git.delta.rocks / unique-network / refs/commits / d2735a42ddb8

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5912,6 +5912,7 @@
 name = "pallet-common"
 version = "0.1.0"
 dependencies = [
+ "ethereum",
  "evm-coder",
  "fp-evm-mapping",
  "frame-benchmarking",

--- a/Makefile
+++ b/Makefile
@@ -16,12 +16,12 @@
 CONTRACT_HELPERS_ABI=./tests/src/eth/util/contractHelpersAbi.json
 
 COLLECTION_HELPER_STUBS=./pallets/unique/src/eth/stubs/
-COLLECTION_HELPER_ABI=./tests/src/eth/collectionHelperAbi.json
+COLLECTION_HELPER_ABI=./tests/src/eth/collectionHelpersAbi.json
 
 TESTS_API=./tests/src/eth/api/
 
 .PHONY: regenerate_solidity
-regenerate_solidity: UniqueFungible.sol UniqueNFT.sol ContractHelpers.sol CollectionHelper.sol
+regenerate_solidity: UniqueFungible.sol UniqueNFT.sol ContractHelpers.sol CollectionHelpers.sol
 
 UniqueFungible.sol:
 	PACKAGE=pallet-fungible NAME=erc::gen_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
@@ -35,7 +35,7 @@
 	PACKAGE=pallet-evm-contract-helpers NAME=eth::contract_helpers_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
 	PACKAGE=pallet-evm-contract-helpers NAME=eth::contract_helpers_impl OUTPUT=$(CONTRACT_HELPERS_STUBS)/$@ ./.maintain/scripts/generate_sol.sh
 
-CollectionHelper.sol:
+CollectionHelpers.sol:
 	PACKAGE=pallet-unique NAME=eth::collection_helper_iface OUTPUT=$(TESTS_API)/$@ ./.maintain/scripts/generate_sol.sh
 	PACKAGE=pallet-unique NAME=eth::collection_helper_impl OUTPUT=$(COLLECTION_HELPER_STUBS)/$@ ./.maintain/scripts/generate_sol.sh
 
@@ -51,11 +51,11 @@
 	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
 
-CollectionHelper: CollectionHelper.sol
-	INPUT=$(COLLECTION_HELPER_STUBS)/$< OUTPUT=$(COLLECTION_HELPER_STUBS)/CollectionHelper.raw ./.maintain/scripts/compile_stub.sh
+CollectionHelpers: CollectionHelpers.sol
+	INPUT=$(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 ContractHelpers CollectionHelper
+evm_stubs: UniqueFungible UniqueNFT ContractHelpers CollectionHelpers
 
 .PHONY: _bench
 _bench:

--- a/pallets/common/Cargo.toml
+++ b/pallets/common/Cargo.toml
@@ -21,6 +21,7 @@
 up-data-structs = { default-features = false, path = '../../primitives/data-structs' }
 pallet-evm-coder-substrate = { default-features = false, path = '../../pallets/evm-coder-substrate' }
 evm-coder = { default-features = false, path = '../../crates/evm-coder' }
+ethereum = { version = "0.12.0", default-features = false }
 pallet-evm = { default-features = false, git = "https://github.com/uniquenetwork/frontier", branch = "unique-polkadot-v0.9.21-logs" }
 
 serde = { version = "1.0.130", default-features = false }

--- a/pallets/common/src/dispatch.rs
+++ b/pallets/common/src/dispatch.rs
@@ -56,7 +56,10 @@
 }
 
 pub trait CollectionDispatch<T: Config> {
-	fn create(sender: T::AccountId, data: CreateCollectionData<T::AccountId>) -> DispatchResult;
+	fn create(
+		sender: T::CrossAccountId,
+		data: CreateCollectionData<T::AccountId>,
+	) -> DispatchResult;
 	fn destroy(sender: T::CrossAccountId, handle: CollectionHandle<T>) -> DispatchResult;
 
 	fn dispatch(handle: CollectionHandle<T>) -> Self;

--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -15,7 +15,7 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 use evm_coder::{
-	solidity_interface, solidity,
+	solidity_interface, solidity, ToLog,
 	types::*,
 	execution::{Result, Error},
 };
@@ -28,6 +28,16 @@
 
 use crate::{Pallet, CollectionHandle, Config, CollectionProperties};
 
+#[derive(ToLog)]
+pub enum CollectionHelpersEvents {
+	CollectionCreated {
+		#[indexed]
+		owner: address,
+		#[indexed]
+		collection_id: address,
+	},
+}
+
 /// Does not always represent a full collection, for RFT it is either
 /// collection (Implementing ERC721), or specific collection token (Implementing ERC20)
 pub trait CommonEvmHandler {

--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -21,12 +21,12 @@
 use core::ops::{Deref, DerefMut};
 use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};
 use sp_std::vec::Vec;
-use pallet_evm::account::CrossAccountId;
+use pallet_evm::{account::CrossAccountId, Pallet as PalletEvm};
+use evm_coder::ToLog;
 use frame_support::{
 	dispatch::{DispatchErrorWithPostInfo, DispatchResultWithPostInfo, Weight, PostDispatchInfo},
 	ensure,
 	traits::{Imbalance, Get, Currency, WithdrawReasons, ExistenceRequirement},
-	BoundedVec,
 	weights::Pays,
 	transactional,
 };
@@ -54,7 +54,6 @@
 	CreateItemExData,
 	SponsoringRateLimit,
 	budget::Budget,
-	COLLECTION_FIELD_LIMIT,
 	PhantomType,
 	Property,
 	Properties,
@@ -218,7 +217,11 @@
 
