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
before · client/rpc/src/lib.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/>.1617// Original License18use std::sync::Arc;1920use codec::{Decode, Encode};21use jsonrpsee::{22	core::{RpcResult as Result},23	proc_macros::rpc,24};25use anyhow::anyhow;26use up_data_structs::{27	RpcCollection, CollectionId, CollectionStats, CollectionLimits, TokenId, Property,28	PropertyKeyPermission, TokenData, TokenChild,29};30use sp_api::{BlockId, BlockT, ProvideRuntimeApi, ApiExt};31use sp_blockchain::HeaderBackend;32use up_rpc::UniqueApi as UniqueRuntimeApi;3334// RMRK35use rmrk_rpc::RmrkApi as RmrkRuntimeApi;36use up_data_structs::{37	RmrkCollectionId, RmrkNftId, RmrkBaseId, RmrkNftChild, RmrkThemeName, RmrkResourceId,38};3940pub use rmrk_unique_rpc::RmrkApiServer;4142#[rpc(server)]43#[async_trait]44pub trait UniqueApi<BlockHash, CrossAccountId, AccountId> {45	#[method(name = "unique_accountTokens")]46	fn account_tokens(47		&self,48		collection: CollectionId,49		account: CrossAccountId,50		at: Option<BlockHash>,51	) -> Result<Vec<TokenId>>;52	#[method(name = "unique_collectionTokens")]53	fn collection_tokens(54		&self,55		collection: CollectionId,56		at: Option<BlockHash>,57	) -> Result<Vec<TokenId>>;58	#[method(name = "unique_tokenExists")]59	fn token_exists(60		&self,61		collection: CollectionId,62		token: TokenId,63		at: Option<BlockHash>,64	) -> Result<bool>;6566	#[method(name = "unique_tokenOwner")]67	fn token_owner(68		&self,69		collection: CollectionId,70		token: TokenId,71		at: Option<BlockHash>,72	) -> Result<Option<CrossAccountId>>;73	#[method(name = "unique_topmostTokenOwner")]74	fn topmost_token_owner(75		&self,76		collection: CollectionId,77		token: TokenId,78		at: Option<BlockHash>,79	) -> Result<Option<CrossAccountId>>;80	#[method(name = "unique_tokenChildren")]81	fn token_children(82		&self,83		collection: CollectionId,84		token: TokenId,85		at: Option<BlockHash>,86	) -> Result<Vec<TokenChild>>;8788	#[method(name = "unique_collectionProperties")]89	fn collection_properties(90		&self,91		collection: CollectionId,92		keys: Option<Vec<String>>,93		at: Option<BlockHash>,94	) -> Result<Vec<Property>>;9596	#[method(name = "unique_tokenProperties")]97	fn token_properties(98		&self,99		collection: CollectionId,100		token_id: TokenId,101		keys: Option<Vec<String>>,102		at: Option<BlockHash>,103	) -> Result<Vec<Property>>;104105	#[method(name = "unique_propertyPermissions")]106	fn property_permissions(107		&self,108		collection: CollectionId,109		keys: Option<Vec<String>>,110		at: Option<BlockHash>,111	) -> Result<Vec<PropertyKeyPermission>>;112113	#[method(name = "unique_tokenData")]114	fn token_data(115		&self,116		collection: CollectionId,117		token_id: TokenId,118		keys: Option<Vec<String>>,119		at: Option<BlockHash>,120	) -> Result<TokenData<CrossAccountId>>;121122	#[method(name = "unique_totalSupply")]123	fn total_supply(&self, collection: CollectionId, at: Option<BlockHash>) -> Result<u32>;124	#[method(name = "unique_accountBalance")]125	fn account_balance(126		&self,127		collection: CollectionId,128		account: CrossAccountId,129		at: Option<BlockHash>,130	) -> Result<u32>;131	#[method(name = "unique_balance")]132	fn balance(133		&self,134		collection: CollectionId,135		account: CrossAccountId,136		token: TokenId,137		at: Option<BlockHash>,138	) -> Result<String>;139	#[method(name = "unique_allowance")]140	fn allowance(141		&self,142		collection: CollectionId,143		sender: CrossAccountId,144		spender: CrossAccountId,145		token: TokenId,146		at: Option<BlockHash>,147	) -> Result<String>;148149	#[method(name = "unique_adminlist")]150	fn adminlist(151		&self,152		collection: CollectionId,153		at: Option<BlockHash>,154	) -> Result<Vec<CrossAccountId>>;155	#[method(name = "unique_allowlist")]156	fn allowlist(157		&self,158		collection: CollectionId,159		at: Option<BlockHash>,160	) -> Result<Vec<CrossAccountId>>;161	#[method(name = "unique_allowed")]162	fn allowed(163		&self,164		collection: CollectionId,165		user: CrossAccountId,166		at: Option<BlockHash>,167	) -> Result<bool>;168	#[method(name = "unique_lastTokenId")]169	