git.delta.rocks / unique-network / refs/commits / da952fd3c8fb

difftreelog

initial commit

PraetorP2022-07-11parent: #5ffdcf0.patch.diff
in: master

14 files changed

modifiedclient/rpc/src/lib.rsdiffbeforeafterboth
--- a/client/rpc/src/lib.rs
+++ b/client/rpc/src/lib.rs
@@ -70,6 +70,15 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<Option<CrossAccountId>>;
+
+	#[method(name = "unique_tokenOwners")]
+	fn token_owners(
+		&self,
+		collection: CollectionId,
+		token: TokenId,
+		at: Option<BlockHash>,
+	) -> Result<Vec<CrossAccountId>>;
+
 	#[method(name = "unique_topmostTokenOwner")]
 	fn topmost_token_owner(
 		&self,
@@ -473,6 +482,7 @@
 	pass_method!(next_sponsored(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Option<u64>, unique_api);
 	pass_method!(effective_collection_limits(collection_id: CollectionId) -> Option<CollectionLimits>, unique_api);
 	pass_method!(total_pieces(collection_id: CollectionId, token_id: TokenId) -> Option<u128>, unique_api);
+	pass_method!(token_owners(collection: CollectionId, token: TokenId) -> Vec<CrossAccountId>, unique_api);
 }
 
 #[allow(deprecated)]
modifiedpallets/common/src/lib.rsdiffbeforeafterboth
--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -1748,6 +1748,9 @@
 	/// * `token` - The token for which you need to find out the owner.
 	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;
 
+	/// Token owners
+	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId>;
+
 	/// Get the value of the token property by key.
 	///
 	/// * `token` - Token with the property to get.
modifiedpallets/fungible/src/common.rsdiffbeforeafterboth
before · pallets/fungible/src/common.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617use core::marker::PhantomData;1819use frame_support::{dispatch::DispatchResultWithPostInfo, ensure, fail, weights::Weight, traits::Get};20use up_data_structs::{TokenId, CollectionId, CreateItemExData, budget::Budget, CreateItemData};21use pallet_common::{CommonCollectionOperations, CommonWeightInfo, RefungibleExtensions, with_weight};22use pallet_structure::Error as StructureError;23use sp_runtime::ArithmeticError;24use sp_std::{vec::Vec, vec};25use up_data_structs::{Property, PropertyKey, PropertyValue, PropertyKeyPermission};2627use crate::{28	Allowance, TotalSupply, Balance, Config, Error, FungibleHandle, Pallet, SelfWeightOf,29	weights::WeightInfo,30};3132pub struct CommonWeights<T: Config>(PhantomData<T>);33impl<T: Config> CommonWeightInfo<T::CrossAccountId> for CommonWeights<T> {34	fn create_item() -> Weight {35		<SelfWeightOf<T>>::create_item()36	}3738	fn create_multiple_items(_data: &[CreateItemData]) -> Weight {39		// All items minted for the same user, so it works same as create_item40		Self::create_item()41	}4243	fn create_multiple_items_ex(data: &CreateItemExData<T::CrossAccountId>) -> Weight {44		match data {45			CreateItemExData::Fungible(f) => {46				<SelfWeightOf<T>>::create_multiple_items_ex(f.len() as u32)47			}48			_ => 0,49		}50	}5152	fn burn_item() -> Weight {53		<SelfWeightOf<T>>::burn_item()54	}5556	fn set_collection_properties(_amount: u32) -> Weight {57		// Error58		059	}6061	fn delete_collection_properties(_amount: u32) -> Weight {62		// Error63		064	}6566	fn set_token_properties(_amount: u32) -> Weight {67		// Error68		069	}7071	fn delete_token_properties(_amount: u32) -> Weight {72		// Error73		074	}7576	fn set_token_property_permissions(_amount: u32) -> Weight {77		// Error78		079	}8081	fn transfer() -> Weight {82		<SelfWeightOf<T>>::transfer()83	}8485	fn approve() -> Weight {86		<SelfWeightOf<T>>::approve()87	}8889	fn transfer_from() -> Weight {90		<SelfWeightOf<T>>::transfer_from()91	}9293	fn burn_from() -> Weight {94		<SelfWeightOf<T>>::burn_from()95	}9697	fn burn_recursively_self_raw() -> Weight {98		// Read to get total balance99		Self::burn_item() + T::DbWeight::get().reads(1)100	}101102	fn burn_recursively_breadth_raw(_amount: u32) -> Weight {103		// Fungible tokens can't have children104		0105	}106}107108/// Implementation of `CommonCollectionOperations` for `FungibleHandle`. It wraps FungibleHandle Pallete109/// methods and adds weight info.110impl<T: Config> CommonCollectionOperations<T> for FungibleHandle<T> {111	fn create_item(112		&self,113		sender: T::CrossAccountId,114		to: