Struct safecoin_client::rpc_client::RpcClient

pub struct RpcClient { /* private fields */ }

A client of a remote Safecoin node.

RpcClient communicates with a Safecoin node over JSON-RPC, with the Safecoin JSON-RPC protocol. It is the primary Rust interface for querying and transacting with the network from external programs.

This type builds on the underlying RPC protocol, adding extra features such as timeout handling, retries, and waiting on transaction commitment levels. Some methods simply pass through to the underlying RPC protocol. Not all RPC methods are encapsulated by this type, but RpcClient does expose a generic send method for making any RpcRequest.

The documentation for most RpcClient methods contains an “RPC Reference” section that links to the documentation for the underlying JSON-RPC method. The documentation for RpcClient does not reproduce the documentation for the underlying JSON-RPC methods. Thus reading both is necessary for complete understanding.

RpcClients generally communicate over HTTP on port 8899, a typical server URL being “http://localhost:8899”.

Methods that query information from recent slots, including those that confirm transactions, decide the most recent slot to query based on a commitment level, which determines how committed or finalized a slot must be to be considered for the query. Unless specified otherwise, the commitment level is Finalized, meaning the slot is definitely permanently committed. The default commitment level can be configured by creating RpcClient with an explicit CommitmentConfig, and that default configured commitment level can be overridden by calling the various _with_commitment methods, like RpcClient::confirm_transaction_with_commitment. In some cases the configured commitment level is ignored and Finalized is used instead, as in RpcClient::get_blocks, where it would be invalid to use the Processed commitment level. These exceptions are noted in the method documentation.

Errors

Methods on RpcClient return client_error::Result, and many of them return the RpcResult typedef, which contains Response<T> on Ok. Both client_error::Result and RpcResult contain ClientError on error. In the case of RpcResult, the actual return value is in the value field, with RPC contextual information in the context field, so it is common for the value to be accessed with ?.value, as in

let signature = rpc_client.send_transaction(&tx)?;
let statuses = rpc_client.get_signature_statuses(&[signature])?.value;

Requests may timeout, in which case they return a ClientError where the ClientErrorKind is ClientErrorKind::Reqwest, and where the interior reqwest::Errors is_timeout method returns true. The default timeout is 30 seconds, and may be changed by calling an appropriate constructor with a timeout parameter.

Implementations

impl RpcClient

pub fn new_sender<T: RpcSender + Send + Sync + 'static>( sender: T, config: RpcClientConfig ) -> Self

Create an RpcClient from an RpcSender and an RpcClientConfig.

This is the basic constructor, allowing construction with any type of RpcSender. Most applications should use one of the other constructors, such as RpcClient::new, RpcClient::new_with_commitment or RpcClient::new_with_timeout.

pub fn new<U: ToString>(url: U) -> Self

Create an HTTP RpcClient.

The URL is an HTTP URL, usually for port 8899, as in “http://localhost:8899”.

The client has a default timeout of 30 seconds, and a default commitment level of Finalized.

Examples

let url = "http://localhost:8899".to_string();
let client = RpcClient::new(url);

pub fn new_with_commitment<U: ToString>( url: U, commitment_config: CommitmentConfig ) -> Self

Create an HTTP RpcClient with specified commitment level.

The URL is an HTTP URL, usually for port 8899, as in “http://localhost:8899”.

The client has a default timeout of 30 seconds, and a user-specified CommitmentLevel via CommitmentConfig.

Examples

let url = "http://localhost:8899".to_string();
let commitment_config = CommitmentConfig::processed();
let client = RpcClient::new_with_commitment(url, commitment_config);

pub fn new_with_timeout<U: ToString>(url: U, timeout: Duration) -> Self

Create an HTTP RpcClient with specified timeout.

The URL is an HTTP URL, usually for port 8899, as in “http://localhost:8899”.

The client has and a default commitment level of Finalized.

Examples

let url = "http://localhost::8899".to_string();
let timeout = Duration::from_secs(1);
let client = RpcClient::new_with_timeout(url, timeout);

pub fn new_with_timeout_and_commitment<U: ToString>( url: U, timeout: Duration, commitment_config: CommitmentConfig ) -> Self

Create an HTTP RpcClient with specified timeout and commitment level.

The URL is an HTTP URL, usually for port 8899, as in “http://localhost:8899”.

Examples

let url = "http://localhost::8899".to_string();
let timeout = Duration::from_secs(1);
let commitment_config = CommitmentConfig::processed();
let client = RpcClient::new_with_timeout_and_commitment(
    url,
    timeout,
    commitment_config,
);

pub fn new_with_timeouts_and_commitment<U: ToString>( url: U, timeout: Duration, commitment_config: CommitmentConfig, confirm_transaction_initial_timeout: Duration ) -> Self

Create an HTTP RpcClient with specified timeout and commitment level.

The URL is an HTTP URL, usually for port 8899, as in “http://localhost:8899”.

The confirm_transaction_initial_timeout argument specifies, when confirming a transaction via one of the _with_spinner methods, like RpcClient::send_and_confirm_transaction_with_spinner, the amount of time to allow for the server to initially process a transaction. In other words, setting confirm_transaction_initial_timeout to > 0 allows RpcClient to wait for confirmation of a transaction that the server has not “seen” yet.

Examples

let url = "http://localhost::8899".to_string();
let timeout = Duration::from_secs(1);
let commitment_config = CommitmentConfig::processed();
let confirm_transaction_initial_timeout = Duration::from_secs(10);
let client = RpcClient::new_with_timeouts_and_commitment(
    url,
    timeout,
    commitment_config,
    confirm_transaction_initial_timeout,
);

pub fn new_mock<U: ToString>(url: U) -> Self

Create a mock RpcClient.

A mock RpcClient contains an implementation of RpcSender that does not use the network, and instead returns synthetic responses, for use in tests.

It is primarily for internal use, with limited customizability, and behaviors determined by internal Safecoin test cases. New users should consider implementing RpcSender themselves and constructing RpcClient with RpcClient::new_sender to get mock behavior.

Unless directed otherwise, a mock RpcClient will generally return a reasonable default response to any request, at least for RpcRequest values for which responses have been implemented.

This mock can be customized by changing the url argument, which is not actually a URL, but a simple string directive that changes the mock behavior in specific scenarios:

• It is customary to set the url to “succeeds” for mocks that should return sucessfully, though this value is not actually interpreted.

• If url is “fails” then any call to send will return Ok(Value::Null).

• Other possible values of url are specific to different RpcRequest values. Read the implementation of (non-public) MockSender for details.

The RpcClient::new_mock_with_mocks function offers further customization options.

Examples

// Create an `RpcClient` that always succeeds
let url = "succeeds".to_string();
let successful_client = RpcClient::new_mock(url);

// Create an `RpcClient` that always fails
let url = "fails".to_string();
let successful_client = RpcClient::new_mock(url);

pub fn new_mock_with_mocks<U: ToString>(url: U, mocks: Mocks) -> Self

Create a mock RpcClient.

A mock RpcClient contains an implementation of RpcSender that does not use the network, and instead returns synthetic responses, for use in tests.

It is primarily for internal use, with limited customizability, and behaviors determined by internal Safecoin test cases. New users should consider implementing RpcSender themselves and constructing RpcClient with RpcClient::new_sender to get mock behavior.

Unless directed otherwise, a mock RpcClient will generally return a reasonable default response to any request, at least for RpcRequest values for which responses have been implemented.

This mock can be customized in two ways:

1. By changing the url argument, which is not actually a URL, but a simple string directive that changes the mock behavior in specific scenarios.

   It is customary to set the url to “succeeds” for mocks that should return sucessfully, though this value is not actually interpreted.

   If url is “fails” then any call to send will return Ok(Value::Null).

   Other possible values of url are specific to different RpcRequest values. Read the implementation of MockSender (which is non-public) for details.

