Sync Native

Sincronizza SOL nativo

Il Wrapped SOL (WSOL) è un token account che tiene traccia della quantità di lamport nell'account come saldo del token. WSOL consente l'integrazione con i protocolli DeFi per trasferire SOL come token SPL.

L'istruzione SyncNative sincronizza il saldo di un token account wrapped SOL (WSOL) con il SOL (lamport) effettivamente memorizzato in esso. Quando trasferisci SOL nativo a un token account WSOL, il saldo del token non si aggiorna automaticamente. Devi chiamare SyncNative per visualizzare il saldo WSOL corretto.

Il Token Program e il Token Extension Program condividono implementazioni simili per ottenere la stessa funzionalità.

Typescript

import {
airdropFactory,
appendTransactionMessageInstructions,
createSolanaRpc,
createSolanaRpcSubscriptions,
createTransactionMessage,
generateKeyPairSigner,
getSignatureFromTransaction,
lamports,
pipe,
sendAndConfirmTransactionFactory,
setTransactionMessageFeePayerSigner,
setTransactionMessageLifetimeUsingBlockhash,
signTransactionMessageWithSigners,
address
} from "@solana/kit";
import { getTransferSolInstruction } from "@solana-program/system";
import {
getCreateAssociatedTokenInstructionAsync,
TOKEN_PROGRAM_ADDRESS,
findAssociatedTokenPda,
getSyncNativeInstruction
} from "@solana-program/token";
// Create Connection, local validator in this example
const rpc = createSolanaRpc("http://localhost:8899");
const rpcSubscriptions = createSolanaRpcSubscriptions("ws://localhost:8900");
// Generate keypairs for fee payer
const feePayer = await generateKeyPairSigner();
// Fund fee payer
await airdropFactory({ rpc, rpcSubscriptions })({
recipientAddress: feePayer.address,
lamports: lamports(2_000_000_000n),
commitment: "confirmed"
});
// Native mint (Wrapped SOL) address
const NATIVE_MINT = address("So11111111111111111111111111111111111111112");
// Use findAssociatedTokenPda to derive the ATA address for WSOL
const [associatedTokenAddress] = await findAssociatedTokenPda({
mint: NATIVE_MINT,
owner: feePayer.address,
tokenProgram: TOKEN_PROGRAM_ADDRESS
});
// Get latest blockhash to include in transaction
const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();
// Create instruction to create the WSOL associated token account
const createAtaInstruction = await getCreateAssociatedTokenInstructionAsync({
payer: feePayer,
mint: NATIVE_MINT,
owner: feePayer.address
});
// Amount to wrap (1 SOL = 1,000,000,000 lamports)
const amountToSync = 1_000_000_000n;
// Create instruction to transfer SOL to the WSOL token account
const transferSolInstruction = getTransferSolInstruction({
source: feePayer,
destination: associatedTokenAddress,
amount: amountToSync
});
// Create instruction to sync native SOL balance with WSOL token balance
const syncNativeInstruction = getSyncNativeInstruction({
account: associatedTokenAddress
});
const instructions = [
createAtaInstruction,
transferSolInstruction,
syncNativeInstruction
];
// Create transaction message
const transactionMessage = pipe(
createTransactionMessage({ version: 0 }),
(tx) => setTransactionMessageFeePayerSigner(feePayer, tx),
(tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),
(tx) => appendTransactionMessageInstructions(instructions, tx)
);
// Sign transaction message with all required signers
const signedTransaction =
await signTransactionMessageWithSigners(transactionMessage);
// Send and confirm transaction
await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(
signedTransaction,
{ commitment: "confirmed" }
);
// Get transaction signature
const transactionSignature = getSignatureFromTransaction(signedTransaction);
console.log("Fee Payer Address:", feePayer.address.toString());
console.log("WSOL Token Account Address:", associatedTokenAddress.toString());
console.log("Successfully wrapped 1.0 SOL into WSOL");
console.log("Transaction Signature:", transactionSignature);
Console
Click to execute the code.

Rust

use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_sdk::{
commitment_config::CommitmentConfig,
signature::{Keypair, Signer},
system_instruction::transfer as sol_transfer,
transaction::Transaction,
};
use spl_associated_token_account::{
get_associated_token_address_with_program_id, instruction::create_associated_token_account,
};
use spl_token::{
id as token_program_id,
instruction::sync_native,
native_mint::ID as NATIVE_MINT_ID,
};
#[tokio::main]
async fn main() -> Result<()> {
// Create connection to local validator
let client = RpcClient::new_with_commitment(
String::from("http://localhost:8899"),
CommitmentConfig::confirmed(),
);
let recent_blockhash = client.get_latest_blockhash().await?;
// Generate a new keypair for the fee payer
let fee_payer = Keypair::new();
// Airdrop 2 SOL to fee payer
let airdrop_signature = client
.request_airdrop(&fee_payer.pubkey(), 2_000_000_000)
.await?;
client.confirm_transaction(&airdrop_signature).await?;
loop {
let confirmed = client.confirm_transaction(&airdrop_signature).await?;
if confirmed {
break;
}
}
// Calculate the associated token account address for WSOL
let associated_token_address = get_associated_token_address_with_program_id(
&fee_payer.pubkey(), // owner
&NATIVE_MINT_ID, // mint (Wrapped SOL)
&token_program_id(), // program_id
);
// Instruction to create associated token account for WSOL
let create_ata_instruction = create_associated_token_account(
&fee_payer.pubkey(), // funding address
&fee_payer.pubkey(), // wallet address
&NATIVE_MINT_ID, // mint address
&token_program_id(), // program id
);
// Amount to wrap (1 SOL = 1,000,000,000 lamports)
let amount = 1_000_000_000;
// Create transfer instruction to send SOL to the WSOL token account
let transfer_instruction = sol_transfer(
&fee_payer.pubkey(),
&associated_token_address,
amount
);
// Create sync native instruction to update WSOL balance
let sync_native_instruction = sync_native(
&token_program_id(),
&associated_token_address
)?;
// Create transaction and add instructions
let transaction = Transaction::new_signed_with_payer(
&[
create_ata_instruction,
transfer_instruction,
sync_native_instruction,
],
Some(&fee_payer.pubkey()),
&[&fee_payer],
recent_blockhash,
);
// Send and confirm transaction
let transactionSignature = client.send_and_confirm_transaction(&transaction).await?;
println!("Fee Payer Address: {}", fee_payer.pubkey());
println!(
"WSOL Token Account Address: {}",
associated_token_address
);
println!("Successfully wrapped 1.0 SOL into WSOL");
println!("Transaction Signature: {}", transactionSignature);
Ok(())
}
Console
Click to execute the code.

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