T::CrossAccountId,115		data: up_data_structs::CreateItemData,116		nesting_budget: &dyn Budget,117	) -> DispatchResultWithPostInfo {118		match data {119			up_data_structs::CreateItemData::Fungible(data) => with_weight(120				<Pallet<T>>::create_item(self, &sender, (to, data.value), nesting_budget),121				<CommonWeights<T>>::create_item(),122			),123			_ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),124		}125	}126127	fn create_multiple_items(128		&self,129		sender: T::CrossAccountId,130		to: T::CrossAccountId,131		data: Vec<up_data_structs::CreateItemData>,132		nesting_budget: &dyn Budget,133	) -> DispatchResultWithPostInfo {134		let mut sum: u128 = 0;135		for data in data {136			match data {137				up_data_structs::CreateItemData::Fungible(data) => {138					sum = sum139						.checked_add(data.value)140						.ok_or(ArithmeticError::Overflow)?;141				}142				_ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),143			}144		}145146		with_weight(147			<Pallet<T>>::create_item(self, &sender, (to, sum), nesting_budget),148			<CommonWeights<T>>::create_item(),149		)150	}151152	fn create_multiple_items_ex(153		&self,154		sender: <T>::CrossAccountId,155		data: up_data_structs::CreateItemExData<<T>::CrossAccountId>,156		nesting_budget: &dyn Budget,157	) -> DispatchResultWithPostInfo {158		let weight = <CommonWeights<T>>::create_multiple_items_ex(&data);159		let data = match data {160			up_data_structs::CreateItemExData::Fungible(f) => f,161			_ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),162		};163164		with_weight(165			<Pallet<T>>::create_multiple_items(self, &sender, data.into_inner(), nesting_budget),166			weight,167		)168	}169170	fn burn_item(171		&self,172		sender: T::CrossAccountId,173		token: TokenId,174		amount: u128,175	) -> DispatchResultWithPostInfo {176		ensure!(177			token == TokenId::default(),178			<Error<T>>::FungibleItemsHaveNoId179		);180181		with_weight(182			<Pallet<T>>::burn(self, &sender, amount),183			<CommonWeights<T>>::burn_item(),184		)185	}186187	fn burn_item_recursively(188		&self,189		sender: T::CrossAccountId,190		token: TokenId,191		self_budget: &dyn Budget,192		_breadth_budget: &dyn Budget,193	) -> DispatchResultWithPostInfo {194		// Should not happen?195		ensure!(196			token == TokenId::default(),197			<Error<T>>::FungibleItemsHaveNoId198		);199		ensure!(self_budget.consume(), <StructureError<T>>::DepthLimit,);200201		with_weight(202			<Pallet<T>>::burn(self, &sender, <Balance<T>>::get((self.id, &sender))),203			<CommonWeights<T>>::burn_recursively_self_raw(),204		)205	}206207	fn transfer(208		&self,209		from: T::CrossAccountId,210		to: T::CrossAccountId,211		token: TokenId,212		amount: u128,213		nesting_budget: &dyn Budget,214	) -> DispatchResultWithPostInfo {215		ensure!(216			token == TokenId::default(),217			<Error<T>>::FungibleItemsHaveNoId218		);219220		with_weight(221			<Pallet<T>>::transfer(self, &from, &to, amount, nesting_budget),222			<CommonWeights<T>>::transfer(),223		)224	}225226	fn approve(227		&self,228		sender: T::CrossAccountId,229		spender: T::CrossAccountId,230		token: TokenId,231		amount: u128,232	) -> DispatchResultWithPostInfo {233		ensure!(234			token == TokenId::default(),235			<Error<T>>::FungibleItemsHaveNoId236		);237238		with_weight(239			<Pallet<T>>::set_allowance(self, &sender, &spender, amount),240			<CommonWeights<T>>::approve(),241		)242	}243244	fn transfer_from(245		&self,246		sender: T::CrossAccountId,247		from: T::CrossAccountId,248		to: T::CrossAccountId,249		token: TokenId,250		amount: u128,251		nesting_budget: &dyn Budget,252	) -> DispatchResultWithPostInfo {253		ensure!(254			token == TokenId::default(),255			<Error<T>>::FungibleItemsHaveNoId256		);257258		with_weight(259			<Pallet<T>>::transfer_from(self, &sender, &from, &to, amount, nesting_budget),260			<CommonWeights<T>>::transfer_from(),261		)262	}263264	fn burn_from(265		&self,266		sender: T::CrossAccountId,267		from: T::CrossAccountId,268		token: TokenId,269		amount: u128,270		nesting_budget: &dyn Budget,271	) -> DispatchResultWithPostInfo {272		ensure!(273			token == TokenId::default(),274			<Error<T>>::FungibleItemsHaveNoId275		);276277		with_weight(278			<Pallet<T>>::burn_from(self, &sender, &from, amount, nesting_budget),279			<CommonWeights<T>>::burn_from(),280		)281	}282283	fn set_collection_properties(284		&self,285		_sender: T::CrossAccountId,286		_property: Vec<Property>,287	) -> DispatchResultWithPostInfo {288		fail!