solana_sdk/
client.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
//! Defines traits for blocking (synchronous) and non-blocking (asynchronous)
//! communication with a Solana server as well a a trait that encompasses both.
//!
//! //! Synchronous implementations are expected to create transactions, sign them, and send
//! them with multiple retries, updating blockhashes and resigning as-needed.
//!
//! Asynchronous implementations are expected to create transactions, sign them, and send
//! them but without waiting to see if the server accepted it.

#![cfg(feature = "full")]

use crate::{
    account::Account,
    clock::Slot,
    commitment_config::CommitmentConfig,
    epoch_info::EpochInfo,
    fee_calculator::{FeeCalculator, FeeRateGovernor},
    hash::Hash,
    instruction::Instruction,
    message::Message,
    pubkey::Pubkey,
    signature::{Keypair, Signature},
    signer::Signer,
    signers::Signers,
    system_instruction,
    transaction::{self, Transaction, VersionedTransaction},
    transport::Result,
};

pub trait Client: SyncClient + AsyncClient {
    fn tpu_addr(&self) -> String;
}

pub trait SyncClient {
    /// Create a transaction from the given message, and send it to the
    /// server, retrying as-needed.
    fn send_and_confirm_message<T: Signers + ?Sized>(
        &self,
        keypairs: &T,
        message: Message,
    ) -> Result<Signature>;

    /// Create a transaction from a single instruction that only requires
    /// a single signer. Then send it to the server, retrying as-needed.
    fn send_and_confirm_instruction(
        &self,
        keypair: &Keypair,
        instruction: Instruction,
    ) -> Result<Signature>;

    /// Transfer lamports from `keypair` to `pubkey`, retrying until the
    /// transfer completes or produces and error.
    fn transfer_and_confirm(
        &self,
        lamports: u64,
        keypair: &Keypair,
        pubkey: &Pubkey,
    ) -> Result<Signature>;

    /// Get an account or None if not found.
    fn get_account_data(&self, pubkey: &Pubkey) -> Result<Option<Vec<u8>>>;

    /// Get an account or None if not found.
    fn get_account(&self, pubkey: &Pubkey) -> Result<Option<Account>>;

    /// Get an account or None if not found. Uses explicit commitment configuration.
    fn get_account_with_commitment(
        &self,
        pubkey: &Pubkey,
        commitment_config: CommitmentConfig,
    ) -> Result<Option<Account>>;

    /// Get account balance or 0 if not found.
    fn get_balance(&self, pubkey: &Pubkey) -> Result<u64>;

    /// Get account balance or 0 if not found. Uses explicit commitment configuration.
    fn get_balance_with_commitment(
        &self,
        pubkey: &Pubkey,
        commitment_config: CommitmentConfig,
    ) -> Result<u64>;

    fn get_minimum_balance_for_rent_exemption(&self, data_len: usize) -> Result<u64>;

    /// Get recent blockhash
    #[deprecated(since = "1.9.0", note = "Please use `get_latest_blockhash` instead")]
    fn get_recent_blockhash(&self) -> Result<(Hash, FeeCalculator)>;

    /// Get recent blockhash. Uses explicit commitment configuration.
    #[deprecated(
        since = "1.9.0",
        note = "Please use `get_latest_blockhash_with_commitment` and `get_latest_blockhash_with_commitment` instead"
    )]
    fn get_recent_blockhash_with_commitment(
        &self,
        commitment_config: CommitmentConfig,
    ) -> Result<(Hash, FeeCalculator, Slot)>;

    /// Get `Some(FeeCalculator)` associated with `blockhash` if it is still in
    /// the BlockhashQueue`, otherwise `None`
    #[deprecated(
        since = "1.9.0",
        note = "Please use `get_fee_for_message` or `is_blockhash_valid` instead"
    )]
    fn get_fee_calculator_for_blockhash(&self, blockhash: &Hash) -> Result<Option<FeeCalculator>>;

    /// Get recent fee rate governor
    #[deprecated(
        since = "1.9.0",
        note = "Please do not use, will no longer be available in the future"
    )]
    fn get_fee_rate_governor(&self) -> Result<FeeRateGovernor>;

    /// Get signature status.
    fn get_signature_status(
        &self,
        signature: &Signature,
    ) -> Result<Option<transaction::Result<()>>>;

