec<T::ItemId>`	`['u32']`

TeamChanged¶

The management team changed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
issuer	`T::AccountId`	`AccountId`
admin	`T::AccountId`	`AccountId`
freezer	`T::AccountId`	`AccountId`

Thawed¶

Some item was thawed.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`

Transferred¶

An item was transferred.

Attributes¶

Name	Type	Composition
collection	`T::CollectionId`	`u32`
item	`T::ItemId`	`u32`
from	`T::AccountId`	`AccountId`
to	`T::AccountId`	`AccountId`

Storage functions¶

Account¶

The items held by any given account; set out this way so that items owned by a single account can be enumerated.

Python¶

result = substrate.query(
    'Uniques', 'Account', ['AccountId', 'u32', 'u32']
)

Return value¶

()

Asset¶

The items in existence and their ownership details.

Python¶

result = substrate.query(
    'Uniques', 'Asset', ['u32', 'u32']
)

Return value¶

{'approved': (None, 'AccountId'), 'deposit': 'u128', 'is_frozen': 'bool', 'owner': 'AccountId'}

Attribute¶

Attributes of a collection.

Python¶

result = substrate.query(
    'Uniques', 'Attribute', ['u32', (None, 'u32'), 'Bytes']
)

Return value¶

('Bytes', 'u128')

Class¶

Details of a collection.

Python¶

result = substrate.query(
    'Uniques', 'Class', ['u32']
)

Return value¶

{
    'admin': 'AccountId',
    'attributes': 'u32',
    'free_holding': 'bool',
    'freezer': 'AccountId',
    'is_frozen': 'bool',
    'issuer': 'AccountId',
    'item_metadatas': 'u32',
    'items': 'u32',
    'owner': 'AccountId',
    'total_deposit': 'u128',
}

ClassAccount¶

The collections owned by any given account; set out this way so that collections owned by a single account can be enumerated.

Python¶

result = substrate.query(
    'Uniques', 'ClassAccount', ['AccountId', 'u32']
)

Return value¶

()

ClassMetadataOf¶

Metadata of a collection.

Python¶

result = substrate.query(
    'Uniques', 'ClassMetadataOf', ['u32']
)

Return value¶

{'data': 'Bytes', 'deposit': 'u128', 'is_frozen': 'bool'}

CollectionMaxSupply¶

Keeps track of the number of items a collection might have.

Python¶

result = substrate.query(
    'Uniques', 'CollectionMaxSupply', ['u32']
)

Return value¶

'u32'

InstanceMetadataOf¶

Metadata of an item.

Python¶

result = substrate.query(
    'Uniques', 'InstanceMetadataOf', ['u32', 'u32']
)

Return value¶

{'data': 'Bytes', 'deposit': 'u128', 'is_frozen': 'bool'}

ItemPriceOf¶

Price of an asset instance.

Python¶

result = substrate.query(
    'Uniques', 'ItemPriceOf', ['u32', 'u32']
)

Return value¶

('u128', (None, 'AccountId'))

OwnershipAcceptance¶

The collection, if any, of which an account is willing to take ownership.

Python¶

result = substrate.query(
    'Uniques', 'OwnershipAcceptance', ['AccountId']
)

Return value¶

'u32'

Constants¶

AttributeDepositBase¶

The basic amount of funds that must be reserved when adding an attribute to an item.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'AttributeDepositBase')

CollectionDeposit¶

The basic amount of funds that must be reserved for collection.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'CollectionDeposit')

DepositPerByte¶

The additional funds that must be reserved for the number of bytes store in metadata, either "normal" metadata or attribute metadata.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'DepositPerByte')

ItemDeposit¶

The basic amount of funds that must be reserved for an item.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'ItemDeposit')

KeyLimit¶

The maximum length of an attribute key.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'KeyLimit')

MetadataDepositBase¶

The basic amount of funds that must be reserved when adding metadata to your item.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'MetadataDepositBase')

StringLimit¶

The maximum length of data stored on-chain.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'StringLimit')

ValueLimit¶

The maximum length of an attribute value.

Value¶

Python¶

constant = substrate.get_constant('Uniques', 'ValueLimit')

Errors¶

AlreadyExists¶

The item ID has already been used for an item.

BadWitness¶

Invalid witness data given.

BidTooLow¶

The provided bid is too low.

Frozen¶

The item or collection is frozen.

InUse¶

The item ID is already taken.

Locked¶

The item is locked.

MaxSupplyAlreadySet¶

The max supply has already been set.

MaxSupplyReached¶

All items have been minted.

MaxSupplyTooSmall¶

The provided max supply is less to the amount of items a collection already has.

NoDelegate¶

There is no delegate approved.

NoPermission¶

The signing account has no permission to do the operation.

NotForSale¶

Item is not for sale.

Unaccepted¶

The named owner has not signed ownership of the collection is acceptable.

Unapproved¶

No approval exists that would allow the transfer.

UnknownCollection¶

The given item ID is unknown.

UnknownItem¶

The given item ID is unknown.

WrongDelegate¶

The delegate turned out to be different to what was expected.

WrongOwner¶

The owner turned out to be different to what was expected.