2. Custom responses can be configured by providing Mocks. This type is a HashMap from RpcRequest to a JSON Value response, Any entries in this map override the default behavior for the given request.

The RpcClient::new_mock_with_mocks function offers further customization options.

Examples

// Create a mock with a custom repsonse to the `GetBalance` request
let account_balance = 50;
let account_balance_response = json!(Response {
    context: RpcResponseContext { slot: 1, api_version: None },
    value: json!(account_balance),
});

let mut mocks = HashMap::new();
mocks.insert(RpcRequest::GetBalance, account_balance_response);
let url = "succeeds".to_string();
let client = RpcClient::new_mock_with_mocks(url, mocks);

pub fn new_socket(addr: SocketAddr) -> Self

Create an HTTP RpcClient from a SocketAddr.

The client has a default timeout of 30 seconds, and a default commitment level of Finalized.

Examples

let addr = SocketAddr::from(([127, 0, 0, 1], 8899));
let client = RpcClient::new_socket(addr);

pub fn new_socket_with_commitment( addr: SocketAddr, commitment_config: CommitmentConfig ) -> Self

Create an HTTP RpcClient from a SocketAddr with specified commitment level.

The client has a default timeout of 30 seconds, and a user-specified CommitmentLevel via CommitmentConfig.

Examples

let addr = SocketAddr::from(([127, 0, 0, 1], 8899));
let commitment_config = CommitmentConfig::processed();
let client = RpcClient::new_socket_with_commitment(
    addr,
    commitment_config
);

pub fn new_socket_with_timeout(addr: SocketAddr, timeout: Duration) -> Self

Create an HTTP RpcClient from a SocketAddr with specified timeout.

The client has a default commitment level of Finalized.

Examples

let addr = SocketAddr::from(([127, 0, 0, 1], 8899));
let timeout = Duration::from_secs(1);
let client = RpcClient::new_socket_with_timeout(addr, timeout);

pub fn url(&self) -> String

Get the configured url of the client’s sender

pub fn commitment(&self) -> CommitmentConfig

Get the configured default commitment level.

The commitment config may be specified during construction, and determines how thoroughly committed a transaction must be when waiting for its confirmation or otherwise checking for confirmation. If not specified, the default commitment level is Finalized.

The default commitment level is overridden when calling methods that explicitly provide a CommitmentConfig, like RpcClient::confirm_transaction_with_commitment.

pub fn send_and_confirm_transaction( &self, transaction: &impl SerializableTransaction ) -> ClientResult<Signature>

Submit a transaction and wait for confirmation.

Once this function returns successfully, the given transaction is guaranteed to be processed with the configured commitment level.

After sending the transaction, this method polls in a loop for the status of the transaction until it has ben confirmed.

Errors

If the transaction is not signed then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_TRANSACTION_SIGNATURE_VERIFICATION_FAILURE.

If the preflight transaction simulation fails then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_SEND_TRANSACTION_PREFLIGHT_FAILURE.

If the receiving node is unhealthy, e.g. it is not fully synced to the cluster, then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_NODE_UNHEALTHY.

RPC Reference

This method is built on the sendTransaction RPC method, and the getLatestBlockhash RPC method.

Examples

let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let signature = rpc_client.send_and_confirm_transaction(&tx)?;

pub fn send_and_confirm_transaction_with_spinner( &self, transaction: &impl SerializableTransaction ) -> ClientResult<Signature>

pub fn send_and_confirm_transaction_with_spinner_and_commitment( &self, transaction: &impl SerializableTransaction, commitment: CommitmentConfig ) -> ClientResult<Signature>

pub fn send_and_confirm_transaction_with_spinner_and_config( &self, transaction: &impl SerializableTransaction, commitment: CommitmentConfig, config: RpcSendTransactionConfig ) -> ClientResult<Signature>

pub fn send_transaction( &self, transaction: &impl SerializableTransaction ) -> ClientResult<Signature>

Submits a signed transaction to the network.

Before a transaction is processed, the receiving node runs a “preflight check” which verifies signatures, checks that the node is healthy, and simulates the transaction. If the preflight check fails then an error is returned immediately. Preflight checks can be disabled by calling send_transaction_with_config and setting the skip_preflight field of RpcSendTransactionConfig to true.

This method does not wait for the transaction to be processed or confirmed before returning successfully. To wait for the transaction to be processed or confirmed, use the send_and_confirm_transaction method.

Errors

If the transaction is not signed then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_TRANSACTION_SIGNATURE_VERIFICATION_FAILURE.

If the preflight transaction simulation fails then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_SEND_TRANSACTION_PREFLIGHT_FAILURE.

If the receiving node is unhealthy, e.g. it is not fully synced to the cluster, then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_NODE_UNHEALTHY.

RPC Reference

This method is built on the sendTransaction RPC method.

Examples

// Transfer lamports from Alice to Bob
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let signature = rpc_client.send_transaction(&tx)?;

pub fn send_transaction_with_config( &self, transaction: &impl SerializableTransaction, config: RpcSendTransactionConfig ) -> ClientResult<Signature>

Submits a signed transaction to the network.

Before a transaction is processed, the receiving node runs a “preflight check” which verifies signatures, checks that the node is healthy, and simulates the transaction. If the preflight check fails then an error is returned immediately. Preflight checks can be disabled by setting the skip_preflight field of RpcSendTransactionConfig to true.

This method does not wait for the transaction to be processed or confirmed before returning successfully. To wait for the transaction to be processed or confirmed, use the send_and_confirm_transaction method.

Errors

If preflight checks are enabled, if the transaction is not signed then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_TRANSACTION_SIGNATURE_VERIFICATION_FAILURE.

If preflight checks are enabled, if the preflight transaction simulation fails then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_SEND_TRANSACTION_PREFLIGHT_FAILURE.

If the receiving node is unhealthy, e.g. it is not fully synced to the cluster, then an error with kind RpcError is returned, containing an RpcResponseError with code set to JSON_RPC_SERVER_ERROR_NODE_UNHEALTHY.

RPC Reference

This method is built on the sendTransaction RPC method.

Examples

// Transfer lamports from Alice to Bob
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let config = RpcSendTransactionConfig {
    skip_preflight: true,
    .. RpcSendTransactionConfig::default()
};
let signature = rpc_client.send_transaction_with_config(
    &tx,
    config,
)?;

pub fn send<T>(&self, request: RpcRequest, params: Value) -> ClientResult<T>where T: DeserializeOwned,

pub fn confirm_transaction(&self, signature: &Signature) -> ClientResult<bool>

Check the confirmation status of a transaction.

Returns true if the given transaction succeeded and has been committed with the configured commitment level, which can be retrieved with the commitment method.

Note that this method does not wait for a transaction to be confirmed — it only checks whether a transaction has been confirmed. To submit a transaction and wait for it to confirm, use send_and_confirm_transaction.

This method returns false if the transaction failed, even if it has been confirmed.

RPC Reference

This method is built on the getSignatureStatuses RPC method.

Examples

// Transfer lamports from Alice to Bob and wait for confirmation
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let signature = rpc_client.send_transaction(&tx)?;

loop {
    let confirmed = rpc_client.confirm_transaction(&signature)?;
    if confirmed {
        break;
    }
}

pub fn confirm_transaction_with_commitment( &self, signature: &Signature, commitment_config: CommitmentConfig ) -> RpcResult<bool>

Check the confirmation status of a transaction.

Returns an RpcResult with value true if the given transaction succeeded and has been committed with the given commitment level.

Note that this method does not wait for a transaction to be confirmed — it only checks whether a transaction has been confirmed. To submit a transaction and wait for it to confirm, use send_and_confirm_transaction.

This method returns an RpcResult with value false if the transaction failed, even if it has been confirmed.

RPC Reference

This method is built on the getSignatureStatuses RPC method.