 	#[pallet::config]
 	pub trait Config:
-		frame_system::Config + pallet_evm_coder_substrate::Config + TypeInfo + account::Config
+		frame_system::Config
+		+ pallet_evm_coder_substrate::Config
+		+ pallet_evm::Config
+		+ TypeInfo
+		+ account::Config
 	{
 		type WeightInfo: WeightInfo;
 		type Event: IsType<<Self as frame_system::Config>::Event> + From<Event<Self>>;
@@ -232,6 +235,7 @@
 		type CollectionDispatch: CollectionDispatch<Self>;
 
 		type TreasuryAccountId: Get<Self::AccountId>;
+		type ContractAddress: Get<H160>;
 
 		type EvmTokenAddressMapping: TokenAddressMapping<H160>;
 		type CrossTokenAddressMapping: TokenAddressMapping<Self::CrossAccountId>;
@@ -722,7 +726,7 @@
 
 impl<T: Config> Pallet<T> {
 	pub fn init_collection(
-		owner: T::AccountId,
+		owner: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
 	) -> Result<CollectionId, DispatchError> {
 		{
@@ -748,7 +752,7 @@
 		// =========
 
 		let collection = Collection {
-			owner: owner.clone(),
+			owner: owner.as_sub().clone(),
 			name: data.name,
 			mode: data.mode.clone(),
 			description: data.description,
@@ -794,7 +798,7 @@
 				),
 			);
 			<T as Config>::Currency::settle(
-				&owner,
+				&owner.as_sub(),
 				imbalance,
 				WithdrawReasons::TRANSFER,
 				ExistenceRequirement::KeepAlive,
@@ -803,7 +807,18 @@
 		}
 
 		<CreatedCollectionCount<T>>::put(created_count);
-		<Pallet<T>>::deposit_event(Event::CollectionCreated(id, data.mode.id(), owner.clone()));
+		<Pallet<T>>::deposit_event(Event::CollectionCreated(
+			id,
+			data.mode.id(),
+			owner.as_sub().clone(),
+		));
+		<PalletEvm<T>>::deposit_log(
+			erc::CollectionHelpersEvents::CollectionCreated {
+				owner: *owner.as_eth(),
+				collection_id: eth::collection_id_to_address(id),
+			}
+			.to_log(T::ContractAddress::get()),
+		);
 		<CollectionById<T>>::insert(id, collection);
 		Ok(id)
 	}

--- a/pallets/evm-coder-substrate/src/lib.rs
+++ b/pallets/evm-coder-substrate/src/lib.rs
@@ -66,9 +66,7 @@
 	}
 
 	#[pallet::config]
-	pub trait Config: frame_system::Config {
-		type GasWeightMapping: pallet_evm::GasWeightMapping;
-	}
+	pub trait Config: frame_system::Config + pallet_evm::Config {}
 
 	#[pallet::pallet]
 	pub struct Pallet<T>(_);

--- a/pallets/fungible/src/lib.rs
+++ b/pallets/fungible/src/lib.rs
@@ -134,7 +134,7 @@
 
 impl<T: Config> Pallet<T> {
 	pub fn init_collection(
-		owner: T::AccountId,
+		owner: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
 	) -> Result<CollectionId, DispatchError> {
 		<PalletCommon<T>>::init_collection(owner, data)

binary blob — no preview

--- a/pallets/fungible/src/stubs/UniqueFungible.sol
+++ b/pallets/fungible/src/stubs/UniqueFungible.sol
@@ -127,7 +127,7 @@
 	}
 }
 
-// Selector: f5652829
+// Selector: c894dc35
 contract Collection is Dummy, ERC165 {
 	// Selector: setCollectionProperty(string,bytes) 2f073f66
 	function setCollectionProperty(string memory key, bytes memory value)
@@ -173,8 +173,16 @@
 		dummy = 0;
 	}
 
-	// Selector: setLimit(string,string) bf4d2014
-	function setLimit(string memory limit, string memory value) public {
+	// Selector: setLimit(string,uint32) 68db30ca
+	function setLimit(string memory limit, uint32 value) public {
+		require(false, stub_error);
+		limit;
+		value;
+		dummy = 0;
+	}
+
+	// Selector: setLimit(string,bool) ea67e4c2
+	function setLimit(string memory limit, bool value) public {
 		require(false, stub_error);
 		limit;
 		value;

--- a/pallets/nonfungible/src/lib.rs
+++ b/pallets/nonfungible/src/lib.rs
@@ -295,7 +295,7 @@
 // unchecked calls skips any permission checks
 impl<T: Config> Pallet<T> {
 	pub fn init_collection(
-		owner: T::AccountId,
+		owner: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
 	) -> Result<CollectionId, DispatchError> {
 		<PalletCommon<T>>::init_collection(owner, data)

binary blob — no preview

--- a/pallets/nonfungible/src/stubs/UniqueNFT.sol
+++ b/pallets/nonfungible/src/stubs/UniqueNFT.sol
@@ -330,57 +330,7 @@
 	}
 }
 
-// Selector: d74d154f
-contract ERC721UniqueExtensions is Dummy, ERC165 {
-	// Selector: transfer(address,uint256) a9059cbb
-	function transfer(address to, uint256 tokenId) public {
-		require(false, stub_error);
-		to;
-		tokenId;
-		dummy = 0;
-	}
-
-	// Selector: burnFrom(address,uint256) 79cc6790
-	function burnFrom(address from, uint256 tokenId) public {
-		require(false, stub_error);
-		from;
-		tokenId;
-		dummy = 0;
-	}
-
-	// Selector: nextTokenId() 75794a3c
-	function nextTokenId() public view returns (uint256) {
-		require(false, stub_error);
-		dummy;
-		return 0;
-	}
-
-	// Selector: mintBulk(address,uint256[]) 44a9945e
-	function mintBulk(address to, uint256[] memory tokenIds)
-		public
-		returns (bool)
-	{
-		require(false, stub_error);
-		to;
-		tokenIds;
-		dummy = 0;
-		return false;
-	}
-
-	// Selector: mintBulkWithTokenURI(address,(uint256,string)[]) 36543006
-	function mintBulkWithTokenURI(address to, Tuple0[] memory tokens)
-		public
-		returns (bool)
-	{
-		require(false, stub_error);
-		to;
-		tokens;
-		dummy = 0;
-		return false;
-	}
-}
-
-// Selector: f5652829
+// Selector: c894dc35
 contract Collection is Dummy, ERC165 {
 	// Selector: setCollectionProperty(string,bytes) 2f073f66
 	function setCollectionProperty(string memory key, bytes memory value)
@@ -426,8 +376,16 @@
 		dummy = 0;
 	}
 
