git.delta.rocks / unique-network / refs/commits / 448629b28a12

--- a/node/cli/src/command.rs
+++ b/node/cli/src/command.rs
@@ -425,7 +425,7 @@
 				.map(|cfg| &cfg.registry);
 			let task_manager =
 				sc_service::TaskManager::new(runner.config().tokio_handle.clone(), *registry)
-					.map_err(|e| format!("Error: {:?}", e))?;
+					.map_err(|e| format!("Error: {e:?}"))?;
 			let info_provider = Some(timestamp_with_aura_info(12000));
 
 			runner.async_run(|config| -> Result<(Pin<Box<dyn Future<Output = _>>>, _)> {

--- a/pallets/common/src/eth.rs
+++ b/pallets/common/src/eth.rs
@@ -119,7 +119,7 @@
 		} else if self.sub == Default::default() {
 			Ok(Some(T::CrossAccountId::from_eth(self.eth)))
 		} else {
-			Err(format!("All fields of cross account is non zeroed {:?}", self).into())
+			Err(format!("All fields of cross account is non zeroed {self:?}").into())
 		}
 	}
 

--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -26,7 +26,7 @@
 	char::{REPLACEMENT_CHARACTER, decode_utf16},
 	convert::TryInto,
 };
-use evm_coder::{abi::AbiType, ToLog, generate_stubgen, solidity_interface, types::*};
+use evm_coder::{abi::AbiType, AbiCoder, ToLog, generate_stubgen, solidity_interface, types::*};
 use frame_support::BoundedVec;
 use up_data_structs::{
 	TokenId, PropertyPermission, PropertyKeyPermission, Property, CollectionId, PropertyKey,
@@ -64,6 +64,15 @@
 	},
 }
 
+/// Token minting parameters
+#[derive(AbiCoder, Default, Debug)]
+pub struct MintTokenData {
+	/// Minted token owner
+	pub owner: eth::CrossAddress,
+	/// Minted token properties
+	pub properties: Vec<eth::Property>,
+}
+
 frontier_contract! {
 	macro_rules! NonfungibleHandle_result {...}
 	impl<T: Config> Contract for NonfungibleHandle<T> {...}
@@ -981,13 +990,41 @@
 		Ok(true)
 	}
 
+	/// @notice Function to mint a token.
+	/// @param data Array of pairs of token owner and token's properties for minted token
+	#[weight(<SelfWeightOf<T>>::create_multiple_items(data.len() as u32) + <SelfWeightOf<T>>::set_token_properties(data.len() as u32))]
+	fn mint_bulk_cross(&mut self, caller: Caller, data: Vec<MintTokenData>) -> Result<bool> {
+		let caller = T::CrossAccountId::from_eth(caller);
+		let budget = self
+			.recorder
+			.weight_calls_budget(<StructureWeight<T>>::find_parent());
+
+		let mut create_nft_data = Vec::with_capacity(data.len());
+		for MintTokenData { owner, properties } in data {
+			let owner = owner.into_sub_cross_account::<T>()?;
+			create_nft_data.push(CreateItemData::<T> {
+				properties: properties
+					.into_iter()
+					.map(|property| property.try_into())
+					.collect::<Result<Vec<_>>>()?
+					.try_into()
+					.map_err(|_| "too many properties")?,
+				owner,
+			});
+		}
+
+		<Pallet<T>>::create_multiple_items(self, &caller, create_nft_data, &budget)
+			.map_err(dispatch_to_evm::<T>)?;
+		Ok(true)
+	}
+
 	/// @notice Function to mint multiple tokens with the given tokenUris.
 	/// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive
 	///  numbers and first number should be obtained with `nextTokenId` method
 	/// @param to The new owner
 	/// @param tokens array of pairs of token ID and token URI for minted tokens
 	#[solidity(hide, rename_selector = "mintBulkWithTokenURI")]
-	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32)  + <SelfWeightOf<T>>::set_token_properties(tokens.len() as u32))]
+	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32) + <SelfWeightOf<T>>::set_token_properties(tokens.len() as u32))]
 	fn mint_bulk_with_token_uri(
 		&mut self,
 		caller: Caller,

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--- a/pallets/nonfungible/src/stubs/UniqueNFT.sol
+++ b/pallets/nonfungible/src/stubs/UniqueNFT.sol
@@ -800,7 +800,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x307b061a
+/// @dev the ERC-165 identifier for this interface is 0x9b397d16
 contract ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -997,6 +997,17 @@
 	// 	return false;
 	// }
 