Examples

// Transfer lamports from Alice to Bob and wait for confirmation
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let signature = rpc_client.send_transaction(&tx)?;

loop {
    let commitment_config = CommitmentConfig::processed();
    let confirmed = rpc_client.confirm_transaction_with_commitment(&signature, commitment_config)?;
    if confirmed.value {
        break;
    }
}

pub fn confirm_transaction_with_spinner( &self, signature: &Signature, recent_blockhash: &Hash, commitment_config: CommitmentConfig ) -> ClientResult<()>

pub fn simulate_transaction( &self, transaction: &impl SerializableTransaction ) -> RpcResult<RpcSimulateTransactionResult>

Simulates sending a transaction.

If the transaction fails, then the err field of the returned RpcSimulateTransactionResult will be Some. Any logs emitted from the transaction are returned in the logs field.

Simulating a transaction is similar to the “preflight check” that is run by default when sending a transaction.

By default, signatures are not verified during simulation. To verify signatures, call the simulate_transaction_with_config method, with the sig_verify field of RpcSimulateTransactionConfig set to true.

RPC Reference

This method is built on the simulateTransaction RPC method.

Examples

// Transfer lamports from Alice to Bob
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let result = rpc_client.simulate_transaction(&tx)?;
assert!(result.value.err.is_none());

pub fn simulate_transaction_with_config( &self, transaction: &impl SerializableTransaction, config: RpcSimulateTransactionConfig ) -> RpcResult<RpcSimulateTransactionResult>

Simulates sending a transaction.

If the transaction fails, then the err field of the returned RpcSimulateTransactionResult will be Some. Any logs emitted from the transaction are returned in the logs field.

Simulating a transaction is similar to the “preflight check” that is run by default when sending a transaction.

By default, signatures are not verified during simulation. To verify signatures, call the simulate_transaction_with_config method, with the sig_verify field of RpcSimulateTransactionConfig set to true.

This method can additionally query information about accounts by including them in the accounts field of the RpcSimulateTransactionConfig argument, in which case those results are reported in the accounts field of the returned RpcSimulateTransactionResult.

RPC Reference

This method is built on the simulateTransaction RPC method.

Examples

// Transfer lamports from Alice to Bob
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let config = RpcSimulateTransactionConfig {
    sig_verify: true,
    .. RpcSimulateTransactionConfig::default()
};
let result = rpc_client.simulate_transaction_with_config(
    &tx,
    config,
)?;
assert!(result.value.err.is_none());

pub fn get_highest_snapshot_slot(&self) -> ClientResult<RpcSnapshotSlotInfo>

Returns the highest slot information that the node has snapshots for.

This will find the highest full snapshot slot, and the highest incremental snapshot slot based on the full snapshot slot, if there is one.

RPC Reference

This method corresponds directly to the getHighestSnapshotSlot RPC method.

Examples

let snapshot_slot_info = rpc_client.get_highest_snapshot_slot()?;

pub fn get_snapshot_slot(&self) -> ClientResult<Slot>

👎Deprecated since 1.8.0: Please use RpcClient::get_highest_snapshot_slot() instead

pub fn get_signature_status( &self, signature: &Signature ) -> ClientResult<Option<Result<()>>>

Check if a transaction has been processed with the default commitment level.

If the transaction has been processed with the default commitment level, then this method returns Ok of Some. If the transaction has not yet been processed with the default commitment level, it returns Ok of None.

If the transaction has been processed with the default commitment level, and the transaction succeeded, this method returns Ok(Some(Ok(()))). If the transaction has peen processed with the default commitment level, and the transaction failed, this method returns Ok(Some(Err(_))), where the interior error is type TransactionError.

This function only searches a node’s recent history, including all recent slots, plus up to [MAX_RECENT_BLOCKHASHES][solana_sdk::clock::MAX_RECENT_BLOCKHASHES] rooted slots. To search the full transaction history use the get_signature_statuse_with_commitment_and_history method.

RPC Reference

This method is built on the getSignatureStatuses RPC method.

Examples

let signature = rpc_client.send_transaction(&tx)?;
let status = rpc_client.get_signature_status(&signature)?;

pub fn get_signature_statuses( &self, signatures: &[Signature] ) -> RpcResult<Vec<Option<TransactionStatus>>>

Gets the statuses of a list of transaction signatures.

The returned vector of TransactionStatus has the same length as the input slice.

For any transaction that has not been processed by the network, the value of the corresponding entry in the returned vector is None. As a result, a transaction that has recently been submitted will not have a status immediately.

To submit a transaction and wait for it to confirm, use send_and_confirm_transaction.

This function ignores the configured confirmation level, and returns the transaction status whatever it is. It does not wait for transactions to be processed.

This function only searches a node’s recent history, including all recent slots, plus up to [MAX_RECENT_BLOCKHASHES][solana_sdk::clock::MAX_RECENT_BLOCKHASHES] rooted slots. To search the full transaction history use the get_signature_statuses_with_history method.

Errors

Any individual TransactionStatus may have triggered an error during processing, in which case its err field will be Some.

RPC Reference

This method corresponds directly to the getSignatureStatuses RPC method.

Examples

// Send lamports from Alice to Bob and wait for the transaction to be processed
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = system_transaction::transfer(&alice, &bob.pubkey(), lamports, latest_blockhash);
let signature = rpc_client.send_transaction(&tx)?;

let status = loop {
   let statuses = rpc_client.get_signature_statuses(&[signature])?.value;
   if let Some(status) = statuses[0].clone() {
       break status;
   }
   std::thread::sleep(Duration::from_millis(100));
};

assert!(status.err.is_none());

pub fn get_signature_statuses_with_history( &self, signatures: &[Signature] ) -> RpcResult<Vec<Option<TransactionStatus>>>

Gets the statuses of a list of transaction signatures.

The returned vector of TransactionStatus has the same length as the input slice.

For any transaction that has not been processed by the network, the value of the corresponding entry in the returned vector is None. As a result, a transaction that has recently been submitted will not have a status immediately.

To submit a transaction and wait for it to confirm, use send_and_confirm_transaction.

This function ignores the configured confirmation level, and returns the transaction status whatever it is. It does not wait for transactions to be processed.

This function searches a node’s full ledger history and (if implemented) long-term storage. To search for transactions in recent slots only use the get_signature_statuses method.

Errors

Any individual TransactionStatus may have triggered an error during processing, in which case its err field will be Some.

RPC Reference

This method corresponds directly to the getSignatureStatuses RPC method, with the searchTransactionHistory configuration option set to true.

Examples

// Check if an old transaction exists
let signature = get_old_transaction_signature();
let latest_blockhash = rpc_client.get_latest_blockhash()?;
let statuses = rpc_client.get_signature_statuses_with_history(&[signature])?.value;
if statuses[0].is_none() {
    println!("old transaction does not exist");
}

pub fn get_signature_status_with_commitment( &self, signature: &Signature, commitment_config: CommitmentConfig ) -> ClientResult<Option<Result<()>>>

Check if a transaction has been processed with the given commitment level.

If the transaction has been processed with the given commitment level, then this method returns Ok of Some. If the transaction has not yet been processed with the given commitment level, it returns Ok of None.

If the transaction has been processed with the given commitment level, and the transaction succeeded, this method returns Ok(Some(Ok(()))). If the transaction has peen processed with the given commitment level, and the transaction failed, this method returns Ok(Some(Err(_))), where the interior error is type TransactionError.

This function only searches a node’s recent history, including all recent slots, plus up to [MAX_RECENT_BLOCKHASHES][solana_sdk::clock::MAX_RECENT_BLOCKHASHES] rooted slots. To search the full transaction history use the get_signature_statuse_with_commitment_and_history method.

RPC Reference

This method is built on the getSignatureStatuses RPC method.

