Make GRPC and WS URLs for cosmos optional

hyperspace/cosmos/src/chain.rs

@@ -96,7 +96,7 @@ where
 		Pin<Box<dyn Stream<Item = <Self as IbcProvider>::FinalityEvent> + Send + Sync>>,
 		Error,
 	> {
-		let ws_client = self.rpc_client.clone();
+		let ws_client = self.rpc_ws_client.clone().ok_or("No RPC client!".to_string())?;
 		let subscription = ws_client
 			.subscribe(Query::from(EventType::NewBlock))
 			.await
@@ -148,7 +148,7 @@ where
 		// .and_eq("update_client.header", hex::encode(&update.header.unwrap_or_default()))
 		use tendermint::abci::Event as AbciEvent;
 
-		let mut client = ServiceClient::connect(self.grpc_url.to_string())
+		let mut client = ServiceClient::connect(self.grpc_url().to_string())
 			.await
 			.map_err(|e| Error::from(e.to_string()))?;
 		let mut resp = client
@@ -261,11 +261,12 @@ where
 	}
 
 	async fn reconnect(&mut self) -> anyhow::Result<()> {
-		let (rpc_client, ws_driver) = WebSocketClient::new(self.websocket_url.clone())
+		// TODO: don't reconnect if the url is not presented
+		let (rpc_client, ws_driver) = WebSocketClient::new(self.websocket_url().clone())
 			.await
 			.map_err(|e| Error::RpcError(format!("{e:?}")))?;
 		self.join_handles.lock().await.push(tokio::spawn(ws_driver.run()));
-		self.rpc_client = rpc_client;
+		self.rpc_ws_client = Some(rpc_client);
 		log::info!(target: "hyperspace_cosmos", "Reconnected to cosmos chain");
 		Ok(())
 	}

hyperspace/cosmos/src/client.rs

@@ -130,17 +130,17 @@ pub struct CosmosClient<H> {
 	/// Chain name
 	pub name: String,
 	/// Chain rpc client
-	pub rpc_client: WebSocketClient,
+	pub rpc_ws_client: Option<WebSocketClient>,
 	/// Chain http rpc client
 	pub rpc_http_client: HttpClient,
 	/// Reusable GRPC client
-	pub grpc_client: tonic::transport::Channel,
+	pub grpc_client: Option<tonic::transport::Channel>,
 	/// Chain rpc address
 	pub rpc_url: Url,
 	/// Chain grpc address
-	pub grpc_url: Url,
+	pub grpc_url: Option<Url>,
 	/// Websocket chain ws client
-	pub websocket_url: Url,
+	pub websocket_url: Option<Url>,
 	/// Chain Id
 	pub chain_id: ChainId,
 	/// Light client id on counterparty chain
@@ -186,9 +186,9 @@ pub struct CosmosClientConfig {
 	/// rpc url for cosmos
 	pub rpc_url: Url,
 	/// grpc url for cosmos
-	pub grpc_url: Url,
+	pub grpc_url: Option<Url>,
 	/// websocket url for cosmos
-	pub websocket_url: Url,
+	pub websocket_url: Option<Url>,
 	/// Cosmos chain Id
 	pub chain_id: String,
 	/// Light client id on counterparty chain
@@ -251,17 +251,32 @@ where
 {
 	/// Initializes a [`CosmosClient`] given a [`CosmosClientConfig`]
 	pub async fn new(config: CosmosClientConfig) -> Result<Self, Error> {
-		let (rpc_client, rpc_driver) = WebSocketClient::new(config.websocket_url.clone())
-			.await
-			.map_err(|e| Error::RpcError(format!("failed to connect to Websocket {:?}", e)))?;
+		let mut rpc_client = None;
+
+		let mut join_handles = vec![];
+		if let Some(websocket_url) = &config.websocket_url {
+			let rpc_driver;
+			(rpc_client, rpc_driver) = WebSocketClient::new(websocket_url.clone())
+				.await
+				.map(|(x, y)| (Some(x), y))
+				.map_err(|e| Error::RpcError(format!("{:?}", e)))?;
+			join_handles.push(tokio::spawn(rpc_driver.run()));
+		} else {
+			log::warn!(target: "hyperspace_cosmos", "No websocket url provided for cosmos chain");
+		}
 		let rpc_http_client = HttpClient::new(config.rpc_url.clone())
-			.map_err(|e| Error::RpcError(format!("failed to connect to RPC {:?}", e)))?;
-		let ws_driver_jh = tokio::spawn(rpc_driver.run());
-		let grpc_client = tonic::transport::Endpoint::new(config.grpc_url.to_string())
-			.map_err(|e| Error::RpcError(format!("failed to create a GRPC endpoint {:?}", e)))?
-			.connect()
-			.await
-			.map_err(|e| Error::RpcError(format!("failed to connect to GRPC {:?}", e)))?;
+			.map_err(|e| Error::RpcError(format!("{:?}", e)))?;
+		let mut grpc_client = None;
+		if let Some(grpc_url) = &config.grpc_url {
+			grpc_client = tonic::transport::Endpoint::new(grpc_url.to_string())
+				.map_err(|e| Error::RpcError(format!("{:?}", e)))?
+				.connect()
+				.await
+				.map(Some)
+				.map_err(|e| Error::RpcError(format!("{:?}", e)))?;
+		} else {
+			log::warn!(target: "hyperspace_cosmos", "No grpc url provided for cosmos chain");
+		}
 