(<Error<T>>::SettingPropertiesNotAllowed)289	}290291	fn delete_collection_properties(292		&self,293		_sender: &T::CrossAccountId,294		_property_keys: Vec<PropertyKey>,295	) -> DispatchResultWithPostInfo {296		fail!(<Error<T>>::SettingPropertiesNotAllowed)297	}298299	fn set_token_properties(300		&self,301		_sender: T::CrossAccountId,302		_token_id: TokenId,303		_property: Vec<Property>,304		_nesting_budget: &dyn Budget,305	) -> DispatchResultWithPostInfo {306		fail!(<Error<T>>::SettingPropertiesNotAllowed)307	}308309	fn set_token_property_permissions(310		&self,311		_sender: &T::CrossAccountId,312		_property_permissions: Vec<PropertyKeyPermission>,313	) -> DispatchResultWithPostInfo {314		fail!(<Error<T>>::SettingPropertiesNotAllowed)315	}316317	fn delete_token_properties(318		&self,319		_sender: T::CrossAccountId,320		_token_id: TokenId,321		_property_keys: Vec<PropertyKey>,322		_nesting_budget: &dyn Budget,323	) -> DispatchResultWithPostInfo {324		fail!(<Error<T>>::SettingPropertiesNotAllowed)325	}326327	fn check_nesting(328		&self,329		_sender: <T>::CrossAccountId,330		_from: (CollectionId, TokenId),331		_under: TokenId,332		_nesting_budget: &dyn Budget,333	) -> sp_runtime::DispatchResult {334		fail!(<Error<T>>::FungibleDisallowsNesting)335	}336337	fn nest(&self, _under: TokenId, _to_nest: (CollectionId, TokenId)) {}338339	fn unnest(&self, _under: TokenId, _to_nest: (CollectionId, TokenId)) {}340341	fn collection_tokens(&self) -> Vec<TokenId> {342		vec![TokenId::default()]343	}344345	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId> {346		if <Balance<T>>::get((self.id, account)) != 0 {347			vec![TokenId::default()]348		} else {349			vec![]350		}351	}352353	fn token_exists(&self, token: TokenId) -> bool {354		token == TokenId::default()355	}356357	fn last_token_id(&self) -> TokenId {358		TokenId::default()359	}360361	fn token_owner(&self, _token: TokenId) -> Option<T::CrossAccountId> {362		None363	}364365	fn token_property(&self, _token_id: TokenId, _key: &PropertyKey) -> Option<PropertyValue> {366		None367	}368369	fn token_properties(370		&self,371		_token_id: TokenId,372		_keys: Option<Vec<PropertyKey>>,373	) -> Vec<Property> {374		Vec::new()375	}376377	fn total_supply(&self) -> u32 {378		1379	}380381	fn account_balance(&self, account: T::CrossAccountId) -> u32 {382		if <Balance<T>>::get((self.id, account)) != 0 {383			1384		} else {385			0386		}387	}388389	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128 {390		if token != TokenId::default() {391			return 0;392		}393		<Balance<T>>::get((self.id, account))394	}395396	fn allowance(397		&self,398		sender: T::CrossAccountId,399		spender: T::CrossAccountId,400		token: TokenId,401	) -> u128 {402		if token != TokenId::default() {403			return 0;404		}405		<Allowance<T>>::get((self.id, sender, spender))406	}407408	fn refungible_extensions(&self) -> Option<&dyn RefungibleExtensions<T>> {409		None410	}411412	fn total_pieces(&self, token: TokenId) -> Option<u128> {413		if token != TokenId::default() {414			return None;415		}416		<TotalSupply<T>>::try_get(self.id).ok()417	}418}
after · pallets/fungible/src/common.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617use core::marker::PhantomData;1819use frame_support::{dispatch::DispatchResultWithPostInfo, ensure, fail, weights::Weight, traits::Get};20use up_data_structs::{TokenId, CollectionId, CreateItemExData, budget::Budget, CreateItemData};21use pallet_common::{CommonCollectionOperations, CommonWeightInfo, RefungibleExtensions, with_weight};22use pallet_structure::Error as StructureError;23use sp_runtime::ArithmeticError;24use sp_std::{vec::Vec, vec};25use up_data_structs::{Property, PropertyKey, PropertyValue, PropertyKeyPermission};2627use crate::{28	Allowance, TotalSupply, Balance, Config, Error, FungibleHandle, Pallet, SelfWeightOf,29	weights::WeightInfo,30};3132pub struct CommonWeights<T: Config>(PhantomData<T>);33impl<T: Config> CommonWeightInfo<T::CrossAccountId> for CommonWeights<T> {34	fn create_item() -> Weight {35		<SelfWeightOf<T>>::create_item()36	}3738	fn create_multiple_items(_data: &[CreateItemData]) -> Weight {39		// All items minted for the same user, so it works same as create_item40		Self::create_item()41	}4243	fn create_multiple_items_ex(data: &CreateItemExData<T::CrossAccountId>) -> Weight {44		match data {45			CreateItemExData::Fungible(f) => {46				<SelfWeightOf<T>>::create_multiple_items_ex(f.len() as u32)47			}48			_ => 0,49		}50	}5152	fn burn_item() -> Weight {53		<SelfWeightOf<T>>::burn_item()54	}5556	fn set_collection_properties(_amount: u32) -> Weight {57		// Error58		059	}6061	fn delete_collection_properties(_amount: u32) -> Weight {62		// Error63		064	}6566	fn set_token_properties(_amount: u32) -> Weight {67		// Error68		069	}7071	fn delete_token_properties(_amount: u32) -> Weight {72		// Error73		074	}7576	fn set_token_property_permissions(_amount: u32) -> Weight {77		// Error78		079	}8081	fn transfer() -> Weight {82		<SelfWeightOf<T>>::transfer()83	}8485	fn approve() -> Weight {86		<SelfWeightOf<T>>::approve()87	}8889	fn transfer_from() -> Weight {90		<SelfWeightOf<T>>::transfer_from()91	}9293	fn burn_from() -> Weight {94		<SelfWeightOf<T>>::burn_from()95	}9697	fn burn_recursively_self_raw() -> Weight {98		// Read to get total balance99		Self::burn_item() + T::DbWeight::get().reads(1)100	}101102	fn burn_recursively_breadth_raw(_amount: u32) -> Weight {103		// Fungible tokens can't have children104		0105	}106}107108/// Implementation of `CommonCollectionOperations` for `FungibleHandle`. It wraps FungibleHandle Pallete109/// methods and adds weight info.110impl<T: Config> CommonCollectionOperations<T> for FungibleHandle<T> {111	fn create_item(112		&self,113		sender: T::CrossAccountId,114		to: T::CrossAccountId,115		data: up_data_structs::CreateItemData,116		nesting_budget: &dyn Budget,117	) -> DispatchResultWithPostInfo {118		match data {119			up_data_structs::CreateItemData::Fungible(data) => with_weight(120				<Pallet<T>>::create_item(self, &sender, (to, data.value), nesting_budget),121				<CommonWeights<T>>::create_item(),122			),123			_ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),124		}125	}126127	fn create_multiple_items(128		&self,129		sender: T::CrossAccountId,130		to: T::CrossAccountId,131		data: Vec<up_data_structs::CreateItemData>,132		nesting_budget: &dyn Budget,133	) -> DispatchResultWithPostInfo {134		let mut sum: u128 = 0;135		for data in data {136			match data {137				up_data_structs::CreateItemData::Fungible(data) => {138					sum = sum139						.checked_add(data.value)140						.ok_or(ArithmeticError::Overflow)?;141				}142				_ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),143			}144		}145146		with_weight(147			<Pallet<T>>::create_item(self, &sender, (to, sum), nesting_budget),148			<CommonWeights<T>>::create_item(),149		)150	}151152	fn create_multiple_items_ex(153		&self,154		sender: <T>::CrossAccountId,155		data: up_data_structs::CreateItemExData<<T>::CrossAccountId>,156		nesting_budget: &dyn Budget,157	) -> DispatchResultWithPostInfo {158		let weight = <CommonWeights<T>>::create_multiple_items_ex(&data);159		let data = match data {160			up_data_structs::CreateItemExData::Fungible(f) => f,161			_ => fail!(<Error<T>>::NotFungibleDataUsedToMintFungibleCollectionToken),162		};163164		with_weight(165			<Pallet<T>>::create_multiple_items(self, &sender, data.into_inner(), nesting_budget),166			weight,167		)168	}169170	fn burn_item(171		&self,172		sender: T::CrossAccountId,173		token: TokenId,174		amount: u128,175	) -> DispatchResultWithPostInfo {176		ensure!(177			token == TokenId::default(),178			<Error<T>>::FungibleItemsHaveNoId179		);180181		with_weight(182			<Pallet<T>>::burn(self, &sender, amount),183			<CommonWeights<T>>::burn_item(),184		)185	}186187	fn burn_item_recursively(188		&self,189		sender: T::CrossAccountId,190		token: TokenId,191		self_budget: &dyn Budget,192		_breadth_budget: &dyn Budget,193	) -> DispatchResultWithPostInfo {194		// Should not happen?195		ensure!(196			token == TokenId::default(),197			<Error<T>>::FungibleItemsHaveNoId198		);199		ensure!(self_budget.consume(), <StructureError<T>>::DepthLimit,);200201		with_weight(202			<Pallet<T>>::burn(self, &sender, <Balance<T>>::get((self.id, &sender))),203			<CommonWeights<T>>::burn_recursively_self_raw(),204		)205	}206207	fn transfer(208		&self,209		from: T::CrossAccountId,210		to: T::CrossAccountId,211		token: TokenId,212		amount: u128,213		nesting_budget: &dyn Budget,214	) -> DispatchResultWithPostInfo {215		ensure!