Examples

let signature = rpc_client.send_and_confirm_transaction(&tx)?;
let commitment_config = CommitmentConfig::processed();
let status = rpc_client.get_signature_status_with_commitment(
    &signature,
    commitment_config,
)?;

pub fn get_signature_status_with_commitment_and_history( &self, signature: &Signature, commitment_config: CommitmentConfig, search_transaction_history: bool ) -> ClientResult<Option<Result<()>>>

Check if a transaction has been processed with the given commitment level.

If the transaction has been processed with the given commitment level, then this method returns Ok of Some. If the transaction has not yet been processed with the given commitment level, it returns Ok of None.

If the transaction has been processed with the given commitment level, and the transaction succeeded, this method returns Ok(Some(Ok(()))). If the transaction has peen processed with the given commitment level, and the transaction failed, this method returns Ok(Some(Err(_))), where the interior error is type TransactionError.

This method optionally searches a node’s full ledger history and (if implemented) long-term storage.

RPC Reference

This method is built on the getSignatureStatuses RPC method.

Examples

let signature = rpc_client.send_transaction(&tx)?;
let commitment_config = CommitmentConfig::processed();
let search_transaction_history = true;
let status = rpc_client.get_signature_status_with_commitment_and_history(
    &signature,
    commitment_config,
    search_transaction_history,
)?;

pub fn get_slot(&self) -> ClientResult<Slot>

Returns the slot that has reached the configured commitment level.

RPC Reference

This method corresponds directly to the getSlot RPC method.

Examples

let slot = rpc_client.get_slot()?;

pub fn get_slot_with_commitment( &self, commitment_config: CommitmentConfig ) -> ClientResult<Slot>

Returns the slot that has reached the given commitment level.

RPC Reference

This method corresponds directly to the getSlot RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let slot = rpc_client.get_slot_with_commitment(commitment_config)?;

pub fn get_block_height(&self) -> ClientResult<u64>

Returns the block height that has reached the configured commitment level.

RPC Reference

This method is corresponds directly to the getBlockHeight RPC method.

Examples

let block_height = rpc_client.get_block_height()?;

pub fn get_block_height_with_commitment( &self, commitment_config: CommitmentConfig ) -> ClientResult<u64>

Returns the block height that has reached the given commitment level.

RPC Reference

This method is corresponds directly to the getBlockHeight RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let block_height = rpc_client.get_block_height_with_commitment(
    commitment_config,
)?;

pub fn get_slot_leaders( &self, start_slot: Slot, limit: u64 ) -> ClientResult<Vec<Pubkey>>

Returns the slot leaders for a given slot range.

RPC Reference

This method corresponds directly to the getSlotLeaders RPC method.

Examples

let start_slot = 1;
let limit = 3;
let leaders = rpc_client.get_slot_leaders(start_slot, limit)?;

pub fn get_block_production(&self) -> RpcResult<RpcBlockProduction>

Get block production for the current epoch.

RPC Reference

This method corresponds directly to the getBlockProduction RPC method.

Examples

let production = rpc_client.get_block_production()?;

pub fn get_block_production_with_config( &self, config: RpcBlockProductionConfig ) -> RpcResult<RpcBlockProduction>

Get block production for the current or previous epoch.

RPC Reference

This method corresponds directly to the getBlockProduction RPC method.

Examples

let leader = rpc_client.get_slot_leaders(start_slot, limit)?;
let leader = leader[0];
let range = RpcBlockProductionConfigRange {
    first_slot: start_slot,
    last_slot: Some(start_slot + limit),
};
let config = RpcBlockProductionConfig {
    identity: Some(leader.to_string()),
    range: Some(range),
    commitment: Some(CommitmentConfig::processed()),
};
let production = rpc_client.get_block_production_with_config(
    config
)?;

pub fn get_stake_activation( &self, stake_account: Pubkey, epoch: Option<Epoch> ) -> ClientResult<RpcStakeActivation>

Returns epoch activation information for a stake account.

This method uses the configured [commitment level].

RPC Reference

This method corresponds directly to the getStakeActivation RPC method.

Examples

// Find some vote account to delegate to
let vote_accounts = rpc_client.get_vote_accounts()?;
let vote_account = vote_accounts.current.get(0).unwrap_or_else(|| &vote_accounts.delinquent[0]);
let vote_account_pubkey = &vote_account.vote_pubkey;
let vote_account_pubkey = Pubkey::from_str(vote_account_pubkey).expect("pubkey");

// Create a stake account
let stake_account = Keypair::new();
let stake_account_pubkey = stake_account.pubkey();

// Build the instructions to create new stake account,
// funded by alice, and delegate to a validator's vote account.
let instrs = stake::instruction::create_account_and_delegate_stake(
    &alice.pubkey(),
    &stake_account_pubkey,
    &vote_account_pubkey,
    &Authorized::auto(&stake_account_pubkey),
    &Lockup::default(),
    1_000_000,
);

let latest_blockhash = rpc_client.get_latest_blockhash()?;
let tx = Transaction::new_signed_with_payer(
    &instrs,
    Some(&alice.pubkey()),
    &[&alice, &stake_account],
    latest_blockhash,
);

rpc_client.send_and_confirm_transaction(&tx)?;

let epoch_info = rpc_client.get_epoch_info()?;
let activation = rpc_client.get_stake_activation(
    stake_account_pubkey,
    Some(epoch_info.epoch),
)?;

assert_eq!(activation.state, StakeActivationState::Activating);

pub fn supply(&self) -> RpcResult<RpcSupply>

Returns information about the current supply.

This method uses the configured commitment level.

RPC Reference

This method corresponds directly to the getSupply RPC method.

Examples

let supply = rpc_client.supply()?;

pub fn supply_with_commitment( &self, commitment_config: CommitmentConfig ) -> RpcResult<RpcSupply>

Returns information about the current supply.

RPC Reference

This method corresponds directly to the getSupply RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let supply = rpc_client.supply_with_commitment(
    commitment_config,
)?;

pub fn get_largest_accounts_with_config( &self, config: RpcLargestAccountsConfig ) -> RpcResult<Vec<RpcAccountBalance>>

Returns the 20 largest accounts, by lamport balance.

RPC Reference

This method corresponds directly to the getLargestAccounts RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let config = RpcLargestAccountsConfig {
    commitment: Some(commitment_config),
    filter: Some(RpcLargestAccountsFilter::Circulating),
};
let accounts = rpc_client.get_largest_accounts_with_config(
    config,
)?;

pub fn get_vote_accounts(&self) -> ClientResult<RpcVoteAccountStatus>

Returns the account info and associated stake for all the voting accounts that have reached the configured commitment level.

RPC Reference

This method corresponds directly to the getVoteAccounts RPC method.

Examples

let accounts = rpc_client.get_vote_accounts()?;

pub fn get_vote_accounts_with_commitment( &self, commitment_config: CommitmentConfig ) -> ClientResult<RpcVoteAccountStatus>

Returns the account info and associated stake for all the voting accounts that have reached the given commitment level.

RPC Reference

This method corresponds directly to the getVoteAccounts RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let accounts = rpc_client.get_vote_accounts_with_commitment(
    commitment_config,
)?;

pub fn get_vote_accounts_with_config( &self, config: RpcGetVoteAccountsConfig ) -> ClientResult<RpcVoteAccountStatus>

Returns the account info and associated stake for all the voting accounts that have reached the given commitment level.

RPC Reference

This method corresponds directly to the getVoteAccounts RPC method.

Examples

let vote_pubkey = vote_keypair.pubkey();
let commitment = CommitmentConfig::processed();
let config = RpcGetVoteAccountsConfig {
    vote_pubkey: Some(vote_pubkey.to_string()),
    commitment: Some(commitment),
    keep_unstaked_delinquents: Some(true),
    delinquent_slot_distance: Some(10),
};
let accounts = rpc_client.get_vote_accounts_with_config(
    config,
)?;

pub fn wait_for_max_stake( &self, commitment: CommitmentConfig, max_stake_percent: f32 ) -> ClientResult<()>

pub fn get_cluster_nodes(&self) -> ClientResult<Vec<RpcContactInfo>>

Returns information about all the nodes participating in the cluster.