+	/// @notice Function to mint a token.
+	/// @param data Array of pairs of token owner and token's properties for minted token
+	/// @dev EVM selector for this function is: 0xab427b0c,
+	///  or in textual repr: mintBulkCross(((address,uint256),(string,bytes)[])[])
+	function mintBulkCross(MintTokenData[] memory data) public returns (bool) {
+		require(false, stub_error);
+		data;
+		dummy = 0;
+		return false;
+	}
+
 	// /// @notice Function to mint multiple tokens with the given tokenUris.
 	// /// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive
 	// ///  numbers and first number should be obtained with `nextTokenId` method
@@ -1044,6 +1055,14 @@
 	string uri;
 }
 
+/// Token minting parameters
+struct MintTokenData {
+	/// Minted token owner
+	CrossAddress owner;
+	/// Minted token properties
+	Property[] properties;
+}
+
 /// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 /// @dev See https://eips.ethereum.org/EIPS/eip-721
 /// @dev the ERC-165 identifier for this interface is 0x780e9d63

--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -26,7 +26,7 @@
 	char::{REPLACEMENT_CHARACTER, decode_utf16},
 	convert::TryInto,
 };
-use evm_coder::{abi::AbiType, ToLog, generate_stubgen, solidity_interface, types::*};
+use evm_coder::{abi::AbiType, AbiCoder, ToLog, generate_stubgen, solidity_interface, types::*};
 use frame_support::{BoundedBTreeMap, BoundedVec};
 use pallet_common::{
 	CollectionHandle, CollectionPropertyPermissions, CommonCollectionOperations,
@@ -71,6 +71,24 @@
 	},
 }
 
+/// Token minting parameters
+#[derive(AbiCoder, Default, Debug)]
+pub struct OwnerPieces {
+	/// Minted token owner
+	pub owner: eth::CrossAddress,
+	/// Number of token pieces
+	pub pieces: u128,
+}
+
+/// Token minting parameters
+#[derive(AbiCoder, Default, Debug)]
+pub struct MintTokenData {
+	/// Minted token owner and number of pieces
+	pub owners: Vec<OwnerPieces>,
+	/// Minted token properties
+	pub properties: Vec<eth::Property>,
+}
+
 /// @title A contract that allows to set and delete token properties and change token property permissions.
 #[solidity_interface(name = TokenProperties, events(ERC721TokenEvent), enum(derive(PreDispatch)), enum_attr(weight))]
 impl<T: Config> RefungibleHandle<T> {
@@ -1021,6 +1039,55 @@
 		Ok(true)
 	}
 
+	/// @notice Function to mint a token.
+	/// @param tokenProperties Properties of minted token
+	#[weight(if token_properties.len() == 1 {
+		<SelfWeightOf<T>>::create_multiple_items_ex_multiple_owners(token_properties.iter().next().unwrap().owners.len() as u32)
+	} else {
+		<SelfWeightOf<T>>::create_multiple_items_ex_multiple_items(token_properties.len() as u32)
+	} + <SelfWeightOf<T>>::set_token_properties(token_properties.len() as u32))]
+	fn mint_bulk_cross(
+		&mut self,
+		caller: Caller,
+		token_properties: Vec<MintTokenData>,
+	) -> Result<bool> {
+		let caller = T::CrossAccountId::from_eth(caller);
+		let budget = self
+			.recorder
+			.weight_calls_budget(<StructureWeight<T>>::find_parent());
+		let has_multiple_tokens = token_properties.len() > 1;
+
+		let mut create_rft_data = Vec::with_capacity(token_properties.len());
+		for MintTokenData { owners, properties } in token_properties {
+			let has_multiple_owners = owners.len() > 1;
+			if has_multiple_tokens & has_multiple_owners {
+				return Err(
+					"creation of multiple tokens supported only if they have single owner each"
+						.into(),
+				);
+			}
+			let users: BoundedBTreeMap<_, _, _> = owners
+				.into_iter()
+				.map(|data| Ok((data.owner.into_sub_cross_account::<T>()?, data.pieces)))
+				.collect::<Result<BTreeMap<_, _>>>()?
+				.try_into()
+				.map_err(|_| "too many users")?;
+			create_rft_data.push(CreateItemData::<T> {
+				properties: properties
+					.into_iter()
+					.map(|property| property.try_into())
+					.collect::<Result<Vec<_>>>()?
+					.try_into()
+					.map_err(|_| "too many properties")?,
+				users,
+			});
+		}
+
+		<Pallet<T>>::create_multiple_items(self, &caller, create_rft_data, &budget)
+			.map_err(dispatch_to_evm::<T>)?;
+		Ok(true)
+	}
+
 	/// @notice Function to mint multiple tokens with the given tokenUris.
 	/// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive
 	///  numbers and first number should be obtained with `nextTokenId` method

