---
title: "Socket.send(data) | Grafana k6 documentation"
description: "Send a data string through the connection."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# Socket.send(data)

> Note
> 
> A module with a better and standard API exists.
> 
> The new [k6/websockets API](/docs/k6/latest/javascript-api/k6-websockets/) partially implements the [WebSockets API living standard](https://websockets.spec.whatwg.org/).
> 
> When possible, we recommend using the new API. It uses a global event loop for consistency with other k6 APIs and better performance.

Send a data string through the connection. You can use `JSON.stringify` to convert a JSON or JavaScript values to a JSON string.

Expand table

| Parameter | Type   | Description       |
|-----------|--------|-------------------|
| data      | string | The data to send. |

### Example

JavaScript ![Copy code to clipboard](/media/images/icons/icon-copy-small-2.svg) Copy

```javascript
import ws from 'k6/ws';

export default function () {
  const url = 'wss://echo.websocket.org';
  const response = ws.connect(url, null, function (socket) {
    socket.on('open', function () {
      socket.send('my-message');
      socket.send(JSON.stringify({ data: 'hola' }));
    });
  });
}
```

- See also [Socket.sendBinary(data)](/docs/k6/latest/javascript-api/k6-ws/socket/socket-sendbinary/)