Trie State migration rpc (#5180)

* update

* unsafe

* switch remote

* update rpc usage

* update cargo.lock

* lock from master

* updated lock

polkadot/Cargo.lock

@@ -7275,6 +7275,7 @@ dependencies = [
  "sp-keystore",
  "sp-runtime",
  "substrate-frame-rpc-system",
+ "substrate-state-trie-migration-rpc",
 ]
 
 [[package]]
@@ -11021,6 +11022,29 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "substrate-state-trie-migration-rpc"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=master#7a09b82772b0597cdae224f4b124d660dda9e82b"
+dependencies = [
+ "jsonrpc-core",
+ "jsonrpc-core-client",
+ "jsonrpc-derive",
+ "log",
+ "parity-scale-codec",
+ "sc-client-api",
+ "sc-rpc-api",
+ "scale-info",
+ "serde",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-state-machine",
+ "sp-std",
+ "sp-trie",
+ "trie-db",
+]
+
 [[package]]
 name = "substrate-test-client"
 version = "2.0.1"

polkadot/node/service/src/lib.rs

@@ -512,6 +512,7 @@ where
 		let transaction_pool = transaction_pool.clone();
 		let select_chain = select_chain.clone();
 		let chain_spec = config.chain_spec.cloned_box();
+		let backend = backend.clone();
 
 		move |deny_unsafe,
 		      subscription_executor: polkadot_rpc::SubscriptionTaskExecutor|
@@ -541,7 +542,7 @@ where
 				},
 			};
 
-			polkadot_rpc::create_full(deps).map_err(Into::into)
+			polkadot_rpc::create_full(deps, backend.clone()).map_err(Into::into)
 		}
 	};
 

polkadot/rpc/Cargo.toml

@@ -29,3 +29,4 @@ pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrat
 sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
 beefy-gadget = { git = "https://github.com/paritytech/substrate", branch = "master" }
 beefy-gadget-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-state-trie-migration-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }

polkadot/rpc/src/lib.rs

@@ -95,6 +95,7 @@ pub struct FullDeps<C, P, SC, B> {
 /// Instantiate all RPC extensions.
 pub fn create_full<C, P, SC, B>(
 	deps: FullDeps<C, P, SC, B>,
+	backend: Arc<B>,
 ) -> Result<RpcExtension, Box<dyn std::error::Error + Send + Sync>>
 where
 	C: ProvideRuntimeApi<Block>
@@ -132,6 +133,10 @@ where
 		finality_provider,
 	} = grandpa;
 
+	io.extend_with(substrate_state_trie_migration_rpc::StateMigrationApi::to_delegate(
+		substrate_state_trie_migration_rpc::MigrationRpc::new(client.clone(), backend, deny_unsafe),
+	));
+
 	io.extend_with(SystemApi::to_delegate(FullSystem::new(client.clone(), pool, deny_unsafe)));
 	io.extend_with(TransactionPaymentApi::to_delegate(TransactionPayment::new(client.clone())));
 	io.extend_with(MmrApi::to_delegate(Mmr::new(client.clone())));