fn last_token_id(&self, collection: CollectionId, at: Option<BlockHash>) -> Result<TokenId>;170	#[method(name = "unique_collectionById")]171	fn collection_by_id(172		&self,173		collection: CollectionId,174		at: Option<BlockHash>,175	) -> Result<Option<RpcCollection<AccountId>>>;176	#[method(name = "unique_collectionStats")]177	fn collection_stats(&self, at: Option<BlockHash>) -> Result<CollectionStats>;178179	#[method(name = "unique_nextSponsored")]180	fn next_sponsored(181		&self,182		collection: CollectionId,183		account: CrossAccountId,184		token: TokenId,185		at: Option<BlockHash>,186	) -> Result<Option<u64>>;187188	#[method(name = "unique_effectiveCollectionLimits")]189	fn effective_collection_limits(190		&self,191		collection_id: CollectionId,192		at: Option<BlockHash>,193	) -> Result<Option<CollectionLimits>>;194195	#[method(name = "unique_totalPieces")]196	fn total_pieces(197		&self,198		collection_id: CollectionId,199		token_id: TokenId,200		at: Option<BlockHash>,201	) -> Result<Option<u128>>;202}203204mod rmrk_unique_rpc {205	use super::*;206207	#[rpc(server)]208	#[async_trait]209	pub trait RmrkApi<210		BlockHash,211		AccountId,212		CollectionInfo,213		NftInfo,214		ResourceInfo,215		PropertyInfo,216		BaseInfo,217		PartType,218		Theme,219	>220	{221		#[method(name = "rmrk_lastCollectionIdx")]222		/// Get the latest created collection id223		fn last_collection_idx(&self, at: Option<BlockHash>) -> Result<RmrkCollectionId>;224225		#[method(name = "rmrk_collectionById")]226		/// Get collection by id227		fn collection_by_id(228			&self,229			id: RmrkCollectionId,230			at: Option<BlockHash>,231		) -> Result<Option<CollectionInfo>>;232233		#[method(name = "rmrk_nftById")]234		/// Get NFT by collection id and NFT id235		fn nft_by_id(236			&self,237			collection_id: RmrkCollectionId,238			nft_id: RmrkNftId,239			at: Option<BlockHash>,240		) -> Result<Option<NftInfo>>;241242		#[method(name = "rmrk_accountTokens")]243		/// Get tokens owned by an account in a collection244		fn account_tokens(245			&self,246			account_id: AccountId,247			collection_id: RmrkCollectionId,248			at: Option<BlockHash>,249		) -> Result<Vec<RmrkNftId>>;250251		#[method(name = "rmrk_nftChildren")]252		/// Get NFT children253		fn nft_children(254			&self,255			collection_id: RmrkCollectionId,256			nft_id: RmrkNftId,257			at: Option<BlockHash>,258		) -> Result<Vec<RmrkNftChild>>;259260		#[method(name = "rmrk_collectionProperties")]261		/// Get collection properties262		fn collection_properties(263			&self,264			collection_id: RmrkCollectionId,265			filter_keys: Option<Vec<String>>,266			at: Option<BlockHash>,267		) -> Result<Vec<PropertyInfo>>;268269		#[method(name = "rmrk_nftProperties")]270		/// Get NFT properties271		fn nft_properties(272			&self,273			collection_id: RmrkCollectionId,274			nft_id: RmrkNftId,275			filter_keys: Option<Vec<String>>,276			at: Option<BlockHash>,277		) -> Result<Vec<PropertyInfo>>;278279		#[method(name = "rmrk_nftResources")]280		/// Get NFT resources281		fn nft_resources(282			&self,283			collection_id: RmrkCollectionId,284			nft_id: RmrkNftId,285			at: Option<BlockHash>,286		) -> Result<Vec<ResourceInfo>>;287288		#[method(name = "rmrk_nftResourcePriority")]289		/// Get NFT resource priority290		fn nft_resource_priority(291			&self,292			collection_id: RmrkCollectionId,293			nft_id: RmrkNftId,294			resource_id: RmrkResourceId,295			at: Option<BlockHash>,296		) -> Result<Option<u32>>;297298		#[method(name = "rmrk_base")]299		/// Get base info300		fn base(&self, base_id: RmrkBaseId, at: Option<BlockHash>) -> Result<Option<BaseInfo>>;301302		#[method(name = "rmrk_baseParts")]303		/// Get all Base's parts304		fn base_parts(&self, base_id: RmrkBaseId, at: Option<BlockHash>) -> Result<Vec<PartType>>;305306		#[method(name = "rmrk_themeNames")]307		fn theme_names(308			&self,309			base_id: RmrkBaseId,310			at: Option<BlockHash>,311		) -> Result<Vec<RmrkThemeName>>;312313		#[method(name = "rmrk_themes")]314		fn theme(315			&self,316			base_id: RmrkBaseId,317			theme_name: String,318			filter_keys: Option<Vec<String>>,319			at: Option<BlockHash>,320		