RPC Reference

This method corresponds directly to the getClusterNodes RPC method.

Examples

let cluster_nodes = rpc_client.get_cluster_nodes()?;

pub fn get_block(&self, slot: Slot) -> ClientResult<EncodedConfirmedBlock>

Returns identity and transaction information about a confirmed block in the ledger.

The encodings are returned in UiTransactionEncoding::Json format. To return transactions in other encodings, use get_block_with_encoding.

RPC Reference

This method corresponds directly to the getBlock RPC method.

Examples

let block = rpc_client.get_block(slot)?;

pub fn get_block_with_encoding( &self, slot: Slot, encoding: UiTransactionEncoding ) -> ClientResult<EncodedConfirmedBlock>

Returns identity and transaction information about a confirmed block in the ledger.

RPC Reference

This method corresponds directly to the getBlock RPC method.

Examples

let encoding = UiTransactionEncoding::Base58;
let block = rpc_client.get_block_with_encoding(
    slot,
    encoding,
)?;

pub fn get_block_with_config( &self, slot: Slot, config: RpcBlockConfig ) -> ClientResult<UiConfirmedBlock>

Returns identity and transaction information about a confirmed block in the ledger.

RPC Reference

This method corresponds directly to the getBlock RPC method.

Examples

let config = RpcBlockConfig {
    encoding: Some(UiTransactionEncoding::Base58),
    transaction_details: Some(TransactionDetails::None),
    rewards: Some(true),
    commitment: None,
    max_supported_transaction_version: Some(0),
};
let block = rpc_client.get_block_with_config(
    slot,
    config,
)?;

pub fn get_confirmed_block( &self, slot: Slot ) -> ClientResult<EncodedConfirmedBlock>

👎Deprecated since 1.7.0: Please use RpcClient::get_block() instead

pub fn get_confirmed_block_with_encoding( &self, slot: Slot, encoding: UiTransactionEncoding ) -> ClientResult<EncodedConfirmedBlock>

👎Deprecated since 1.7.0: Please use RpcClient::get_block_with_encoding() instead

pub fn get_confirmed_block_with_config( &self, slot: Slot, config: RpcConfirmedBlockConfig ) -> ClientResult<UiConfirmedBlock>

👎Deprecated since 1.7.0: Please use RpcClient::get_block_with_config() instead

pub fn get_blocks( &self, start_slot: Slot, end_slot: Option<Slot> ) -> ClientResult<Vec<Slot>>

Returns a list of finalized blocks between two slots.

The range is inclusive, with results including the block for both start_slot and end_slot.

If end_slot is not provided, then the end slot is for the latest finalized block.

This method may not return blocks for the full range of slots if some slots do not have corresponding blocks. To simply get a specific number of sequential blocks, use the get_blocks_with_limit method.

This method uses the Finalized commitment level.

Errors

This method returns an error if the range is greater than 500,000 slots.

RPC Reference

This method corresponds directly to the getBlocks RPC method, unless the remote node version is less than 1.7, in which case it maps to the getConfirmedBlocks RPC method.

Examples

// Get up to the first 10 blocks
let start_slot = 0;
let end_slot = 9;
let blocks = rpc_client.get_blocks(start_slot, Some(end_slot))?;

pub fn get_blocks_with_commitment( &self, start_slot: Slot, end_slot: Option<Slot>, commitment_config: CommitmentConfig ) -> ClientResult<Vec<Slot>>

Returns a list of confirmed blocks between two slots.

The range is inclusive, with results including the block for both start_slot and end_slot.

If end_slot is not provided, then the end slot is for the latest block with the given commitment level.

This method may not return blocks for the full range of slots if some slots do not have corresponding blocks. To simply get a specific number of sequential blocks, use the get_blocks_with_limit_and_commitment method.

Errors

This method returns an error if the range is greater than 500,000 slots.

This method returns an error if the given commitment level is below Confirmed.

RPC Reference

This method corresponds directly to the getBlocks RPC method, unless the remote node version is less than 1.7, in which case it maps to the getConfirmedBlocks RPC method.

Examples

// Get up to the first 10 blocks
let start_slot = 0;
let end_slot = 9;
// Method does not support commitment below `confirmed`
let commitment_config = CommitmentConfig::confirmed();
let blocks = rpc_client.get_blocks_with_commitment(
    start_slot,
    Some(end_slot),
    commitment_config,
)?;

pub fn get_blocks_with_limit( &self, start_slot: Slot, limit: usize ) -> ClientResult<Vec<Slot>>

Returns a list of finalized blocks starting at the given slot.

This method uses the Finalized commitment level.

Errors

This method returns an error if the limit is greater than 500,000 slots.

RPC Reference

This method corresponds directly to the getBlocksWithLimit RPC method, unless the remote node version is less than 1.7, in which case it maps to the getConfirmedBlocksWithLimit RPC method.

Examples

// Get the first 10 blocks
let start_slot = 0;
let limit = 10;
let blocks = rpc_client.get_blocks_with_limit(start_slot, limit)?;

pub fn get_blocks_with_limit_and_commitment( &self, start_slot: Slot, limit: usize, commitment_config: CommitmentConfig ) -> ClientResult<Vec<Slot>>

Returns a list of confirmed blocks starting at the given slot.

Errors

This method returns an error if the limit is greater than 500,000 slots.

This method returns an error if the given commitment level is below Confirmed.

RPC Reference

This method corresponds directly to the getBlocksWithLimit RPC method, unless the remote node version is less than 1.7, in which case it maps to the getConfirmedBlocksWithLimit RPC method.

Examples

// Get the first 10 blocks
let start_slot = 0;
let limit = 10;
let commitment_config = CommitmentConfig::confirmed();
let blocks = rpc_client.get_blocks_with_limit_and_commitment(
    start_slot,
    limit,
    commitment_config,
)?;

pub fn get_confirmed_blocks( &self, start_slot: Slot, end_slot: Option<Slot> ) -> ClientResult<Vec<Slot>>

👎Deprecated since 1.7.0: Please use RpcClient::get_blocks() instead

pub fn get_confirmed_blocks_with_commitment( &self, start_slot: Slot, end_slot: Option<Slot>, commitment_config: CommitmentConfig ) -> ClientResult<Vec<Slot>>

👎Deprecated since 1.7.0: Please use RpcClient::get_blocks_with_commitment() instead

pub fn get_confirmed_blocks_with_limit( &self, start_slot: Slot, limit: usize ) -> ClientResult<Vec<Slot>>

👎Deprecated since 1.7.0: Please use RpcClient::get_blocks_with_limit() instead

pub fn get_confirmed_blocks_with_limit_and_commitment( &self, start_slot: Slot, limit: usize, commitment_config: CommitmentConfig ) -> ClientResult<Vec<Slot>>

👎Deprecated since 1.7.0: Please use RpcClient::get_blocks_with_limit_and_commitment() instead

pub fn get_signatures_for_address( &self, address: &Pubkey ) -> ClientResult<Vec<RpcConfirmedTransactionStatusWithSignature>>

Get confirmed signatures for transactions involving an address.

Returns up to 1000 signatures, ordered from newest to oldest.

This method uses the Finalized commitment level.

RPC Reference

This method corresponds directly to the getSignaturesForAddress RPC method, unless the remote node version is less than 1.7, in which case it maps to the getSignaturesForAddress2 RPC method.

Examples

let signatures = rpc_client.get_signatures_for_address(
    &alice.pubkey(),
)?;

pub fn get_signatures_for_address_with_config( &self, address: &Pubkey, config: GetConfirmedSignaturesForAddress2Config ) -> ClientResult<Vec<RpcConfirmedTransactionStatusWithSignature>>

Get confirmed signatures for transactions involving an address.

