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

# Sign a message in Ethereum/EVM

> In this example, we are creating a button to sign a message and log the signature to the console.

```JavaScript
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>;
};
```