body-parser

Node.js body parsing middleware — populate `req.body` from JSON, urlencoded, text, and raw payloads.

body-parser

Express

Node.js body parsing middleware — populate `req.body` from JSON, urlencoded, text, and raw payloads.

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Fit

Bundle (gzip)

217.6 kB

525.2 kB raw

Install size includes transitive dependencies. Bundle size is gzipped browser payload.

Freshness

The Problem

Incoming HTTP request bodies arrive as raw streams. Reading, buffering, and parsing them into usable objects — while enforcing size limits and content types — is repetitive boilerplate in every Express handler.

What It Does

body-parser provides middleware that parses request bodies before your handlers run, exposing the result on req.body. It supports JSON, URL-encoded, raw, and text parsers with configurable limits, and is maintained by the Express team.

Installation

bash

npm install body-parser

Usage Example

import express from "express";
import bodyParser from "body-parser";

const app = express();
app.use(bodyParser.json({ limit: "1mb" }));

app.post("/users", (req, res) => {
  res.json({ received: req.body });
});

app.listen(3000);

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