@arcjet/body

@arcjet/body

Arcjet utilities for getting the body from a Node.js Stream.

• npm package (@arcjet/body)
• GitHub source code (body/ in arcjet/arcjet-js)

What is this?

This is an internal utility to help us read streams from various frameworks. It’s a fork of stream-utils/raw-body. We chose to fork so that we can cut away functionality that we do not use and keep our dependency tree as light as possible. Specifically it always parses the stream as a UTF-8 string instead of a Buffer and only supports promises instead of callbacks.

When should I use this?

You should not use this but use stream-utils/raw-body or one of the alternatives instead. This package matches our current needs which are likely different from yours.

Install

This package is ESM only. Install with npm in Node.js:

npm install @arcjet/body

Use

import fs from "node:fs";
import { readBody } from "@arcjet/body";

const body = await readBody(fs.createReadStream("example.ts"), { limit: 1024 });
console.log(body);

License

Apache License, Version 2.0 © Arcjet Labs, Inc.

Derivative work based on raw-body licensed under MIT © Jonathan Ong and Douglas Christopher Wilson. Our work removes features that we do not use: no buffers, no sync interface.

Changelog

1.0.0-beta.12 (2025-09-22)

🚀 New Features

• add React Router integration (#5199) (498292e)
• analye-wasm, redact-wasm: ignore dashes in card numbers (#5210) (5c414d6)
• arcjet: add IP-related fields to filters (#5170) (d0aeb84)
• filters: add limit to 10 expressions, 1024 bytes (#5212) (502288a)
• stable-hash, transport: support workerd (#5077) (13c90d6)

🪲 Bug Fixes

• arcjet: show error about incorrect characteristics in logs (#5078) (9839c9c)
• astro: fix types, zod validation (#5052) (ea82f8f)
• examples: add styles to remix-express (#5115) (783db87)

📝 Documentation

• add JSDocs examples to filter rule (#5208) (c4e506a)

🧹 Miscellaneous Chores

• ci: Remove dependabot groups on examples and apply cooldown to direct deps (#5202) (9058a24)
• examples: remove experimental.nodeMiddleware from example (#5124) (408a26e)

📚 Tests

• astro: add tests (#5069) (e6d9980)