(216			token == TokenId::default(),217			<Error<T>>::FungibleItemsHaveNoId218		);219220		with_weight(221			<Pallet<T>>::transfer(self, &from, &to, amount, nesting_budget),222			<CommonWeights<T>>::transfer(),223		)224	}225226	fn approve(227		&self,228		sender: T::CrossAccountId,229		spender: T::CrossAccountId,230		token: TokenId,231		amount: u128,232	) -> DispatchResultWithPostInfo {233		ensure!(234			token == TokenId::default(),235			<Error<T>>::FungibleItemsHaveNoId236		);237238		with_weight(239			<Pallet<T>>::set_allowance(self, &sender, &spender, amount),240			<CommonWeights<T>>::approve(),241		)242	}243244	fn transfer_from(245		&self,246		sender: T::CrossAccountId,247		from: T::CrossAccountId,248		to: T::CrossAccountId,249		token: TokenId,250		amount: u128,251		nesting_budget: &dyn Budget,252	) -> DispatchResultWithPostInfo {253		ensure!(254			token == TokenId::default(),255			<Error<T>>::FungibleItemsHaveNoId256		);257258		with_weight(259			<Pallet<T>>::transfer_from(self, &sender, &from, &to, amount, nesting_budget),260			<CommonWeights<T>>::transfer_from(),261		)262	}263264	fn burn_from(265		&self,266		sender: T::CrossAccountId,267		from: T::CrossAccountId,268		token: TokenId,269		amount: u128,270		nesting_budget: &dyn Budget,271	) -> DispatchResultWithPostInfo {272		ensure!(273			token == TokenId::default(),274			<Error<T>>::FungibleItemsHaveNoId275		);276277		with_weight(278			<Pallet<T>>::burn_from(self, &sender, &from, amount, nesting_budget),279			<CommonWeights<T>>::burn_from(),280		)281	}282283	fn set_collection_properties(284		&self,285		_sender: T::CrossAccountId,286		_property: Vec<Property>,287	) -> DispatchResultWithPostInfo {288		fail!(<Error<T>>::SettingPropertiesNotAllowed)289	}290291	fn delete_collection_properties(292		&self,293		_sender: &T::CrossAccountId,294		_property_keys: Vec<PropertyKey>,295	) -> DispatchResultWithPostInfo {296		fail!(<Error<T>>::SettingPropertiesNotAllowed)297	}298299	fn set_token_properties(300		&self,301		_sender: T::CrossAccountId,302		_token_id: TokenId,303		_property: Vec<Property>,304		_nesting_budget: &dyn Budget,305	) -> DispatchResultWithPostInfo {306		fail!(<Error<T>>::SettingPropertiesNotAllowed)307	}308309	fn set_token_property_permissions(310		&self,311		_sender: &T::CrossAccountId,312		_property_permissions: Vec<PropertyKeyPermission>,313	) -> DispatchResultWithPostInfo {314		fail!(<Error<T>>::SettingPropertiesNotAllowed)315	}316317	fn delete_token_properties(318		&self,319		_sender: T::CrossAccountId,320		_token_id: TokenId,321		_property_keys: Vec<PropertyKey>,322		_nesting_budget: &dyn Budget,323	) -> DispatchResultWithPostInfo {324		fail!(<Error<T>>::SettingPropertiesNotAllowed)325	}326327	fn check_nesting(328		&self,329		_sender: <T>::CrossAccountId,330		_from: (CollectionId, TokenId),331		_under: TokenId,332		_nesting_budget: &dyn Budget,333	) -> sp_runtime::DispatchResult {334		fail!(<Error<T>>::FungibleDisallowsNesting)335	}336337	fn nest(&self, _under: TokenId, _to_nest: (CollectionId, TokenId)) {}338339	fn unnest(&self, _under: TokenId, _to_nest: (CollectionId, TokenId)) {}340341	fn collection_tokens(&self) -> Vec<TokenId> {342		vec![TokenId::default()]343	}344345	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId> {346		if <Balance<T>>::get((self.id, account)) != 0 {347			vec![TokenId::default()]348		} else {349			vec![]350		}351	}352353	fn token_exists(&self, token: TokenId) -> bool {354		token == TokenId::default()355	}356357	fn last_token_id(&self) -> TokenId {358		TokenId::default()359	}360361	fn token_owner(&self, _token: TokenId) -> Option<T::CrossAccountId> {362		None363	}364365	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId> {366		<Pallet<T>>::token_owners(self.id, token).unwrap_or_else(|| vec![])367	}368369	fn token_property(&self, _token_id: TokenId, _key: &PropertyKey) -> Option<PropertyValue> {370		None371	}372373	fn token_properties(374		&self,375		_token_id: TokenId,376		_keys: Option<Vec<PropertyKey>>,377	) -> Vec<Property> {378		Vec::new()379	}380381	fn total_supply(&self) -> u32 {382		1383	}384385	fn account_balance(&self, account: T::CrossAccountId) -> u32 {386		if <Balance<T>>::get((self.id, account)) != 0 {387			1388		} else {389			0390		}391	}392393	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128 {394		if token != TokenId::default() {395			return 0;396		}397		<Balance<T>>::get((self.id, account))398	}399400	fn allowance(401		&self,402		sender: T::CrossAccountId,403		spender: T::CrossAccountId,404		token: TokenId,405	) -> u128 {406		if token != TokenId::default() {407			return 0;408		}409		<Allowance<T>>::get((self.id, sender, spender))410	}411412	fn refungible_extensions(&self) -> Option<&dyn RefungibleExtensions<T>> {413		None414	}415416	fn total_pieces(&self, token: TokenId) -> Option<u128> {417		if token != TokenId::default() {418			return None;419		}420		<TotalSupply<T>>::try_get(self.id).ok()421	}422}
modifiedpallets/fungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/fungible/src/lib.rs
+++ b/pallets/fungible/src/lib.rs
@@ -95,7 +95,7 @@
 use pallet_evm_coder_substrate::WithRecorder;
 use sp_core::H160;
 use sp_runtime::{ArithmeticError, DispatchError, DispatchResult};
-use sp_std::{collections::btree_map::BTreeMap};
+use sp_std::{collections::btree_map::BTreeMap, vec::Vec};
 
 pub use pallet::*;
 
@@ -613,4 +613,20 @@
 			nesting_budget,
 		)
 	}
+
+	pub fn token_owners(
+		collection: CollectionId,
+		_token: TokenId,
+	) -> Option<Vec<T::CrossAccountId>> {
+		let res: Vec<T::CrossAccountId> = <Balance<T>>::iter_prefix((collection,))
+			.map(|r| r.0)
+			.take(10)
+			.collect();
+
+		if res.len() == 0 {
+			None
+		} else {
+			Some(res)
+		}
+	}
 }
modifiedpallets/nonfungible/src/common.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/common.rs
+++ b/pallets/nonfungible/src/common.rs
@@ -26,7 +26,7 @@
 	weights::WeightInfo as _,
 };
 use sp_runtime::DispatchError;
-use sp_std::vec::Vec;
+use sp_std::{vec::Vec, vec};
 
 use crate::{
 	AccountBalance, Allowance, Config, CreateItemData, Error, NonfungibleHandle, Owned, Pallet,
@@ -422,6 +422,10 @@
 		<TokenData<T>>::get((self.id, token)).map(|t| t.owner)
 	}
 
+	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId> {
+		self.token_owner(token).map_or_else(|| vec![], |t| vec![t])
+	}
+
 	fn token_property(&self, token_id: TokenId, key: &PropertyKey) -> Option<PropertyValue> {
 		<Pallet<T>>::token_properties((self.id, token_id))
 			.get(key)
modifiedpallets/refungible/src/common.rsdiffbeforeafterboth
--- a/pallets/refungible/src/common.rs
+++ b/pallets/refungible/src/common.rs
@@ -438,6 +438,10 @@
 		<Pallet<T>>::token_owner(self.id, token)
 	}
 
+	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId> {
+		<Pallet<T>>::token_owners(self.id, token).unwrap_or_else(|| vec![])
+	}
+
 	fn token_property(&self, _token_id: TokenId, _key: &PropertyKey) -> Option<PropertyValue> {
 		None
 	}
modifiedpallets/refungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -1134,4 +1134,20 @@
 	) -> DispatchResult {
 		<PalletCommon<T>>::set_token_property_permissions(collection, sender, property_permissions)
 	}
+	
+	pub fn token_owners(
+		collection_id: CollectionId,
+		token: TokenId,
+	) -> Option<Vec<T::CrossAccountId>> {
+		let res: Vec<T::CrossAccountId> = <Balance<T>>::iter_prefix((collection_id, token))
+			.map(|r| r.0)
+			.take(10)
+			.collect();
+
+		if res.len() == 0 {
+			None
+		} else {
+			Some(res)
+		}
+	}
 }
modifiedprimitives/rpc/src/lib.rsdiffbeforeafterboth
--- a/primitives/rpc/src/lib.rs
+++ b/primitives/rpc/src/lib.rs
@@ -81,5 +81,6 @@
 		fn next_sponsored(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Result<Option<u64>>;
 		fn effective_collection_limits(collection_id: CollectionId) -> Result<Option<CollectionLimits>>;
 		fn total_pieces(collection_id: CollectionId, token_id: TokenId) -> Result<Option<u128>>;
+		fn token_owners(collection: CollectionId, token: TokenId) -> Result<Vec::<CrossAccountId>>;
 	}
 }
modifiedruntime/common/src/runtime_apis.rsdiffbeforeafterboth
--- a/runtime/common/src/runtime_apis.rs
+++ b/runtime/common/src/runtime_apis.rs
@@ -40,6 +40,11 @@
                 fn token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>, DispatchError> {
                     dispatch_unique_runtime!(collection.token_owner(token))
                 }
+
+                fn token_owners(collection: CollectionId, token: TokenId) -> Result<Vec::<CrossAccountId>, DispatchError>  {