    /// Get signature status. Uses explicit commitment configuration.
    fn get_signature_status_with_commitment(
        &self,
        signature: &Signature,
        commitment_config: CommitmentConfig,
    ) -> Result<Option<transaction::Result<()>>>;

    /// Get last known slot
    fn get_slot(&self) -> Result<Slot>;

    /// Get last known slot. Uses explicit commitment configuration.
    fn get_slot_with_commitment(&self, commitment_config: CommitmentConfig) -> Result<u64>;

    /// Get transaction count
    fn get_transaction_count(&self) -> Result<u64>;

    /// Get transaction count. Uses explicit commitment configuration.
    fn get_transaction_count_with_commitment(
        &self,
        commitment_config: CommitmentConfig,
    ) -> Result<u64>;

    fn get_epoch_info(&self) -> Result<EpochInfo>;

    /// Poll until the signature has been confirmed by at least `min_confirmed_blocks`
    fn poll_for_signature_confirmation(
        &self,
        signature: &Signature,
        min_confirmed_blocks: usize,
    ) -> Result<usize>;

    /// Poll to confirm a transaction.
    fn poll_for_signature(&self, signature: &Signature) -> Result<()>;

    #[deprecated(
        since = "1.9.0",
        note = "Please do not use, will no longer be available in the future"
    )]
    fn get_new_blockhash(&self, blockhash: &Hash) -> Result<(Hash, FeeCalculator)>;

    /// Get last known blockhash
    fn get_latest_blockhash(&self) -> Result<Hash>;

    /// Get latest blockhash with last valid block height. Uses explicit commitment configuration.
    fn get_latest_blockhash_with_commitment(
        &self,
        commitment_config: CommitmentConfig,
    ) -> Result<(Hash, u64)>;

    /// Check if the blockhash is valid
    fn is_blockhash_valid(&self, blockhash: &Hash, commitment: CommitmentConfig) -> Result<bool>;

    /// Calculate the fee for a `Message`
    fn get_fee_for_message(&self, message: &Message) -> Result<u64>;
}

pub trait AsyncClient {
    /// Send a signed transaction, but don't wait to see if the server accepted it.
    fn async_send_transaction(&self, transaction: Transaction) -> Result<Signature> {
        self.async_send_versioned_transaction(transaction.into())
    }

    /// Send a batch of signed transactions without confirmation.
    fn async_send_batch(&self, transactions: Vec<Transaction>) -> Result<()> {
        let transactions = transactions.into_iter().map(Into::into).collect();
        self.async_send_versioned_transaction_batch(transactions)
    }

    /// Send a signed versioned transaction, but don't wait to see if the server accepted it.
    fn async_send_versioned_transaction(
        &self,
        transaction: VersionedTransaction,
    ) -> Result<Signature>;

    /// Send a batch of signed versioned transactions without confirmation.
    fn async_send_versioned_transaction_batch(
        &self,
        transactions: Vec<VersionedTransaction>,
    ) -> Result<()> {
        for t in transactions {
            self.async_send_versioned_transaction(t)?;
        }
        Ok(())
    }

    /// Create a transaction from the given message, and send it to the
    /// server, but don't wait for to see if the server accepted it.
    fn async_send_message<T: Signers + ?Sized>(
        &self,
        keypairs: &T,
        message: Message,
        recent_blockhash: Hash,
    ) -> Result<Signature> {
        let transaction = Transaction::new(keypairs, message, recent_blockhash);
        self.async_send_transaction(transaction)
    }

    /// Create a transaction from a single instruction that only requires
    /// a single signer. Then send it to the server, but don't wait for a reply.
    fn async_send_instruction(
        &self,
        keypair: &Keypair,
        instruction: Instruction,
        recent_blockhash: Hash,
    ) -> Result<Signature> {
        let message = Message::new(&[instruction], Some(&keypair.pubkey()));
        self.async_send_message(&[keypair], message, recent_blockhash)
    }

    /// Attempt to transfer lamports from `keypair` to `pubkey`, but don't wait to confirm.
    fn async_transfer(
        &self,
        lamports: u64,
        keypair: &Keypair,
        pubkey: &Pubkey,
        recent_blockhash: Hash,
    ) -> Result<Signature> {
        let transfer_instruction =
            system_instruction::transfer(&keypair.pubkey(), pubkey, lamports);
        self.async_send_instruction(keypair, transfer_instruction, recent_blockhash)
    }
}