git.delta.rocks / unique-network / refs/commits / 2232fc1c912c

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5731,7 +5731,7 @@
 
 [[package]]
 name = "pallet-common"
-version = "0.1.2"
+version = "0.1.3"
 dependencies = [
  "ethereum",
  "evm-coder",
@@ -6198,7 +6198,7 @@
 
 [[package]]
 name = "pallet-nonfungible"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "ethereum",
  "evm-coder",
@@ -6638,7 +6638,7 @@
 
 [[package]]
 name = "pallet-unique"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "ethereum",
  "evm-coder",
@@ -6649,6 +6649,7 @@
  "pallet-evm",
  "pallet-evm-coder-substrate",
  "pallet-nonfungible",
+ "pallet-refungible",
  "parity-scale-codec 3.1.5",
  "scale-info",
  "serde",
@@ -12736,7 +12737,7 @@
 
 [[package]]
 name = "up-data-structs"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "derivative",
  "frame-support",

--- a/Makefile
+++ b/Makefile
@@ -9,10 +9,12 @@
 FUNGIBLE_EVM_STUBS=./pallets/fungible/src/stubs
 FUNGIBLE_EVM_ABI=./tests/src/eth/fungibleAbi.json
 
+REFUNGIBLE_EVM_STUBS=./pallets/refungible/src/stubs
+REFUNGIBLE_EVM_ABI=./tests/src/eth/refungibleAbi.json
+
 NONFUNGIBLE_EVM_STUBS=./pallets/nonfungible/src/stubs
 NONFUNGIBLE_EVM_ABI=./tests/src/eth/nonFungibleAbi.json
 
-REFUNGIBLE_EVM_STUBS=./pallets/refungible/src/stubs
 RENFUNGIBLE_EVM_ABI=./tests/src/eth/reFungibleAbi.json
 RENFUNGIBLE_TOKEN_EVM_ABI=./tests/src/eth/reFungibleTokenAbi.json
 
@@ -25,7 +27,7 @@
 TESTS_API=./tests/src/eth/api/
 
 .PHONY: regenerate_solidity
-regenerate_solidity: UniqueFungible.sol UniqueNFT.sol UniqueRefungibleToken.sol ContractHelpers.sol CollectionHelpers.sol
+regenerate_solidity: UniqueFungible.sol UniqueNFT.sol UniqueRefungible.sol UniqueRefungibleToken.sol ContractHelpers.sol CollectionHelpers.sol
 
 UniqueFungible.sol:
 	PACKAGE=pallet-fungible NAME=erc::gen_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
@@ -35,6 +37,10 @@
 	PACKAGE=pallet-nonfungible NAME=erc::gen_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
 	PACKAGE=pallet-nonfungible NAME=erc::gen_impl OUTPUT=$(NONFUNGIBLE_EVM_STUBS)/$@ ./.maintain/scripts/generate_sol.sh
 	
+UniqueRefungible.sol:
+	PACKAGE=pallet-refungible NAME=erc::gen_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
+	PACKAGE=pallet-refungible NAME=erc::gen_impl OUTPUT=$(REFUNGIBLE_EVM_STUBS)/$@ ./.maintain/scripts/generate_sol.sh
+
 UniqueRefungibleToken.sol:
 	PACKAGE=pallet-refungible NAME=erc_token::gen_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
 	PACKAGE=pallet-refungible NAME=erc_token::gen_impl OUTPUT=$(REFUNGIBLE_EVM_STUBS)/$@ ./.maintain/scripts/generate_sol.sh
@@ -59,6 +65,10 @@
 	INPUT=$(REFUNGIBLE_EVM_STUBS)/$< OUTPUT=$(REFUNGIBLE_EVM_STUBS)/UniqueRefungibleToken.raw ./.maintain/scripts/compile_stub.sh
 	INPUT=$(REFUNGIBLE_EVM_STUBS)/$< OUTPUT=$(RENFUNGIBLE_TOKEN_EVM_ABI) ./.maintain/scripts/generate_abi.sh
 
+UniqueRefungible: UniqueRefungible.sol
+	INPUT=$(REFUNGIBLE_EVM_STUBS)/$< OUTPUT=$(REFUNGIBLE_EVM_STUBS)/UniqueRefungible.raw ./.maintain/scripts/compile_stub.sh
+	INPUT=$(REFUNGIBLE_EVM_STUBS)/$< OUTPUT=$(REFUNGIBLE_EVM_ABI) ./.maintain/scripts/generate_abi.sh
+
 ContractHelpers: ContractHelpers.sol
 	INPUT=$(CONTRACT_HELPERS_STUBS)/$< OUTPUT=$(CONTRACT_HELPERS_STUBS)/ContractHelpers.raw ./.maintain/scripts/compile_stub.sh
 	INPUT=$(CONTRACT_HELPERS_STUBS)/$< OUTPUT=$(CONTRACT_HELPERS_ABI) ./.maintain/scripts/generate_abi.sh
@@ -67,7 +77,7 @@
 	INPUT=$(COLLECTION_HELPER_STUBS)/$< OUTPUT=$(COLLECTION_HELPER_STUBS)/CollectionHelpers.raw ./.maintain/scripts/compile_stub.sh
 	INPUT=$(COLLECTION_HELPER_STUBS)/$< OUTPUT=$(COLLECTION_HELPER_ABI) ./.maintain/scripts/generate_abi.sh
 
-evm_stubs: UniqueFungible UniqueNFT UniqueRefungibleToken ContractHelpers CollectionHelpers
+evm_stubs: UniqueFungible UniqueNFT UniqueRefungible UniqueRefungibleToken ContractHelpers CollectionHelpers
 
 .PHONY: _bench
 _bench:

--- a/pallets/common/CHANGELOG.MD
+++ b/pallets/common/CHANGELOG.MD
@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.1.3] - 2022-07-25
+### Add
+-   Some static property keys and values.
+
 ## [0.1.2] - 2022-07-20
 
 ### Fixed

--- a/pallets/common/Cargo.toml
+++ b/pallets/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-common"
-version = "0.1.2"
+version = "0.1.3"
 license = "GPLv3"
 edition = "2021"
 