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--- a/pallets/refungible/src/stubs/UniqueRefungible.sol
+++ b/pallets/refungible/src/stubs/UniqueRefungible.sol
@@ -800,7 +800,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x95c0f66c
+/// @dev the ERC-165 identifier for this interface is 0x4abaabdb
 contract ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -986,6 +986,17 @@
 	// 	return false;
 	// }
 
+	/// @notice Function to mint a token.
+	/// @param tokenProperties Properties of minted token
+	/// @dev EVM selector for this function is: 0xdf7a5db7,
+	///  or in textual repr: mintBulkCross((((address,uint256),uint128)[],(string,bytes)[])[])
+	function mintBulkCross(MintTokenData[] memory tokenProperties) public returns (bool) {
+		require(false, stub_error);
+		tokenProperties;
+		dummy = 0;
+		return false;
+	}
+
 	// /// @notice Function to mint multiple tokens with the given tokenUris.
 	// /// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive
 	// ///  numbers and first number should be obtained with `nextTokenId` method
@@ -1045,6 +1056,22 @@
 	string uri;
 }
 
+/// Token minting parameters
+struct MintTokenData {
+	/// Minted token owner and number of pieces
+	OwnerPieces[] owners;
+	/// Minted token properties
+	Property[] properties;
+}
+
+/// Token minting parameters
+struct OwnerPieces {
+	/// Minted token owner
+	CrossAddress owner;
+	/// Number of token pieces
+	uint128 pieces;
+}
+
 /// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 /// @dev See https://eips.ethereum.org/EIPS/eip-721
 /// @dev the ERC-165 identifier for this interface is 0x780e9d63

--- a/pallets/scheduler-v2/src/benchmarking.rs
+++ b/pallets/scheduler-v2/src/benchmarking.rs
@@ -136,8 +136,10 @@
 	let bound = EncodedCall::bound() as u32;
 	let mut len = match maybe_lookup_len {
 		Some(len) => {
-			len.min(<T::Preimages as PreimageRecipient<T::Hash>>::MaxSize::get() - 2)
-				.max(bound) - 3
+			len.clamp(
+				bound,
+				<T::Preimages as PreimageRecipient<T::Hash>>::MaxSize::get() - 2,
+			) - 3
 		}
 		None => bound.saturating_sub(4),
 	};

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--- a/pallets/unique/src/eth/stubs/CollectionHelpers.sol
+++ b/pallets/unique/src/eth/stubs/CollectionHelpers.sol
@@ -25,12 +25,12 @@
 }
 
 /// @title Contract, which allows users to operate with collections
-/// @dev the ERC-165 identifier for this interface is 0x4135fff1
+/// @dev the ERC-165 identifier for this interface is 0x94e5af0d
 contract CollectionHelpers is Dummy, ERC165, CollectionHelpersEvents {
 	/// Create a collection
 	/// @return address Address of the newly created collection
-	/// @dev EVM selector for this function is: 0xa765ee5b,
-	///  or in textual repr: createCollection(((address,uint256),string,string,string,uint8,uint8,(string,bytes)[],(string,(uint8,bool)[])[],(address,uint256)[],(bool,bool,address[]),(uint8,uint256)[],uint8))
+	/// @dev EVM selector for this function is: 0x72b5bea7,
+	///  or in textual repr: createCollection((string,string,string,uint8,uint8,(string,bytes)[],(string,(uint8,bool)[])[],(address,uint256)[],(bool,bool,address[]),(uint8,uint256)[],(address,uint256),uint8))
 	function createCollection(CreateCollectionData memory data) public payable returns (address) {
 		require(false, stub_error);
 		data;
@@ -170,8 +170,6 @@
 
 /// Collection properties
 struct CreateCollectionData {
-	/// Collection sponsor
-	CrossAddress pending_sponsor;
 	/// Collection name
 	string name;
 	/// Collection description
@@ -192,11 +190,12 @@
 	CollectionNestingAndPermission nesting_settings;
 	/// Collection limits
 	CollectionLimitValue[] limits;
+	/// Collection sponsor
+	CrossAddress pending_sponsor;
 	/// Extra collection flags
 	CollectionFlags flags;
 }
 
-/// Cross account struct
 type CollectionFlags is uint8;
 
 library CollectionFlagsLib {
@@ -207,13 +206,19 @@
 	/// External collections can't be managed using `unique` api
 	CollectionFlags constant externalField = CollectionFlags.wrap(1);
 
