feat(client): Add an Async Solana Client

README.md

@@ -62,6 +62,8 @@ The SDK also comes equipped with `HeliusFactory`, a factory for creating instanc
 ### Embedded Solana Client
 The `Helius` client has an embedded [Solana client](https://docs.rs/solana-client/latest/solana_client/rpc_client/struct.RpcClient.html) that can be accessed via `helius.connection().request_name()` where `request_name()` is a given [RPC method](https://docs.rs/solana-client/latest/solana_client/rpc_client/struct.RpcClient.html#implementations). A full list of all Solana RPC HTTP methods can be found [here](https://solana.com/docs/rpc/http).
 
+Note that this Solana client is synchronous by default. An asynchronous client can be created using the `new_with_async_solana` in place of the `new` method. The asynchronous client can be accessed via `helius.async_connection()?.some_async_method().await?` where `some_async_method()` is a given async RPC method.
+
 ### Examples
 More examples of how to use the SDK can be found in the [`examples`](https://github.com/helius-labs/helius-rust-sdk/tree/dev/examples) directory.
 

examples/get_latest_blockhash_async.rs

@@ -0,0 +1,18 @@
+use helius::error::Result;
+use helius::types::*;
+use helius::Helius;
+
+use solana_sdk::hash::Hash;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let api_key: &str = "your_api_key";
+    let cluster: Cluster = Cluster::MainnetBeta;
+
+    let helius: Helius = Helius::new_with_async_solana(api_key, cluster).expect("Failed to create a Helius client");
+
+    let latest_blockhash: Hash = helius.async_connection()?.get_latest_blockhash().await?;
+    println!("{:?}", latest_blockhash);
+
+    Ok(())
+}

src/client.rs

@@ -1,11 +1,12 @@
-use std::sync::Arc;
+use std::{ops::Deref, sync::Arc};
 
 use crate::config::Config;
-use crate::error::Result;
+use crate::error::{HeliusError, Result};
 use crate::rpc_client::RpcClient;
 use crate::types::Cluster;
 
 use reqwest::Client;
+use solana_client::nonblocking::rpc_client::RpcClient as AsyncSolanaRpcClient;
 use solana_client::rpc_client::RpcClient as SolanaRpcClient;
 
 /// The `Helius` struct is the main entry point to interacting with the SDK
@@ -19,13 +20,15 @@ pub struct Helius {
     pub client: Client,
     /// A reference-counted RPC client tailored for making requests in a thread-safe manner
     pub rpc_client: Arc<RpcClient>,
+    /// An optional asynchronous Solana client for async operations
+    pub async_rpc_client: Option<Arc<AsyncSolanaRpcClient>>,
 }
 
 impl Helius {
     /// Creates a new instance of `Helius` configured with a specific API key and a target cluster
     ///
     /// # Arguments
-    /// * `api_key` - The API key required for authenticating requests made
+    /// * `api_key` - The API key required for authenticating the requests made
     /// * `cluster` - The Solana cluster (Devnet or MainnetBeta) that defines the given network environment
     ///
     /// # Returns
@@ -47,6 +50,37 @@ impl Helius {
             config,
             client,
             rpc_client,
+            async_rpc_client: None,
+        })
+    }
+
+    /// Creates a new instance of `Helius` with an asynchronous Solana client
+    ///
+    /// # Arguments
+    /// * `api_key` - The API key required for authenticating the requests made
+    /// * `cluster` - The Solana cluster (Devnet or MainnetBeta) that defines the given network environment
+    ///
+    /// # Returns
+    /// An instance of `Helius` if successful. A `HeliusError` is returned if an error occurs during configuration or initialization of the HTTP or RPC client
+    ///
+    /// # Example
+    /// ```rust
+    /// use helius::Helius;
+    /// use helius::types::Cluster;
+    ///
+    /// let helius = Helius::new_with_async_solana("your_api_key", Cluster::Devnet).expect("Failed to create a Helius client");
+    /// ```
+    pub fn new_with_async_solana(api_key: &str, cluster: Cluster) -> Result<Self> {
+        let config: Arc<Config> = Arc::new(Config::new(api_key, cluster)?);
+        let client: Client = Client::new();
+        let url: String = format!("{}/?api-key={}", config.endpoints.rpc, config.api_key);
+        let async_solana_client: Arc<AsyncSolanaRpcClient> = Arc::new(AsyncSolanaRpcClient::new(url));
+
+        Ok(Helius {
+            config: config.clone(),
+            client: client.clone(),
+            rpc_client: Arc::new(RpcClient::new(Arc::new(client), config.clone())?),
+            async_rpc_client: Some(async_solana_client),
         })
     }
 