--- a/pallets/common/src/dispatch.rs
+++ b/pallets/common/src/dispatch.rs
@@ -8,6 +8,7 @@
 	weights::Pays,
 	traits::Get,
 };
+use sp_runtime::DispatchError;
 use up_data_structs::{CollectionId, CreateCollectionData};
 
 use crate::{pallet::Config, CommonCollectionOperations, CollectionHandle};
@@ -78,7 +79,7 @@
 	fn create(
 		sender: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
-	) -> DispatchResult;
+	) -> Result<CollectionId, DispatchError>;
 
 	/// Delete the collection.
 	///

--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -430,10 +430,70 @@
 	Ok(())
 }
 
-/// Get the "tokenURI" key as [PropertyKey](up_data_structs::PropertyKey).
-pub fn token_uri_key() -> up_data_structs::PropertyKey {
-	b"tokenURI"
-		.to_vec()
-		.try_into()
-		.expect("length < limit; qed")
+/// Contains static property keys and values.
+pub mod static_property {
+	use evm_coder::{
+		execution::{Result, Error},
+	};
+	use alloc::format;
+
+	const EXPECT_CONVERT_ERROR: &str = "length < limit";
+
+	/// Keys.
+	pub mod key {
+		use super::*;
+
+		/// Key "schemaName".
+		pub fn schema_name() -> up_data_structs::PropertyKey {
+			property_key_from_bytes(b"schemaName").expect(EXPECT_CONVERT_ERROR)
+		}
+
+		/// Key "baseURI".
+		pub fn base_uri() -> up_data_structs::PropertyKey {
+			property_key_from_bytes(b"baseURI").expect(EXPECT_CONVERT_ERROR)
+		}
+
+		/// Key "url".
+		pub fn url() -> up_data_structs::PropertyKey {
+			property_key_from_bytes(b"url").expect(EXPECT_CONVERT_ERROR)
+		}
+
+		/// Key "suffix".
+		pub fn suffix() -> up_data_structs::PropertyKey {
+			property_key_from_bytes(b"suffix").expect(EXPECT_CONVERT_ERROR)
+		}
+	}
+
+	/// Values.
+	pub mod value {
+		use super::*;
+
+		/// Value "ERC721Metadata".
+		pub const ERC721_METADATA: &[u8] = b"ERC721Metadata";
+
+		/// Value for [`ERC721_METADATA`].
+		pub fn erc721() -> up_data_structs::PropertyValue {
+			property_value_from_bytes(ERC721_METADATA).expect(EXPECT_CONVERT_ERROR)
+		}
+	}
+
+	/// Convert `byte` to [`PropertyKey`].
+	pub fn property_key_from_bytes(bytes: &[u8]) -> Result<up_data_structs::PropertyKey> {
+		bytes.to_vec().try_into().map_err(|_| {
+			Error::Revert(format!(
+				"Property key is too long. Max length is {}.",
+				up_data_structs::PropertyKey::bound()
+			))
+		})
+	}
+
+	/// Convert `bytes` to [`PropertyValue`].
+	pub fn property_value_from_bytes(bytes: &[u8]) -> Result<up_data_structs::PropertyValue> {
+		bytes.to_vec().try_into().map_err(|_| {
+			Error::Revert(format!(
+				"Property key is too long. Max length is {}.",
+				up_data_structs::PropertyKey::bound()
+			))
+		})
+	}
 }

22
3All notable changes to this project will be documented in this file.3All notable changes to this project will be documented in this file.
44
5## [0.1.2] - 2022-07-25
6### Changed
7- New `token_uri` retrieval logic:
8
9      If the collection has a `url` property and it is not empty, it is returned.
10      Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
11
12      If the property `baseURI` is empty or absent, return "" (empty string)
13      otherwise, if property `suffix` present and is non-empty, return concatenation of baseURI and suffix
14      otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
15
5## [0.1.1] - 2022-07-1416## [0.1.1] - 2022-07-14
6
7### Added17### Added
818
9- Implementation of RPC method `token_owners`.19- Implementation of RPC method `token_owners`.
10   For reasons of compatibility with this pallet, returns only one owner if token exists.20   For reasons of compatibility with this pallet, returns only one owner if token exists.
11   This was an internal request to improve the web interface and support fractionalization event. 21   This was an internal request to improve the web interface and support fractionalization event. 
22

--- a/pallets/nonfungible/Cargo.toml
+++ b/pallets/nonfungible/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-nonfungible"
-version = "0.1.1"
+version = "0.1.2"
 license = "GPLv3"
 edition = "2021"
 

--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -33,12 +33,16 @@
 use pallet_evm_coder_substrate::dispatch_to_evm;
 use sp_std::vec::Vec;
 use pallet_common::{
-	erc::{CommonEvmHandler, PrecompileResult, CollectionCall, token_uri_key},
+	erc::{
+		CommonEvmHandler, PrecompileResult, CollectionCall,
+		static_property::{key, value as property_value},
+	},
 	CollectionHandle, CollectionPropertyPermissions,
 };
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::call;
 use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};
+use alloc::string::ToString;
 
 use crate::{
 	AccountBalance, Config, CreateItemData, NonfungibleHandle, Pallet, TokenData, TokensMinted,
@@ -212,27 +216,47 @@
 	}
 
 	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
-	/// @dev Throws if `tokenId` is not a valid NFT. URIs are defined in RFC
-	///  3986. The URI may point to a JSON file that conforms to the "ERC721
-	///  Metadata JSON Schema".
+	///
+	/// @dev If the token has a `url` property and it is not empty, it is returned.
+	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.
+	///  If the collection property `baseURI` is empty or absent, return "" (empty string)
+	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix
+	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).
+	///
 	/// @return token's const_metadata
 	#[solidity(rename_selector = "tokenURI")]
 	fn token_uri(&self, token_id: uint256) -> Result<string> {
-		let key = token_uri_key();
-		if !has_token_permission::<T>(self.id, &key) {
-			return Err("No tokenURI permission".into());
+		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
+
+		if let Ok(url) = get_token_property(self, token_id_u32, &key::url()) {
+			if !url.is_empty() {
+				return Ok(url);
+			}
+		} else if !is_erc721_metadata_compatible::<T>(self.id) {
+			return Err("tokenURI not set".into());
 		}
 