Errors

This method returns an error if the given commitment level is below Confirmed.

RPC Reference

This method corresponds directly to the getSignaturesForAddress RPC method, unless the remote node version is less than 1.7, in which case it maps to the getSignaturesForAddress2 RPC method.

Examples

let config = GetConfirmedSignaturesForAddress2Config {
    before: None,
    until: None,
    limit: Some(3),
    commitment: Some(CommitmentConfig::confirmed()),
};
let signatures = rpc_client.get_signatures_for_address_with_config(
    &alice.pubkey(),
    config,
)?;

pub fn get_confirmed_signatures_for_address2( &self, address: &Pubkey ) -> ClientResult<Vec<RpcConfirmedTransactionStatusWithSignature>>

👎Deprecated since 1.7.0: Please use RpcClient::get_signatures_for_address() instead

pub fn get_confirmed_signatures_for_address2_with_config( &self, address: &Pubkey, config: GetConfirmedSignaturesForAddress2Config ) -> ClientResult<Vec<RpcConfirmedTransactionStatusWithSignature>>

👎Deprecated since 1.7.0: Please use RpcClient::get_signatures_for_address_with_config() instead

pub fn get_transaction( &self, signature: &Signature, encoding: UiTransactionEncoding ) -> ClientResult<EncodedConfirmedTransactionWithStatusMeta>

Returns transaction details for a confirmed transaction.

This method uses the Finalized commitment level.

RPC Reference

This method corresponds directly to the getTransaction RPC method, unless the remote node version is less than 1.7, in which case it maps to the getConfirmedTransaction RPC method.

Examples

let signature = rpc_client.send_and_confirm_transaction(&tx)?;
let transaction = rpc_client.get_transaction(
    &signature,
    UiTransactionEncoding::Json,
)?;

pub fn get_transaction_with_config( &self, signature: &Signature, config: RpcTransactionConfig ) -> ClientResult<EncodedConfirmedTransactionWithStatusMeta>

Returns transaction details for a confirmed transaction.

Errors

This method returns an error if the given commitment level is below Confirmed.

RPC Reference

This method corresponds directly to the getTransaction RPC method, unless the remote node version is less than 1.7, in which case it maps to the getConfirmedTransaction RPC method.

Examples

let signature = rpc_client.send_and_confirm_transaction(&tx)?;
let config = RpcTransactionConfig {
    encoding: Some(UiTransactionEncoding::Json),
    commitment: Some(CommitmentConfig::confirmed()),
    max_supported_transaction_version: Some(0),
};
let transaction = rpc_client.get_transaction_with_config(
    &signature,
    config,
)?;

pub fn get_confirmed_transaction( &self, signature: &Signature, encoding: UiTransactionEncoding ) -> ClientResult<EncodedConfirmedTransactionWithStatusMeta>

👎Deprecated since 1.7.0: Please use RpcClient::get_transaction() instead

pub fn get_confirmed_transaction_with_config( &self, signature: &Signature, config: RpcConfirmedTransactionConfig ) -> ClientResult<EncodedConfirmedTransactionWithStatusMeta>

👎Deprecated since 1.7.0: Please use RpcClient::get_transaction_with_config() instead

pub fn get_block_time(&self, slot: Slot) -> ClientResult<UnixTimestamp>

Returns the estimated production time of a block.

RPC Reference

This method corresponds directly to the getBlockTime RPC method.

Examples

// Get the time of the most recent finalized block
let slot = rpc_client.get_slot()?;
let block_time = rpc_client.get_block_time(slot)?;

pub fn get_epoch_info(&self) -> ClientResult<EpochInfo>

Returns information about the current epoch.

This method uses the configured default commitment level.

RPC Reference

This method corresponds directly to the getEpochInfo RPC method.

Examples

let epoch_info = rpc_client.get_epoch_info()?;

pub fn get_epoch_info_with_commitment( &self, commitment_config: CommitmentConfig ) -> ClientResult<EpochInfo>

Returns information about the current epoch.

RPC Reference

This method corresponds directly to the getEpochInfo RPC method.

Examples

let commitment_config = CommitmentConfig::confirmed();
let epoch_info = rpc_client.get_epoch_info_with_commitment(
    commitment_config,
)?;

pub fn get_leader_schedule( &self, slot: Option<Slot> ) -> ClientResult<Option<RpcLeaderSchedule>>

Returns the leader schedule for an epoch.

This method uses the configured default commitment level.

RPC Reference

This method corresponds directly to the getLeaderSchedule RPC method.

Examples

let leader_schedule = rpc_client.get_leader_schedule(
    Some(slot),
)?;

pub fn get_leader_schedule_with_commitment( &self, slot: Option<Slot>, commitment_config: CommitmentConfig ) -> ClientResult<Option<RpcLeaderSchedule>>

Returns the leader schedule for an epoch.

RPC Reference

This method corresponds directly to the getLeaderSchedule RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let leader_schedule = rpc_client.get_leader_schedule_with_commitment(
    Some(slot),
    commitment_config,
)?;

pub fn get_leader_schedule_with_config( &self, slot: Option<Slot>, config: RpcLeaderScheduleConfig ) -> ClientResult<Option<RpcLeaderSchedule>>

Returns the leader schedule for an epoch.

RPC Reference

This method corresponds directly to the getLeaderSchedule RPC method.

Examples

let config = RpcLeaderScheduleConfig {
    identity: Some(validator_pubkey_str),
    commitment: Some(CommitmentConfig::processed()),
};
let leader_schedule = rpc_client.get_leader_schedule_with_config(
    Some(slot),
    config,
)?;

pub fn get_epoch_schedule(&self) -> ClientResult<EpochSchedule>

Returns epoch schedule information from this cluster’s genesis config.

RPC Reference

This method corresponds directly to the getEpochSchedule RPC method.

Examples

let epoch_schedule = rpc_client.get_epoch_schedule()?;

pub fn get_recent_performance_samples( &self, limit: Option<usize> ) -> ClientResult<Vec<RpcPerfSample>>

Returns a list of recent performance samples, in reverse slot order.

Performance samples are taken every 60 seconds and include the number of transactions and slots that occur in a given time window.

RPC Reference

This method corresponds directly to the getRecentPerformanceSamples RPC method.

Examples

let limit = 10;
let performance_samples = rpc_client.get_recent_performance_samples(
    Some(limit),
)?;

pub fn get_recent_prioritization_fees( &self, addresses: &[Pubkey] ) -> ClientResult<Vec<RpcPrioritizationFee>>

Returns a list of minimum prioritization fees from recent blocks. Takes an optional vector of addresses; if any addresses are provided, the response will reflect the minimum prioritization fee to land a transaction locking all of the provided accounts as writable.

Currently, a node’s prioritization-fee cache stores data from up to 150 blocks.

RPC Reference

This method corresponds directly to the getRecentPrioritizationFees RPC method.

Examples

let addresses = vec![alice.pubkey(), bob.pubkey()];
let prioritization_fees = rpc_client.get_recent_prioritization_fees(
    &addresses,
)?;

pub fn get_identity(&self) -> ClientResult<Pubkey>

Returns the identity pubkey for the current node.

RPC Reference

This method corresponds directly to the getIdentity RPC method.

Examples

let identity = rpc_client.get_identity()?;

pub fn get_inflation_governor(&self) -> ClientResult<RpcInflationGovernor>

Returns the current inflation governor.

This method uses the Finalized commitment level.

RPC Reference

This method corresponds directly to the getInflationGovernor RPC method.

Examples

let inflation_governor = rpc_client.get_inflation_governor()?;

pub fn get_inflation_rate(&self) -> ClientResult<RpcInflationRate>

Returns the specific inflation values for the current epoch.

RPC Reference

This method corresponds directly to the getInflationRate RPC method.

