Que fait la création de jetons ?
La création de jetons génère de nouvelles unités d'un jeton existant et augmente l'offre totale du mint.
Seule l'autorité de création peut créer de nouveaux jetons. Le compte de jetons de destination doit déjà exister et doit appartenir au même mint.
Comment créer des jetons
La création de jetons utilise l'instruction MintTo ou MintToChecked
du Token Program.
Les exemples ci-dessous utilisent MintToChecked, qui exige que l'appelant
fournisse les décimales du mint afin que l'instruction puisse vérifier la
précision attendue du jeton avant la création.
Le mint natif ne prend pas en charge la création de jetons.
Référence source
| Élément | Description | Token Program | Token Extensions Program |
|---|---|---|---|
Mint | L'état du mint stocke l'autorité de création et l'offre totale de jetons. | Source | Source |
Account | L'état du token account stocke le solde de destination mis à jour par la création. | Source | Source |
MintTo | Une instruction de création qui crée des jetons sur un token account existant sans exiger que l'appelant fournisse les décimales du mint. | Source | Source |
MintToChecked | Une instruction de création qui exige que l'appelant fournisse les décimales du mint et vérifie cette valeur avant de créer des jetons sur un token account existant. | Source | Source |
process_mint_to | Logique de processeur partagée pour la création de jetons. | Source | Source |
Typescript
Les exemples Kit ci-dessous montrent l'approche recommandée utilisant
@solana/kit. Des exemples hérités utilisant @solana/web3.js sont inclus à
titre de référence.
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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