-	/// Reserved bits
+	/// Reserved flags
 	function reservedField(uint8 value) public pure returns (CollectionFlags) {
 		require(value < 1 << 5, "out of bound value");
 		return CollectionFlags.wrap(value << 1);
 	}
 }
 
+/// Cross account struct
+struct CrossAddress {
+	address eth;
+	uint256 sub;
+}
+
 /// [`CollectionLimits`](up_data_structs::CollectionLimits) field representation for EVM.
 struct CollectionLimitValue {
 	CollectionLimitField field;
@@ -250,12 +255,6 @@
 	bool collection_admin;
 	/// If set - only tokens from specified collections can be nested.
 	address[] restricted;
-}
-
-/// Cross account struct
-struct CrossAddress {
-	address eth;
-	uint256 sub;
 }
 
 /// Ethereum representation of Token Property Permissions.
@@ -292,10 +291,10 @@
 
 /// Type of tokens in collection
 enum CollectionMode {
-	/// Fungible
-	Fungible,
 	/// Nonfungible
 	Nonfungible,
+	/// Fungible
+	Fungible,
 	/// Refungible
 	Refungible
 }

--- a/runtime/common/ethereum/sponsoring/refungible.rs
+++ b/runtime/common/ethereum/sponsoring/refungible.rs
@@ -242,6 +242,7 @@
 			BurnFrom { .. }
 			| BurnFromCross { .. }
 			| MintBulk { .. }
+			| MintBulkCross { .. }
 			| MintBulkWithTokenUri { .. } => None,
 
 			MintCross { .. } => withdraw_create_item::<T>(

--- a/runtime/common/tests/mod.rs
+++ b/runtime/common/tests/mod.rs
@@ -33,7 +33,7 @@
 const PARA_ID: u32 = 2037;
 
 fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
-	TPublic::Pair::from_string(&format!("//{}", seed), None)
+	TPublic::Pair::from_string(&format!("//{seed}"), None)
 		.expect("static values are valid; qed")
 		.public()
 }

--- a/tests/src/eth/abi/nonFungible.json
+++ b/tests/src/eth/abi/nonFungible.json
@@ -469,6 +469,39 @@
     "inputs": [
       {
         "components": [
+          {
+            "components": [
+              { "internalType": "address", "name": "eth", "type": "address" },
+              { "internalType": "uint256", "name": "sub", "type": "uint256" }
+            ],
+            "internalType": "struct CrossAddress",
+            "name": "owner",
+            "type": "tuple"
+          },
+          {
+            "components": [
+              { "internalType": "string", "name": "key", "type": "string" },
+              { "internalType": "bytes", "name": "value", "type": "bytes" }
+            ],
+            "internalType": "struct Property[]",
+            "name": "properties",
+            "type": "tuple[]"
+          }
+        ],
+        "internalType": "struct MintTokenData[]",
+        "name": "data",
+        "type": "tuple[]"
+      }
+    ],
+    "name": "mintBulkCross",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "components": [
           { "internalType": "address", "name": "eth", "type": "address" },
           { "internalType": "uint256", "name": "sub", "type": "uint256" }
         ],

--- a/tests/src/eth/api/CollectionHelpers.sol
+++ b/tests/src/eth/api/CollectionHelpers.sol
@@ -20,12 +20,12 @@
 }
 
 /// @title Contract, which allows users to operate with collections
-/// @dev the ERC-165 identifier for this interface is 0x4135fff1
+/// @dev the ERC-165 identifier for this interface is 0x94e5af0d
 interface CollectionHelpers is Dummy, ERC165, CollectionHelpersEvents {
 	/// Create a collection
 	/// @return address Address of the newly created collection
-	/// @dev EVM selector for this function is: 0xa765ee5b,
-	///  or in textual repr: createCollection(((address,uint256),string,string,string,uint8,uint8,(string,bytes)[],(string,(uint8,bool)[])[],(address,uint256)[],(bool,bool,address[]),(uint8,uint256)[],uint8))
+	/// @dev EVM selector for this function is: 0x72b5bea7,
+	///  or in textual repr: createCollection((string,string,string,uint8,uint8,(string,bytes)[],(string,(uint8,bool)[])[],(address,uint256)[],(bool,bool,address[]),(uint8,uint256)[],(address,uint256),uint8))
 	function createCollection(CreateCollectionData memory data) external payable returns (address);
 
