Struct DriftClientBackend

pub struct DriftClientBackend { /* private fields */ }

Provides the heavy-lifting and network facing features of the SDK It is intended to be a singleton

Implementations

impl DriftClientBackend

pub fn is_grpc_subscribed(&self) -> bool

Returns true if DriftClientBackend is subscribed via gRPC

pub fn try_get_perp_market_account_and_slot( &self, market_index: u16, ) -> Option<DataAndSlot<PerpMarket>>

pub fn try_get_spot_market_account_and_slot( &self, market_index: u16, ) -> Option<DataAndSlot<SpotMarket>>

pub fn try_get_oracle_price_data_and_slot( &self, market: MarketId, ) -> Option<Oracle>

pub fn try_get_oracle_price_data_and_slot_checked( &self, market: MarketId, ) -> Option<Oracle>

Same as try_get_oracle_price_data_and_slot but checks the oracle pubkey has not changed this can be useful if the oracle address changes in the program

pub async fn get_account<T: AccountDeserialize>( &self, account: &Pubkey, ) -> SdkResult<T>

Fetch account as an Anchor account type T

pub async fn get_account_with_slot<T: AccountDeserialize>( &self, account: &Pubkey, ) -> SdkResult<DataAndSlot<T>>

Fetch account as an Anchor account type T along with the retrieved slot

pub async fn get_user_account(&self, account: &Pubkey) -> SdkResult<User>

Fetch account as a drift User account

uses latest cached if subscribed, otherwise falls back to network query

pub fn try_get_account<T: AccountDeserialize>( &self, account: &Pubkey, ) -> SdkResult<T>

Try to fetch account as T using latest local value requires account was previously subscribed too.

pub async fn get_latest_blockhash(&self) -> SdkResult<Hash>

Returns latest blockhash

uses latest cached if subscribed, otherwise falls back to network query

pub async fn sign_and_send( &self, wallet: &Wallet, tx: VersionedMessage, recent_block_hash: Hash, ) -> SdkResult<Signature>

Sign and send a tx to the network

Returns the signature on success

pub async fn sign_and_send_with_config( &self, wallet: &Wallet, tx: VersionedMessage, recent_block_hash: Hash, config: RpcSendTransactionConfig, ) -> SdkResult<Signature>

Sign and send a tx to the network with custom send config allows setting commitment level, retries, etc.

Returns the signature on success

pub async fn oracle_price(&self, market: MarketId) -> SdkResult<i64>

Fetch the live oracle price for market

Uses latest local value from an OracleMap if subscribed, falls back to network query

pub async fn get_oracle(&self, market: MarketId) -> SdkResult<Oracle>

Fetch live oracle data for market

Uses latest local value from an OracleMap if subscribed, falls back to network query