-		self.consume_store_reads(1)?;
-		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
+		if let Some(base_uri) =
+			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())
+		{
+			if !base_uri.is_empty() {
+				let base_uri = string::from_utf8(base_uri.into_inner()).map_err(|e| {
+					Error::Revert(alloc::format!(
+						"Can not convert value \"baseURI\" to string with error \"{}\"",
+						e
+					))
+				})?;
+				if let Ok(suffix) = get_token_property(self, token_id_u32, &key::suffix()) {
+					if !suffix.is_empty() {
+						return Ok(base_uri + suffix.as_str());
+					}
+				}
 
-		let properties = <TokenProperties<T>>::try_get((self.id, token_id))
-			.map_err(|_| Error::Revert("Token properties not found".into()))?;
-		if let Some(property) = properties.get(&key) {
-			return Ok(string::from_utf8_lossy(property).into());
+				return Ok(base_uri + token_id.to_string().as_str());
+			}
 		}
 
-		Err("Property tokenURI not found".into())
+		Ok("".into())
 	}
 }
 
@@ -469,7 +493,7 @@
 		token_id: uint256,
 		token_uri: string,
 	) -> Result<bool> {
-		let key = token_uri_key();
+		let key = key::url();
 		let permission = get_token_permission::<T>(self.id, &key)?;
 		if !permission.collection_admin {
 			return Err("Operation is not allowed".into());
@@ -520,6 +544,32 @@
 	}
 }
 
+fn get_token_property<T: Config>(
+	collection: &CollectionHandle<T>,
+	token_id: u32,
+	key: &up_data_structs::PropertyKey,
+) -> Result<string> {
+	collection.consume_store_reads(1)?;
+	let properties = <TokenProperties<T>>::try_get((collection.id, token_id))
+		.map_err(|_| Error::Revert("Token properties not found".into()))?;
+	if let Some(property) = properties.get(key) {
+		return Ok(string::from_utf8_lossy(property).into());
+	}
+
+	Err("Property tokenURI not found".into())
+}
+
+fn is_erc721_metadata_compatible<T: Config>(collection_id: CollectionId) -> bool {
+	if let Some(shema_name) =
+		pallet_common::Pallet::<T>::get_collection_property(collection_id, &key::schema_name())
+	{
+		let shema_name = shema_name.into_inner();
+		shema_name == property_value::ERC721_METADATA
+	} else {
+		false
+	}
+}
+
 fn get_token_permission<T: Config>(
 	collection_id: CollectionId,
 	key: &PropertyKey,
@@ -528,8 +578,11 @@
 		.map_err(|_| Error::Revert("No permissions for collection".into()))?;
 	let a = token_property_permissions
 		.get(key)
-		.map(|p| p.clone())
-		.ok_or_else(|| Error::Revert("No permission".into()))?;
+		.map(Clone::clone)
+		.ok_or_else(|| {
+			let key = string::from_utf8(key.clone().into_inner()).unwrap_or_default();
+			Error::Revert(alloc::format!("No permission for key {}", key))
+		})?;
 	Ok(a)
 }
 
@@ -656,7 +709,7 @@
 		to: address,
 		tokens: Vec<(uint256, string)>,
 	) -> Result<bool> {
-		let key = token_uri_key();
+		let key = key::url();
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let mut expected_index = <TokensMinted<T>>::get(self.id)

binary blob — no preview

--- a/pallets/refungible/CHANGELOG.md
+++ b/pallets/refungible/CHANGELOG.md
@@ -10,6 +10,8 @@
 test(refungible-pallet): add tests for ERC-20 EVM API for RFT token pieces ([#413](https://github.com/UniqueNetwork/unique-chain/pull/413))
 
 ## [v0.1.1] - 2022-07-14
+### Added
+- Support for properties for RFT collections and tokens.
 
 ### Other changes
 

--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -25,14 +25,14 @@
 use crate::{Config, RefungibleHandle};
 
 #[solidity_interface(
-	name = "UniqueRFT",
+	name = "UniqueRefungible",
 	is(via("CollectionHandle<T>", common_mut, Collection),)
 )]
 impl<T: Config> RefungibleHandle<T> where T::AccountId: From<[u8; 32]> {}
 
 // Not a tests, but code generators
-generate_stubgen!(gen_impl, UniqueRFTCall<()>, true);
-generate_stubgen!(gen_iface, UniqueRFTCall<()>, false);
+generate_stubgen!(gen_impl, UniqueRefungibleCall<()>, true);
+generate_stubgen!(gen_iface, UniqueRefungibleCall<()>, false);
 
 impl<T: Config> CommonEvmHandler for RefungibleHandle<T>
 where
@@ -43,6 +43,6 @@
 		self,
 		handle: &mut impl PrecompileHandle,
 	) -> Option<pallet_common::erc::PrecompileResult> {
-		call::<T, UniqueRFTCall<T>, _, _>(handle, self)
+		call::<T, UniqueRefungibleCall<T>, _, _>(handle, self)
 	}
 }

binary blob — no preview

binary blob — no preview

--- a/pallets/refungible/src/stubs/UniqueRefungibleToken.sol
+++ b/pallets/refungible/src/stubs/UniqueRefungibleToken.sol
@@ -33,6 +33,8 @@
 
 // Selector: 942e8b22
 contract ERC20 is Dummy, ERC165, ERC20Events {
+	// @return the name of the token.
+	//
 	// Selector: name() 06fdde03
 	function name() public view returns (string memory) {
 		require(false, stub_error);
@@ -40,6 +42,8 @@
 		return "";
 	}
 
+	// @return the symbol of the token.
+	//
 	// Selector: symbol() 95d89b41
 	function symbol() public view returns (string memory) {
 		require(false, stub_error);
@@ -47,6 +51,8 @@
 		return "";
 	}
 
+	// @dev Total number of tokens in existence
+	//
 	// Selector: totalSupply() 18160ddd
 	function totalSupply() public view returns (uint256) {
 		require(false, stub_error);
@@ -54,6 +60,8 @@
 		return 0;
 	}
 
+	// @dev Not supported
+	//
 	// Selector: decimals() 313ce567
 	function decimals() public view returns (uint8) {
 		require(false, stub_error);
@@ -61,6 +69,10 @@
 		return 0;
 	}
 