 	/// Create an NFT collection
@@ -103,8 +103,6 @@
 
 /// Collection properties
 struct CreateCollectionData {
-	/// Collection sponsor
-	CrossAddress pending_sponsor;
 	/// Collection name
 	string name;
 	/// Collection description
@@ -125,11 +123,12 @@
 	CollectionNestingAndPermission nesting_settings;
 	/// Collection limits
 	CollectionLimitValue[] limits;
+	/// Collection sponsor
+	CrossAddress pending_sponsor;
 	/// Extra collection flags
 	CollectionFlags flags;
 }
 
-/// Cross account struct
 type CollectionFlags is uint8;
 
 library CollectionFlagsLib {
@@ -140,13 +139,19 @@
 	/// External collections can't be managed using `unique` api
 	CollectionFlags constant externalField = CollectionFlags.wrap(1);
 
-	/// Reserved bits
+	/// Reserved flags
 	function reservedField(uint8 value) public pure returns (CollectionFlags) {
 		require(value < 1 << 5, "out of bound value");
 		return CollectionFlags.wrap(value << 1);
 	}
 }
 
+/// Cross account struct
+struct CrossAddress {
+	address eth;
+	uint256 sub;
+}
+
 /// [`CollectionLimits`](up_data_structs::CollectionLimits) field representation for EVM.
 struct CollectionLimitValue {
 	CollectionLimitField field;
@@ -183,12 +188,6 @@
 	bool collection_admin;
 	/// If set - only tokens from specified collections can be nested.
 	address[] restricted;
-}
-
-/// Cross account struct
-struct CrossAddress {
-	address eth;
-	uint256 sub;
 }
 
 /// Ethereum representation of Token Property Permissions.
@@ -225,10 +224,10 @@
 
 /// Type of tokens in collection
 enum CollectionMode {
-	/// Fungible
-	Fungible,
 	/// Nonfungible
 	Nonfungible,
+	/// Fungible
+	Fungible,
 	/// Refungible
 	Refungible
 }

--- a/tests/src/eth/api/UniqueNFT.sol
+++ b/tests/src/eth/api/UniqueNFT.sol
@@ -551,7 +551,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x307b061a
+/// @dev the ERC-165 identifier for this interface is 0x9b397d16
 interface ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -674,6 +674,12 @@
 	// ///  or in textual repr: mintBulk(address,uint256[])
 	// function mintBulk(address to, uint256[] memory tokenIds) external returns (bool);
 
+	/// @notice Function to mint a token.
+	/// @param data Array of pairs of token owner and token's properties for minted token
+	/// @dev EVM selector for this function is: 0xab427b0c,
+	///  or in textual repr: mintBulkCross(((address,uint256),(string,bytes)[])[])
+	function mintBulkCross(MintTokenData[] memory data) external returns (bool);
+
 	// /// @notice Function to mint multiple tokens with the given tokenUris.
 	// /// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive
 	// ///  numbers and first number should be obtained with `nextTokenId` method
@@ -705,6 +711,14 @@
 	string uri;
 }
 
+/// Token minting parameters
+struct MintTokenData {
+	/// Minted token owner
+	CrossAddress owner;
+	/// Minted token properties
+	Property[] properties;
+}
+
 /// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 /// @dev See https://eips.ethereum.org/EIPS/eip-721
 /// @dev the ERC-165 identifier for this interface is 0x780e9d63

--- a/tests/src/eth/api/UniqueRefungible.sol
+++ b/tests/src/eth/api/UniqueRefungible.sol
@@ -551,7 +551,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0x95c0f66c
+/// @dev the ERC-165 identifier for this interface is 0x4abaabdb
 interface ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -668,6 +668,12 @@
 	// ///  or in textual repr: mintBulk(address,uint256[])
 	// function mintBulk(address to, uint256[] memory tokenIds) external returns (bool);
 
+	/// @notice Function to mint a token.
+	/// @param tokenProperties Properties of minted token
+	/// @dev EVM selector for this function is: 0xdf7a5db7,
+	///  or in textual repr: mintBulkCross((((address,uint256),uint128)[],(string,bytes)[])[])
+	function mintBulkCross(MintTokenData[] memory tokenProperties) external returns (bool);
+
 	// /// @notice Function to mint multiple tokens with the given tokenUris.
 	// /// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive
 	// ///  numbers and first number should be obtained with `nextTokenId` method
@@ -706,6 +712,22 @@
 	string uri;
 }
 