-	// Selector: setLimit(string,string) bf4d2014
-	function setLimit(string memory limit, string memory value) public {
+	// Selector: setLimit(string,uint32) 68db30ca
+	function setLimit(string memory limit, uint32 value) public {
+		require(false, stub_error);
+		limit;
+		value;
+		dummy = 0;
+	}
+
+	// Selector: setLimit(string,bool) ea67e4c2
+	function setLimit(string memory limit, bool value) public {
 		require(false, stub_error);
 		limit;
 		value;
@@ -442,6 +400,56 @@
 	}
 }
 
+// Selector: d74d154f
+contract ERC721UniqueExtensions is Dummy, ERC165 {
+	// Selector: transfer(address,uint256) a9059cbb
+	function transfer(address to, uint256 tokenId) public {
+		require(false, stub_error);
+		to;
+		tokenId;
+		dummy = 0;
+	}
+
+	// Selector: burnFrom(address,uint256) 79cc6790
+	function burnFrom(address from, uint256 tokenId) public {
+		require(false, stub_error);
+		from;
+		tokenId;
+		dummy = 0;
+	}
+
+	// Selector: nextTokenId() 75794a3c
+	function nextTokenId() public view returns (uint256) {
+		require(false, stub_error);
+		dummy;
+		return 0;
+	}
+
+	// Selector: mintBulk(address,uint256[]) 44a9945e
+	function mintBulk(address to, uint256[] memory tokenIds)
+		public
+		returns (bool)
+	{
+		require(false, stub_error);
+		to;
+		tokenIds;
+		dummy = 0;
+		return false;
+	}
+
+	// Selector: mintBulkWithTokenURI(address,(uint256,string)[]) 36543006
+	function mintBulkWithTokenURI(address to, Tuple0[] memory tokens)
+		public
+		returns (bool)
+	{
+		require(false, stub_error);
+		to;
+		tokens;
+		dummy = 0;
+		return false;
+	}
+}
+
 contract UniqueNFT is
 	Dummy,
 	ERC165,

--- a/pallets/proxy-rmrk-core/src/lib.rs
+++ b/pallets/proxy-rmrk-core/src/lib.rs
@@ -139,7 +139,8 @@
 				..Default::default()
 			};
 
-			let collection_id_res = <PalletNft<T>>::init_collection(sender.clone(), data);
+			let collection_id_res =
+				<PalletNft<T>>::init_collection(T::CrossAccountId::from_sub(sender.clone()), data);
 
 			if let Err(DispatchError::Arithmetic(_)) = &collection_id_res {
 				return Err(<Error<T>>::NoAvailableCollectionId.into());

--- a/pallets/proxy-rmrk-equip/src/lib.rs
+++ b/pallets/proxy-rmrk-equip/src/lib.rs
@@ -94,7 +94,7 @@
 				..Default::default()
 			};
 
-			let collection_id_res = <PalletNft<T>>::init_collection(sender.clone(), data);
+			let collection_id_res = <PalletNft<T>>::init_collection(cross_sender.clone(), data);
 
 			if let Err(DispatchError::Arithmetic(_)) = &collection_id_res {
 				return Err(<Error<T>>::NoAvailableBaseId.into());

--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -197,7 +197,7 @@
 // unchecked calls skips any permission checks
 impl<T: Config> Pallet<T> {
 	pub fn init_collection(
-		owner: T::AccountId,
+		owner: T::CrossAccountId,
 		data: CreateCollectionData<T::AccountId>,
 	) -> Result<CollectionId, DispatchError> {
 		<PalletCommon<T>>::init_collection(owner, data)

--- a/pallets/unique/src/eth/mod.rs
+++ b/pallets/unique/src/eth/mod.rs
@@ -24,14 +24,17 @@
 	MAX_COLLECTION_NAME_LENGTH,
 };
 use frame_support::traits::Get;
-use pallet_common::{CollectionById, erc::token_uri_key};
+use pallet_common::{
+	CollectionById,
+	erc::{token_uri_key, CollectionHelpersEvents},
+};
 use crate::{SelfWeightOf, Config, weights::WeightInfo};
 
 use sp_std::vec::Vec;
 use alloc::format;
 
-struct EvmCollectionHelper<T: Config>(SubstrateRecorder<T>);
-impl<T: Config> WithRecorder<T> for EvmCollectionHelper<T> {
+struct EvmCollectionHelpers<T: Config>(SubstrateRecorder<T>);
+impl<T: Config> WithRecorder<T> for EvmCollectionHelpers<T> {
 	fn recorder(&self) -> &SubstrateRecorder<T> {
 		&self.0
 	}
@@ -41,8 +44,8 @@
 	}
 }
 
-#[solidity_interface(name = "CollectionHelper")]
-impl<T: Config + pallet_nonfungible::Config> EvmCollectionHelper<T> {
+#[solidity_interface(name = "CollectionHelpers", events(CollectionHelpersEvents))]
+impl<T: Config + pallet_nonfungible::Config> EvmCollectionHelpers<T> {
 	#[weight(<SelfWeightOf<T>>::create_collection())]
 	fn create_nonfungible_collection(
 		&self,
@@ -89,9 +92,8 @@
 			..Default::default()
 		};
 
-		let collection_id =
-			<pallet_nonfungible::Pallet<T>>::init_collection(caller.as_sub().clone(), data)
-				.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
+		let collection_id = <pallet_nonfungible::Pallet<T>>::init_collection(caller.clone(), data)
+			.map_err(pallet_evm_coder_substrate::dispatch_to_evm::<T>)?;
 
 		let address = pallet_common::eth::collection_id_to_address(collection_id);
 		Ok(address)
@@ -107,8 +109,8 @@
 	}
 }
 