+	// @dev Gets the balance of the specified address.
+	// @param owner The address to query the balance of.
+	// @return An uint256 representing the amount owned by the passed address.
+	//
 	// Selector: balanceOf(address) 70a08231
 	function balanceOf(address owner) public view returns (uint256) {
 		require(false, stub_error);
@@ -69,6 +81,10 @@
 		return 0;
 	}
 
+	// @dev Transfer token for a specified address
+	// @param to The address to transfer to.
+	// @param amount The amount to be transferred.
+	//
 	// Selector: transfer(address,uint256) a9059cbb
 	function transfer(address to, uint256 amount) public returns (bool) {
 		require(false, stub_error);
@@ -78,6 +94,11 @@
 		return false;
 	}
 
+	// @dev Transfer tokens from one address to another
+	// @param from address The address which you want to send tokens from
+	// @param to address The address which you want to transfer to
+	// @param amount uint256 the amount of tokens to be transferred
+	//
 	// Selector: transferFrom(address,address,uint256) 23b872dd
 	function transferFrom(
 		address from,
@@ -92,6 +113,14 @@
 		return false;
 	}
 
+	// @dev Approve the passed address to spend the specified amount of tokens on behalf of `msg.sender`.
+	// Beware that changing an allowance with this method brings the risk that someone may use both the old
+	// and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
+	// race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
+	// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+	// @param spender The address which will spend the funds.
+	// @param amount The amount of tokens to be spent.
+	//
 	// Selector: approve(address,uint256) 095ea7b3
 	function approve(address spender, uint256 amount) public returns (bool) {
 		require(false, stub_error);
@@ -101,6 +130,11 @@
 		return false;
 	}
 
+	// @dev Function to check the amount of tokens that an owner allowed to a spender.
+	// @param owner address The address which owns the funds.
+	// @param spender address The address which will spend the funds.
+	// @return A uint256 specifying the amount of tokens still available for the spender.
+	//
 	// Selector: allowance(address,address) dd62ed3e
 	function allowance(address owner, address spender)
 		public
@@ -117,6 +151,11 @@
 
 // Selector: ab8deb37
 contract ERC20UniqueExtensions is Dummy, ERC165 {
+	// @dev Function that burns an amount of the token of a given account,
+	// deducting from the sender's allowance for said account.
+	// @param from The account whose tokens will be burnt.
+	// @param amount The amount that will be burnt.
+	//
 	// Selector: burnFrom(address,uint256) 79cc6790
 	function burnFrom(address from, uint256 amount) public returns (bool) {
 		require(false, stub_error);
@@ -126,6 +165,10 @@
 		return false;
 	}
 
+	// @dev Function that changes total amount of the tokens.
+	//  Throws if `msg.sender` doesn't owns all of the tokens.
+	// @param amount New total amount of the tokens.
+	//
 	// Selector: repartition(uint256) d2418ca7
 	function repartition(uint256 amount) public returns (bool) {
 		require(false, stub_error);

--- a/pallets/unique/Cargo.toml
+++ b/pallets/unique/Cargo.toml
@@ -9,7 +9,7 @@
 license = 'GPLv3'
 name = 'pallet-unique'
 repository = 'https://github.com/UniqueNetwork/unique-chain'
-version = '0.1.0'
+version = '0.1.1'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
@@ -103,3 +103,4 @@
 evm-coder = { default-features = false, path = '../../crates/evm-coder' }
 pallet-evm-coder-substrate = { default-features = false, path = '../../pallets/evm-coder-substrate' }
 pallet-nonfungible = { default-features = false, path = '../../pallets/nonfungible' }
+pallet-refungible = { default-features = false, path = '../../pallets/refungible' }

--- a/pallets/unique/src/eth/mod.rs
+++ b/pallets/unique/src/eth/mod.rs
@@ -17,18 +17,22 @@
 //! Implementation of CollectionHelpers contract.
 
 use core::marker::PhantomData;
-use evm_coder::{execution::*, generate_stubgen, solidity_interface, weight, types::*};
+use evm_coder::{execution::*, generate_stubgen, solidity_interface, solidity, weight, types::*};
 use ethereum as _;
 use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};
 use pallet_evm::{OnMethodCall, PrecompileResult, account::CrossAccountId, PrecompileHandle};
 use up_data_structs::{
-	CreateCollectionData, MAX_COLLECTION_DESCRIPTION_LENGTH, MAX_TOKEN_PREFIX_LENGTH,
-	MAX_COLLECTION_NAME_LENGTH,
+	CollectionName, CollectionDescription, CollectionTokenPrefix, CreateCollectionData,
+	CollectionMode, PropertyValue,
 };
 use frame_support::traits::Get;
 use pallet_common::{
 	CollectionById,
-	erc::{token_uri_key, CollectionHelpersEvents},
+	erc::{
+		static_property::{key, value as property_value},
+		CollectionHelpersEvents,
+	},
+	dispatch::CollectionDispatch,
 };
 use crate::{SelfWeightOf, Config, weights::WeightInfo};
 
