# Bun fetch with unix domain sockets in Bun

> fetch with unix domain sockets in Bun

- Skill: `jarle/bun-fetch-with-unix-domain-sockets-in-bun` (Agent Skill)
- Install (CLI): `npx skillmds@latest add jarle/bun-fetch-with-unix-domain-sockets-in-bun`
- Raw SKILL.md: https://api.skillmd.com/api/skills/jarle/bun-fetch-with-unix-domain-sockets-in-bun/raw
- Safety review: pending (external: skill-scanner PASS, skillspector CAUTION)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: jarle (https://skillmd.com/u/jarle)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/jarle/bun-fetch-with-unix-domain-sockets-in-bun

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# fetch with unix domain sockets in Bun

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

```ts fetch-unix.ts icon="https://mintcdn.com/bun-1dd33a4e/nIz6GtMH5K-dfXeV/icons/typescript.svg?fit=max&auto=format&n=nIz6GtMH5K-dfXeV&q=85&s=5d73d76daf7eb7b158469d8c30d349b0" theme={"theme":{"light":"github-light","dark":"dracula"}}
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 a string that specifies the local file path to a unix domain socket. The `fetch()` function will use the socket to send the request to the server instead of using a TCP network connection. `https` is also supported by using 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/bun-1dd33a4e/nIz6GtMH5K-dfXeV/icons/typescript.svg?fit=max&auto=format&n=nIz6GtMH5K-dfXeV&q=85&s=5d73d76daf7eb7b158469d8c30d349b0" theme={"theme":{"light":"github-light","dark":"dracula"}}
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();
```