) -> Result<Option<Theme>>;321	}322}323324pub struct Unique<C, P> {325	client: Arc<C>,326	_marker: std::marker::PhantomData<P>,327}328329impl<C, P> Unique<C, P> {330	pub fn new(client: Arc<C>) -> Self {331		Self {332			client,333			_marker: Default::default(),334		}335	}336}337338pub struct Rmrk<C, P> {339	client: Arc<C>,340	_marker: std::marker::PhantomData<P>,341}342343impl<C, P> Rmrk<C, P> {344	pub fn new(client: Arc<C>) -> Self {345		Self {346			client,347			_marker: Default::default(),348		}349	}350}351352macro_rules! pass_method {353	(354		$method_name:ident(355			$($(#[map(|$map_arg:ident| $map:expr)])? $name:ident: $ty:ty),* $(,)?356		) -> $result:ty $(=> $mapper:expr)?,357		//$runtime_name:ident $(<$($lt: tt),+>)*358		$runtime_api_macro:ident359		$(; changed_in $ver:expr, $changed_method_name:ident ($($changed_name:expr), * $(,)?) => $fixer:expr)*360	) => {361		fn $method_name(362			&self,363			$(364				$name: $ty,365			)*366			at: Option<<Block as BlockT>::Hash>,367		) -> Result<$result> {368			let api = self.client.runtime_api();369			let at = BlockId::hash(at.unwrap_or_else(|| self.client.info().best_hash));370			let _api_version = if let Ok(Some(api_version)) =371				api.api_version::<$runtime_api_macro!()>(&at)372			{373				api_version374			} else {375				// unreachable for our runtime376				return Err(anyhow!("api is not available").into())377			};378379			let result = $(if _api_version < $ver {380				api.$changed_method_name(&at, $($changed_name),*).map(|r| r.map($fixer))381			} else)*382			{ api.$method_name(&at, $($((|$map_arg: $ty| $map))? ($name)),*) };383384			Ok(result385				.map_err(|e| anyhow!("unable to query: {e}"))?386				.map_err(|e| anyhow!("runtime error: {e:?}"))$(.map($mapper))??)387		}388	};389}390391macro_rules! unique_api {392	() => {393		dyn UniqueRuntimeApi<Block, CrossAccountId, AccountId>394	};395}396397macro_rules! rmrk_api {398	() => {399		dyn RmrkRuntimeApi<Block, AccountId, CollectionInfo, NftInfo, ResourceInfo, PropertyInfo, BaseInfo, PartType, Theme>400	};401}402403#[allow(deprecated)]404impl<C, Block, CrossAccountId, AccountId>405	UniqueApiServer<<Block as BlockT>::Hash, CrossAccountId, AccountId> for Unique<C, Block>406where407	Block: BlockT,408	AccountId: Decode,409	C: 'static + ProvideRuntimeApi<Block> + HeaderBackend<Block>,410	C::Api: UniqueRuntimeApi<Block, CrossAccountId, AccountId>,411	CrossAccountId: pallet_evm::account::CrossAccountId<AccountId>,412{413	pass_method!(414		account_tokens(collection: CollectionId, account: CrossAccountId) -> Vec<TokenId>, unique_api415	);416	pass_method!(417		collection_tokens(collection: CollectionId) -> Vec<TokenId>, unique_api418	);419	pass_method!(420		token_exists(collection: CollectionId, token: TokenId) -> bool, unique_api421	);422	pass_method!(423		token_owner(collection: CollectionId, token: TokenId) -> Option<CrossAccountId>, unique_api424	);425	pass_method!(426		topmost_token_owner(collection: CollectionId, token: TokenId) -> Option<CrossAccountId>, unique_api427	);428	pass_method!(token_children(collection: CollectionId, token: TokenId) -> Vec<TokenChild>, unique_api);429	pass_method!(total_supply(collection: CollectionId) -> u32, unique_api);430	pass_method!(account_balance(collection: CollectionId, account: CrossAccountId) -> u32, unique_api);431	pass_method!(balance(collection: CollectionId, account: CrossAccountId, token: TokenId) -> String => |v| v.to_string(), unique_api);432	pass_method!(433		allowance(collection: CollectionId, sender: CrossAccountId, spender: CrossAccountId, token: TokenId) -> String => |v| v.to_string(),434		unique_api435	);436437	pass_method!(collection_properties(438		collection: CollectionId,439440		#[map(|keys| string_keys_to_bytes_keys(keys))]441		keys: Option<Vec<String>>442	) -> Vec<Property>, unique_api);443444	pass_method!(token_properties(445		collection: CollectionId,446		token_id: TokenId,447448		#[map(|keys| string_keys_to_bytes_keys(keys))]449		keys: Option<Vec<String>>450	) -> Vec<Property>, unique_api);451452	pass_method!(property_permissions(453		collection: CollectionId,454455		#[map(|keys| string_keys_to_bytes_keys(keys))]456		keys: Option<Vec<String>>457	) -> Vec<PropertyKeyPermission>, unique_api);458459	pass_method!