-pub struct CollectionHelperOnMethodCall<T: Config>(PhantomData<*const T>);
-impl<T: Config + pallet_nonfungible::Config> OnMethodCall<T> for CollectionHelperOnMethodCall<T> {
+pub struct CollectionHelpersOnMethodCall<T: Config>(PhantomData<*const T>);
+impl<T: Config + pallet_nonfungible::Config> OnMethodCall<T> for CollectionHelpersOnMethodCall<T> {
 	fn is_reserved(contract: &sp_core::H160) -> bool {
 		contract == &T::ContractAddress::get()
 	}
@@ -128,18 +130,18 @@
 			return None;
 		}
 
-		let helpers = EvmCollectionHelper::<T>(SubstrateRecorder::<T>::new(gas_left));
+		let helpers = EvmCollectionHelpers::<T>(SubstrateRecorder::<T>::new(gas_left));
 		pallet_evm_coder_substrate::call(*source, helpers, value, input)
 	}
 
 	fn get_code(contract: &sp_core::H160) -> Option<Vec<u8>> {
 		(contract == &T::ContractAddress::get())
-			.then(|| include_bytes!("./stubs/CollectionHelper.raw").to_vec())
+			.then(|| include_bytes!("./stubs/CollectionHelpers.raw").to_vec())
 	}
 }
 
-generate_stubgen!(collection_helper_impl, CollectionHelperCall<()>, true);
-generate_stubgen!(collection_helper_iface, CollectionHelperCall<()>, false);
+generate_stubgen!(collection_helper_impl, CollectionHelpersCall<()>, true);
+generate_stubgen!(collection_helper_iface, CollectionHelpersCall<()>, false);
 
 fn error_feild_too_long(feild: &str, bound: u32) -> Error {
 	Error::Revert(format!("{} is too long. Max length is {}.", feild, bound))

--- a/pallets/unique/src/lib.rs
+++ b/pallets/unique/src/lib.rs
@@ -30,10 +30,9 @@
 	ensure,
 	weights::{Weight},
 	transactional,
-	pallet_prelude::{DispatchResultWithPostInfo, ConstU32, Get},
+	pallet_prelude::{DispatchResultWithPostInfo, ConstU32},
 	BoundedVec,
 };
-use sp_core::H160;
 use scale_info::TypeInfo;
 use frame_system::{self as system, ensure_signed};
 use sp_runtime::{sp_std::prelude::Vec};
@@ -75,7 +74,6 @@
 	/// Weight information for extrinsics in this pallet.
 	type WeightInfo: WeightInfo;
 	type CommonWeightInfo: CommonWeightInfo<Self::CrossAccountId>;
-	type ContractAddress: Get<H160>;
 }
 
 decl_event! {
@@ -287,7 +285,7 @@
 
 			// =========
 
-			T::CollectionDispatch::create(sender, data)?;
+			T::CollectionDispatch::create(T::CrossAccountId::from_sub(sender), data)?;
 
 			Ok(())
 		}

--- a/runtime/common/src/dispatch.rs
+++ b/runtime/common/src/dispatch.rs
@@ -30,7 +30,10 @@
 		+ pallet_nonfungible::Config
 		+ pallet_refungible::Config,
 {
-	fn create(sender: T::AccountId, data: CreateCollectionData<T::AccountId>) -> DispatchResult {
+	fn create(
+		sender: T::CrossAccountId,
+		data: CreateCollectionData<T::AccountId>,
+	) -> DispatchResult {
 		let _id = match data.mode {
 			CollectionMode::NFT => <PalletNonfungible<T>>::init_collection(sender, data)?,
 			CollectionMode::Fungible(decimal_points) => {

--- a/runtime/opal/src/lib.rs
+++ b/runtime/opal/src/lib.rs
@@ -306,7 +306,7 @@
 		pallet_evm_migration::OnMethodCall<Self>,
 		pallet_evm_contract_helpers::HelpersOnMethodCall<Self>,
 		CollectionDispatchT<Self>,
-		pallet_unique::eth::CollectionHelperOnMethodCall<Self>,
+		pallet_unique::eth::CollectionHelpersOnMethodCall<Self>,
 	);
 	type OnCreate = pallet_evm_contract_helpers::HelpersOnCreate<Self>;
 	type ChainId = ChainId;
@@ -821,9 +821,7 @@
 	XcmpQueue,
 );
 
-impl pallet_evm_coder_substrate::Config for Runtime {
-	type GasWeightMapping = FixedGasWeightMapping;
-}
+impl pallet_evm_coder_substrate::Config for Runtime {}
 
 impl pallet_xcm::Config for Runtime {
 	type Event = Event;
@@ -885,6 +883,7 @@
 
 	type EvmTokenAddressMapping = EvmTokenAddressMapping;
 	type CrossTokenAddressMapping = CrossTokenAddressMapping<Self::AccountId>;
+	type ContractAddress = EvmCollectionHelpersAddress;
 }
 
 impl pallet_structure::Config for Runtime {
@@ -917,7 +916,6 @@
 	type Event = Event;
 	type WeightInfo = pallet_unique::weights::SubstrateWeight<Self>;
 	type CommonWeightInfo = CommonWeights<Self>;
-	type ContractAddress = EvmCollectionHelperAddress;
 }
 
 parameter_types! {
@@ -980,7 +978,7 @@
 	]);
 
 	// 0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f
-	pub const EvmCollectionHelperAddress: H160 = H160([
+	pub const EvmCollectionHelpersAddress: H160 = H160([
 		0x6c, 0x4e, 0x9f, 0xe1, 0xae, 0x37, 0xa4, 0x1e, 0x93, 0xce, 0xe4, 0x29, 0xe8, 0xe1, 0x88, 0x1a, 0xbd, 0xcb, 0xb5, 0x4f,
 	]);
 }

