Sync Native

O Que É SOL Encapsulado?

SOL Encapsulado (WSOL) é SOL mantido em uma token account do Token Program para o mint nativo. O mint nativo é o endereço de mint que o Token Program usa para contas de token que encapsulam SOL. O mint nativo permite que SOL seja usado através das instruções do Token Program.

ProgramaEndereço do mint nativo
Token ProgramSo11111111111111111111111111111111111111112
Token Extensions Program9pan9bMn5HatX4EJdBwg9VgCa7Uz5HL8N1m5D3NdXejP

Uma token account de SOL encapsulado armazena SOL no campo lamports da conta, mas rastreia o SOL mantido na token account de SOL encapsulado como um saldo de token através do campo amount da conta de token. Se você transferir SOL para uma token account de SOL encapsulado, o saldo em lamports aumenta imediatamente, mas o campo amount de token não muda até que você chame a instrução SyncNative do Token Program.

Como Sincronizar SOL Nativo

Use a instrução SyncNative do Token Program após transferir SOL para uma token account de SOL encapsulado. A instrução SyncNative atualiza o campo amount da conta de token para corresponder aos lamports mantidos na conta acima de sua reserva isenta de aluguel.

Referência de Origem

ItemDescriçãoToken ProgramToken Extensions Program
AccountO estado da conta de token usa is_native para marcar a conta como WSOL e armazena a reserva nativa, o saldo mínimo em lamports isento de aluguel que a conta deve manter, e o valor do token rastreado.OrigemOrigem
SyncNativeUma instrução que atualiza o campo amount de uma token account de SOL encapsulado para corresponder aos lamports mantidos na conta acima de sua reserva isenta de aluguel.OrigemOrigem
process_sync_nativeLógica compartilhada do processador para sincronização de saldos de SOL encapsulado.OrigemOrigem

Typescript

Os exemplos abaixo mostram a abordagem recomendada usando @solana/kit. Exemplos legados usando @solana/web3.js estão incluídos para referência.

Kit

import { address } from "@solana/kit";
import { createLocalClient } from "@solana/kit-client-rpc";
import { systemProgram } from "@solana-program/system";
import {
findAssociatedTokenPda,
getCreateAssociatedTokenInstructionAsync,
tokenProgram,
TOKEN_PROGRAM_ADDRESS
} from "@solana-program/token";
const client = await createLocalClient()
.use(systemProgram())
.use(tokenProgram());
const NATIVE_MINT = address("So11111111111111111111111111111111111111112");
const [tokenAccount] = await findAssociatedTokenPda({
mint: NATIVE_MINT,
owner: client.payer.address,
tokenProgram: TOKEN_PROGRAM_ADDRESS
});
const result = await client.sendTransaction([
client.system.instructions.transferSol({
source: client.payer, // Account sending the SOL to wrap.
destination: tokenAccount, // WSOL token account receiving the SOL.
amount: 1_000_000n // SOL amount in lamports.
}),
client.token.instructions.syncNative({
account: tokenAccount // WSOL token account to synchronize.
})
]);
const tokenAccountData = await client.token.accounts.token.fetch(tokenAccount);
console.log("WSOL Token Account Address:", tokenAccount);
console.log("WSOL Token Account:", tokenAccountData.data);
console.log("\nTransaction Signature:", result.context.signature);
Console
Click to execute the code.

Web3.js

import {
Connection,
Keypair,
sendAndConfirmTransaction,
LAMPORTS_PER_SOL,
SystemProgram,
Transaction
} from "@solana/web3.js";
import {
createAssociatedTokenAccount,
getAccount,
NATIVE_MINT,
syncNative,
TOKEN_PROGRAM_ID
} from "@solana/spl-token";
const result = await syncNative(
connection,
feePayer, // Account paying transaction fees.
associatedTokenAccount, // WSOL token account to synchronize.
{
commitment: "confirmed"
},
TOKEN_PROGRAM_ID // Token program to invoke.
);
const tokenAccountData = await getAccount(
connection,
associatedTokenAccount,
"confirmed",
TOKEN_PROGRAM_ID
);
console.log("WSOL Token Account Address:", associatedTokenAccount.toBase58());
console.log("WSOL Token Account:", tokenAccountData);
console.log("\nTransaction Signature:", result);
Console
Click to execute the code.

