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body-parser

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body-parser

Connect's body parsing middleware

  • 1.0.2
  • Source
  • npm
  • Socket score

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4
Created

What is body-parser?

The body-parser package is a Node.js middleware that parses incoming request bodies before your handlers, available under the req.body property. It is commonly used to parse JSON, raw, text, and URL-encoded form data.

What are body-parser's main functionalities?

JSON Body Parsing

This feature allows the server to accept and parse incoming requests with JSON payloads, making the parsed data available under req.body.

const express = require('express');
const bodyParser = require('body-parser');

const app = express();

app.use(bodyParser.json());

app.post('/json', (req, res) => {
  res.send(req.body);
});

URL-Encoded Form Data Parsing

This feature is used to parse payloads from forms submitted via HTTP POST. The 'extended' option allows for rich objects and arrays to be encoded into the URL-encoded format, allowing for a JSON-like experience with URL-encoded forms.

const express = require('express');
const bodyParser = require('body-parser');

const app = express();

app.use(bodyParser.urlencoded({ extended: true }));

app.post('/form', (req, res) => {
  res.send(req.body);
});

Raw Body Parsing

This feature lets the server accept raw data in the request body, useful for parsing bodies that are not text-based, like binary data streams.

const express = require('express');
const bodyParser = require('body-parser');

const app = express();

app.use(bodyParser.raw({ type: 'application/vnd.custom-type' }));

app.post('/raw', (req, res) => {
  res.send(req.body);
});

Text Body Parsing

This feature allows parsing text bodies, such as plain text or HTML, from the request body.

const express = require('express');
const bodyParser = require('body-parser');

const app = express();

app.use(bodyParser.text({ type: 'text/html' }));

app.post('/text', (req, res) => {
  res.send(req.body);
});

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Package last updated on 14 Apr 2014

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