@@ -47,9 +51,112 @@
 	}
 }
 
+fn convert_data<T: Config>(
+	caller: caller,
+	name: string,
+	description: string,
+	token_prefix: string,
+	base_uri: string,
+) -> Result<(
+	T::CrossAccountId,
+	CollectionName,
+	CollectionDescription,
+	CollectionTokenPrefix,
+	PropertyValue,
+)> {
+	let caller = T::CrossAccountId::from_eth(caller);
+	let name = name
+		.encode_utf16()
+		.collect::<Vec<u16>>()
+		.try_into()
+		.map_err(|_| error_field_too_long(stringify!(name), CollectionName::bound()))?;
+	let description = description
+		.encode_utf16()
+		.collect::<Vec<u16>>()
+		.try_into()
+		.map_err(|_| {
+			error_field_too_long(stringify!(description), CollectionDescription::bound())
+		})?;
+	let token_prefix = token_prefix.into_bytes().try_into().map_err(|_| {
+		error_field_too_long(stringify!(token_prefix), CollectionTokenPrefix::bound())
+	})?;
+	let base_uri_value = base_uri
+		.into_bytes()
+		.try_into()
+		.map_err(|_| error_field_too_long(stringify!(token_prefix), PropertyValue::bound()))?;
+	Ok((caller, name, description, token_prefix, base_uri_value))
+}
+
+fn make_data<T: Config>(
+	name: CollectionName,
+	mode: CollectionMode,
+	description: CollectionDescription,
+	token_prefix: CollectionTokenPrefix,
+	base_uri_value: PropertyValue,
+	add_properties: bool,
+) -> Result<CreateCollectionData<T::AccountId>> {
+	let mut properties = up_data_structs::CollectionPropertiesVec::default();
+	let mut token_property_permissions =
+		up_data_structs::CollectionPropertiesPermissionsVec::default();
+
+	token_property_permissions
+		.try_push(up_data_structs::PropertyKeyPermission {
+			key: key::url(),
+			permission: up_data_structs::PropertyPermission {
+				mutable: false,
+				collection_admin: true,
+				token_owner: false,
+			},
+		})
+		.map_err(|e| Error::Revert(format!("{:?}", e)))?;
+
+	if add_properties {
+		token_property_permissions
+			.try_push(up_data_structs::PropertyKeyPermission {
+				key: key::suffix(),
+				permission: up_data_structs::PropertyPermission {
+					mutable: false,
+					collection_admin: true,
+					token_owner: false,
+				},
+			})
+			.map_err(|e| Error::Revert(format!("{:?}", e)))?;
+
+		properties
+			.try_push(up_data_structs::Property {
+				key: key::schema_name(),
+				value: property_value::erc721(),
+			})
+			.map_err(|e| Error::Revert(format!("{:?}", e)))?;
+
+		if !base_uri_value.is_empty() {
+			properties
+				.try_push(up_data_structs::Property {
+					key: key::base_uri(),
+					value: base_uri_value,
+				})
+				.map_err(|e| Error::Revert(format!("{:?}", e)))?;
+		}
+	}
+
+	let data = CreateCollectionData {
+		name,
+		mode,
+		description,
+		token_prefix,
+		token_property_permissions,
+		properties,
+		..Default::default()
+	};
+	Ok(data)
+}
+
 /// @title Contract, which allows users to operate with collections
 #[solidity_interface(name = "CollectionHelpers", events(CollectionHelpersEvents))]
-impl<T: Config + pallet_nonfungible::Config> EvmCollectionHelpers<T> {
+impl<T> EvmCollectionHelpers<T>
+where
+	T: Config + pallet_nonfungible::Config + pallet_refungible::Config,
+{
 	/// Create an NFT collection
 	/// @param name Name of the collection
 	/// @param description Informative description of the collection
@@ -63,47 +170,97 @@
 		description: string,
 		token_prefix: string,
 	) -> Result<address> {
-		let caller = T::CrossAccountId::from_eth(caller);
-		let name = name
-			.encode_utf16()
-			.collect::<Vec<u16>>()
-			.try_into()
-			.map_err(|_| error_feild_too_long(stringify!(name), MAX_COLLECTION_NAME_LENGTH))?;
-		let description = description
-			.encode_utf16()
-			.collect::<Vec<u16>>()
-			.try_into()
-			.map_err(|_| {
-				error_feild_too_long(stringify!(description), MAX_COLLECTION_DESCRIPTION_LENGTH)
-			})?;
-		let token_prefix = token_prefix
-			.into_bytes()
-			.try_into()
-			.map_err(|_| error_feild_too_long(stringify!(token_prefix), MAX_TOKEN_PREFIX_LENGTH))?;
+		let (caller, name, description, token_prefix, _base_uri_value) =
+			convert_data::<T>(caller, name, description, token_prefix, "".into())?;
+		let data = make_data::<T>(
+			name,
+			CollectionMode::NFT,
+			description,
+			token_prefix,
+			Default::default(),
+			false,
+		)?;
+		let collection_id = T::CollectionDispatch::create(caller, data)
+			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
 
-		let key = token_uri_key();
-		let permission = up_data_structs::PropertyPermission {
-			mutable: true,
-			collection_admin: true,
-			token_owner: false,
-		};
-		let mut token_property_permissions =
-			up_data_structs::CollectionPropertiesPermissionsVec::default();
-		token_property_permissions
-			.try_push(up_data_structs::PropertyKeyPermission { key, permission })
-			.map_err(|e| Error::Revert(format!("{:?}", e)))?;
+		let address = pallet_common::eth::collection_id_to_address(collection_id);
+		Ok(address)
+	}
 
-		let data = CreateCollectionData {
+	#[weight(<SelfWeightOf<T>>::create_collection())]
+	#[solidity(rename_selector = "createERC721MetadataCompatibleCollection")]
+	fn create_nonfungible_collection_with_properties(
+		&mut self,
+		caller: caller,
+		name: string,
+		description: string,
+		token_prefix: string,
+		base_uri: string,
+	) -> Result<address> {
+		let (caller, name, description, token_prefix, base_uri_value) =
+			convert_data::<T>(caller, name, description, token_prefix, base_uri)?;
+		let data = make_data::<T>(
 			name,
+			CollectionMode::NFT,
 			description,
 			token_prefix,
-			token_property_permissions,
-			..Default::default()
-		};
+			base_uri_value,
+			true,
+		)?;
+		let collection_id = T::CollectionDispatch::create(caller, data)
+			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
 
-		let collection_id =
-			<pallet_nonfungible::Pallet<T>>::init_collection(caller.clone(), data, false)
-				.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
+		let address = pallet_common::eth::collection_id_to_address(collection_id);
+		Ok(address)
+	}
+
+	#[weight(<SelfWeightOf<T>>::create_collection())]
+	fn create_refungible_collection(
+		&self,
+		caller: caller,
+		name: string,
+		description: string,
+		token_prefix: string,
+	) -> Result<address> {
+		let (caller, name, description, token_prefix, _base_uri) =
+			convert_data::<T>(caller, name, description, token_prefix, "".into())?;
+		let data = make_data::<T>(
+			name,
+			CollectionMode::ReFungible,
+			description,
+			token_prefix,
+			Default::default(),
+			false,
+		)?;
+		let collection_id = T::CollectionDispatch::create(caller, data)
+			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
+
+		let address = pallet_common::eth::collection_id_to_address(collection_id);
+		Ok(address)
+	}
+
+	#[weight(<SelfWeightOf<T>>::create_collection())]
+	#[solidity(rename_selector = "createERC721MetadataCompatibleRFTCollection")]
+	fn create_refungible_collection_with_properties(
+		&mut self,
+		caller: caller,
+		name: string,
+		description: string,
+		token_prefix: string,
+		base_uri: string,
+	) -> Result<address> {
+		let (caller, name, description, token_prefix, base_uri_value) =
+			convert_data::<T>(caller, name, description, token_prefix, base_uri)?;
+		let data = make_data::<T>(
+			name,
+			CollectionMode::NFT,
+			description,
+			token_prefix,
+			base_uri_value,
+			true,
+		)?;
+		let collection_id = T::CollectionDispatch::create(caller, data)
+			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
 
 		let address = pallet_common::eth::collection_id_to_address(collection_id);
 		Ok(address)
@@ -124,7 +281,9 @@
 