Rust

Rust
use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;
use solana_sdk::{
program_pack::Pack,
signature::{Keypair, Signer},
transaction::Transaction,
};
use solana_system_interface::instruction::transfer;
use spl_associated_token_account_interface::{
address::get_associated_token_address, instruction::create_associated_token_account,
};
use spl_token_interface::{
id as token_program_id,
instruction::sync_native,
native_mint::ID as NATIVE_MINT_ID,
state::Account,
};
#[tokio::main]
async fn main() -> Result<()> {
let client = RpcClient::new_with_commitment(
String::from("http://localhost:8899"),
CommitmentConfig::confirmed(),
);
let associated_token_address = get_associated_token_address(&fee_payer.pubkey(), &NATIVE_MINT_ID);
let sync_amount = 1_000_000;
let transaction = Transaction::new_signed_with_payer(
&[
transfer(
&fee_payer.pubkey(), // Account sending the SOL to wrap.
&associated_token_address, // WSOL token account receiving the SOL.
sync_amount, // SOL amount in lamports.
),
sync_native(
&token_program_id(), // Token program to invoke.
&associated_token_address, // WSOL token account to synchronize.
)?,
],
Some(&fee_payer.pubkey()),
&[&fee_payer],
latest_blockhash,
);
let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;
let token_account = client.get_account(&associated_token_address).await?;
let token_data = Account::unpack(&token_account.data)?;
println!("WSOL Token Account Address: {}", associated_token_address);
println!("WSOL Token Account: {:#?}", token_data);
println!("\nTransaction Signature: {}", transaction_signature);
Ok(())
}
Console
Click to execute the code.

Python

Python
#!/usr/bin/env python3
import asyncio
import json
from solana.rpc.async_api import AsyncClient
from solders.keypair import Keypair
from solders.message import Message
from solders.pubkey import Pubkey
from solders.transaction import Transaction
from solders.system_program import transfer, TransferParams
from spl.token.async_client import AsyncToken
from spl.token.instructions import (
create_associated_token_account,
get_associated_token_address,
sync_native,
SyncNativeParams,
)
from spl.token.constants import TOKEN_PROGRAM_ID, WRAPPED_SOL_MINT
AMOUNT_TO_WRAP = 1_000_000
async def main():
rpc = AsyncClient("http://localhost:8899")
async with rpc:
sync_native_instructions = [
transfer(
TransferParams(
from_pubkey=fee_payer.pubkey(), # Account sending SOL to the wrapped SOL token account.
to_pubkey=wrapped_sol_account, # Wrapped SOL token account receiving the lamports.
lamports=AMOUNT_TO_WRAP, # Lamports to wrap as WSOL.
)
),
sync_native(
SyncNativeParams(
program_id=TOKEN_PROGRAM_ID, # Token program to invoke.
account=wrapped_sol_account, # Wrapped SOL token account whose amount field updates.
)
),
]
latest_blockhash = await rpc.get_latest_blockhash()
transaction = Transaction(
[fee_payer],
Message(sync_native_instructions, fee_payer.pubkey()),
latest_blockhash.value.blockhash,
)
result = await rpc.send_transaction(transaction)
token_account_info = await token.get_account_info(wrapped_sol_account)
token_account = {
key: str(value) if isinstance(value, Pubkey) else value
for key, value in token_account_info._asdict().items()
}
print("Native Mint Address:", WRAPPED_SOL_MINT)
print("\nWrapped SOL Token Account Address:", wrapped_sol_account)
print("Token Account:")
print(json.dumps(token_account, indent=2))
print("\nTransaction Signature:", result.value)
if __name__ == "__main__":
asyncio.run(main())
Console
Click to execute the code.

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