(token_data(460		collection: CollectionId,461		token_id: TokenId,462463		#[map(|keys| string_keys_to_bytes_keys(keys))]464		keys: Option<Vec<String>>,465	) -> TokenData<CrossAccountId>, unique_api);466467	pass_method!(adminlist(collection: CollectionId) -> Vec<CrossAccountId>, unique_api);468	pass_method!(allowlist(collection: CollectionId) -> Vec<CrossAccountId>, unique_api);469	pass_method!(allowed(collection: CollectionId, user: CrossAccountId) -> bool, unique_api);470	pass_method!(last_token_id(collection: CollectionId) -> TokenId, unique_api);471	pass_method!(collection_by_id(collection: CollectionId) -> Option<RpcCollection<AccountId>>, unique_api);472	pass_method!(collection_stats() -> CollectionStats, unique_api);473	pass_method!(next_sponsored(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Option<u64>, unique_api);474	pass_method!(effective_collection_limits(collection_id: CollectionId) -> Option<CollectionLimits>, unique_api);475	pass_method!(total_pieces(collection_id: CollectionId, token_id: TokenId) -> Option<u128>, unique_api);476}477478#[allow(deprecated)]479impl<480		C,481		Block,482		AccountId,483		CollectionInfo,484		NftInfo,485		ResourceInfo,486		PropertyInfo,487		BaseInfo,488		PartType,489		Theme,490	>491	rmrk_unique_rpc::RmrkApiServer<492		<Block as BlockT>::Hash,493		AccountId,494		CollectionInfo,495		NftInfo,496		ResourceInfo,497		PropertyInfo,498		BaseInfo,499		PartType,500		Theme,501	> for Rmrk<C, Block>502where503	C: Send + Sync + 'static + ProvideRuntimeApi<Block> + HeaderBackend<Block>,504	C::Api: RmrkRuntimeApi<505		Block,506		AccountId,507		CollectionInfo,508		NftInfo,509		ResourceInfo,510		PropertyInfo,511		BaseInfo,512		PartType,513		Theme,514	>,515	AccountId: Decode + Encode,516	CollectionInfo: Decode,517	NftInfo: Decode,518	ResourceInfo: Decode,519	PropertyInfo: Decode,520	BaseInfo: Decode,521	PartType: Decode,522	Theme: Decode,523	Block: BlockT,524{525	pass_method!(last_collection_idx() -> RmrkCollectionId, rmrk_api);526	pass_method!(collection_by_id(id: RmrkCollectionId) -> Option<CollectionInfo>, rmrk_api);527	pass_method!(nft_by_id(collection_id: RmrkCollectionId, nft_id: RmrkNftId) -> Option<NftInfo>, rmrk_api);528	pass_method!(account_tokens(account_id: AccountId, collection_id: RmrkCollectionId) -> Vec<RmrkNftId>, rmrk_api);529	pass_method!(nft_children(collection_id: RmrkCollectionId, nft_id: RmrkNftId) -> Vec<RmrkNftChild>, rmrk_api);530	pass_method!(531		collection_properties(532			collection_id: RmrkCollectionId,533534			#[map(|keys| string_keys_to_bytes_keys(keys))]535			filter_keys: Option<Vec<String>>536		) -> Vec<PropertyInfo>,537		rmrk_api538	);539	pass_method!(540		nft_properties(541			collection_id: RmrkCollectionId,542			nft_id: RmrkNftId,543544			#[map(|keys| string_keys_to_bytes_keys(keys))]545			filter_keys: Option<Vec<String>>546		) -> Vec<PropertyInfo>,547		rmrk_api548	);549	pass_method!(nft_resources(collection_id: RmrkCollectionId, nft_id: RmrkNftId) -> Vec<ResourceInfo>, rmrk_api);550	pass_method!(nft_resource_priority(collection_id: RmrkCollectionId, nft_id: RmrkNftId, resource_id: RmrkResourceId) -> Option<u32>, rmrk_api);551	pass_method!(base(base_id: RmrkBaseId) -> Option<BaseInfo>, rmrk_api);552	pass_method!(base_parts(base_id: RmrkBaseId) -> Vec<PartType>, rmrk_api);553	pass_method!(theme_names(base_id: RmrkBaseId) -> Vec<RmrkThemeName>, rmrk_api);554	pass_method!(555		theme(556			base_id: RmrkBaseId,557558			#[map(|n| n.into_bytes())]559			theme_name: String,560561			#[map(|keys| string_keys_to_bytes_keys(keys))]562			filter_keys: Option<Vec<String>>563		) -> Option<Theme>, rmrk_api);564}565566fn string_keys_to_bytes_keys(keys: Option<Vec<String>>) -> Option<Vec<Vec<u8>>> {567	keys.map(|keys| keys.into_iter().map(|key| key.into_bytes()).collect())568}