--- a/runtime/quartz/src/lib.rs
+++ b/runtime/quartz/src/lib.rs
@@ -285,7 +285,7 @@
 		pallet_evm_migration::OnMethodCall<Self>,
 		pallet_evm_contract_helpers::HelpersOnMethodCall<Self>,
 		CollectionDispatchT<Self>,
-		pallet_unique::eth::CollectionHelperOnMethodCall<Self>,
+		pallet_unique::eth::CollectionHelpersOnMethodCall<Self>,
 	);
 	type OnCreate = pallet_evm_contract_helpers::HelpersOnCreate<Self>;
 	type ChainId = ChainId;
@@ -800,9 +800,7 @@
 	XcmpQueue,
 );
 
-impl pallet_evm_coder_substrate::Config for Runtime {
-	type GasWeightMapping = FixedGasWeightMapping;
-}
+impl pallet_evm_coder_substrate::Config for Runtime {}
 
 impl pallet_xcm::Config for Runtime {
 	type Event = Event;
@@ -864,6 +862,7 @@
 
 	type EvmTokenAddressMapping = EvmTokenAddressMapping;
 	type CrossTokenAddressMapping = CrossTokenAddressMapping<Self::AccountId>;
+	type ContractAddress = EvmCollectionHelpersAddress;
 }
 
 impl pallet_structure::Config for Runtime {
@@ -900,7 +899,6 @@
 	type Event = Event;
 	type WeightInfo = pallet_unique::weights::SubstrateWeight<Self>;
 	type CommonWeightInfo = CommonWeights<Self>;
-	type ContractAddress = EvmCollectionHelperAddress;
 }
 
 parameter_types! {
@@ -963,7 +961,7 @@
 	]);
 		
 	// 0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f
-	pub const EvmCollectionHelperAddress: H160 = H160([
+	pub const EvmCollectionHelpersAddress: H160 = H160([
 		0x6c, 0x4e, 0x9f, 0xe1, 0xae, 0x37, 0xa4, 0x1e, 0x93, 0xce, 0xe4, 0x29, 0xe8, 0xe1, 0x88, 0x1a, 0xbd, 0xcb, 0xb5, 0x4f,
 	]);
 }

--- a/runtime/unique/src/lib.rs
+++ b/runtime/unique/src/lib.rs
@@ -290,7 +290,7 @@
 		pallet_evm_migration::OnMethodCall<Self>,
 		pallet_evm_contract_helpers::HelpersOnMethodCall<Self>,
 		CollectionDispatchT<Self>,
-		pallet_unique::eth::CollectionHelperOnMethodCall<Self>,
+		pallet_unique::eth::CollectionHelpersOnMethodCall<Self>,
 	);
 	type OnCreate = pallet_evm_contract_helpers::HelpersOnCreate<Self>;
 	type ChainId = ChainId;
@@ -805,9 +805,7 @@
 	XcmpQueue,
 );
 
-impl pallet_evm_coder_substrate::Config for Runtime {
-	type GasWeightMapping = FixedGasWeightMapping;
-}
+impl pallet_evm_coder_substrate::Config for Runtime {}
 
 impl pallet_xcm::Config for Runtime {
 	type Event = Event;
@@ -869,6 +867,7 @@
 
 	type EvmTokenAddressMapping = EvmTokenAddressMapping;
 	type CrossTokenAddressMapping = CrossTokenAddressMapping<Self::AccountId>;
+	type ContractAddress = EvmCollectionHelpersAddress;
 }
 
 impl pallet_structure::Config for Runtime {
@@ -905,7 +904,6 @@
 	type Event = Event;
 	type WeightInfo = pallet_unique::weights::SubstrateWeight<Self>;
 	type CommonWeightInfo = CommonWeights<Self>;
-	type ContractAddress = EvmCollectionHelperAddress;
 }
 
 parameter_types! {
@@ -968,7 +966,7 @@
 	]);
 		
 	// 0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f
-	pub const EvmCollectionHelperAddress: H160 = H160([
+	pub const EvmCollectionHelpersAddress: H160 = H160([
 		0x6c, 0x4e, 0x9f, 0xe1, 0xae, 0x37, 0xa4, 0x1e, 0x93, 0xce, 0xe4, 0x29, 0xe8, 0xe1, 0x88, 0x1a, 0xbd, 0xcb, 0xb5, 0x4f,
 	]);
 }

--- a/tests/src/eth/api/UniqueFungible.sol
+++ b/tests/src/eth/api/UniqueFungible.sol
@@ -65,7 +65,7 @@
 		returns (uint256);
 }
 
-// Selector: f5652829
+// Selector: c894dc35
 interface Collection is Dummy, ERC165 {
 	// Selector: setCollectionProperty(string,bytes) 2f073f66
 	function setCollectionProperty(string memory key, bytes memory value)
@@ -88,8 +88,11 @@
 	// Selector: ethConfirmSponsorship() a8580d1a
 	function ethConfirmSponsorship() external;
 
-	// Selector: setLimit(string,string) bf4d2014
-	function setLimit(string memory limit, string memory value) external;
+	// Selector: setLimit(string,uint32) 68db30ca
+	function setLimit(string memory limit, uint32 value) external;
+
+	// Selector: setLimit(string,bool) ea67e4c2
+	function setLimit(string memory limit, bool value) external;
 
 	// Selector: contractAddress() f6b4dfb4
 	function contractAddress() external view returns (address);

--- a/tests/src/eth/api/UniqueNFT.sol
+++ b/tests/src/eth/api/UniqueNFT.sol
@@ -191,29 +191,7 @@
 	function totalSupply() external view returns (uint256);
 }
 