Examples

let inflation_rate = rpc_client.get_inflation_rate()?;

pub fn get_inflation_reward( &self, addresses: &[Pubkey], epoch: Option<Epoch> ) -> ClientResult<Vec<Option<RpcInflationReward>>>

Returns the inflation reward for a list of addresses for an epoch.

This method uses the configured commitment level.

RPC Reference

This method corresponds directly to the getInflationReward RPC method.

Examples

let addresses = vec![alice.pubkey(), bob.pubkey()];
let inflation_reward = rpc_client.get_inflation_reward(
    &addresses,
    Some(epoch),
)?;

pub fn get_version(&self) -> ClientResult<RpcVersionInfo>

Returns the current safecoin version running on the node.

RPC Reference

This method corresponds directly to the getVersion RPC method.

Examples

let expected_version = semver::Version::new(1, 7, 0);
let version = rpc_client.get_version()?;
let version = semver::Version::parse(&version.solana_core)?;
assert!(version >= expected_version);

pub fn minimum_ledger_slot(&self) -> ClientResult<Slot>

Returns the lowest slot that the node has information about in its ledger.

This value may increase over time if the node is configured to purge older ledger data.

RPC Reference

This method corresponds directly to the minimumLedgerSlot RPC method.

Examples

let slot = rpc_client.minimum_ledger_slot()?;

pub fn get_account(&self, pubkey: &Pubkey) -> ClientResult<Account>

Returns all information associated with the account of the provided pubkey.

This method uses the configured commitment level.

To get multiple accounts at once, use the get_multiple_accounts method.

Errors

If the account does not exist, this method returns RpcError::ForUser. This is unlike get_account_with_commitment, which returns Ok(None) if the account does not exist.

RPC Reference

This method is built on the getAccountInfo RPC method.

Examples

let alice_pubkey = Pubkey::from_str("BgvYtJEfmZYdVKiptmMjxGzv8iQoo4MWjsP3QsTkhhxa").unwrap();
let account = rpc_client.get_account(&alice_pubkey)?;

pub fn get_account_with_commitment( &self, pubkey: &Pubkey, commitment_config: CommitmentConfig ) -> RpcResult<Option<Account>>

Returns all information associated with the account of the provided pubkey.

If the account does not exist, this method returns Ok(None).

To get multiple accounts at once, use the get_multiple_accounts_with_commitment method.

RPC Reference

This method is built on the getAccountInfo RPC method.

Examples

let alice_pubkey = Pubkey::from_str("BgvYtJEfmZYdVKiptmMjxGzv8iQoo4MWjsP3QsTkhhxa").unwrap();
let commitment_config = CommitmentConfig::processed();
let account = rpc_client.get_account_with_commitment(
    &alice_pubkey,
    commitment_config,
)?;
assert!(account.value.is_some());

pub fn get_account_with_config( &self, pubkey: &Pubkey, config: RpcAccountInfoConfig ) -> RpcResult<Option<Account>>

Returns all information associated with the account of the provided pubkey.

If the account does not exist, this method returns Ok(None).

To get multiple accounts at once, use the get_multiple_accounts_with_config method.

RPC Reference

This method is built on the getAccountInfo RPC method.

Examples

let alice_pubkey = Pubkey::from_str("BgvYtJEfmZYdVKiptmMjxGzv8iQoo4MWjsP3QsTkhhxa").unwrap();
let commitment_config = CommitmentConfig::processed();
let config = RpcAccountInfoConfig {
    encoding: Some(UiAccountEncoding::Base64),
    commitment: Some(commitment_config),
    .. RpcAccountInfoConfig::default()
};
let account = rpc_client.get_account_with_config(
    &alice_pubkey,
    config,
)?;
assert!(account.value.is_some());

pub fn get_max_retransmit_slot(&self) -> ClientResult<Slot>

Get the max slot seen from retransmit stage.

RPC Reference

This method corresponds directly to the getMaxRetransmitSlot RPC method.

Examples

let slot = rpc_client.get_max_retransmit_slot()?;

pub fn get_max_shred_insert_slot(&self) -> ClientResult<Slot>

Get the max slot seen from after shred insert.

RPC Reference

This method corresponds directly to the getMaxShredInsertSlot RPC method.

Examples

let slot = rpc_client.get_max_shred_insert_slot()?;

pub fn get_multiple_accounts( &self, pubkeys: &[Pubkey] ) -> ClientResult<Vec<Option<Account>>>

Returns the account information for a list of pubkeys.

This method uses the configured commitment level.

RPC Reference

This method is built on the getMultipleAccounts RPC method.

Examples

let pubkeys = vec![alice.pubkey(), bob.pubkey()];
let accounts = rpc_client.get_multiple_accounts(&pubkeys)?;

pub fn get_multiple_accounts_with_commitment( &self, pubkeys: &[Pubkey], commitment_config: CommitmentConfig ) -> RpcResult<Vec<Option<Account>>>

Returns the account information for a list of pubkeys.

RPC Reference

This method is built on the getMultipleAccounts RPC method.

Examples

let pubkeys = vec![alice.pubkey(), bob.pubkey()];
let commitment_config = CommitmentConfig::processed();
let accounts = rpc_client.get_multiple_accounts_with_commitment(
    &pubkeys,
    commitment_config,
)?;

pub fn get_multiple_accounts_with_config( &self, pubkeys: &[Pubkey], config: RpcAccountInfoConfig ) -> RpcResult<Vec<Option<Account>>>

Returns the account information for a list of pubkeys.

RPC Reference

This method is built on the getMultipleAccounts RPC method.

Examples

let pubkeys = vec![alice.pubkey(), bob.pubkey()];
let commitment_config = CommitmentConfig::processed();
let config = RpcAccountInfoConfig {
    encoding: Some(UiAccountEncoding::Base64),
    commitment: Some(commitment_config),
    .. RpcAccountInfoConfig::default()
};
let accounts = rpc_client.get_multiple_accounts_with_config(
    &pubkeys,
    config,
)?;

pub fn get_account_data(&self, pubkey: &Pubkey) -> ClientResult<Vec<u8>>

Gets the raw data associated with an account.

This is equivalent to calling get_account and then accessing the data field of the returned Account.

RPC Reference

This method is built on the getAccountInfo RPC method.

Examples

let alice_pubkey = Pubkey::from_str("BgvYtJEfmZYdVKiptmMjxGzv8iQoo4MWjsP3QsTkhhxa").unwrap();
let account_data = rpc_client.get_account_data(&alice_pubkey)?;

pub fn get_minimum_balance_for_rent_exemption( &self, data_len: usize ) -> ClientResult<u64>

Returns minimum balance required to make an account with specified data length rent exempt.

RPC Reference

This method corresponds directly to the getMinimumBalanceForRentExemption RPC method.

Examples

let data_len = 300;
let balance = rpc_client.get_minimum_balance_for_rent_exemption(data_len)?;

pub fn get_balance(&self, pubkey: &Pubkey) -> ClientResult<u64>

Request the balance of the provided account pubkey.

This method uses the configured commitment level.

RPC Reference

This method corresponds directly to the getBalance RPC method.

Examples

let balance = rpc_client.get_balance(&alice.pubkey())?;

pub fn get_balance_with_commitment( &self, pubkey: &Pubkey, commitment_config: CommitmentConfig ) -> RpcResult<u64>

Request the balance of the provided account pubkey.

RPC Reference

This method corresponds directly to the getBalance RPC method.

Examples

let commitment_config = CommitmentConfig::processed();
let balance = rpc_client.get_balance_with_commitment(
    &alice.pubkey(),
    commitment_config,
)?;

pub fn get_program_accounts( &self, pubkey: &Pubkey ) -> ClientResult<Vec<(Pubkey, Account)>>

Returns all accounts owned by the provided program pubkey.

This method uses the configured commitment level.

RPC Reference

This method corresponds directly to the getProgramAccounts RPC method.

