[pallet-revive] Add Ethereum JSON-RPC server

Cargo.toml

@@ -402,6 +402,7 @@ members = [
 	"substrate/frame/revive/fixtures",
 	"substrate/frame/revive/mock-network",
 	"substrate/frame/revive/proc-macro",
+	"substrate/frame/revive/rpc",
 	"substrate/frame/revive/uapi",
 	"substrate/frame/root-offences",
 	"substrate/frame/root-testing",
@@ -967,6 +968,7 @@ pallet-recovery = { path = "substrate/frame/recovery", default-features = false
 pallet-referenda = { path = "substrate/frame/referenda", default-features = false }
 pallet-remark = { default-features = false, path = "substrate/frame/remark" }
 pallet-revive = { path = "substrate/frame/revive", default-features = false }
+pallet-revive-eth-rpc = { path = "substrate/frame/revive/rpc", default-features = false }
 pallet-revive-fixtures = { path = "substrate/frame/revive/fixtures", default-features = false }
 pallet-revive-mock-network = { default-features = false, path = "substrate/frame/revive/mock-network" }
 pallet-revive-proc-macro = { path = "substrate/frame/revive/proc-macro", default-features = false }

cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs

@@ -58,7 +58,7 @@ use frame_system::{
 };
 use pallet_asset_conversion_tx_payment::SwapAssetAdapter;
 use pallet_nfts::{DestroyWitness, PalletFeatures};
-use pallet_revive::evm::runtime::EthExtra;
+use pallet_revive::{evm::runtime::EthExtra, AddressMapper};
 use parachains_common::{
 	impls::DealWithFees, message_queue::*, AccountId, AssetIdForTrustBackedAssets, AuraId, Balance,
 	BlockNumber, CollectionId, Hash, Header, ItemId, Nonce, Signature, AVERAGE_ON_INITIALIZE_RATIO,
@@ -2069,8 +2069,17 @@ impl_runtime_apis! {
 		}
 	}
 
-	impl pallet_revive::ReviveApi<Block, AccountId, Balance, BlockNumber, EventRecord> for Runtime
+	impl pallet_revive::ReviveApi<Block, AccountId, Balance, Nonce, BlockNumber, EventRecord> for Runtime
 	{
+		fn balance(address: H160) -> Balance {
+			let account = <Runtime as pallet_revive::Config>::AddressMapper::to_account_id(&address);
+			Balances::usable_balance(account)
+		}
+
+		fn nonce(address: H160) -> Nonce {
+			let account = <Runtime as pallet_revive::Config>::AddressMapper::to_account_id(&address);
+			System::account_nonce(account)
+		}
 		fn eth_transact(
 			from: H160,
 			dest: Option<H160>,

prdoc/pr_6147.prdoc

@@ -0,0 +1,17 @@
+title: "[pallet-revive] Ethereum JSON-RPC"
+
+doc:
+  - audience: Runtime Dev
+    description: |
+      Add a new Ethereum JSON-RPC server that can be used a substrate chain configured with pallet-revive
+crates:
+  - name: pallet-revive
+    bump: patch
+  - name: asset-hub-westend-runtime
+    bump: patch
+  - name: pallet-revive-eth-rpc
+    bump: patch
+  - name: pallet-revive-fixtures
+    bump: patch
+  - name: polkadot-sdk
+    bump: patch

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

@@ -76,7 +76,7 @@ use pallet_identity::legacy::IdentityInfo;
 use pallet_im_online::sr25519::AuthorityId as ImOnlineId;
 use pallet_nfts::PalletFeatures;
 use pallet_nis::WithMaximumOf;
-use pallet_revive::evm::runtime::EthExtra;
+use pallet_revive::{evm::runtime::EthExtra, AddressMapper};
 use pallet_session::historical as pallet_session_historical;
 // Can't use `FungibleAdapter` here until Treasury pallet migrates to fungibles
 // <https://github.com/paritytech/polkadot-sdk/issues/226>
@@ -3157,8 +3157,18 @@ impl_runtime_apis! {
 		}
 	}
 
-	impl pallet_revive::ReviveApi<Block, AccountId, Balance, BlockNumber, EventRecord> for Runtime
+	impl pallet_revive::ReviveApi<Block, AccountId, Balance, Nonce, BlockNumber, EventRecord> for Runtime
 	{
+		fn balance(address: H160) -> Balance {
+			let account = <Runtime as pallet_revive::Config>::AddressMapper::to_account_id(&address);
+			Balances::usable_balance(account)
+		}
+
+		fn nonce(address: H160) -> Nonce {
+			let account = <Runtime as pallet_revive::Config>::AddressMapper::to_account_id(&address);
+			System::account_nonce(account)
+		}
+
 		fn eth_transact(
 			from: H160,
 			dest: Option<H160>,