feat: pallet asset-rate (#13608)

* poc

* fix: remove AssetIdParameter

* tests: add

* docs: add pallet description

* feat: add benches

* refactor: UnknownAssetId

* fix: normalize mock cfg

* fix: benchmarks

* chore: add weights

* refactor: remove storage getter

* chore: apply suggestions from code review

* docs: add native balance to calls

* chore: apply suggestions from code review

* chore: apply ConversionFromAssetBalance

* tests: update balance mock

* chore: apply suggestions from code review

* ci: set publish to false

* docs: fix missing rustdoc

---------

Co-authored-by: parity-processbot <>

substrate/bin/node/runtime/src/lib.rs

@@ -1131,6 +1131,17 @@ impl pallet_treasury::Config for Runtime {
 	type SpendOrigin = EnsureWithSuccess<EnsureRoot<AccountId>, AccountId, MaxBalance>;
 }
 
+impl pallet_asset_rate::Config for Runtime {
+	type CreateOrigin = EnsureRoot<AccountId>;
+	type RemoveOrigin = EnsureRoot<AccountId>;
+	type UpdateOrigin = EnsureRoot<AccountId>;
+	type Balance = Balance;
+	type Currency = Balances;
+	type AssetId = u32;
+	type RuntimeEvent = RuntimeEvent;
+	type WeightInfo = pallet_asset_rate::weights::SubstrateWeight<Runtime>;
+}
+
 parameter_types! {
 	pub const BountyCuratorDeposit: Permill = Permill::from_percent(50);
 	pub const BountyValueMinimum: Balance = 5 * DOLLARS;
@@ -1765,6 +1776,7 @@ construct_runtime!(
 		TechnicalMembership: pallet_membership::<Instance1>,
 		Grandpa: pallet_grandpa,
 		Treasury: pallet_treasury,
+		AssetRate: pallet_asset_rate,
 		Contracts: pallet_contracts,
 		Sudo: pallet_sudo,
 		ImOnline: pallet_im_online,
@@ -1922,6 +1934,7 @@ mod benches {
 		[pallet_tips, Tips]
 		[pallet_transaction_storage, TransactionStorage]
 		[pallet_treasury, Treasury]
+		[pallet_asset_rate, AssetRate]
 		[pallet_uniques, Uniques]
 		[pallet_nfts, Nfts]
 		[pallet_utility, Utility]