+                   dispatch_unique_runtime!(collection.token_owners(token))
+                }
+
                 fn topmost_token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>, DispatchError> {
                     let budget = up_data_structs::budget::Value::new(10);
 
modifiedtests/package.jsondiffbeforeafterboth
--- a/tests/package.json
+++ b/tests/package.json
@@ -80,6 +80,7 @@
     "testLimits": "mocha --timeout 9999999 -r ts-node/register ./**/limits.test.ts",
     "testEthCreateCollection": "mocha --timeout 9999999 -r ts-node/register ./**/eth/createCollection.test.ts",
     "testRFT": "mocha --timeout 9999999 -r ts-node/register ./**/refungible.test.ts",
+    "testRPC": "mocha --timeout 9999999 -r ts-node/register ./**/rpc.test.ts",
     "polkadot-types-fetch-metadata": "curl -H 'Content-Type: application/json' -d '{\"id\":\"1\", \"jsonrpc\":\"2.0\", \"method\": \"state_getMetadata\", \"params\":[]}' http://localhost:9933 > src/interfaces/metadata.json",
     "polkadot-types-from-defs": "ts-node ./node_modules/.bin/polkadot-types-from-defs --endpoint src/interfaces/metadata.json --input src/interfaces/ --package .",
     "polkadot-types-from-chain": "ts-node ./node_modules/.bin/polkadot-types-from-chain --endpoint src/interfaces/metadata.json --output src/interfaces/ --package .",
modifiedtests/src/interfaces/augment-api-rpc.tsdiffbeforeafterboth
--- a/tests/src/interfaces/augment-api-rpc.ts
+++ b/tests/src/interfaces/augment-api-rpc.ts
@@ -709,6 +709,10 @@
        **/
       tokenOwner: AugmentedRpc<(collection: u32 | AnyNumber | Uint8Array, tokenId: u32 | AnyNumber | Uint8Array, at?: Hash | string | Uint8Array) => Observable<Option<PalletEvmAccountBasicCrossAccountIdRepr>>>;
       /**
+       * Get token owners
+       **/
+      tokenOwners: AugmentedRpc<(collection: u32 | AnyNumber | Uint8Array, tokenId: u32 | AnyNumber | Uint8Array, at?: Hash | string | Uint8Array) => Observable<Vec<PalletEvmAccountBasicCrossAccountIdRepr>>>;
+      /**
        * Get token properties
        **/
       tokenProperties: AugmentedRpc<(collection: u32 | AnyNumber | Uint8Array, tokenId: u32 | AnyNumber | Uint8Array, propertyKeys?: Vec<Text> | (Text | string)[], at?: Hash | string | Uint8Array) => Observable<Vec<UpDataStructsProperty>>>;
modifiedtests/src/interfaces/unique/definitions.tsdiffbeforeafterboth
--- a/tests/src/interfaces/unique/definitions.ts
+++ b/tests/src/interfaces/unique/definitions.ts
@@ -49,6 +49,7 @@
     balance: fun('Get amount of specific account token', [collectionParam, crossAccountParam(), tokenParam], 'u128'),
     allowance: fun('Get allowed amount', [collectionParam, crossAccountParam('sender'), crossAccountParam('spender'), tokenParam], 'u128'),
     tokenOwner: fun('Get token owner', [collectionParam, tokenParam], `Option<${CROSS_ACCOUNT_ID_TYPE}>`),
+    tokenOwners: fun('Get token owners', [collectionParam, tokenParam], `Vec<${CROSS_ACCOUNT_ID_TYPE}>`),
     topmostTokenOwner: fun('Get token owner, in case of nested token - find parent recursive', [collectionParam, tokenParam], `Option<${CROSS_ACCOUNT_ID_TYPE}>`),
     tokenChildren: fun('Get tokens nested directly into the token', [collectionParam, tokenParam], 'Vec<UpDataStructsTokenChild>'),
     constMetadata: fun('Get token constant metadata', [collectionParam, tokenParam], 'Vec<u8>'),
modifiedtests/src/refungible.test.tsdiffbeforeafterboth
--- a/tests/src/refungible.test.ts
+++ b/tests/src/refungible.test.ts
@@ -53,14 +53,14 @@
   it('Create refungible collection and token', async () => {
     await usingApi(async api => {
       const createCollectionResult = await createCollection(api, alice, {mode: {type: 'ReFungible'}});
-      expect(createCollectionResult.success).to.be.true;    
+      expect(createCollectionResult.success).to.be.true;
       const collectionId  = createCollectionResult.collectionId;
-
+      
       const itemCountBefore = await getLastTokenId(api, collectionId);
       const result = await createRefungibleToken(api, alice, collectionId, 100n);
-
+      
       const itemCountAfter = await getLastTokenId(api, collectionId);
-
+      
       // What to expect
       // tslint:disable-next-line:no-unused-expression
       expect(result.success).to.be.true;
