npm install @aptos-labs/wallet-adapter-react

// main.tsx or App.tsx
import { AptosWalletAdapterProvider } from "@aptos-labs/wallet-adapter-react";
import { Network } from "@aptos-labs/ts-sdk";

function App() {
  return (
    <AptosWalletAdapterProvider
      autoConnect={true}
      dappConfig={{
        network: Network.TESTNET,
      }}
      onError={(error) => console.error("Wallet error:", error)}
    >
      <YourApp />
    </AptosWalletAdapterProvider>
  );
}

import { useWallet } from "@aptos-labs/wallet-adapter-react";

function MyComponent() {
  const {
    account,                  // Current connected account { address, publicKey }
    connected,                // Boolean: is wallet connected?
    wallet,                   // Current wallet info { name, icon, url }
    wallets,                  // Array of available wallets
    connect,                  // (walletName) => Promise<void>
    disconnect,               // () => Promise<void>
    signAndSubmitTransaction, // Submit entry function calls (use THIS in frontend)
    signTransaction,          // Sign without submitting
    submitTransaction,        // Submit a signed transaction
    signMessage,              // Sign an arbitrary message
    signMessageAndVerify,     // Sign and verify a message
    changeNetwork,            // Switch networks (not all wallets support this)
    network,                  // Current network info
  } = useWallet();
}

// entry-functions/increment.ts
import { InputTransactionData } from "@aptos-labs/wallet-adapter-react";
import { MODULE_ADDRESS } from "../lib/aptos";

export function buildIncrementPayload(): InputTransactionData {
  return {
    data: {
      function: `${MODULE_ADDRESS}::counter::increment`,
      functionArguments: [],
    },
  };
}

// components/IncrementButton.tsx
import { useWallet } from "@aptos-labs/wallet-adapter-react";
import { aptos } from "../lib/aptos";
import { buildIncrementPayload } from "../entry-functions/increment";

function IncrementButton() {
  const { signAndSubmitTransaction } = useWallet();

  const handleClick = async () => {
    try {
      const response = await signAndSubmitTransaction(
        buildIncrementPayload(),
      );
      await aptos.waitForTransaction({
        transactionHash: response.hash,
      });
    } catch (error) {
      console.error("Transaction failed:", error);
    }
  };

  return <button onClick={handleClick}>Increment</button>;
}

import { useWallet } from "@aptos-labs/wallet-adapter-react";

function WalletInfo() {
  const { account, connected, connect, disconnect, wallet, wallets } =
    useWallet();

  if (!connected) {
    return (
      <div>
        {wallets.map((w) => (
          <button key={w.name} onClick={() => connect(w.name)}>
            Connect {w.name}
          </button>
        ))}
      </div>
    );
  }

  return (
    <div>
      <p>Connected: {account?.address}</p>
      <p>Wallet: {wallet?.name}</p>
      <button onClick={disconnect}>Disconnect</button>
    </div>
  );
}