> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dynamic.xyz/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign a message in Ethereum/EVM

<Card title="Recommended: JavaScript SDK with React Hooks" icon="react" color="#4779FE">
  For new React apps, we recommend the JavaScript SDK with React Hooks (`@dynamic-labs-sdk/react-hooks`) instead of the legacy React SDK documented here. The JS SDK comes with many benefits such as a much smaller bundle size and other optimizations. Use the [React quickstart (JavaScript SDK)](/javascript/reference/react-quickstart) to get started.
</Card>

```JavaScript theme={"system"}
import { useDynamicContext } from '@dynamic-labs/sdk-react-core';

const SignMessageButton = () => {
  const { primaryWallet } = useDynamicContext();

  const signMessage = async () => {
    if (!primaryWallet) return;

    const signature = await primaryWallet.signMessage('example');

    console.log('signature', signature);
  };

  return <button onClick={signMessage}>Sign message</button>;
};
```

<Info>
  Using the JavaScript SDK? See [Signing a Message](/javascript/reference/wallets/sign-message) for the equivalent guide.
</Info>