 /// Implements [`OnMethodCall`], which delegates call to [`EvmCollectionHelpers`]
 pub struct CollectionHelpersOnMethodCall<T: Config>(PhantomData<*const T>);
-impl<T: Config + pallet_nonfungible::Config> OnMethodCall<T> for CollectionHelpersOnMethodCall<T> {
+impl<T: Config + pallet_nonfungible::Config + pallet_refungible::Config> OnMethodCall<T>
+	for CollectionHelpersOnMethodCall<T>
+{
 	fn is_reserved(contract: &sp_core::H160) -> bool {
 		contract == &T::ContractAddress::get()
 	}
@@ -152,6 +311,6 @@
 generate_stubgen!(collection_helper_impl, CollectionHelpersCall<()>, true);
 generate_stubgen!(collection_helper_iface, CollectionHelpersCall<()>, false);
 
-fn error_feild_too_long(feild: &str, bound: u32) -> Error {
+fn error_field_too_long(feild: &str, bound: usize) -> Error {
 	Error::Revert(format!("{} is too long. Max length is {}.", feild, bound))
 }

binary blob — no preview

--- a/pallets/unique/src/eth/stubs/CollectionHelpers.sol
+++ b/pallets/unique/src/eth/stubs/CollectionHelpers.sol
@@ -29,7 +29,7 @@
 	);
 }
 
-// Selector: 20947cd0
+// Selector: c20653fc
 contract CollectionHelpers is Dummy, ERC165, CollectionHelpersEvents {
 	// Selector: createNonfungibleCollection(string,string,string) e34a6844
 	function createNonfungibleCollection(
@@ -45,6 +45,36 @@
 		return 0x0000000000000000000000000000000000000000;
 	}
 
+	// Selector: createERC721MetadataCompatibleCollection(string,string,string,string) a634a5f9
+	function createERC721MetadataCompatibleCollection(
+		string memory name,
+		string memory description,
+		string memory tokenPrefix,
+		string memory baseUri
+	) public returns (address) {
+		require(false, stub_error);
+		name;
+		description;
+		tokenPrefix;
+		baseUri;
+		dummy = 0;
+		return 0x0000000000000000000000000000000000000000;
+	}
+
+	// Selector: createRefungibleCollection(string,string,string) 44a68ad5
+	function createRefungibleCollection(
+		string memory name,
+		string memory description,
+		string memory tokenPrefix
+	) public view returns (address) {
+		require(false, stub_error);
+		name;
+		description;
+		tokenPrefix;
+		dummy;
+		return 0x0000000000000000000000000000000000000000;
+	}
+
 	// Selector: isCollectionExist(address) c3de1494
 	function isCollectionExist(address collectionAddress)
 		public

--- a/pallets/unique/src/lib.rs
+++ b/pallets/unique/src/lib.rs
@@ -352,7 +352,7 @@
 
 			// =========
 
-			T::CollectionDispatch::create(T::CrossAccountId::from_sub(sender), data)?;
+			let _id = T::CollectionDispatch::create(T::CrossAccountId::from_sub(sender), data)?;
 
 			Ok(())
 		}

--- a/primitives/data-structs/Cargo.toml
+++ b/primitives/data-structs/Cargo.toml
@@ -6,7 +6,7 @@
 license = 'GPLv3'
 homepage = "https://unique.network"
 repository = 'https://github.com/UniqueNetwork/unique-chain'
-version = '0.1.1'
+version = '0.1.2'
 
 [dependencies]
 scale-info = { version = "2.0.1", default-features = false, features = [

--- a/primitives/data-structs/src/lib.rs
+++ b/primitives/data-structs/src/lib.rs
@@ -286,6 +286,10 @@
 	}
 }
 
+pub type CollectionName = BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>;
+pub type CollectionDescription = BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>;
+pub type CollectionTokenPrefix = BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>;
+
 /// Collection parameters, used in storage (see [`RpcCollection`] for the RPC version).
 #[struct_versioning::versioned(version = 2, upper)]
 #[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]
@@ -294,9 +298,9 @@
 	pub mode: CollectionMode,
 	#[version(..2)]
 	pub access: AccessMode,
-	pub name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,
-	pub description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,
-	pub token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,
+	pub name: CollectionName,
+	pub description: CollectionDescription,
+	pub token_prefix: CollectionTokenPrefix,
 
 	#[version(..2)]
 	pub mint_mode: bool,
@@ -350,9 +354,9 @@
 	#[derivative(Default(value = "CollectionMode::NFT"))]
 	pub mode: CollectionMode,
 	pub access: Option<AccessMode>,
-	pub name: BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>,
-	pub description: BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>,
-	pub token_prefix: BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>,
+	pub name: CollectionName,
+	pub description: CollectionDescription,
+	pub token_prefix: CollectionTokenPrefix,
 	pub pending_sponsor: Option<AccountId>,
 	pub limits: Option<CollectionLimits>,
 	pub permissions: Option<CollectionPermissions>,