@@ -58,7 +92,52 @@ impl Helius {
         self.rpc_client.clone()
     }
 
+    /// Provides a thread-safe way to access asynchronous Solana client functionalities
+    ///
+    /// # Returns
+    /// A `Result` containing a `HeliusAsyncSolanaClient` if an `async_rpc_client` exists, otherwise a `HeliusError`
+    pub fn async_connection(&self) -> Result<HeliusAsyncSolanaClient> {
+        match &self.async_rpc_client {
+            Some(client) => Ok(HeliusAsyncSolanaClient::new(client.clone())),
+            None => Err(HeliusError::ClientNotInitialized {
+                text: "An asynchronous Solana RPC client must be initialized before trying to access async_connection"
+                    .to_string(),
+            }),
+        }
+    }
+
+    /// Provides a thread-safe way to access synchronous Solana client functionalities
+    ///
+    /// # Returns
+    /// A cloned `Arc<SolanaRpcClient>` that can be safely shared across threads
     pub fn connection(&self) -> Arc<SolanaRpcClient> {
         self.rpc_client.solana_client.clone()
     }
 }
+
+/// A wrapper around the asynchronous Solana RPC client that provides thread-safe access
+pub struct HeliusAsyncSolanaClient {
+    client: Arc<AsyncSolanaRpcClient>,
+}
+
+impl HeliusAsyncSolanaClient {
+    /// Creates a new instance of `HeliusAsyncSolanaClient`
+    ///
+    /// # Arguments
+    /// * `client` - The asynchronous Solana RPC client to wrap
+    ///
+    /// # Returns
+    /// An instance of `HeliusAsyncSolanaClient`
+    pub fn new(client: Arc<AsyncSolanaRpcClient>) -> Self {
+        Self { client }
+    }
+}
+
+impl Deref for HeliusAsyncSolanaClient {
+    type Target = AsyncSolanaRpcClient;
+
+    /// Dereferences the wrapper to provide access to the underlying asynchronous Solana RPC client
+    fn deref(&self) -> &Self::Target {
+        &self.client
+    }
+}

src/error.rs

@@ -24,6 +24,12 @@ pub enum HeliusError {
     #[error("Solana client error: {0}")]
     ClientError(#[from] ClientError),
 
+    /// Indicates if a client is not already initialized
+    ///
+    /// Useful for the new_with_async_solana method on the `Helius` client
+    #[error("Client not initialized: {text}")]
+    ClientNotInitialized { text: String },
+
     /// Represents compile errors from the Solana SDK
     ///
     /// This captures all compile errors thrown by the Solana SDK

src/factory.rs

@@ -89,6 +89,7 @@ impl HeliusFactory {
             config,
             client,
             rpc_client,
+            async_rpc_client: None,
         })
     }
 }

tests/rpc/test_get_asset.rs

@@ -173,6 +173,7 @@ async fn test_get_asset_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAsset = GetAsset {
@@ -228,6 +229,7 @@ async fn test_get_asset_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAsset = GetAsset {

tests/rpc/test_get_asset_batch.rs

@@ -266,6 +266,7 @@ async fn test_get_asset_batch_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetBatch = GetAssetBatch {
@@ -313,6 +314,7 @@ async fn test_get_asset_batch_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetBatch = GetAssetBatch {