after · client/rpc/src/lib.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/>.1617// Original License18use std::sync::Arc;1920use codec::{Decode, Encode};21use jsonrpsee::{22	core::{RpcResult as Result},23	proc_macros::rpc,24};25use anyhow::anyhow;26use up_data_structs::{27	RpcCollection, CollectionId, CollectionStats, CollectionLimits, TokenId, Property,28	PropertyKeyPermission, TokenData, TokenChild,29};30use sp_api::{BlockId, BlockT, ProvideRuntimeApi, ApiExt};31use sp_blockchain::HeaderBackend;32use up_rpc::UniqueApi as UniqueRuntimeApi;3334// RMRK35use rmrk_rpc::RmrkApi as RmrkRuntimeApi;36use up_data_structs::{37	RmrkCollectionId, RmrkNftId, RmrkBaseId, RmrkNftChild, RmrkThemeName, RmrkResourceId,38};3940pub use rmrk_unique_rpc::RmrkApiServer;4142#[rpc(server)]43#[async_trait]44pub trait UniqueApi<BlockHash, CrossAccountId, AccountId> {45	#[method(name = "unique_accountTokens")]46	fn account_tokens(47		&self,48		collection: CollectionId,49		account: CrossAccountId,50		at: Option<BlockHash>,51	) -> Result<Vec<TokenId>>;52	#[method(name = "unique_collectionTokens")]53	fn collection_tokens(54		&self,55		collection: CollectionId,56		at: Option<BlockHash>,57	) -> Result<Vec<TokenId>>;58	#[method(name = "unique_tokenExists")]59	fn token_exists(60		&self,61		collection: CollectionId,62		token: TokenId,63		at: Option<BlockHash>,64	) -> Result<bool>;6566	#[method(name = "unique_tokenOwner")]67	fn token_owner(68		&self,69		collection: CollectionId,70		token: TokenId,71		at: Option<BlockHash>,72	) -> Result<Option<CrossAccountId>>;7374	#[method(name = "unique_tokenOwners")]75	fn token_owners(76		&self,77		collection: CollectionId,78		token: TokenId,79		at: Option<BlockHash>,80	) -> Result<Vec<CrossAccountId>>;8182	#[method(name = "unique_topmostTokenOwner")]83	fn topmost_token_owner(84		&self,85		collection: CollectionId,86		token: TokenId,87		at: Option<BlockHash>,88	) -> Result<Option<CrossAccountId>>;89	#[method(name = "unique_tokenChildren")]90	fn token_children(91		&self,92		collection: CollectionId,93		token: TokenId,94		at: Option<BlockHash>,95	) -> Result<Vec<TokenChild>>;9697	#[method(name = "unique_collectionProperties")]98	fn collection_properties(99		&self,100		collection: CollectionId,101		keys: Option<Vec<String>>,102		at: Option<BlockHash>,103	) -> Result<Vec<Property>>;104105	#[method(name = "unique_tokenProperties")]106	fn token_properties(107		&self,108		collection: CollectionId,109		token_id: TokenId,110		keys: Option<Vec<String>>,111		at: Option<BlockHash>,112	) -> Result<Vec<Property>>;113114	#[method(name = "unique_propertyPermissions")]115	fn property_permissions(116		&self,117		collection: CollectionId,118		keys: Option<Vec<String>>,119		at: Option<BlockHash>,120	) -> Result<Vec<PropertyKeyPermission>>;121122	#[method(name = "unique_tokenData")]123	fn token_data(124		&self,125		collection: CollectionId,126		token_id: TokenId,127		keys: Option<Vec<String>>,128		at: Option<BlockHash>,129	) -> Result<TokenData<CrossAccountId>>;130131	#[method(name = "unique_totalSupply")]132	fn total_supply(&self, collection: CollectionId, at: Option<BlockHash>) -> Result<u32>;133	#[method(name = "unique_accountBalance")]134	fn account_balance(135		&self,136		collection: CollectionId,137		account: CrossAccountId,138		at: Option<BlockHash>,139	) -> Result<u32>;140	#[method(name = "unique_balance")]141	fn balance(142		&self,143		collection: CollectionId,144		account: CrossAccountId,145		token: TokenId,146		at: Option<BlockHash>,147	) -> Result<String>;148	#[method(name = "unique_allowance")]149	fn allowance(150		&self,151		collection: CollectionId,152		sender: CrossAccountId,153		spender: CrossAccountId,154		token: TokenId,155		at: Option<BlockHash>,156	) -> Result<String>;157158	#[method(name = "unique_adminlist")]159	fn adminlist(160		&self,161		collection: CollectionId,162		at: Option<BlockHash>,163	) -> Result<Vec<CrossAccountId>>;164	#[method(name = "unique_allowlist")]165	fn allowlist(166		&self,167		collection: CollectionId,168		at: Option<BlockHash>,169	) -> Result<Vec<CrossAccountId>>;170	#[method(name = "unique_allowed")]171	fn allowed(172		&self,173		collection: CollectionId,174		user: CrossAccountId,175		at: Option<BlockHash>,176	) -> Result<bool>;177	#[method(name = "unique_lastTokenId")]178	fn last_token_id(&self, collection: CollectionId, at: Option<BlockHash>) -> Result<TokenId>;179	#[method(name = "unique_collectionById")]180	fn collection_by_id(181		&self,182		collection: CollectionId,183		at: Option<BlockHash>,184	) -> Result<Option<RpcCollection<AccountId>>>;185	#[method(name = "unique_collectionStats")]186	fn collection_stats(&self, at: Option<BlockHash>) -> Result<CollectionStats>;187188	#[method(name = "unique_nextSponsored")]189	fn next_sponsored(190		&self,191		collection: CollectionId,192		account: CrossAccountId,193		token: TokenId,194		at: Option<BlockHash>,195	) -> Result<Option<u64>>;196197	#[method(name = "unique_effectiveCollectionLimits")]198	fn effective_collection_limits(199		&self,200		collection_id: CollectionId,201		at: Option<BlockHash>,202	) -> Result<Option<CollectionLimits>>;203204	#[method(name = "unique_totalPieces")]205	fn total_pieces(206		&self,207		collection_id: CollectionId,208		token_id: TokenId,209		at: Option<BlockHash>,210	) -> Result<Option<u128>>;211}212213mod rmrk_unique_rpc {214	use super::*;215216	#[rpc(server)]217	#[async_trait]218	pub trait RmrkApi<219		BlockHash,220		AccountId,221		CollectionInfo,222		NftInfo,223		ResourceInfo,224		PropertyInfo,225		BaseInfo,226		PartType,227		Theme,228	>229	{230		#[method(name = "rmrk_lastCollectionIdx")]231		/// Get the latest created collection id232		fn last_collection_idx(&self, at: Option<BlockHash>) -> Result<RmrkCollectionId>;233234		#[method(name = "rmrk_collectionById")]235		/// Get collection by id236		fn collection_by_id(237			&self,238			id: RmrkCollectionId,239			at: Option<BlockHash>,240		) -> Result<Option<CollectionInfo>>;241242		#[method(name = "rmrk_nftById")]243		/// Get NFT by collection id and NFT id244		fn nft_by_id(245			&self,246			collection_id: RmrkCollectionId,247			nft_id: RmrkNftId,248			at: Option<BlockHash>,249		) -> Result<Option<NftInfo>>;250251		#[method(name = "rmrk_accountTokens")]252		/// Get tokens owned by an account in a collection253		fn account_tokens(254			&self,255			account_id: AccountId,256			collection_id: RmrkCollectionId,257			at: Option<BlockHash>,258		) -> Result<Vec<RmrkNftId>>;259260		#[method(name = "rmrk_nftChildren")]261		/// Get NFT children262		fn nft_children(263			&self,264			collection_id: RmrkCollectionId,265			nft_id: RmrkNftId,266			at: Option<BlockHash>,267		) -> Result<Vec<RmrkNftChild>>;268269		#[method(name = "rmrk_collectionProperties")]270		/// Get collection properties271		fn collection_properties(272			&self,273			collection_id: RmrkCollectionId,274			filter_keys: Option<Vec<String>>,275			at: Option<BlockHash>,276		) -> Result<Vec<PropertyInfo>>;277278		#[method(name = "rmrk_nftProperties")]279		/// Get NFT properties280		fn nft_properties(281			&self,282			collection_id: RmrkCollectionId,283			nft_id: RmrkNftId,284			filter_keys: Option<Vec<String>>,285			at: Option<BlockHash>,286		) -> Result<Vec<PropertyInfo>>;287288		#[method(name = "rmrk_nftResources")]289		/// Get NFT resources290		fn nft_resources(291			&self,292			collection_id: RmrkCollectionId,293			nft_id: RmrkNftId,294			at: Option<BlockHash>,295		) -> Result<Vec<ResourceInfo>>;296297		#[method(name = "rmrk_nftResourcePriority")]298		/// Get NFT resource priority299		fn nft_resource_priority(300			&self,301			collection_id: RmrkCollectionId,302			nft_id: RmrkNftId,303			resource_id: RmrkResourceId,304			at: Option<BlockHash>,305		) -> Result<Option<u32>>;306307		#[method(name = "rmrk_base")]308		/// Get base info309		fn base(&self, base_id: RmrkBaseId, at: Option<BlockHash>) -> Result<Option<BaseInfo>>;310311		#[method(name = "rmrk_baseParts")]312		/// Get all Base's parts313		fn base_parts(&self, base_id: RmrkBaseId, at: Option<BlockHash>) -> Result<Vec<PartType>>;314315		#[method(name = "rmrk_themeNames")]316		fn theme_names(317			&self,318			base_id: RmrkBaseId,319			at: Option<BlockHash>,320		) -> Result<Vec<RmrkThemeName>>;321322		#[method(name = "rmrk_themes")]323		fn theme(324			&self,325			base_id: RmrkBaseId,326			theme_name: String,327			filter_keys: Option<Vec<String>>,328			at: Option<BlockHash>,329		) -> Result<Option<Theme>>;330	}331}332333pub struct Unique<C, P> {334	client: Arc<C>,335	_marker: std::marker::PhantomData<P>,336}337338impl<C, P> Unique<C, P> {339	