@@ -69,7 +69,39 @@
       expect(itemCountAfter.toString()).to.be.equal(result.itemId.toString());
     });
   });
-
+  
+  it('RPC method tokenOnewrs for refungible collection and token', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const ethAcc = {Ethereum: '0x67fb3503a61b284dc83fa96dceec4192db47dc7c'};
+      const facelessCrowd = Array.from(Array(7).keys()).map(i => normalizeAccountId(privateKeyWrapper(i.toString())));
+      
+      const createCollectionResult = await createCollection(api, alice, {mode: {type: 'ReFungible'}});
+      const collectionId = createCollectionResult.collectionId;
+      
+      const result = await createRefungibleToken(api, alice, collectionId, 10_000n);
+      const aliceTokenId = result.itemId;
+      
+      
+      await transfer(api, collectionId, aliceTokenId, alice, bob, 1000n);
+      await transfer(api, collectionId, aliceTokenId, alice, ethAcc, 900n);
+      
+      for (let i = 0; i < 7; i++) {
+        await transfer(api, collectionId, aliceTokenId, alice, facelessCrowd[i], 50*(i+1));
+      } 
+      
+      const owners = await api.rpc.unique.tokenOwners(collectionId, aliceTokenId);
+      const ids = (owners.toJSON() as CrossAccountId[]).map(s => normalizeAccountId(s));
+      
+      const aliceID = normalizeAccountId(alice);
+      const bobId = normalizeAccountId(bob);
+      
+      // What to expect
+      // tslint:disable-next-line:no-unused-expression
+      expect(ids).to.deep.include.members([aliceID, ethAcc, bobId, ...facelessCrowd]);
+      expect(owners.length == 10).to.be.true;
+    });
+  });
+  
   it('Transfer token pieces', async () => {
     await usingApi(async api => {
       const collectionId = (await createCollection(api, alice, {mode: {type: 'ReFungible'}})).collectionId;
modifiedtests/src/rpc.test.tsdiffbeforeafterboth
--- a/tests/src/rpc.test.ts
+++ b/tests/src/rpc.test.ts
@@ -1,12 +1,53 @@
+import {IKeyringPair} from '@polkadot/types/types';
 import {expect} from 'chai';
 import usingApi from './substrate/substrate-api';
-import {createCollectionExpectSuccess, getTokenOwner} from './util/helpers';
+import {createCollection, createCollectionExpectSuccess, createFungibleItemExpectSuccess, CrossAccountId, getTokenOwner, normalizeAccountId, transfer, U128_MAX} from './util/helpers';
+
+let alice: IKeyringPair;
+let bob: IKeyringPair;
+
 
-describe('getTokenOwner', () => {
+describe('integration test: RPC methods', () => {
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+    });
+  });
+
+  
   it('returns None for fungible collection', async () => {
     await usingApi(async api => {
       const collection = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
       await expect(getTokenOwner(api, collection, 0)).to.be.rejectedWith(/^owner == null$/);
     });
   });
+  
+  it('RPC method tokenOnewrs for fungible collection and token', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const ethAcc = {Ethereum: '0x67fb3503a61b284dc83fa96dceec4192db47dc7c'};
+      const facelessCrowd = Array.from(Array(7).keys()).map(i => normalizeAccountId(privateKeyWrapper(i.toString())));
+      
+      const createCollectionResult = await createCollection(api, alice, {mode: {type: 'Fungible', decimalPoints: 0}});
+      const collectionId = createCollectionResult.collectionId;
+      const aliceTokenId = await createFungibleItemExpectSuccess(alice, collectionId, {Value: U128_MAX}, alice.address);
+     
+      await transfer(api, collectionId, aliceTokenId, alice, bob, 1000n);
+      await transfer(api, collectionId, aliceTokenId, alice, ethAcc, 900n);
+            
+      for (let i = 0; i < 7; i++) {
+        await transfer(api, collectionId, aliceTokenId, alice, facelessCrowd[i], 1);
+      } 
+      
+      const owners = await api.rpc.unique.tokenOwners(collectionId, aliceTokenId);
+      const ids = (owners.toJSON() as CrossAccountId[]).map(s => normalizeAccountId(s));
+      const aliceID = normalizeAccountId(alice);
+      const bobId = normalizeAccountId(bob);
+
+      // What to expect
+      // tslint:disable-next-line:no-unused-expression
+      expect(ids).to.deep.include.members([aliceID, ethAcc, bobId, ...facelessCrowd]);
+      expect(owners.length == 10).to.be.true;
+    });
+  });
 });
\ No newline at end of file