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README.md
body-parser
Node.js body parsing middleware.
This does not handle multipart bodies, due to their complex and typically large nature. For multipart bodies, you may be interested in the following modules:
Other body parsers you might be interested in:
Installation
$ npm install body-parser
API
var express = require('express')
var bodyParser = require('body-parser')
var app = express()
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded())
// parse application/json
app.use(bodyParser.json())
// parse application/vnd.api+json as json
app.use(bodyParser.json({ type: 'application/vnd.api+json' }))
app.use(function (req, res, next) {
console.log(req.body) // populated!
next()
})
bodyParser.json(options)
Returns middleware that only parses json. This parser accepts any Unicode encoding of the body and supports automatic inflation of gzip and deflate encodings.
The options are:
strict- only parse objects and arrays. (default:true)inflate- if deflated bodies will be inflated. (default:true)limit- maximum request body size. (default:<100kb>)reviver- passed toJSON.parse()type- request content-type to parse (default:json)verify- function to verify body content
The type argument is passed directly to the type-is library. This can be an extension name (like json), a mime type (like application/json), or a mime time with a wildcard (like */json).
The verify argument, if supplied, is called as verify(req, res, buf, encoding), where buf is a Buffer of the raw request body and encoding is the encoding of the request. The parsing can be aborted by throwing an error.
The reviver argument is passed directly to JSON.parse as the second argument. You can find more information on this argument in the MDN documentation about JSON.parse.
bodyParser.raw(options)
Returns middleware that parses all bodies as a Buffer. This parser supports automatic inflation of gzip and deflate encodings.
The options are:
inflate- if deflated bodies will be inflated. (default:true)limit- maximum request body size. (default:<100kb>)type- request content-type to parse (default:application/octet-stream)verify- function to verify body content
The type argument is passed directly to the type-is library. This can be an extension name (like bin), a mime type (like application/octet-stream), or a mime time with a wildcard (like application/*).
The verify argument, if supplied, is called as verify(req, res, buf, encoding), where buf is a Buffer of the raw request body and encoding is the encoding of the request. The parsing can be aborted by throwing an error.
bodyParser.text(options)
Returns middleware that parses all bodies as a string. This parser supports automatic inflation of gzip and deflate encodings.
The options are:
defaultCharset- the default charset to parse as, if not specified in content-type. (default:utf-8)inflate- if deflated bodies will be inflated. (default:true)limit- maximum request body size. (default:<100kb>)type- request content-type to parse (default:text/plain)verify- function to verify body content
The type argument is passed directly to the type-is library. This can be an extension name (like txt), a mime type (like text/plain), or a mime time with a wildcard (like text/*).
The verify argument, if supplied, is called as verify(req, res, buf, encoding), where buf is a Buffer of the raw request body and encoding is the encoding of the request. The parsing can be aborted by throwing an error.
bodyParser.urlencoded(options)
Returns middleware that only parses urlencoded bodies. This parser accepts only UTF-8 encoding of the body and supports automatic inflation of gzip and deflate encodings.
The options are:
extended- parse extended syntax with the qs module. (default:true)inflate- if deflated bodies will be inflated. (default:true)limit- maximum request body size. (default:<100kb>)type- request content-type to parse (default:urlencoded)verify- function to verify body content
The extended argument allows to choose between parsing the urlencoded data with the querystring library (when false) or the qs library (when true). The "extended" syntax allows for rich objects and arrays to be encoded into the urlencoded format, allowing for a JSON-like exterience with urlencoded. For more information, please see the qs library.
The type argument is passed directly to the type-is library. This can be an extension name (like urlencoded), a mime type (like application/x-www-form-urlencoded), or a mime time with a wildcard (like */x-www-form-urlencoded).
The verify argument, if supplied, is called as verify(req, res, buf, encoding), where buf is a Buffer of the raw request body and encoding is the encoding of the request. The parsing can be aborted by throwing an error.
req.body
A new body object containing the parsed data is populated on the request object after the middleware.
License
The MIT License (MIT)
Copyright (c) 2014 Jonathan Ong me@jongleberry.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.