add async_rpc method

client/src/lib.rs

@@ -10,6 +10,7 @@ use anchor_lang::{AccountDeserialize, Discriminator, InstructionData, ToAccountM
 use regex::Regex;
 use solana_account_decoder::UiAccountEncoding;
 use solana_client::client_error::ClientError as SolanaClientError;
+use solana_client::nonblocking::rpc_client::RpcClient as AsyncRpcClient;
 use solana_client::pubsub_client::{PubsubClient, PubsubClientError, PubsubClientSubscription};
 use solana_client::rpc_client::RpcClient;
 use solana_client::rpc_config::{
@@ -187,6 +188,13 @@ impl Program {
         )
     }
 
+    pub fn async_rpc(&self) -> AsyncRpcClient {
+        AsyncRpcClient::new_with_commitment(
+            self.cfg.cluster.url().to_string(),
+            self.cfg.options.unwrap_or_default(),
+        )
+    }
+
     pub fn id(&self) -> Pubkey {
         self.program_id
     }