> ## Documentation Index
> Fetch the complete documentation index at: https://bun.ll1025.cn/llms.txt
> Use this file to discover all available pages before exploring further.

# fetch with unix domain sockets in Bun

In Bun, `fetch()` can send HTTP requests over a [unix domain socket](https://en.wikipedia.org/wiki/Unix_domain_socket) with the `unix` option.

```ts fetch-unix.ts icon="https://mintcdn.com/span-inc/82N53aP7NFbaCVSl/icons/typescript.svg?fit=max&auto=format&n=82N53aP7NFbaCVSl&q=85&s=787d39d6a7d96d7f9540dc74344eba23" theme={null}
const unix = "/var/run/docker.sock";

const response = await fetch("http://localhost/info", { unix });

const body = await response.json();
console.log(body); // { ... }
```

***

The `unix` option is the local file path to a unix domain socket. `fetch()` sends the request over that socket instead of a TCP connection. HTTPS is also supported: use the `https://` protocol in the URL instead of `http://`.

To send a `POST` request to an API endpoint over a unix domain socket:

```ts fetch-unix.ts icon="https://mintcdn.com/span-inc/82N53aP7NFbaCVSl/icons/typescript.svg?fit=max&auto=format&n=82N53aP7NFbaCVSl&q=85&s=787d39d6a7d96d7f9540dc74344eba23" theme={null}
const response = await fetch("https://hostname/a/path", {
  unix: "/var/run/path/to/unix.sock",
  method: "POST",
  body: JSON.stringify({ message: "Hello from Bun!" }),
  headers: {
    "Content-Type": "application/json",
  },
});

const body = await response.json();
```