 		let chain_id = ChainId::from(config.chain_id);
 		let light_client =
@@ -279,7 +294,7 @@ where
 		Ok(Self {
 			name: config.name,
 			chain_id,
-			rpc_client,
+			rpc_ws_client: rpc_client,
 			rpc_http_client,
 			grpc_client,
 			rpc_url: config.rpc_url,
@@ -308,10 +323,26 @@ where
 				max_packets_to_process: config.common.max_packets_to_process as usize,
 				skip_tokens_list: config.skip_tokens_list.unwrap_or_default(),
 			},
-			join_handles: Arc::new(TokioMutex::new(vec![ws_driver_jh])),
+			join_handles: Arc::new(TokioMutex::new(join_handles)),
 		})
 	}
 
+	pub fn grpc_url(&self) -> Url {
+		self.grpc_url.clone().expect("grpc url is not set")
+	}
+
+	pub fn websocket_url(&self) -> Url {
+		self.websocket_url.clone().expect("rpc url is not set")
+	}
+
+	pub fn grpc_client(&self) -> &tonic::transport::Channel {
+		self.grpc_client.as_ref().expect("grpc client is not set")
+	}
+
+	pub fn rpc_ws_client(&self) -> WebSocketClient {
+		self.rpc_ws_client.as_ref().expect("rpc client is not set").clone()
+	}
+
 	pub fn client_id(&self) -> ClientId {
 		self.client_id
 			.lock()
@@ -366,16 +397,17 @@ where
 		)?;
 
 		// Simulate transaction
-		let res = simulate_tx(self.grpc_url.clone(), tx, tx_bytes.clone()).await?;
+		let res = simulate_tx(self.grpc_url(), tx, tx_bytes.clone()).await?;
 		res.result
 			.map(|r| log::debug!(target: "hyperspace_cosmos", "Simulated transaction: events: {:?}\nlogs: {}", r.events, r.log));
 
 		// Broadcast transaction
-		let hash = broadcast_tx(&self.rpc_client, tx_bytes).await?;
-		log::debug!(target: "hyperspace_cosmos", "🤝 Transaction sent with hash: {:?}", hash);
+		let client = &self.rpc_ws_client();
+		let hash = broadcast_tx(client, tx_bytes).await?;
+		log::info!(target: "hyperspace_cosmos", "🤝 Transaction sent with hash: {:?}", hash);
 
 		// wait for confirmation
-		confirm_tx(&self.rpc_client, hash).await
+		confirm_tx(client, hash).await
 	}
 
 	pub async fn fetch_light_block_with_cache(
@@ -460,7 +492,7 @@ where
 
 	/// Uses the GRPC client to retrieve the account sequence
 	pub async fn query_account(&self) -> Result<BaseAccount, Error> {
-		let mut client = QueryClient::connect(self.grpc_url.clone().to_string())
+		let mut client = QueryClient::connect(self.grpc_url().to_string())
 			.await
 			.map_err(|e| Error::from(format!("GRPC client error: {:?}", e)))?;
 

hyperspace/cosmos/src/provider.rs

@@ -211,7 +211,7 @@ where
 	// necessary height field, as `height` is removed from `Attribute` from ibc-rs v0.22.0
 	async fn ibc_events(&self) -> Pin<Box<dyn Stream<Item = IbcEvent> + Send + 'static>> {
 		// Create websocket client. Like what `EventMonitor::subscribe()` does in `hermes`
-		let ws_client = self.rpc_client.clone();
+		let ws_client = self.rpc_ws_client();
 