Examples

let accounts = rpc_client.get_program_accounts(&alice.pubkey())?;

pub fn get_program_accounts_with_config( &self, pubkey: &Pubkey, config: RpcProgramAccountsConfig ) -> ClientResult<Vec<(Pubkey, Account)>>

Returns all accounts owned by the provided program pubkey.

RPC Reference

This method is built on the getProgramAccounts RPC method.

Examples

let memcmp = RpcFilterType::Memcmp(Memcmp {
    offset: 0,
    bytes: MemcmpEncodedBytes::Base64(base64_bytes.to_string()),
    encoding: None,
});
let config = RpcProgramAccountsConfig {
    filters: Some(vec![
        RpcFilterType::DataSize(128),
        memcmp,
    ]),
    account_config: RpcAccountInfoConfig {
        encoding: Some(UiAccountEncoding::Base64),
        data_slice: Some(UiDataSliceConfig {
            offset: 0,
            length: 5,
        }),
        commitment: Some(CommitmentConfig::processed()),
        min_context_slot: Some(1234),
    },
    with_context: Some(false),
};
let accounts = rpc_client.get_program_accounts_with_config(
    &alice.pubkey(),
    config,
)?;

pub fn get_stake_minimum_delegation(&self) -> ClientResult<u64>

Returns the stake minimum delegation, in lamports.

RPC Reference

This method corresponds directly to the getStakeMinimumDelegation RPC method.

Examples

let stake_minimum_delegation = rpc_client.get_stake_minimum_delegation()?;

pub fn get_stake_minimum_delegation_with_commitment( &self, commitment_config: CommitmentConfig ) -> ClientResult<u64>

Returns the stake minimum delegation, in lamports, based on the commitment level.

RPC Reference

This method corresponds directly to the getStakeMinimumDelegation RPC method.

Examples

let stake_minimum_delegation =
rpc_client.get_stake_minimum_delegation_with_commitment(CommitmentConfig::confirmed())?;

pub fn get_transaction_count(&self) -> ClientResult<u64>

Request the transaction count.

pub fn get_transaction_count_with_commitment( &self, commitment_config: CommitmentConfig ) -> ClientResult<u64>

pub fn get_fees(&self) -> ClientResult<Fees>

👎Deprecated since 1.9.0: Please use get_latest_blockhash and get_fee_for_message instead

pub fn get_fees_with_commitment( &self, commitment_config: CommitmentConfig ) -> RpcResult<Fees>

👎Deprecated since 1.9.0: Please use get_latest_blockhash_with_commitment and get_fee_for_message instead

pub fn get_recent_blockhash(&self) -> ClientResult<(Hash, FeeCalculator)>

👎Deprecated since 1.9.0: Please use get_latest_blockhash instead

pub fn get_recent_blockhash_with_commitment( &self, commitment_config: CommitmentConfig ) -> RpcResult<(Hash, FeeCalculator, Slot)>

👎Deprecated since 1.9.0: Please use get_latest_blockhash_with_commitment instead

pub fn get_fee_calculator_for_blockhash( &self, blockhash: &Hash ) -> ClientResult<Option<FeeCalculator>>

👎Deprecated since 1.9.0: Please get_fee_for_message instead

pub fn get_fee_calculator_for_blockhash_with_commitment( &self, blockhash: &Hash, commitment_config: CommitmentConfig ) -> RpcResult<Option<FeeCalculator>>

👎Deprecated since 1.9.0: Please get_latest_blockhash_with_commitment and get_fee_for_message instead

pub fn get_fee_rate_governor(&self) -> RpcResult<FeeRateGovernor>

👎Deprecated since 1.9.0: Please do not use, will no longer be available in the future

pub fn get_new_blockhash( &self, blockhash: &Hash ) -> ClientResult<(Hash, FeeCalculator)>

👎Deprecated since 1.9.0: Please do not use, will no longer be available in the future

pub fn get_first_available_block(&self) -> ClientResult<Slot>

pub fn get_genesis_hash(&self) -> ClientResult<Hash>

pub fn get_health(&self) -> ClientResult<()>

pub fn get_token_account( &self, pubkey: &Pubkey ) -> ClientResult<Option<UiTokenAccount>>

pub fn get_token_account_with_commitment( &self, pubkey: &Pubkey, commitment_config: CommitmentConfig ) -> RpcResult<Option<UiTokenAccount>>

pub fn get_token_account_balance( &self, pubkey: &Pubkey ) -> ClientResult<UiTokenAmount>

pub fn get_token_account_balance_with_commitment( &self, pubkey: &Pubkey, commitment_config: CommitmentConfig ) -> RpcResult<UiTokenAmount>

pub fn get_token_accounts_by_delegate( &self, delegate: &Pubkey, token_account_filter: TokenAccountsFilter ) -> ClientResult<Vec<RpcKeyedAccount>>

pub fn get_token_accounts_by_delegate_with_commitment( &self, delegate: &Pubkey, token_account_filter: TokenAccountsFilter, commitment_config: CommitmentConfig ) -> RpcResult<Vec<RpcKeyedAccount>>

pub fn get_token_accounts_by_owner( &self, owner: &Pubkey, token_account_filter: TokenAccountsFilter ) -> ClientResult<Vec<RpcKeyedAccount>>

pub fn get_token_accounts_by_owner_with_commitment( &self, owner: &Pubkey, token_account_filter: TokenAccountsFilter, commitment_config: CommitmentConfig ) -> RpcResult<Vec<RpcKeyedAccount>>

pub fn get_token_supply(&self, mint: &Pubkey) -> ClientResult<UiTokenAmount>

pub fn get_token_supply_with_commitment( &self, mint: &Pubkey, commitment_config: CommitmentConfig ) -> RpcResult<UiTokenAmount>

pub fn request_airdrop( &self, pubkey: &Pubkey, lamports: u64 ) -> ClientResult<Signature>

pub fn request_airdrop_with_blockhash( &self, pubkey: &Pubkey, lamports: u64, recent_blockhash: &Hash ) -> ClientResult<Signature>

pub fn request_airdrop_with_config( &self, pubkey: &Pubkey, lamports: u64, config: RpcRequestAirdropConfig ) -> ClientResult<Signature>

pub fn poll_get_balance_with_commitment( &self, pubkey: &Pubkey, commitment_config: CommitmentConfig ) -> ClientResult<u64>

pub fn wait_for_balance_with_commitment( &self, pubkey: &Pubkey, expected_balance: Option<u64>, commitment_config: CommitmentConfig ) -> Option<u64>

pub fn poll_for_signature(&self, signature: &Signature) -> ClientResult<()>

Poll the server to confirm a transaction.

pub fn poll_for_signature_with_commitment( &self, signature: &Signature, commitment_config: CommitmentConfig ) -> ClientResult<()>

Poll the server to confirm a transaction.

pub fn poll_for_signature_confirmation( &self, signature: &Signature, min_confirmed_blocks: usize ) -> ClientResult<usize>

Poll the server to confirm a transaction.

pub fn get_num_blocks_since_signature_confirmation( &self, signature: &Signature ) -> ClientResult<usize>

pub fn get_latest_blockhash(&self) -> ClientResult<Hash>

pub fn get_latest_blockhash_with_commitment( &self, commitment: CommitmentConfig ) -> ClientResult<(Hash, u64)>

pub fn is_blockhash_valid( &self, blockhash: &Hash, commitment: CommitmentConfig ) -> ClientResult<bool>

pub fn get_fee_for_message( &self, message: &impl SerializableMessage ) -> ClientResult<u64>

pub fn get_new_latest_blockhash(&self, blockhash: &Hash) -> ClientResult<Hash>

pub fn get_transport_stats(&self) -> RpcTransportStats

Trait Implementations

impl Drop for RpcClient

fn drop(&mut self)

Executes the destructor for this type.