ウォレットの使用

"use client";

import { useHeliusWallet } from "helius-wallet-kit";

export function AuthButton() {
  const { status, login, logout, address } = useHeliusWallet();

  if (status === "loading") return <p>Loading…</p>;

  if (status === "authenticated") {
    return (
      <div>
        <span>{address}</span>
        <button onClick={() => logout()}>Sign out</button>
      </div>
    );
  }

  return <button onClick={() => login()}>Sign in</button>;
}

const { signMessage } = useHeliusWallet();
const signature = await signMessage("Sign in to Acme");

import {
  Transaction,
  SystemProgram,
  PublicKey,
  LAMPORTS_PER_SOL,
  ComputeBudgetProgram,
} from "@solana/web3.js";

const { address, connection, signAndSendTransaction, getPriorityFeeLevels } =
  useHeliusWallet();

const fromPubkey = new PublicKey(address!);
const toPubkey = new PublicKey(recipient);

// Estimate a priority fee from Helius.
const fees = await getPriorityFeeLevels([address!, recipient]);

const tx = new Transaction()
  .add(ComputeBudgetProgram.setComputeUnitPrice({ microLamports: fees.medium }))
  .add(
    SystemProgram.transfer({
      fromPubkey,
      toPubkey,
      lamports: 0.01 * LAMPORTS_PER_SOL,
    }),
  );

const { blockhash } = await connection.getLatestBlockhash();
tx.recentBlockhash = blockhash;
tx.feePayer = fromPubkey;

const serialized = tx.serialize({
  requireAllSignatures: false,
  verifySignatures: false,
});

const signature = await signAndSendTransaction(serialized);

const { getTransactions } = useHeliusWallet();
const transactions = await getTransactions({ limit: 20 });

const { exportWallet } = useHeliusWallet();
await exportWallet();