raw-body is a Node.js library for getting the raw body of a request stream. It efficiently buffers incoming data and provides the raw body as a string or buffer. It supports various encodings and content types, handling compression like gzip and deflate automatically. Useful for handling POST requests or when you need to parse the body manually. raw-body includes configurable limit support to prevent large uploads from consuming too much memory. It is a low-level utility used by many higher-level frameworks and libraries.