import React from 'react';
import { WalletName, useWallet } from '@aptos-labs/wallet-adapter-react';
 
const WalletConnectDemo = () => {
  const { connect, disconnect, account, connected } = useWallet();
 
  const handleConnect = async () => {
    try {
      // Change below to the desired wallet name instead of "Petra"
      await connect("Petra" as WalletName<"Petra">); 
      console.log('Connected to wallet:', account);
    } catch (error) {
      console.error('Failed to connect to wallet:', error);
    }
  };
 
  const handleDisconnect = async () => {
    try {
      await disconnect();
      console.log('Disconnected from wallet');
    } catch (error) {
      console.error('Failed to disconnect from wallet:', error);
    }
  };
 
  return (
    <div>
      <h1>Aptos Wallet Connection</h1>
      <div>
        {connected ? (
          <div>
            <p>Connected to: {account?.address}</p>
            <button onClick={handleDisconnect}>Disconnect</button>
          </div>
        ) : (
          <button onClick={handleConnect}>Connect Wallet</button>
        )}
      </div>
    </div>
  );
};
 
export default WalletConnectDemo;

import React from 'react';
import { useWallet } from '@aptos-labs/wallet-adapter-react'; 
import { Aptos, AptosConfig, Network } from '@aptos-labs/ts-sdk';
 
const config = new AptosConfig({ network: Network.MAINNET });
const aptos = new Aptos(config);
 
const SignAndSubmit = () => {
  const { account, signAndSubmitTransaction } = useWallet();
 
  const onSignAndSubmitTransaction = async () => {
    if(account == null) {
        throw new Error("Unable to find account to sign transaction")
    }
    const response = await signAndSubmitTransaction({
      sender: account.address,
      data: {
        function: "0x1::aptos_account::transfer",
        functionArguments: [account.address, 1],
      },
    });
    // if you want to wait for transaction
    try {
      await aptos.waitForTransaction({ transactionHash: response.hash });
    } catch (error) {
      console.error(error);
    }
  };
 
  return (
    <button onClick={onSignAndSubmitTransaction}>
      Sign and submit transaction
    </button>
  );
};
 
export default SignAndSubmit;

import React, { useState } from 'react';
import { useWallet } from '@aptos-labs/wallet-adapter-react';
 
const SignMessageDemo = () => {
  const { signMessage, signMessageAndVerify, connected, account } = useWallet();
  const [message, setMessage] = useState<string>('');
  const [nonce, setNonce] = useState<string>('');
  const [signedMessage, setSignedMessage] = useState<any>(null);
  const [verificationResult, setVerificationResult] = useState<boolean | null>(null);
  const [error, setError] = useState<string | null>(null);
 
  const handleSignMessage = async () => {
    setError(null);
    try {
      const response = await signMessage({ message, nonce });
      setSignedMessage(response);
    } catch (err: any) {
      setError(`Failed to sign message: ${err.message}`);
    }
  };
 
  const handleVerifyMessage = async () => {
    setError(null);
    try {
      const result = await signMessageAndVerify({ message, nonce });
      setVerificationResult(result);
    } catch (err: any) {
      setError(`Failed to verify message: ${err.message}`);
    }
  };
 
  return (
    <div>
      <h1>Aptos Sign and Verify Message</h1>
      <div>
        {connected ? (
          <div>
            <p>Connected to: {account?.address}</p>
            <div className="flex flex-col gap-4">
              <textarea
                value={message}
                onChange={(e) => setMessage(e.target.value)}
                placeholder="Enter your message here"
                className="border rounded p-2"
              />
              <input
                type="text"
                value={nonce}
                onChange={(e) => setNonce(e.target.value)}
                placeholder="Enter nonce (random string) here"
                className="border rounded p-2 mt-2"
              />
              <button onClick={handleSignMessage} className="bg-blue-500 text-white rounded p-2 mt-2">
                Sign Message
              </button>
              {signedMessage && (
                <div>
                  <h4>Signed Message</h4>
                  <pre>{JSON.stringify(signedMessage, null, 2)}</pre>
                  <button onClick={handleVerifyMessage} className="bg-green-500 text-white rounded p-2 mt-2">
                    Verify Message
                  </button>
                </div>
              )}
              {verificationResult !== null && (
                <div>
                  <h4>Verification Result</h4>
                  <p>{verificationResult ? 'Message is verified!' : 'Failed to verify message.'}</p>
                </div>
              )}
              {error && (
                <div className="text-red-600">
                  <p>{error}</p>
                </div>
              )}
            </div>
          </div>
        ) : (
          <p>Please connect your wallet to sign and verify messages.</p>
        )}
      </div>
    </div>
  );
};
 
export default SignMessageDemo;

import React from 'react';
import { useWallet } from '@aptos-labs/wallet-adapter-react';
import { Network } from '@aptos-labs/ts-sdk';
 
const ChangeNetworkDemo = () => {
  const { network, changeNetwork, wallet } = useWallet();
  const isNetworkChangeSupported = wallet?.name === "Nightly";
 
  const isValidNetworkName = () => {
    return network && Object.values<string>(Network).includes(network.name);
  };
 
  return (
    <div>
      <h4>Network Info</h4>
      <div>
        <div><strong>Network name</strong></div>
        <div>
          <span style={{ color: isValidNetworkName() ? 'green' : 'red' }}>
            {network?.name ?? 'Not Present'}
          </span>
          {` (Expected: ${Object.values<string>(Network).join(', ')})`}
        </div>
        <div><strong>URL</strong></div>
        <div>
          {network?.url ? (
            <a href={network.url} target="_blank" rel="noreferrer">
              {network.url}
            </a>
          ) : (
            'Not Present'
          )}
        </div>
        <div><strong>Chain ID</strong></div>
        <div>{network?.chainId ?? 'Not Present'}</div>
      </div>
      <div>
        <h4>Change Network</h4>
        <div>
          <label>
            <input
              type="radio"
              name="network"
              value={Network.DEVNET}
              checked={network?.name === Network.DEVNET}
              onChange={() => changeNetwork(Network.DEVNET)}
              disabled={!isNetworkChangeSupported}
            />
            Devnet
          </label>
          <label>
            <input
              type="radio"
              name="network"
              value={Network.TESTNET}
              checked={network?.name === Network.TESTNET}
              onChange={() => changeNetwork(Network.TESTNET)}
              disabled={!isNetworkChangeSupported}
            />
            Testnet
          </label>
          <label>
            <input
              type="radio"
              name="network"
              value={Network.MAINNET}
              checked={network?.name === Network.MAINNET}
              onChange={() => changeNetwork(Network.MAINNET)}
              disabled={!isNetworkChangeSupported}
            />
            Mainnet
          </label>
        </div>
        {!isNetworkChangeSupported && (
          <div>
            * {wallet?.name ?? 'This wallet'} does not support network change requests
          </div>
        )}
      </div>
    </div>
  );
};
 
export default ChangeNetworkDemo;

const onSignAndSubmitBCSTransaction = async () => {
  const response = await signAndSubmitTransaction({
    sender: account.address,
    data: {
      function: "0x1::aptos_account::transfer",
      functionArguments: [AccountAddress.from(account.address), new U64(1)],
    },
  });
  // if you want to wait for transaction
  try {
    await aptos.waitForTransaction({ transactionHash: response.hash });
  } catch (error) {
    console.error(error);
  }
};
 
<button onClick={onSignAndSubmitTransaction}>
  Sign and submit BCS transaction
</button>;