@solana/react-hooks

"use client";

import { autoDiscover, createClient } from "@solana/client";
import { SolanaProvider } from "@solana/react-hooks";

const client = createClient({
  endpoint: "https://api.devnet.solana.com",
  websocketEndpoint: "wss://api.devnet.solana.com",
  walletConnectors: autoDiscover()
});

export function Providers({ children }: { children: React.ReactNode }) {
  return <SolanaProvider client={client}>{children}</SolanaProvider>;
}

function WalletPanel() {
  const { connectors, connect, disconnect, wallet, status } =
    useWalletConnection();
  const balance = useBalance(wallet?.account.address);

  if (status === "connected") {
    return (
      <div>
        <p>{wallet?.account.address.toString()}</p>
        <p>Lamports: {balance.lamports?.toString() ?? "loading…"}</p>
        <button onClick={disconnect}>Disconnect</button>
      </div>
    );
  }

  return (
    <div>
      {connectors.map((connector) => (
        <button key={connector.id} onClick={() => connect(connector.id)}>
          Connect {connector.name}
        </button>
      ))}
    </div>
  );
}

import { SolanaQueryProvider, useProgramAccounts } from "@solana/react-hooks";

function ProgramAccounts({ program }: { program: string }) {
  const query = useProgramAccounts(program);

  if (query.isLoading) return <p>Loading…</p>;
  if (query.isError) return <p role="alert">RPC error</p>;

  return (
    <div>
      <button onClick={() => query.refresh()}>Refresh</button>
      <ul>
        {query.accounts.map(({ pubkey }) => (
          <li key={pubkey.toString()}>{pubkey.toString()}</li>
        ))}
      </ul>
    </div>
  );
}

export function ProgramAccountsSection({ program }: { program: string }) {
  return (
    <SolanaQueryProvider>
      <ProgramAccounts program={program} />
    </SolanaQueryProvider>
  );
}

import { useSolTransfer } from "@solana/react-hooks";

function SolTransferForm({ destination }: { destination: string }) {
  const transfer = useSolTransfer();

  return (
    <form
      onSubmit={(event) => {
        event.preventDefault();
        void transfer.send({ destination, lamports: 100_000_000n });
      }}
    >
      <button type="submit" disabled={transfer.isSending}>
        {transfer.isSending ? "Sending…" : "Send 0.1 SOL"}
      </button>
      {transfer.signature ? <p>Signature: {transfer.signature}</p> : null}
      {transfer.error ? <p role="alert">{String(transfer.error)}</p> : null}
    </form>
  );
}

import { useSendTransaction, useWallet } from "@solana/react-hooks";
import { getTransferSolInstruction } from "@solana-program/system";
import { address, lamports } from "@solana/kit";

function CustomTransactionForm({ destination }: { destination: string }) {
  const wallet = useWallet();
  const { send, isSending, signature, error } = useSendTransaction();

  async function handleSend() {
    if (wallet.status !== "connected") return;

    const instruction = getTransferSolInstruction({
      source: wallet.session.account,
      destination: address(destination),
      amount: lamports(100_000_000n)
    });

    await send({ instructions: [instruction] });
  }

  return (
    <div>
      <button onClick={handleSend} disabled={isSending}>
        {isSending ? "Sending…" : "Send 0.1 SOL"}
      </button>
      {signature ? <p>Signature: {signature}</p> : null}
      {error ? <p role="alert">{String(error)}</p> : null}
    </div>
  );
}