+/// Token minting parameters
+struct MintTokenData {
+	/// Minted token owner and number of pieces
+	OwnerPieces[] owners;
+	/// Minted token properties
+	Property[] properties;
+}
+
+/// Token minting parameters
+struct OwnerPieces {
+	/// Minted token owner
+	CrossAddress owner;
+	/// Number of token pieces
+	uint128 pieces;
+}
+
 /// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 /// @dev See https://eips.ethereum.org/EIPS/eip-721
 /// @dev the ERC-165 identifier for this interface is 0x780e9d63

--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -18,6 +18,7 @@
 import {IKeyringPair} from '@polkadot/types/types';
 import {Contract} from 'web3-eth-contract';
 import {ITokenPropertyPermission} from '../util/playgrounds/types';
+import {CREATE_COLLECTION_DATA_DEFAULTS, CollectionMode, CreateCollectionData, TokenPermissionField} from './util/playgrounds/types';
 
 describe('Check ERC721 token URI for NFT', () => {
   let donor: IKeyringPair;
@@ -197,6 +198,96 @@
     }
   });
 
+  itEth('Can perform mintBulkCross()', async ({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const callerCross = helper.ethCrossAccount.fromAddress(caller);
+    const receiver = helper.eth.createAccount();
+    const receiverCross = helper.ethCrossAccount.fromAddress(receiver);
+
+    const permissions = [
+      {code: TokenPermissionField.Mutable, value: true},
+      {code: TokenPermissionField.TokenOwner, value: true},
+      {code: TokenPermissionField.CollectionAdmin, value: true},
+    ];
+    const {collectionAddress} = await helper.eth.createCollection(
+      caller,
+      {
+        ...CREATE_COLLECTION_DATA_DEFAULTS,
+        name: 'A',
+        description: 'B',
+        tokenPrefix: 'C',
+        collectionMode: 'nft',
+        adminList: [callerCross],
+        tokenPropertyPermissions: [
+          {key: 'key_0_0', permissions},
+          {key: 'key_1_0', permissions},
+          {key: 'key_1_1', permissions},
+          {key: 'key_2_0', permissions},
+          {key: 'key_2_1', permissions},
+          {key: 'key_2_2', permissions},
+        ],
+      },
+    ).send();
+
+    const contract = await helper.ethNativeContract.collection(collectionAddress, 'nft', caller);
+    {
+      const nextTokenId = await contract.methods.nextTokenId().call();
+      expect(nextTokenId).to.be.equal('1');
+      const result = await contract.methods.mintBulkCross([
+        {
+          owner: receiverCross,
+          properties: [
+            {key: 'key_0_0', value: Buffer.from('value_0_0')},
+          ],
+        },
+        {
+          owner: receiverCross,
+          properties: [
+            {key: 'key_1_0', value: Buffer.from('value_1_0')},
+            {key: 'key_1_1', value: Buffer.from('value_1_1')},
+          ],
+        },
+        {
+          owner: receiverCross,
+          properties: [
+            {key: 'key_2_0', value: Buffer.from('value_2_0')},
+            {key: 'key_2_1', value: Buffer.from('value_2_1')},
+            {key: 'key_2_2', value: Buffer.from('value_2_2')},
+          ],
+        },
+      ]).send({from: caller});
+      const events = result.events.Transfer.sort((a: any, b: any) => +a.returnValues.tokenId - b.returnValues.tokenId);
+      const bulkSize = 3;
+      for(let i = 0; i < bulkSize; i++) {
+        const event = events[i];
+        expect(event.address).to.equal(collectionAddress);
+        expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');
+        expect(event.returnValues.to).to.equal(receiver);
+        expect(event.returnValues.tokenId).to.equal(`${+nextTokenId + i}`);
+      }
+
+      const properties = [
+        await contract.methods.properties(+nextTokenId, []).call(),
+        await contract.methods.properties(+nextTokenId + 1, []).call(),
+        await contract.methods.properties(+nextTokenId + 2, []).call(),
+      ];
+      expect(properties).to.be.deep.equal([
+        [
+          ['key_0_0', helper.getWeb3().utils.toHex('value_0_0')],
+        ],
+        [
+          ['key_1_0', helper.getWeb3().utils.toHex('value_1_0')],
+          ['key_1_1', helper.getWeb3().utils.toHex('value_1_1')],
+        ],
+        [
+          ['key_2_0', helper.getWeb3().utils.toHex('value_2_0')],
+          ['key_2_1', helper.getWeb3().utils.toHex('value_2_1')],
+          ['key_2_2', helper.getWeb3().utils.toHex('value_2_2')],
+        ],
+      ]);
+    }
+  });
+
   itEth('Can perform burn()', async ({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
 