pub fn new(client: Arc<C>) -> Self {340		Self {341			client,342			_marker: Default::default(),343		}344	}345}346347pub struct Rmrk<C, P> {348	client: Arc<C>,349	_marker: std::marker::PhantomData<P>,350}351352impl<C, P> Rmrk<C, P> {353	pub fn new(client: Arc<C>) -> Self {354		Self {355			client,356			_marker: Default::default(),357		}358	}359}360361macro_rules! pass_method {362	(363		$method_name:ident(364			$($(#[map(|$map_arg:ident| $map:expr)])? $name:ident: $ty:ty),* $(,)?365		) -> $result:ty $(=> $mapper:expr)?,366		//$runtime_name:ident $(<$($lt: tt),+>)*367		$runtime_api_macro:ident368		$(; changed_in $ver:expr, $changed_method_name:ident ($($changed_name:expr), * $(,)?) => $fixer:expr)*369	) => {370		fn $method_name(371			&self,372			$(373				$name: $ty,374			)*375			at: Option<<Block as BlockT>::Hash>,376		) -> Result<$result> {377			let api = self.client.runtime_api();378			let at = BlockId::hash(at.unwrap_or_else(|| self.client.info().best_hash));379			let _api_version = if let Ok(Some(api_version)) =380				api.api_version::<$runtime_api_macro!()>(&at)381			{382				api_version383			} else {384				// unreachable for our runtime385				return Err(anyhow!("api is not available").into())386			};387388			let result = $(if _api_version < $ver {389				api.$changed_method_name(&at, $($changed_name),*).map(|r| r.map($fixer))390			} else)*391			{ api.$method_name(&at, $($((|$map_arg: $ty| $map))? ($name)),*) };392393			Ok(result394				.map_err(|e| anyhow!("unable to query: {e}"))?395				.map_err(|e| anyhow!("runtime error: {e:?}"))$(.map($mapper))??)396		}397	};398}399400macro_rules! unique_api {401	() => {402		dyn UniqueRuntimeApi<Block, CrossAccountId, AccountId>403	};404}405406macro_rules! rmrk_api {407	() => {408		dyn RmrkRuntimeApi<Block, AccountId, CollectionInfo, NftInfo, ResourceInfo, PropertyInfo, BaseInfo, PartType, Theme>409	};410}411412#[allow(deprecated)]413impl<C, Block, CrossAccountId, AccountId>414	UniqueApiServer<<Block as BlockT>::Hash, CrossAccountId, AccountId> for Unique<C, Block>415where416	Block: BlockT,417	AccountId: Decode,418	C: 'static + ProvideRuntimeApi<Block> + HeaderBackend<Block>,419	C::Api: UniqueRuntimeApi<Block, CrossAccountId, AccountId>,420	CrossAccountId: pallet_evm::account::CrossAccountId<AccountId>,421{422	pass_method!(423		account_tokens(collection: CollectionId, account: CrossAccountId) -> Vec<TokenId>, unique_api424	);425	pass_method!(426		collection_tokens(collection: CollectionId) -> Vec<TokenId>, unique_api427	);428	pass_method!(429		token_exists(collection: CollectionId, token: TokenId) -> bool, unique_api430	);431	pass_method!(432		token_owner(collection: CollectionId, token: TokenId) -> Option<CrossAccountId>, unique_api433	);434	pass_method!(435		topmost_token_owner(collection: CollectionId, token: TokenId) -> Option<CrossAccountId>, unique_api436	);437	pass_method!(token_children(collection: CollectionId, token: TokenId) -> Vec<TokenChild>, unique_api);438	pass_method!(total_supply(collection: CollectionId) -> u32, unique_api);439	pass_method!(account_balance(collection: CollectionId, account: CrossAccountId) -> u32, unique_api);440	pass_method!(balance(collection: CollectionId, account: CrossAccountId, token: TokenId) -> String => |v| v.to_string(), unique_api);441	pass_method!(442		allowance(collection: CollectionId, sender: CrossAccountId, spender: CrossAccountId, token: TokenId) -> String => |v| v.to_string(),443		unique_api444	);445446	pass_method!(collection_properties(447		collection: CollectionId,448449		#[map(|keys| string_keys_to_bytes_keys(keys))]450		keys: Option<Vec<String>>451	) -> Vec<Property>, unique_api);452453	pass_method!(token_properties(454		collection: CollectionId,455		token_id: TokenId,456457		#[map(|keys| string_keys_to_bytes_keys(keys))]458		keys: Option<Vec<String>>459	) -> Vec<Property>, unique_api);460461	pass_method!(property_permissions(462		collection: CollectionId,463464		#[map(|keys| string_keys_to_bytes_keys(keys))]465		keys: Option<Vec<String>>466	) -> Vec<PropertyKeyPermission>, unique_api);467468	pass_method!