Solanaアカウントモデル

import { generateKeyPairSigner } from "@solana/kit";

// Kit does not enable extractable private keys
const keypairSigner = await generateKeyPairSigner();
console.log(keypairSigner);

import { Address, getProgramDerivedAddress } from "@solana/kit";

const programAddress = "11111111111111111111111111111111" as Address;

const seeds = ["helloWorld"];
const [pda, bump] = await getProgramDerivedAddress({
  programAddress,
  seeds
});

console.log(`PDA: ${pda}`);
console.log(`Bump: ${bump}`);

import {
  airdropFactory,
  createSolanaRpc,
  createSolanaRpcSubscriptions,
  generateKeyPairSigner,
  lamports
} from "@solana/kit";

// Create a connection to Solana cluster
const rpc = createSolanaRpc("http://localhost:8899");
const rpcSubscriptions = createSolanaRpcSubscriptions("ws://localhost:8900");

// Generate a new keypair
const keypair = await generateKeyPairSigner();
console.log(`Public Key: ${keypair.address}`);

// Funding an address with SOL automatically creates an account
const signature = await airdropFactory({ rpc, rpcSubscriptions })({
  recipientAddress: keypair.address,
  lamports: lamports(1_000_000_000n),
  commitment: "confirmed"
});

const accountInfo = await rpc.getAccountInfo(keypair.address).send();
console.log(accountInfo);

import { createSolanaRpc } from "@solana/kit";
import { fetchSysvarClock, SYSVAR_CLOCK_ADDRESS } from "@solana/sysvars";

const rpc = createSolanaRpc("https://api.mainnet-beta.solana.com");

const accountInfo = await rpc
  .getAccountInfo(SYSVAR_CLOCK_ADDRESS, { encoding: "base64" })
  .send();
console.log(accountInfo);

// Automatically fetch and deserialize the account data
const clock = await fetchSysvarClock(rpc);
console.log(clock);

import { Address, createSolanaRpc } from "@solana/kit";

const rpc = createSolanaRpc("https://api.mainnet-beta.solana.com");

const programId = "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA" as Address;

const accountInfo = await rpc
  .getAccountInfo(programId, { encoding: "base64" })
  .send();
console.log(accountInfo);

import {
  airdropFactory,
  appendTransactionMessageInstructions,
  createSolanaRpc,
  createSolanaRpcSubscriptions,
  createTransactionMessage,
  generateKeyPairSigner,
  getSignatureFromTransaction,
  lamports,
  pipe,
  sendAndConfirmTransactionFactory,
  setTransactionMessageFeePayerSigner,
  setTransactionMessageLifetimeUsingBlockhash,
  signTransactionMessageWithSigners
} from "@solana/kit";
import { getCreateAccountInstruction } from "@solana-program/system";
import {
  getInitializeMintInstruction,
  getMintSize,
  TOKEN_2022_PROGRAM_ADDRESS,
  fetchMint
} from "@solana-program/token-2022";

// 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(1_000_000_000n),
  commitment: "confirmed"
});

// Generate keypair to use as address of mint
const mint = await generateKeyPairSigner();

// Get default mint account size (in bytes), no extensions enabled
const space = BigInt(getMintSize());

// Get minimum balance for rent exemption
const rent = await rpc.getMinimumBalanceForRentExemption(space).send();

// Instruction to create new account for mint (token 2022 program)
// Invokes the system program
const createAccountInstruction = getCreateAccountInstruction({
  payer: feePayer,
  newAccount: mint,
  lamports: rent,
  space,
  programAddress: TOKEN_2022_PROGRAM_ADDRESS
});

// Instruction to initialize mint account data
// Invokes the token 2022 program
const initializeMintInstruction = getInitializeMintInstruction({
  mint: mint.address,
  decimals: 9,
  mintAuthority: feePayer.address
});

const instructions = [createAccountInstruction, initializeMintInstruction];

// Get latest blockhash to include in transaction
const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();

// Create transaction message
const transactionMessage = pipe(
  createTransactionMessage({ version: 0 }), // Create transaction message
  (tx) => setTransactionMessageFeePayerSigner(feePayer, tx), // Set fee payer
  (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx), // Set transaction blockhash
  (tx) => appendTransactionMessageInstructions(instructions, tx) // Append instructions
);

// Sign transaction message with required signers (fee payer and mint keypair)
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("Mint Address:", mint.address);
console.log("Transaction Signature:", transactionSignature);

const accountInfo = await rpc.getAccountInfo(mint.address).send();
console.log(accountInfo);

const mintAccount = await fetchMint(rpc, mint.address);
console.log(mintAccount);