tests/rpc/test_get_asset_proof.rs

@@ -63,6 +63,7 @@ async fn test_get_asset_proof_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetProof = GetAssetProof {
@@ -110,6 +111,7 @@ async fn test_get_asset_proof_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetProof = GetAssetProof {

tests/rpc/test_get_asset_proof_batch.rs

@@ -66,6 +66,7 @@ async fn test_get_asset_proof_batch_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetProofBatch = GetAssetProofBatch {
@@ -121,6 +122,7 @@ async fn test_get_asset_proof_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetProofBatch = GetAssetProofBatch {

tests/rpc/test_get_assets_by_authority.rs

@@ -230,6 +230,7 @@ async fn test_get_assets_by_authority_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetsByAuthority = GetAssetsByAuthority {
@@ -275,6 +276,7 @@ async fn test_get_assets_by_authority_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetsByAuthority = GetAssetsByAuthority {

tests/rpc/test_get_assets_by_creator.rs

@@ -230,6 +230,7 @@ async fn test_get_assets_by_creator_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetsByCreator = GetAssetsByCreator {
@@ -275,6 +276,7 @@ async fn test_get_assets_by_creator_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetsByCreator = GetAssetsByCreator {

tests/rpc/test_get_assets_by_group.rs

@@ -145,6 +145,7 @@ async fn test_get_assets_by_group_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let sorting: AssetSorting = AssetSorting {
@@ -203,6 +204,7 @@ async fn test_get_assets_by_group_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let sorting: AssetSorting = AssetSorting {

tests/rpc/test_get_assets_by_owner.rs

@@ -160,6 +160,7 @@ async fn test_get_assets_by_owner_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetsByOwner = GetAssetsByOwner {
@@ -209,6 +210,7 @@ async fn test_get_assets_by_owner_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetsByOwner = GetAssetsByOwner {

tests/rpc/test_get_nft_editions.rs

@@ -54,9 +54,10 @@ async fn test_get_nft_editions_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
-    let request = GetNftEditions {
+    let request: GetNftEditions = GetNftEditions {
         mint: Some("Ey2Qb8kLctbchQsMnhZs5DjY32To2QtPuXNwWvk4NosL".to_string()),
         page: Some(1),
         limit: Some(1),
@@ -105,6 +106,7 @@ async fn test_get_nft_editions_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request = GetNftEditions {

tests/rpc/test_get_priority_fee_estimate.rs

@@ -52,6 +52,7 @@ async fn test_get_nft_editions_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetPriorityFeeEstimateRequest = GetPriorityFeeEstimateRequest {
@@ -107,6 +108,7 @@ async fn test_get_nft_editions_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetPriorityFeeEstimateRequest = GetPriorityFeeEstimateRequest {

tests/rpc/test_get_rwa_asset.rs

@@ -61,6 +61,7 @@ async fn test_get_rwa_asset_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetRwaAssetRequest = GetRwaAssetRequest {
@@ -102,6 +103,7 @@ async fn test_get_rwa_asset_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetRwaAssetRequest = GetRwaAssetRequest {

tests/rpc/test_get_signatures_for_asset.rs

@@ -52,6 +52,7 @@ async fn test_get_asset_signatures_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetSignatures = GetAssetSignatures {
@@ -100,6 +101,7 @@ async fn test_get_asset_signatures_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetAssetSignatures = GetAssetSignatures {

tests/rpc/test_get_token_accounts.rs

@@ -59,6 +59,7 @@ async fn test_get_token_accounts_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: GetTokenAccounts = GetTokenAccounts {
@@ -110,6 +111,7 @@ async fn test_get_token_accounts_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request = GetTokenAccounts {

tests/rpc/test_search_assets.rs

@@ -160,6 +160,7 @@ async fn test_search_assets_success() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: SearchAssets = SearchAssets {
@@ -206,6 +207,7 @@ async fn test_search_assets_failure() {
         config,
         client,
         rpc_client,
+        async_rpc_client: None,
     };
 
     let request: SearchAssets = SearchAssets {