¿Qué Hace la Acuñación?
La acuñación crea nuevas unidades de un token existente y aumenta el suministro total del mint.
Solo la autoridad de acuñación puede acuñar nuevos tokens. La cuenta de tokens de destino debe existir previamente y debe pertenecer al mismo mint.
Cómo Acuñar Tokens
La acuñación de tokens utiliza la instrucción MintTo o MintToChecked
del Token Program.
Los ejemplos a continuación utilizan MintToChecked, que requiere que el
llamador proporcione los decimales del mint para que la instrucción pueda
verificar la precisión esperada del token antes de acuñar.
El native mint no admite acuñación.
Referencia del Código Fuente
| Elemento | Descripción | Token Program | Token Extensions Program |
|---|---|---|---|
Mint | El estado del mint almacena la autoridad de acuñación y el suministro total de tokens. | Fuente | Fuente |
Account | El estado de la cuenta de tokens almacena el saldo de destino actualizado por la acuñación. | Fuente | Fuente |
MintTo | Una instrucción de acuñación que acuña tokens a una cuenta de tokens existente sin requerir que el llamador proporcione los decimales del mint. | Fuente | Fuente |
MintToChecked | Una instrucción de acuñación que requiere que el llamador proporcione los decimales del mint y verifica ese valor antes de acuñar tokens a una cuenta de tokens existente. | Fuente | Fuente |
process_mint_to | Lógica de procesador compartida para acuñar tokens. | Fuente | Fuente |
Typescript
Los ejemplos Kit a continuación muestran el enfoque recomendado usando
@solana/kit. Se incluyen ejemplos heredados usando @solana/web3.js como
referencia.
Kit
import { generateKeyPairSigner } from "@solana/kit";import { createLocalClient } from "@solana/kit-client-rpc";import {findAssociatedTokenPda,tokenProgram,TOKEN_PROGRAM_ADDRESS} from "@solana-program/token";const client = await createLocalClient().use(tokenProgram());const mint = await generateKeyPairSigner();const result = await client.token.instructions.mintToATA({mint: mint.address, // Mint for the token being minted.owner: client.payer.address, // Account that owns the token account receiving the minted tokens.mintAuthority: client.payer, // Authority allowed to mint new tokens.amount: 100n, // Token amount in base units.decimals: 2 // Decimals defined on the mint account.}).sendTransaction();const [tokenAccount] = await findAssociatedTokenPda({mint: mint.address,owner: client.payer.address,tokenProgram: TOKEN_PROGRAM_ADDRESS});const mintAccount = await client.token.accounts.mint.fetch(mint.address);const tokenAccountData = await client.token.accounts.token.fetch(tokenAccount);console.log("Mint Address:", mint.address);console.log("Mint Account:", mintAccount.data);console.log("\nToken Account Address:", tokenAccount);console.log("Token Account:", tokenAccountData.data);console.log("\nTransaction Signature:", result.context.signature);
Web3.js
import { Connection, Keypair, LAMPORTS_PER_SOL } from "@solana/web3.js";import {createAssociatedTokenAccount,createMint,getAccount,getMint,mintToChecked,TOKEN_PROGRAM_ID} from "@solana/spl-token";const result = await mintToChecked(connection, // Connection to the local validator.feePayer, // Account paying transaction fees.mintPubkey, // Mint for the token being minted.associatedTokenAccount, // Token account receiving the minted tokens.feePayer, // Authority allowed to mint new tokens.100, // Token amount in base units.2, // Decimals defined on the mint account.[], // Additional multisig signers.{commitment: "confirmed" // Confirmation options for the transaction.},TOKEN_PROGRAM_ID // Token program to invoke.);const mintAccount = await getMint(connection,mintPubkey,"confirmed",TOKEN_PROGRAM_ID);const tokenAccountData = await getAccount(connection,associatedTokenAccount,"confirmed",TOKEN_PROGRAM_ID);console.log("Mint Address:", mintPubkey.toBase58());console.log("Mint Account:", mintAccount);console.log("\nAssociated Token Account Address:",associatedTokenAccount.toBase58());console.log("Associated Token Account:", tokenAccountData);console.log("\nTransaction Signature:", result);
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::create_account;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::{initialize_mint, mint_to_checked},state::{Account, Mint},};#[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(), &mint.pubkey());let mint_amount = 100;let transaction = Transaction::new_signed_with_payer(&[mint_to_checked(&token_program_id(), // Token program to invoke.&mint.pubkey(), // Mint for the token being minted.&associated_token_address, // Token account receiving the minted tokens.&fee_payer.pubkey(), // Authority allowed to mint new tokens.&[], // Additional multisig signers.mint_amount, // Token amount in base units.decimals, // Decimals defined on the mint account.)?,],Some(&fee_payer.pubkey()),&[&fee_payer],latest_blockhash,);let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;let mint_account = client.get_account(&mint.pubkey()).await?;let mint_data = Mint::unpack(&mint_account.data)?;let token_account = client.get_account(&associated_token_address).await?;let token_data = Account::unpack(&token_account.data)?;println!("Mint Address: {}", mint.pubkey());println!("Mint Account: {:#?}", mint_data);println!("\nAssociated Token Account Address: {}",associated_token_address);println!("Associated Token Account: {:#?}", token_data);println!("\nTransaction Signature: {}", transaction_signature);Ok(())}
Python
#!/usr/bin/env python3import asyncioimport jsonfrom solana.rpc.async_api import AsyncClientfrom solders.keypair import Keypairfrom solders.message import Messagefrom solders.pubkey import Pubkeyfrom solders.system_program import create_account, CreateAccountParamsfrom solders.transaction import Transactionfrom spl.token.async_client import AsyncTokenfrom spl.token.instructions import (create_associated_token_account,get_associated_token_address,initialize_mint,InitializeMintParams,mint_to_checked,MintToCheckedParams,)from spl.token.constants import MINT_LEN, TOKEN_PROGRAM_IDDECIMALS = 2AMOUNT_TO_MINT = 100async def main():rpc = AsyncClient("http://localhost:8899")async with rpc:mint_tokens_instruction = mint_to_checked(MintToCheckedParams(program_id=TOKEN_PROGRAM_ID, # Token program to invoke.mint=mint.pubkey(), # Mint for the token being minted.dest=destination_token_account, # Token account receiving the minted tokens.mint_authority=fee_payer.pubkey(), # Authority allowed to mint new tokens.amount=AMOUNT_TO_MINT, # Token amount in base units.decimals=DECIMALS, # Decimals defined on the mint account.))latest_blockhash = await rpc.get_latest_blockhash()transaction = Transaction([fee_payer],Message([mint_tokens_instruction], fee_payer.pubkey()),latest_blockhash.value.blockhash,)result = await rpc.send_transaction(transaction)mint_info = await token.get_mint_info()destination_token_account_info = await token.get_account_info(destination_token_account)mint_account = {key: str(value) if isinstance(value, Pubkey) else valuefor key, value in mint_info._asdict().items()}token_account = {key: str(value) if isinstance(value, Pubkey) else valuefor key, value in destination_token_account_info._asdict().items()}print("Mint Address:", mint.pubkey())print("Mint Account:")print(json.dumps(mint_account, indent=2))print("\nToken Account Address:", destination_token_account)print("Token Account:")print(json.dumps(token_account, indent=2))print("\nTransaction Signature:", result.value)if __name__ == "__main__":asyncio.run(main())
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