-// Selector: d74d154f
-interface ERC721UniqueExtensions is Dummy, ERC165 {
-	// Selector: transfer(address,uint256) a9059cbb
-	function transfer(address to, uint256 tokenId) external;
-
-	// Selector: burnFrom(address,uint256) 79cc6790
-	function burnFrom(address from, uint256 tokenId) external;
-
-	// Selector: nextTokenId() 75794a3c
-	function nextTokenId() external view returns (uint256);
-
-	// Selector: mintBulk(address,uint256[]) 44a9945e
-	function mintBulk(address to, uint256[] memory tokenIds)
-		external
-		returns (bool);
-
-	// Selector: mintBulkWithTokenURI(address,(uint256,string)[]) 36543006
-	function mintBulkWithTokenURI(address to, Tuple0[] memory tokens)
-		external
-		returns (bool);
-}
-
-// Selector: f5652829
+// Selector: c894dc35
 interface Collection is Dummy, ERC165 {
 	// Selector: setCollectionProperty(string,bytes) 2f073f66
 	function setCollectionProperty(string memory key, bytes memory value)
@@ -236,13 +214,38 @@
 	// Selector: ethConfirmSponsorship() a8580d1a
 	function ethConfirmSponsorship() external;
 
-	// Selector: setLimit(string,string) bf4d2014
-	function setLimit(string memory limit, string memory value) external;
+	// Selector: setLimit(string,uint32) 68db30ca
+	function setLimit(string memory limit, uint32 value) external;
+
+	// Selector: setLimit(string,bool) ea67e4c2
+	function setLimit(string memory limit, bool value) external;
 
 	// Selector: contractAddress() f6b4dfb4
 	function contractAddress() external view returns (address);
 }
 
+// Selector: d74d154f
+interface ERC721UniqueExtensions is Dummy, ERC165 {
+	// Selector: transfer(address,uint256) a9059cbb
+	function transfer(address to, uint256 tokenId) external;
+
+	// Selector: burnFrom(address,uint256) 79cc6790
+	function burnFrom(address from, uint256 tokenId) external;
+
+	// Selector: nextTokenId() 75794a3c
+	function nextTokenId() external view returns (uint256);
+
+	// Selector: mintBulk(address,uint256[]) 44a9945e
+	function mintBulk(address to, uint256[] memory tokenIds)
+		external
+		returns (bool);
+
+	// Selector: mintBulkWithTokenURI(address,(uint256,string)[]) 36543006
+	function mintBulkWithTokenURI(address to, Tuple0[] memory tokens)
+		external
+		returns (bool);
+}
+
 interface UniqueNFT is
 	Dummy,
 	ERC165,

--- a/tests/src/eth/contractSponsoring.test.ts
+++ b/tests/src/eth/contractSponsoring.test.ts
@@ -29,7 +29,7 @@
   normalizeEvents,
   subToEth,
   executeEthTxOnSub,
-  evmCollectionHelper,
+  evmCollectionHelpers,
   getCollectionAddressFromResult,
   evmCollection,
 } from './util/helpers';
@@ -224,8 +224,8 @@
   //TODO: CORE-302 add eth methods
   itWeb3.skip('Sponsoring evm address from substrate collection', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const collectionHelper = evmCollectionHelper(web3, owner);
-    let result = await collectionHelper.methods.create721Collection('Sponsor collection', '1', '1').send();
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
+    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send();
     const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
     const sponsor = await createEthAccountWithBalance(api, web3);
     const collectionEvm = evmCollection(web3, owner, collectionIdAddress);

--- a/tests/src/eth/createCollection.test.ts
+++ b/tests/src/eth/createCollection.test.ts
@@ -18,7 +18,7 @@
 import {expect} from 'chai';
 import {getCreatedCollectionCount, getDetailedCollectionInfo} from '../util/helpers';
 import {
-  evmCollectionHelper,
+  evmCollectionHelpers,
   collectionIdToAddress,
   createEthAccount,
   createEthAccountWithBalance,
@@ -30,14 +30,14 @@
 describe('Create collection from EVM', () => {
   itWeb3('Create collection', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const helper = evmCollectionHelper(web3, owner);
+    const helper = evmCollectionHelpers(web3, owner);
     const collectionName = 'CollectionEVM';
     const description = 'Some description';
     const tokenPrefix = 'token prefix';
   
     const collectionCountBefore = await getCreatedCollectionCount(api);
     const result = await helper.methods
-      .create721Collection(collectionName, description, tokenPrefix)
+      .createNonfungibleCollection(collectionName, description, tokenPrefix)
       .send();
     const collectionCountAfter = await getCreatedCollectionCount(api);
   
@@ -51,27 +51,27 @@
 
   itWeb3('Check collection address exist', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const collectionHelper = evmCollectionHelper(web3, owner);
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
   
     const expectedCollectionId = await getCreatedCollectionCount(api) + 1;
     const expectedCollectionAddress = collectionIdToAddress(expectedCollectionId);
-    expect(await collectionHelper.methods
+    expect(await collectionHelpers.methods
       .isCollectionExist(expectedCollectionAddress)
       .call()).to.be.false;
 
-    await collectionHelper.methods
-      .create721Collection('A', 'A', 'A')
+    await collectionHelpers.methods
+      .createNonfungibleCollection('A', 'A', 'A')
       .send();
     
-    expect(await collectionHelper.methods
+    expect(await collectionHelpers.methods
       .isCollectionExist(expectedCollectionAddress)
       .call()).to.be.true;
   });
   
   itWeb3('Set sponsorship', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const collectionHelper = evmCollectionHelper(web3, owner);
-    let result = await collectionHelper.methods.create721Collection('Sponsor collection', '1', '1').send();
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
+    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send();
     const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
     const sponsor = await createEthAccountWithBalance(api, web3);
     const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
@@ -89,8 +89,8 @@
 
   itWeb3('Set limits', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const collectionHelper = evmCollectionHelper(web3, owner);
-    const result = await collectionHelper.methods.create721Collection('Const collection', '5', '5').send();
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
+    const result = await collectionHelpers.methods.createNonfungibleCollection('Const collection', '5', '5').send();
     const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
     const limits = {
       accountTokenOwnershipLimit: 1000,
@@ -105,15 +105,15 @@
     };
 
