Marketplace

---

Calls

---

accept_offer

See [Pallet::accept_offer].

Attributes

Name	Type
collection_id	T::NftCollectionId
item_id	T::NftItemId
maker	T::AccountId

Python

call = substrate.compose_call(
    'Marketplace', 'accept_offer', {
    'collection_id': 'u128',
    'item_id': 'u128',
    'maker': 'AccountId',
}
)

---

add_royalty

See [Pallet::add_royalty].

Attributes

Name	Type
collection_id	T::NftCollectionId
item_id	T::NftItemId
author	T::AccountId
royalty	u16

Python

call = substrate.compose_call(
    'Marketplace', 'add_royalty', {
    'author': 'AccountId',
    'collection_id': 'u128',
    'item_id': 'u128',
    'royalty': 'u16',
}
)

---

buy

See [Pallet::buy].

Attributes

Name	Type
collection_id	T::NftCollectionId
item_id	T::NftItemId

Python

call = substrate.compose_call(
    'Marketplace', 'buy', {
    'collection_id': 'u128',
    'item_id': 'u128',
}
)

---

make_offer

See [Pallet::make_offer].

Attributes

Name	Type
collection_id	T::NftCollectionId
item_id	T::NftItemId
amount	BalanceOf<T>
expires	BlockNumberFor<T>

Python

call = substrate.compose_call(
    'Marketplace', 'make_offer', {
    'amount': 'u128',
    'collection_id': 'u128',
    'expires': 'u32',
    'item_id': 'u128',
}
)

---

set_price

See [Pallet::set_price].

Attributes

Name	Type
collection_id	T::NftCollectionId
item_id	T::NftItemId
new_price	Option<BalanceOf<T>>

Python

call = substrate.compose_call(
    'Marketplace', 'set_price', {
    'collection_id': 'u128',
    'item_id': 'u128',
    'new_price': (None, 'u128'),
}
)

---

withdraw_offer

See [Pallet::withdraw_offer].

Attributes

Name	Type
collection_id	T::NftCollectionId
item_id	T::NftItemId
maker	T::AccountId

Python

call = substrate.compose_call(
    'Marketplace', 'withdraw_offer', {
    'collection_id': 'u128',
    'item_id': 'u128',
    'maker': 'AccountId',
}
)

---

Events

---

OfferAccepted

Offer was accepted

Attributes

Name	Type	Composition
who	T::AccountId	AccountId
collection	T::NftCollectionId	u128
item	T::NftItemId	u128
amount	BalanceOf<T>	u128
maker	T::AccountId	AccountId

---

OfferPlaced

Offer was placed on a token

Attributes

Name	Type	Composition
who	T::AccountId	AccountId
collection	T::NftCollectionId	u128
item	T::NftItemId	u128
amount	BalanceOf<T>	u128
expires	BlockNumberFor<T>	u32

---

OfferWithdrawn

Offer was withdrawn

Attributes

Name	Type	Composition
who	T::AccountId	AccountId
collection	T::NftCollectionId	u128
item	T::NftItemId	u128

---

RoyaltyAdded

Marketplace data has been added

Attributes

Name	Type	Composition
collection	T::NftCollectionId	u128
item	T::NftItemId	u128
author	T::AccountId	AccountId
royalty	u16	u16

---

RoyaltyPaid

Royalty hs been paid to the author

Attributes

Name	Type	Composition
collection	T::NftCollectionId	u128
item	T::NftItemId	u128
author	T::AccountId	AccountId
royalty	u16	u16
royalty_amount	BalanceOf<T>	u128

---

TokenPriceUpdated

The price for a token was updated

Attributes

Name	Type	Composition
who	T::AccountId	AccountId
collection	T::NftCollectionId	u128
item	T::NftItemId	u128
price	Option<BalanceOf<T>>	(None, 'u128')

---

TokenSold

Token was sold to a new owner

Attributes

Name	Type	Composition
owner	T::AccountId	AccountId
buyer	T::AccountId	AccountId
collection	T::NftCollectionId	u128
item	T::NftItemId	u128
price	BalanceOf<T>	u128

---

Storage functions

---

MarketplaceItems

Stores Marketplace info

Python

result = substrate.query(
    'Marketplace', 'MarketplaceItems', ['u128', 'u128']
)

Return value

{'author': 'AccountId', 'royalty': 'u16'}

---

Offers

Stores offer info

Python

result = substrate.query(
    'Marketplace', 'Offers', [('u128', 'u128'), 'AccountId']
)

Return value

{'amount': 'u128', 'expires': 'u32', 'maker': 'AccountId'}

---

Prices

Stores token info

Python

result = substrate.query(
    'Marketplace', 'Prices', ['u128', 'u128']
)

Return value

'u128'

---

Constants

---

MinimumOfferAmount

Value

10000000000

Python

constant = substrate.get_constant('Marketplace', 'MinimumOfferAmount')

---

RoyaltyBondAmount

Value

0

Python

constant = substrate.get_constant('Marketplace', 'RoyaltyBondAmount')

---

Errors

---

AcceptNotAuthorized

User has to be the token owner to accept an offer

---

AlreadyOffered

User already made an offer for this token

---

BuyFromSelf

Cannot buy a token from yourself

---

CollectionOrItemUnknown

Collection or item does not exist

---

NotForSale

Token is currently not for sale

---

NotInRange

Royalty not in 0-9_999 range

---

NotTheTokenOwner

Account is not the owner of the token

---

OfferExpired

Offer is no longer valid

---

OfferTooLow

Offer is lower than the minimum threshold

---

RoyaltyAlreadySet

Royalty can be set only once

---

UnknownOffer

No offer for this token found from the user

---

WithdrawNotAuthorized

User has to be offer maker or token owner to withdraw an offer

---