--- a/tests/src/eth/reFungible.test.ts
+++ b/tests/src/eth/reFungible.test.ts
@@ -18,6 +18,7 @@
 import {expect, itEth, usingEthPlaygrounds} from './util';
 import {IKeyringPair} from '@polkadot/types/types';
 import {ITokenPropertyPermission} from '../util/playgrounds/types';
+import {CREATE_COLLECTION_DATA_DEFAULTS, TokenPermissionField} from './util/playgrounds/types';
 
 describe('Refungible: Plain calls', () => {
   let donor: IKeyringPair;
@@ -125,6 +126,169 @@
     }
   });
 
+  itEth('Can perform mintBulkCross() with multiple tokens', async ({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const callerCross = helper.ethCrossAccount.fromAddress(caller);
+    const receiver = helper.eth.createAccount();
+    const receiverCross = helper.ethCrossAccount.fromAddress(receiver);
+
+    const permissions = [
+      {code: TokenPermissionField.Mutable, value: true},
+      {code: TokenPermissionField.TokenOwner, value: true},
+      {code: TokenPermissionField.CollectionAdmin, value: true},
+    ];
+    const {collectionAddress} = await helper.eth.createCollection(
+      caller,
+      {
+        ...CREATE_COLLECTION_DATA_DEFAULTS,
+        name: 'A',
+        description: 'B',
+        tokenPrefix: 'C',
+        collectionMode: 'rft',
+        adminList: [callerCross],
+        tokenPropertyPermissions: [
+          {key: 'key_0_0', permissions},
+          {key: 'key_1_0', permissions},
+          {key: 'key_1_1', permissions},
+          {key: 'key_2_0', permissions},
+          {key: 'key_2_1', permissions},
+          {key: 'key_2_2', permissions},
+        ],
+      },
+    ).send();
+
+    const contract = await helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    const result = await contract.methods.mintBulkCross([
+      {
+        owners: [{
+          owner: receiverCross,
+          pieces: 1,
+        }],
+        properties: [
+          {key: 'key_0_0', value: Buffer.from('value_0_0')},
+        ],
+      },
+      {
+        owners: [{
+          owner: receiverCross,
+          pieces: 2,
+        }],
+        properties: [
+          {key: 'key_1_0', value: Buffer.from('value_1_0')},
+          {key: 'key_1_1', value: Buffer.from('value_1_1')},
+        ],
+      },
+      {
+        owners: [{
+          owner: receiverCross,
+          pieces: 1,
+        }],
+        properties: [
+          {key: 'key_2_0', value: Buffer.from('value_2_0')},
+          {key: 'key_2_1', value: Buffer.from('value_2_1')},
+          {key: 'key_2_2', value: Buffer.from('value_2_2')},
+        ],
+      },
+    ]).send({from: caller});
+    const events = result.events.Transfer.sort((a: any, b: any) => +a.returnValues.tokenId - b.returnValues.tokenId);
+    const bulkSize = 3;
+    for(let i = 0; i < bulkSize; i++) {
+      const event = events[i];
+      expect(event.address).to.equal(collectionAddress);
+      expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');
+      expect(event.returnValues.to).to.equal(receiver);
+      expect(event.returnValues.tokenId).to.equal(`${+nextTokenId + i}`);
+    }
+
+    const properties = [
+      await contract.methods.properties(+nextTokenId, []).call(),
+      await contract.methods.properties(+nextTokenId + 1, []).call(),
+      await contract.methods.properties(+nextTokenId + 2, []).call(),
+    ];
+    expect(properties).to.be.deep.equal([
+      [
+        ['key_0_0', helper.getWeb3().utils.toHex('value_0_0')],
+      ],
+      [
+        ['key_1_0', helper.getWeb3().utils.toHex('value_1_0')],
+        ['key_1_1', helper.getWeb3().utils.toHex('value_1_1')],
+      ],
+      [
+        ['key_2_0', helper.getWeb3().utils.toHex('value_2_0')],
+        ['key_2_1', helper.getWeb3().utils.toHex('value_2_1')],
+        ['key_2_2', helper.getWeb3().utils.toHex('value_2_2')],
+      ],
+    ]);
+  });
+
+  itEth('Can perform mintBulkCross() with multiple owners', async ({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const callerCross = helper.ethCrossAccount.fromAddress(caller);
+    const receiver = helper.eth.createAccount();
+    const receiverCross = helper.ethCrossAccount.fromAddress(receiver);
+    const receiver2 = helper.eth.createAccount();
+    const receiver2Cross = helper.ethCrossAccount.fromAddress(receiver2);
+
+    const permissions = [
+      {code: TokenPermissionField.Mutable, value: true},
+      {code: TokenPermissionField.TokenOwner, value: true},
+      {code: TokenPermissionField.CollectionAdmin, value: true},
+    ];
+    const {collectionAddress} = await helper.eth.createCollection(
+      caller,
+      {
+        ...CREATE_COLLECTION_DATA_DEFAULTS,
+        name: 'A',
+        description: 'B',
+        tokenPrefix: 'C',
+        collectionMode: 'rft',
+        adminList: [callerCross],
+        tokenPropertyPermissions: [
+          {key: 'key_2_0', permissions},
+          {key: 'key_2_1', permissions},
+          {key: 'key_2_2', permissions},
+        ],
+      },
+    ).send();
+
+    const contract = await helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    const result = await contract.methods.mintBulkCross([{
+      owners: [
+        {
+          owner: receiverCross,
+          pieces: 1,
+        },
+        {
+          owner: receiver2Cross,
+          pieces: 2,
+        },
+      ],
+      properties: [
+        {key: 'key_2_0', value: Buffer.from('value_2_0')},
+        {key: 'key_2_1', value: Buffer.from('value_2_1')},
+        {key: 'key_2_2', value: Buffer.from('value_2_2')},
+      ],
+    }]).send({from: caller});
+    const event = result.events.Transfer;
+    expect(event.address).to.equal(collectionAddress);
+    expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');
+    expect(event.returnValues.to).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');
+    expect(event.returnValues.tokenId).to.equal(`${+nextTokenId}`);
+
+    const properties = [
+      await contract.methods.properties(+nextTokenId, []).call(),
+    ];
+    expect(properties).to.be.deep.equal([[
+      ['key_2_0', helper.getWeb3().utils.toHex('value_2_0')],
+      ['key_2_1', helper.getWeb3().utils.toHex('value_2_1')],
+      ['key_2_2', helper.getWeb3().utils.toHex('value_2_2')],
+    ]]);
+  });
+
   itEth('Can perform setApprovalForAll()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const operator = helper.eth.createAccount();
@@ -786,4 +950,70 @@
 
