Créer des tokens

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

ÉlémentDescriptionToken ProgramToken Extensions Program
MintL'état du mint stocke l'autorité de création et l'offre totale de jetons.SourceSource
AccountL'état du token account stocke le solde de destination mis à jour par la création.SourceSource
MintToUne instruction de création qui crée des jetons sur un token account existant sans exiger que l'appelant fournisse les décimales du mint.SourceSource
MintToCheckedUne 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.SourceSource
process_mint_toLogique de processeur partagée pour la création de jetons.SourceSource

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);
Console
Click to execute the code.

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);
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::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(())
}
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.system_program import create_account, CreateAccountParams
from solders.transaction import Transaction
from spl.token.async_client import AsyncToken
from 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_ID
DECIMALS = 2
AMOUNT_TO_MINT = 100
async 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 value
for key, value in mint_info._asdict().items()
}
token_account = {
key: str(value) if isinstance(value, Pubkey) else value
for 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())
Console
Click to execute the code.

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