 		let query_all = vec![
 			Query::from(EventType::NewBlock),
@@ -466,7 +466,7 @@ where
 		// Instead, we need to pull block height via `/abci_info` and then fetch block
 		// metadata at the given height via `/blockchain` endpoint.
 		let abci_info = self
-			.rpc_client
+			.rpc_http_client
 			.abci_info()
 			.await
 			.map_err(|e| Error::RpcError(format!("{e:?}")))?;
@@ -476,7 +476,7 @@ where
 		// TODO: Replace this query with `/header`, once it's available.
 		//  https://github.com/informalsystems/tendermint-rs/pull/1101
 		let blocks = self
-			.rpc_client
+			.rpc_http_client
 			.blockchain(abci_info.last_block_height, abci_info.last_block_height)
 			.await
 			.map_err(|e| {
@@ -505,7 +505,7 @@ where
 	) -> Result<Vec<u64>, Self::Error> {
 		let mut grpc_client =
 			ibc_proto::ibc::core::channel::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(e.to_string()))?;
@@ -541,7 +541,7 @@ where
 		);
 		let mut grpc_client =
 			ibc_proto::ibc::core::channel::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(e.to_string()))?;
@@ -574,7 +574,7 @@ where
 	) -> Result<Vec<u64>, Self::Error> {
 		let mut grpc_client =
 			ibc_proto::ibc::core::channel::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(e.to_string()))?;
@@ -605,7 +605,7 @@ where
 	) -> Result<Vec<u64>, Self::Error> {
 		let mut grpc_client =
 			ibc_proto::ibc::core::channel::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(e.to_string()))?;
@@ -638,7 +638,7 @@ where
 	) -> Result<QueryChannelsResponse, Self::Error> {
 		let mut grpc_client =
 			ibc_proto::ibc::core::channel::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(format!("{e:?}")))?;
@@ -889,7 +889,7 @@ where
 	) -> Result<Vec<PrefixedCoin>, Self::Error> {
 		let denom = &asset_id;
 		let mut grpc_client = ibc_proto::cosmos::bank::v1beta1::query_client::QueryClient::connect(
-			self.grpc_url.clone().to_string(),
+			self.grpc_url().to_string(),
 		)
 		.await
 		.map_err(|e| Error::from(format!("{e:?}")))?;
@@ -956,7 +956,7 @@ where
 		let height = TmHeight::try_from(block_number)
 			.map_err(|e| Error::from(format!("Invalid block number: {e}")))?;
 		let response = self
-			.rpc_client
+			.rpc_ws_client()
 			.block(height)
 			.await
 			.map_err(|e| Error::RpcError(e.to_string()))?;
@@ -969,7 +969,7 @@ where
 			pagination: Some(PageRequest { limit: u32::MAX as _, ..Default::default() }),
 		});
 		let grpc_client = ibc_proto::ibc::core::client::v1::query_client::QueryClient::new(
-			self.grpc_client.clone(),
+			self.grpc_client().clone(),
 		);
 		let response = grpc_client
 			.clone()
@@ -998,7 +998,7 @@ where
 		});
 		let mut grpc_client =
 			ibc_proto::ibc::core::channel::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(format!("{e:?}")))?;
@@ -1025,7 +1025,7 @@ where
 	) -> Result<Vec<IdentifiedConnection>, Self::Error> {
 		let mut grpc_client =
 			ibc_proto::ibc::core::connection::v1::query_client::QueryClient::connect(
-				self.grpc_url.clone().to_string(),
+				self.grpc_url().to_string(),
 			)
 			.await
 			.map_err(|e| Error::from(format!("{e:?}")))?;
@@ -1098,7 +1098,7 @@ where
 
 		let response: Response = loop {
 			let response = self
-				.rpc_client
+				.rpc_ws_client()
 				.tx_search(
 					Query::eq("tx.hash", tx_id.hash.to_string()),
 					false,
@@ -1165,7 +1165,7 @@ where
 
 		let response: Response = loop {
 			let response = self
-				.rpc_client
+				.rpc_ws_client()
 				.tx_search(
 					Query::eq("tx.hash", tx_id.hash.to_string()),
 					false,
@@ -1233,7 +1233,7 @@ where
 
 		let response: Response = loop {
 			let response = self
-				.rpc_client
+				.rpc_ws_client()
 				.tx_search(
 					Query::eq("tx.hash", tx_id.hash.to_string()),
 					false,
@@ -1318,7 +1318,7 @@ where
 			}
 		};
 		// let resp = MsgClient::connect(
-		// 	Endpoint::try_from(self.grpc_url.to_string())
+		// 	Endpoint::try_from(self.grpc_url().to_string())
 		// 		.map_err(|e| Error::from(format!("Failed to parse grpc url: {:?}", e)))?,
 		// )
 		// .await

hyperspace/cosmos/src/test_provider.rs

@@ -37,7 +37,7 @@ where
 
 	/// Returns a stream that yields chain Block number
 	async fn subscribe_blocks(&self) -> Pin<Box<dyn Stream<Item = u64> + Send + Sync>> {
-		let ws_client = self.rpc_client.clone();
+		let ws_client = self.rpc_ws_client();
 
 		let subscription = ws_client.subscribe(Query::from(EventType::NewBlock)).await.unwrap();
 		log::info!(target: "hyperspace_cosmos", "🛰️ Subscribed to {} listening to finality notifications", self.name);

hyperspace/testsuite/tests/parachain_cosmos.rs

@@ -92,8 +92,8 @@ async fn setup_clients() -> (AnyChain, AnyChain) {
 	let mut config_b = CosmosClientConfig {
 		name: "cosmos".to_string(),
 		rpc_url: args.chain_b.clone().parse().unwrap(),
-		grpc_url: args.cosmos_grpc.clone().parse().unwrap(),
-		websocket_url: args.cosmos_ws.clone().parse().unwrap(),
+		grpc_url: Some(args.cosmos_grpc.clone().parse().unwrap()),
+		websocket_url: Some(args.cosmos_ws.clone().parse().unwrap()),
 		chain_id: "ibcgo-1".to_string(),
 		client_id: None,
 		connection_id: None,