     await expect(contract.methods.transferFromCross(ownerCross, recieverCross, token.tokenId).send({from: spender})).to.be.rejected;
   });
+
+  itEth('[negative] Can perform mintBulkCross() with multiple owners and multiple tokens', async ({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const callerCross = helper.ethCrossAccount.fromAddress(caller);
+    const receiver = helper.eth.createAccount();
+    const receiverCross = helper.ethCrossAccount.fromAddress(receiver);
+    const receiver2 = helper.eth.createAccount();
+    const receiver2Cross = helper.ethCrossAccount.fromAddress(receiver2);
+
+    const permissions = [
+      {code: TokenPermissionField.Mutable, value: true},
+      {code: TokenPermissionField.TokenOwner, value: true},
+      {code: TokenPermissionField.CollectionAdmin, value: true},
+    ];
+    const {collectionAddress} = await helper.eth.createCollection(
+      caller,
+      {
+        ...CREATE_COLLECTION_DATA_DEFAULTS,
+        name: 'A',
+        description: 'B',
+        tokenPrefix: 'C',
+        collectionMode: 'rft',
+        adminList: [callerCross],
+        tokenPropertyPermissions: [
+          {key: 'key_0_0', permissions},
+          {key: 'key_2_0', permissions},
+          {key: 'key_2_1', permissions},
+          {key: 'key_2_2', permissions},
+        ],
+      },
+    ).send();
+
+    const contract = await helper.ethNativeContract.collection(collectionAddress, 'rft', caller);
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    const createData = [
+      {
+        owners: [{
+          owner: receiverCross,
+          pieces: 1,
+        }],
+        properties: [
+          {key: 'key_0_0', value: Buffer.from('value_0_0')},
+        ],
+      },
+      {
+        owners: [
+          {
+            owner: receiverCross,
+            pieces: 1,
+          },
+          {
+            owner: receiver2Cross,
+            pieces: 2,
+          },
+        ],
+        properties: [
+          {key: 'key_2_0', value: Buffer.from('value_2_0')},
+          {key: 'key_2_1', value: Buffer.from('value_2_1')},
+          {key: 'key_2_2', value: Buffer.from('value_2_2')},
+        ],
+      },
+    ];
+
+    await expect(contract.methods.mintBulkCross(createData).call({from: caller})).to.be.rejectedWith('creation of multiple tokens supported only if they have single owner each');
+  });
 });