     const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
-    await collectionEvm.methods.setLimit('accountTokenOwnershipLimit', limits.accountTokenOwnershipLimit.toString()).send();
-    await collectionEvm.methods.setLimit('sponsoredDataSize', limits.sponsoredDataSize.toString()).send();
-    await collectionEvm.methods.setLimit('sponsoredDataRateLimit', limits.sponsoredDataRateLimit.toString()).send();
-    await collectionEvm.methods.setLimit('tokenLimit', limits.tokenLimit.toString()).send();
-    await collectionEvm.methods.setLimit('sponsorTransferTimeout', limits.sponsorTransferTimeout.toString()).send();
-    await collectionEvm.methods.setLimit('sponsorApproveTimeout', limits.sponsorApproveTimeout.toString()).send();
-    await collectionEvm.methods.setLimit('ownerCanTransfer', limits.ownerCanTransfer.toString()).send();
-    await collectionEvm.methods.setLimit('ownerCanDestroy', limits.ownerCanDestroy.toString()).send();
-    await collectionEvm.methods.setLimit('transfersEnabled', limits.transfersEnabled.toString()).send();
+    await collectionEvm.methods['setLimit(string,uint32)']('accountTokenOwnershipLimit', limits.accountTokenOwnershipLimit).send();
+    await collectionEvm.methods['setLimit(string,uint32)']('sponsoredDataSize', limits.sponsoredDataSize).send();
+    await collectionEvm.methods['setLimit(string,uint32)']('sponsoredDataRateLimit', limits.sponsoredDataRateLimit).send();
+    await collectionEvm.methods['setLimit(string,uint32)']('tokenLimit', limits.tokenLimit).send();
+    await collectionEvm.methods['setLimit(string,uint32)']('sponsorTransferTimeout', limits.sponsorTransferTimeout).send();
+    await collectionEvm.methods['setLimit(string,uint32)']('sponsorApproveTimeout', limits.sponsorApproveTimeout).send();
+    await collectionEvm.methods['setLimit(string,bool)']('ownerCanTransfer', limits.ownerCanTransfer).send();
+    await collectionEvm.methods['setLimit(string,bool)']('ownerCanDestroy', limits.ownerCanDestroy).send();
+    await collectionEvm.methods['setLimit(string,bool)']('transfersEnabled', limits.transfersEnabled).send();
     
     const collectionSub = (await getDetailedCollectionInfo(api, collectionId))!;
     expect(collectionSub.limits.accountTokenOwnershipLimit.unwrap().toNumber()).to.be.eq(limits.accountTokenOwnershipLimit);
@@ -130,14 +130,14 @@
   itWeb3('Collection address exist', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
     const collectionAddressForNonexistentCollection = '0x17C4E6453CC49AAAAEACA894E6D9683E00112233';
-    const collectionHelper = evmCollectionHelper(web3, owner);
-    expect(await collectionHelper.methods
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
+    expect(await collectionHelpers.methods
       .isCollectionExist(collectionAddressForNonexistentCollection).call())
       .to.be.false;
     
-    const result = await collectionHelper.methods.create721Collection('Collection address exist', '7', '7').send();
+    const result = await collectionHelpers.methods.createNonfungibleCollection('Collection address exist', '7', '7').send();
     const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
-    expect(await collectionHelper.methods
+    expect(await collectionHelpers.methods
       .isCollectionExist(collectionIdAddress).call())
       .to.be.true;
   });
@@ -146,7 +146,7 @@
 describe('(!negative tests!) Create collection from EVM', () => {
   itWeb3('(!negative test!) Create collection (bad lengths)', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const helper = evmCollectionHelper(web3, owner);
+    const helper = evmCollectionHelpers(web3, owner);
     {
       const MAX_NAME_LENGHT = 64;
       const collectionName = 'A'.repeat(MAX_NAME_LENGHT + 1);
@@ -154,7 +154,7 @@
       const tokenPrefix = 'A';
     
       await expect(helper.methods
-        .create721Collection(collectionName, description, tokenPrefix)
+        .createNonfungibleCollection(collectionName, description, tokenPrefix)
         .call()).to.be.rejectedWith('name is too long. Max length is ' + MAX_NAME_LENGHT);
       
     }
@@ -164,7 +164,7 @@
       const description = 'A'.repeat(MAX_DESCRIPTION_LENGHT + 1);
       const tokenPrefix = 'A';
       await expect(helper.methods
-        .create721Collection(collectionName, description, tokenPrefix)
+        .createNonfungibleCollection(collectionName, description, tokenPrefix)
         .call()).to.be.rejectedWith('description is too long. Max length is ' + MAX_DESCRIPTION_LENGHT);
     }
     {  
@@ -173,28 +173,28 @@
       const description = 'A';
       const tokenPrefix = 'A'.repeat(MAX_TOKEN_PREFIX_LENGHT + 1);
       await expect(helper.methods
-        .create721Collection(collectionName, description, tokenPrefix)
+        .createNonfungibleCollection(collectionName, description, tokenPrefix)
         .call()).to.be.rejectedWith('token_prefix is too long. Max length is ' + MAX_TOKEN_PREFIX_LENGHT);
     }
   });
   
   itWeb3('(!negative test!) Create collection (no funds)', async ({web3}) => {
     const owner = await createEthAccount(web3);
-    const helper = evmCollectionHelper(web3, owner);
+    const helper = evmCollectionHelpers(web3, owner);
     const collectionName = 'A';
     const description = 'A';
     const tokenPrefix = 'A';
     
     await expect(helper.methods
-      .create721Collection(collectionName, description, tokenPrefix)
+      .createNonfungibleCollection(collectionName, description, tokenPrefix)
       .call()).to.be.rejectedWith('NotSufficientFounds');
   });
 