(token_data(469		collection: CollectionId,470		token_id: TokenId,471472		#[map(|keys| string_keys_to_bytes_keys(keys))]473		keys: Option<Vec<String>>,474	) -> TokenData<CrossAccountId>, unique_api);475476	pass_method!(adminlist(collection: CollectionId) -> Vec<CrossAccountId>, unique_api);477	pass_method!(allowlist(collection: CollectionId) -> Vec<CrossAccountId>, unique_api);478	pass_method!(allowed(collection: CollectionId, user: CrossAccountId) -> bool, unique_api);479	pass_method!(last_token_id(collection: CollectionId) -> TokenId, unique_api);480	pass_method!(collection_by_id(collection: CollectionId) -> Option<RpcCollection<AccountId>>, unique_api);481	pass_method!(collection_stats() -> CollectionStats, unique_api);482	pass_method!(next_sponsored(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Option<u64>, unique_api);483	pass_method!(effective_collection_limits(collection_id: CollectionId) -> Option<CollectionLimits>, unique_api);484	pass_method!(total_pieces(collection_id: CollectionId, token_id: TokenId) -> Option<u128>, unique_api);485	pass_method!(token_owners(collection: CollectionId, token: TokenId) -> Vec<CrossAccountId>, unique_api);486}487488#[allow(deprecated)]489impl<490		C,491		Block,492		AccountId,493		CollectionInfo,494		NftInfo,495		ResourceInfo,496		PropertyInfo,497		BaseInfo,498		PartType,499		Theme,500	>501	rmrk_unique_rpc::RmrkApiServer<502		<Block as BlockT>::Hash,503		AccountId,504		CollectionInfo,505		NftInfo,506		ResourceInfo,507		PropertyInfo,508		BaseInfo,509		PartType,510		Theme,511	> for Rmrk<C, Block>512where513	C: Send + Sync + 'static + ProvideRuntimeApi<Block> + HeaderBackend<Block>,514	C::Api: RmrkRuntimeApi<515		Block,516		AccountId,517		CollectionInfo,518		NftInfo,519		ResourceInfo,520		PropertyInfo,521		BaseInfo,522		PartType,523		Theme,524	>,525	AccountId: Decode + Encode,526	CollectionInfo: Decode,527	NftInfo: Decode,528	ResourceInfo: Decode,529	PropertyInfo: Decode,530	BaseInfo: Decode,531	PartType: Decode,532	Theme: Decode,533	Block: BlockT,534{535	pass_method!(last_collection_idx() -> RmrkCollectionId, rmrk_api);536	pass_method!(collection_by_id(id: RmrkCollectionId) -> Option<CollectionInfo>, rmrk_api);537	pass_method!(nft_by_id(collection_id: RmrkCollectionId, nft_id: RmrkNftId) -> Option<NftInfo>, rmrk_api);538	pass_method!(account_tokens(account_id: AccountId, collection_id: RmrkCollectionId) -> Vec<RmrkNftId>, rmrk_api);539	pass_method!(nft_children(collection_id: RmrkCollectionId, nft_id: RmrkNftId) -> Vec<RmrkNftChild>, rmrk_api);540	pass_method!(541		collection_properties(542			collection_id: RmrkCollectionId,543544			#[map(|keys| string_keys_to_bytes_keys(keys))]545			filter_keys: Option<Vec<String>>546		) -> Vec<PropertyInfo>,547		rmrk_api548	);549	pass_method!(550		nft_properties(551			collection_id: RmrkCollectionId,552			nft_id: RmrkNftId,553554			#[map(|keys| string_keys_to_bytes_keys(keys))]555			filter_keys: Option<Vec<String>>556		) -> Vec<PropertyInfo>,557		rmrk_api558	);559	pass_method!(nft_resources(collection_id: RmrkCollectionId, nft_id: RmrkNftId) -> Vec<ResourceInfo>, rmrk_api);560	pass_method!(nft_resource_priority(collection_id: RmrkCollectionId, nft_id: RmrkNftId, resource_id: RmrkResourceId) -> Option<u32>, rmrk_api);561	pass_method!(base(base_id: RmrkBaseId) -> Option<BaseInfo>, rmrk_api);562	pass_method!(base_parts(base_id: RmrkBaseId) -> Vec<PartType>, rmrk_api);563	pass_method!(theme_names(base_id: RmrkBaseId) -> Vec<RmrkThemeName>, rmrk_api);564	pass_method!(565		theme(566			base_id: RmrkBaseId,567568			#[map(|n| n.into_bytes())]569			theme_name: String,570571			#[map(|keys| string_keys_to_bytes_keys(keys))]572			filter_keys: Option<Vec<String>>573		) -> Option<Theme>, rmrk_api);574}575576fn string_keys_to_bytes_keys(keys: Option<Vec<String>>) -> Option<Vec<Vec<u8>>> {577	keys.map(|keys| keys.into_iter().map(|key| key.into_bytes()).collect())578}
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
--- a/pallets/fungible/src/common.rs
+++ b/pallets/fungible/src/common.rs
@@ -362,6 +362,10 @@
 		None
 	}
 
+	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/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