Companion for paritytech/substrate#12764 (#1930)

* Companion for paritytech/substrate#12764

* Remove `async-trait`

* Fix trait

* update lockfile for {"substrate", "polkadot"}

Co-authored-by: parity-processbot <>

parachain-template/node/src/service.rs

@@ -22,6 +22,7 @@ use cumulus_relay_chain_interface::{RelayChainError, RelayChainInterface, RelayC
 use cumulus_relay_chain_minimal_node::build_minimal_relay_chain_node;
 
 // Substrate Imports
+use sc_consensus::ImportQueue;
 use sc_executor::NativeElseWasmExecutor;
 use sc_network::NetworkService;
 use sc_network_common::service::NetworkBlock;
@@ -196,14 +197,15 @@ async fn start_node_impl(
 	let validator = parachain_config.role.is_authority();
 	let prometheus_registry = parachain_config.prometheus_registry().cloned();
 	let transaction_pool = params.transaction_pool.clone();
-	let import_queue = cumulus_client_service::SharedImportQueue::new(params.import_queue);
+	let import_queue_service = params.import_queue.service();
+
 	let (network, system_rpc_tx, tx_handler_controller, start_network) =
 		sc_service::build_network(sc_service::BuildNetworkParams {
 			config: &parachain_config,
 			client: client.clone(),
 			transaction_pool: transaction_pool.clone(),
 			spawn_handle: task_manager.spawn_handle(),
-			import_queue: import_queue.clone(),
+			import_queue: params.import_queue,
 			block_announce_validator_builder: Some(Box::new(|_| {
 				Box::new(block_announce_validator)
 			})),
@@ -293,7 +295,7 @@ async fn start_node_impl(
 			relay_chain_interface,
 			spawner,
 			parachain_consensus,
-			import_queue,
+			import_queue: import_queue_service,
 			collator_key: collator_key.expect("Command line arguments do not allow this. qed"),
 			relay_chain_slot_duration,
 		};
@@ -307,7 +309,7 @@ async fn start_node_impl(
 			para_id: id,
 			relay_chain_interface,
 			relay_chain_slot_duration,
-			import_queue,
+			import_queue: import_queue_service,
 		};
 
 		start_full_node(params)?;