--- a/runtime/common/src/dispatch.rs
+++ b/runtime/common/src/dispatch.rs
@@ -17,6 +17,7 @@
 use frame_support::{dispatch::DispatchResult, ensure};
 use pallet_evm::{PrecompileHandle, PrecompileResult};
 use sp_core::H160;
+use sp_runtime::DispatchError;
 use sp_std::{borrow::ToOwned, vec::Vec};
 use pallet_common::{
 	CollectionById, CollectionHandle, CommonCollectionOperations, erc::CommonEvmHandler,
@@ -30,6 +31,7 @@
 };
 use up_data_structs::{
 	CollectionMode, CreateCollectionData, MAX_DECIMAL_POINTS, mapping::TokenAddressMapping,
+	CollectionId,
 };
 
 pub enum CollectionDispatchT<T>
@@ -51,8 +53,8 @@
 	fn create(
 		sender: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
-	) -> DispatchResult {
-		let _id = match data.mode {
+	) -> Result<CollectionId, DispatchError> {
+		let id = match data.mode {
 			CollectionMode::NFT => <PalletNonfungible<T>>::init_collection(sender, data, false)?,
 			CollectionMode::Fungible(decimal_points) => {
 				// check params
@@ -64,7 +66,7 @@
 			}
 			CollectionMode::ReFungible => <PalletRefungible<T>>::init_collection(sender, data)?,
 		};
-		Ok(())
+		Ok(id)
 	}
 
 	fn destroy(sender: T::CrossAccountId, collection: CollectionHandle<T>) -> DispatchResult {

--- a/tests/src/eth/api/CollectionHelpers.sol
+++ b/tests/src/eth/api/CollectionHelpers.sol
@@ -20,7 +20,7 @@
 	);
 }
 
-// Selector: 20947cd0
+// Selector: c20653fc
 interface CollectionHelpers is Dummy, ERC165, CollectionHelpersEvents {
 	// Selector: createNonfungibleCollection(string,string,string) e34a6844
 	function createNonfungibleCollection(
@@ -29,6 +29,21 @@
 		string memory tokenPrefix
 	) external returns (address);
 
+	// Selector: createERC721MetadataCompatibleCollection(string,string,string,string) a634a5f9
+	function createERC721MetadataCompatibleCollection(
+		string memory name,
+		string memory description,
+		string memory tokenPrefix,
+		string memory baseUri
+	) external returns (address);
+
+	// Selector: createRefungibleCollection(string,string,string) 44a68ad5
+	function createRefungibleCollection(
+		string memory name,
+		string memory description,
+		string memory tokenPrefix
+	) external view returns (address);
+
 	// Selector: isCollectionExist(address) c3de1494
 	function isCollectionExist(address collectionAddress)
 		external

--- a/tests/src/eth/api/UniqueRefungibleToken.sol
+++ b/tests/src/eth/api/UniqueRefungibleToken.sol
@@ -24,24 +24,45 @@
 
 // Selector: 942e8b22
 interface ERC20 is Dummy, ERC165, ERC20Events {
+	// @return the name of the token.
+	//
 	// Selector: name() 06fdde03
 	function name() external view returns (string memory);
 
+	// @return the symbol of the token.
+	//
 	// Selector: symbol() 95d89b41
 	function symbol() external view returns (string memory);
 
+	// @dev Total number of tokens in existence
+	//
 	// Selector: totalSupply() 18160ddd
 	function totalSupply() external view returns (uint256);
 
+	// @dev Not supported
+	//
 	// Selector: decimals() 313ce567
 	function decimals() external view returns (uint8);
 
+	// @dev Gets the balance of the specified address.
+	// @param owner The address to query the balance of.
+	// @return An uint256 representing the amount owned by the passed address.
+	//
 	// Selector: balanceOf(address) 70a08231
 	function balanceOf(address owner) external view returns (uint256);
 
+	// @dev Transfer token for a specified address
+	// @param to The address to transfer to.
+	// @param amount The amount to be transferred.
+	//
 	// Selector: transfer(address,uint256) a9059cbb
 	function transfer(address to, uint256 amount) external returns (bool);
 
+	// @dev Transfer tokens from one address to another
+	// @param from address The address which you want to send tokens from
+	// @param to address The address which you want to transfer to
+	// @param amount uint256 the amount of tokens to be transferred
+	//
 	// Selector: transferFrom(address,address,uint256) 23b872dd
 	function transferFrom(
 		address from,
@@ -49,9 +70,22 @@
 		uint256 amount
 	) external returns (bool);
 
+	// @dev Approve the passed address to spend the specified amount of tokens on behalf of `msg.sender`.
+	// Beware that changing an allowance with this method brings the risk that someone may use both the old
+	// and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
+	// race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
+	// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+	// @param spender The address which will spend the funds.
+	// @param amount The amount of tokens to be spent.
+	//
 	// Selector: approve(address,uint256) 095ea7b3
 	function approve(address spender, uint256 amount) external returns (bool);
 
+	// @dev Function to check the amount of tokens that an owner allowed to a spender.
+	// @param owner address The address which owns the funds.
+	// @param spender address The address which will spend the funds.
+	// @return A uint256 specifying the amount of tokens still available for the spender.
+	//
 	// Selector: allowance(address,address) dd62ed3e
 	function allowance(address owner, address spender)
 		external
@@ -61,9 +95,18 @@
 
 // Selector: ab8deb37
 interface ERC20UniqueExtensions is Dummy, ERC165 {
+	// @dev Function that burns an amount of the token of a given account,
+	// deducting from the sender's allowance for said account.
+	// @param from The account whose tokens will be burnt.
+	// @param amount The amount that will be burnt.
+	//
 	// Selector: burnFrom(address,uint256) 79cc6790
 	function burnFrom(address from, uint256 amount) external returns (bool);
 
+	// @dev Function that changes total amount of the tokens.
+	//  Throws if `msg.sender` doesn't owns all of the tokens.
+	// @param amount New total amount of the tokens.
+	//
 	// Selector: repartition(uint256) d2418ca7
 	function repartition(uint256 amount) external returns (bool);
 }

--- a/tests/src/eth/collectionHelpersAbi.json
+++ b/tests/src/eth/collectionHelpersAbi.json
@@ -22,6 +22,18 @@
     "inputs": [
       { "internalType": "string", "name": "name", "type": "string" },
       { "internalType": "string", "name": "description", "type": "string" },
+      { "internalType": "string", "name": "tokenPrefix", "type": "string" },
+      { "internalType": "string", "name": "baseUri", "type": "string" }
+    ],
+    "name": "createERC721MetadataCompatibleCollection",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "string", "name": "name", "type": "string" },
+      { "internalType": "string", "name": "description", "type": "string" },
       { "internalType": "string", "name": "tokenPrefix", "type": "string" }
     ],
     "name": "createNonfungibleCollection",
@@ -31,6 +43,17 @@
   },
   {
     "inputs": [
+      { "internalType": "string", "name": "name", "type": "string" },
+      { "internalType": "string", "name": "description", "type": "string" },
+      { "internalType": "string", "name": "tokenPrefix", "type": "string" }
+    ],
+    "name": "createRefungibleCollection",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
       {
         "internalType": "address",
         "name": "collectionAddress",