   itWeb3('(!negative test!) Check owner', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
     const notOwner = await createEthAccount(web3);
-    const collectionHelper = evmCollectionHelper(web3, owner);
-    const result = await collectionHelper.methods.create721Collection('A', 'A', 'A').send();
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
+    const result = await collectionHelpers.methods.createNonfungibleCollection('A', 'A', 'A').send();
     const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
     const contractEvmFromNotOwner = evmCollection(web3, notOwner, collectionIdAddress);
     const EXPECTED_ERROR = 'NoPermission';
@@ -218,18 +218,12 @@
 
   itWeb3('(!negative test!) Set limits', async ({api, web3}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const collectionHelper = evmCollectionHelper(web3, owner);
-    const result = await collectionHelper.methods.create721Collection('Schema collection', 'A', 'A').send();
+    const collectionHelpers = evmCollectionHelpers(web3, owner);
+    const result = await collectionHelpers.methods.createNonfungibleCollection('Schema collection', 'A', 'A').send();
     const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
     const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
     await expect(collectionEvm.methods
       .setLimit('badLimit', 'true')
-      .call()).to.be.rejectedWith('Unknown limit "badLimit"');
-    await expect(collectionEvm.methods
-      .setLimit('sponsoredDataSize', 'badValue')
-      .call()).to.be.rejectedWith('Int value "badValue" parse error:');
-    await expect(collectionEvm.methods
-      .setLimit('ownerCanTransfer', 'badValue')
-      .call()).to.be.rejectedWith('Bool value "badValue" parse error:');
+      .call()).to.be.rejectedWith('Unknown boolean limit "badLimit"');
   });
 });
\ No newline at end of file

--- a/tests/src/eth/fungibleAbi.json
+++ b/tests/src/eth/fungibleAbi.json
@@ -152,7 +152,17 @@
   {
     "inputs": [
       { "internalType": "string", "name": "limit", "type": "string" },
-      { "internalType": "string", "name": "value", "type": "string" }
+      { "internalType": "uint32", "name": "value", "type": "uint32" }
+    ],
+    "name": "setLimit",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "string", "name": "limit", "type": "string" },
+      { "internalType": "bool", "name": "value", "type": "bool" }
     ],
     "name": "setLimit",
     "outputs": [],

--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -16,7 +16,7 @@
 
 import privateKey from '../substrate/privateKey';
 import {approveExpectSuccess, burnItemExpectSuccess, createCollectionExpectSuccess, createItemExpectSuccess, transferExpectSuccess, transferFromExpectSuccess, UNIQUE} from '../util/helpers';
-import {collectionIdToAddress, createEthAccount, createEthAccountWithBalance, evmCollection, evmCollectionHelper, GAS_ARGS, getCollectionAddressFromResult, itWeb3, normalizeEvents, recordEthFee, recordEvents, subToEth, transferBalanceToEth} from './util/helpers';
+import {collectionIdToAddress, createEthAccount, createEthAccountWithBalance, evmCollection, evmCollectionHelpers, GAS_ARGS, getCollectionAddressFromResult, itWeb3, normalizeEvents, recordEthFee, recordEvents, subToEth, transferBalanceToEth} from './util/helpers';
 import nonFungibleAbi from './nonFungibleAbi.json';
 import {expect} from 'chai';
 import {submitTransactionAsync} from '../substrate/substrate-api';
@@ -76,8 +76,8 @@
 describe('NFT: Plain calls', () => {
   itWeb3('Can perform mint()', async ({web3, api}) => {
     const owner = await createEthAccountWithBalance(api, web3);
-    const helper = evmCollectionHelper(web3, owner);
-    let result = await helper.methods.create721Collection('Mint collection', '6', '6').send();
+    const helper = evmCollectionHelpers(web3, owner);
+    let result = await helper.methods.createNonfungibleCollection('Mint collection', '6', '6').send();
     const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
     const receiver = createEthAccount(web3);
     const contract = evmCollection(web3, owner, collectionIdAddress);

--- a/tests/src/eth/nonFungibleAbi.json
+++ b/tests/src/eth/nonFungibleAbi.json
@@ -326,7 +326,17 @@
   {
     "inputs": [
       { "internalType": "string", "name": "limit", "type": "string" },
-      { "internalType": "string", "name": "value", "type": "string" }
+      { "internalType": "uint32", "name": "value", "type": "uint32" }
+    ],
+    "name": "setLimit",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "string", "name": "limit", "type": "string" },
+      { "internalType": "bool", "name": "value", "type": "bool" }
     ],
     "name": "setLimit",
     "outputs": [],

--- a/tests/src/eth/util/helpers.ts
+++ b/tests/src/eth/util/helpers.ts
@@ -29,7 +29,7 @@
 import privateKey from '../../substrate/privateKey';
 import contractHelpersAbi from './contractHelpersAbi.json';
 import nonFungibleAbi from '../nonFungibleAbi.json';
-import collectionHelperAbi from '../collectionHelperAbi.json';
+import collectionHelpersAbi from '../collectionHelpersAbi.json';
 import getBalance from '../../substrate/get-balance';
 import waitNewBlocks from '../../substrate/wait-new-blocks';
 
@@ -69,7 +69,7 @@
 }
 
 export async function getCollectionAddressFromResult(api: ApiPromise, result: any) {
-  const collectionIdAddress = normalizeAddress(result.events[0].raw.topics[2]);
+  const collectionIdAddress = normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
   const collectionId = collectionIdFromAddress(collectionIdAddress);  
   const collection = (await getDetailedCollectionInfo(api, collectionId))!;
   return {collectionIdAddress, collectionId, collection};
@@ -297,8 +297,8 @@
  * @param caller - eth address
  * @returns 
  */
-export function evmCollectionHelper(web3: Web3, caller: string) {
-  return new web3.eth.Contract(collectionHelperAbi as any, '0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f', {from: caller, ...GAS_ARGS});
+export function evmCollectionHelpers(web3: Web3, caller: string) {
+  return new web3.eth.Contract(collectionHelpersAbi as any, '0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f', {from: caller, ...GAS_ARGS});
 }
 
 /**