useSignPersonalMessage

Use the useSignPersonalMessage hook to prompt the user to sign a message with their wallet.

import { ConnectButton, useCurrentAccount, useSignPersonalMessage } from '@iota/dapp-kit';
import { useState } from 'react';

function MyComponent() {
    const { mutate: signPersonalMessage } = useSignPersonalMessage();
    const [message, setMessage] = useState('hello, World!');
    const [signature, setSignature] = useState('');
    const currentAccount = useCurrentAccount();

    return (
        <div style={{ padding: 20 }}>
            <ConnectButton />
            {currentAccount && (
                <>
                    <div>
                        <label>
                            Message:{' '}
                            <input
                                type="text"
                                value={message}
                                onChange={(ev) => setMessage(ev.target.value)}
                            />
                        </label>
                    </div>
                    <button
                        onClick={() => {
                            signPersonalMessage(
                                {
                                    message: new TextEncoder().encode(message),
                                },
                                {
                                    onSuccess: (result) => setSignature(result.signature),
                                },
                            );
                        }}
                    >
                        Sign message
                    </button>
                    <div>Signature: {signature}</div>
                </>
            )}
        </div>
    );
}

Example

Arguments

• message: The message to sign, as a Uint8Array.

Result

• signature: The signature of the message, as a Base64-encoded string.
• bytes: The bytes of the message, as a a Base64-encoded string.