--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -72,6 +72,147 @@
   });
 });
 
+describe('Check ERC721 token URI for NFT', () => {
+  itWeb3('Empty tokenURI', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', '').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress);
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('');
+  });
+
+  itWeb3('TokenURI from url', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', 'BaseURI_').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress);
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+    
+    // Set URL
+    await contract.methods.setProperty(nextTokenId, 'url', Buffer.from('Token URI')).send();
+      
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Token URI');
+  });
+
+  itWeb3('TokenURI from baseURI + tokenId', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', 'BaseURI_').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress);
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+          
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + nextTokenId);
+  });
+
+  itWeb3('TokenURI from baseURI + suffix', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', 'BaseURI_').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress);
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+          
+    // Set suffix
+    const suffix = '/some/suffix';
+    await contract.methods.setProperty(nextTokenId, 'suffix', Buffer.from(suffix)).send();
+
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + suffix);
+  });
+});
+
 describe('NFT: Plain calls', () => {
   itWeb3('Can perform mint()', async ({web3, api, privateKeyWrapper}) => {
     const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);

--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -15,7 +15,7 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 import {approve, createCollection, createRefungibleToken, transfer, transferFrom, UNIQUE} from '../util/helpers';
-import {createEthAccount, createEthAccountWithBalance, GAS_ARGS, itWeb3, normalizeEvents, recordEthFee, recordEvents, subToEth, tokenIdToAddress, transferBalanceToEth} from './util/helpers';
+import {collectionIdToAddress, createEthAccount, createEthAccountWithBalance, evmCollection, evmCollectionHelpers, GAS_ARGS, getCollectionAddressFromResult, itWeb3, normalizeEvents, recordEthFee, recordEvents, subToEth, tokenIdToAddress, transferBalanceToEth} from './util/helpers';
 import reFungibleTokenAbi from './reFungibleTokenAbi.json';
 
 import chai from 'chai';
@@ -73,6 +73,148 @@
   });
 });
 
+// FIXME: Need erc721 for ReFubgible.
+describe.skip('Check ERC721 token URI for ReFungible', () => {
+  itWeb3('Empty tokenURI', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', '').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress, {type: 'ReFungible'});
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('');
+  });
+
+  itWeb3('TokenURI from url', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', 'BaseURI_').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress, {type: 'ReFungible'});
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+    
+    // Set URL
+    await contract.methods.setProperty(nextTokenId, 'url', Buffer.from('Token URI')).send();
+      
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Token URI');
+  });
+
+  itWeb3('TokenURI from baseURI + tokenId', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', 'BaseURI_').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress, {type: 'ReFungible'});
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+          
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + nextTokenId);
+  });
+
+  itWeb3('TokenURI from baseURI + suffix', async ({web3, api, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createERC721MetadataCompatibleCollection('Mint collection', '1', '1', 'BaseURI_').send();
+    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
+    const receiver = createEthAccount(web3);
+    const contract = evmCollection(web3, owner, collectionIdAddress, {type: 'ReFungible'});
+    
+    const nextTokenId = await contract.methods.nextTokenId().call();
+    expect(nextTokenId).to.be.equal('1');
+    result = await contract.methods.mint(
+      receiver,
+      nextTokenId,
+    ).send();
+          
+    // Set suffix
+    const suffix = '/some/suffix';
+    await contract.methods.setProperty(nextTokenId, 'suffix', Buffer.from(suffix)).send();
+
+    const events = normalizeEvents(result.events);
+    const address = collectionIdToAddress(collectionId);
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: '0x0000000000000000000000000000000000000000',
+          to: receiver,
+          tokenId: nextTokenId,
+        },
+      },
+    ]);
+
+    expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('BaseURI_' + suffix);
+  });
+});
+
 describe('Refungible: Plain calls', () => {
   itWeb3('Can perform approve()', async ({web3, api, privateKeyWrapper}) => {
     const alice = privateKeyWrapper('//Alice');

--- a/tests/src/eth/util/helpers.ts
+++ b/tests/src/eth/util/helpers.ts
@@ -25,12 +25,13 @@
 import Web3 from 'web3';
 import config from '../../config';
 import getBalance from '../../substrate/get-balance';
-import privateKey from '../../substrate/privateKey';
 import usingApi, {submitTransactionAsync} from '../../substrate/substrate-api';
 import waitNewBlocks from '../../substrate/wait-new-blocks';
-import {CrossAccountId, getDetailedCollectionInfo, getGenericResult, UNIQUE} from '../../util/helpers';
+import {CollectionMode, CrossAccountId, getDetailedCollectionInfo, getGenericResult, UNIQUE} from '../../util/helpers';
 import collectionHelpersAbi from '../collectionHelpersAbi.json';
+import fungibleAbi from '../fungibleAbi.json';
 import nonFungibleAbi from '../nonFungibleAbi.json';
+import refungibleAbi from '../refungibleAbi.json';
 import contractHelpersAbi from './contractHelpersAbi.json';
 
 export const GAS_ARGS = {gas: 2500000};
@@ -307,8 +308,26 @@
  * @param caller - eth address
  * @returns 
  */
-export function evmCollection(web3: Web3, caller: string, collection: string) {
-  return new web3.eth.Contract(nonFungibleAbi as any, collection, {from: caller, ...GAS_ARGS});
+export function evmCollection(web3: Web3, caller: string, collection: string, mode: CollectionMode = {type: 'NFT'}) {
+  let abi;
+  switch (mode.type) {
+    case 'Fungible':
+      abi = fungibleAbi;
+      break;
+    
+    case 'NFT':
+      abi = nonFungibleAbi;
+      break;
+    
+    case 'ReFungible':
+      abi = refungibleAbi;
+      break;
+
+    default:
+      throw 'Bad collection mode';
+  }
+  const contract = new web3.eth.Contract(abi as any, collection, {from: caller, ...GAS_ARGS});
+  return contract;
 }
 
 /**