157 lines
2.6 KiB
JavaScript
157 lines
2.6 KiB
JavaScript
/*!
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* body-parser
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* Copyright(c) 2014-2015 Douglas Christopher Wilson
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* MIT Licensed
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*/
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'use strict'
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/**
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* Module dependencies.
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* @private
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*/
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var deprecate = require('depd')('body-parser')
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/**
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* Cache of loaded parsers.
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* @private
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*/
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var parsers = Object.create(null)
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/**
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* @typedef Parsers
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* @type {function}
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* @property {function} json
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* @property {function} raw
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* @property {function} text
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* @property {function} urlencoded
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*/
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/**
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* Module exports.
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* @type {Parsers}
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*/
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exports = module.exports = deprecate.function(bodyParser,
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'bodyParser: use individual json/urlencoded middlewares')
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/**
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* JSON parser.
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* @public
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*/
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Object.defineProperty(exports, 'json', {
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configurable: true,
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enumerable: true,
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get: createParserGetter('json')
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})
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/**
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* Raw parser.
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* @public
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*/
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Object.defineProperty(exports, 'raw', {
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configurable: true,
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enumerable: true,
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get: createParserGetter('raw')
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})
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/**
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* Text parser.
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* @public
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*/
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Object.defineProperty(exports, 'text', {
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configurable: true,
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enumerable: true,
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get: createParserGetter('text')
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})
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/**
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* URL-encoded parser.
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* @public
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*/
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Object.defineProperty(exports, 'urlencoded', {
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configurable: true,
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enumerable: true,
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get: createParserGetter('urlencoded')
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})
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/**
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* Create a middleware to parse json and urlencoded bodies.
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*
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* @param {object} [options]
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* @return {function}
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* @deprecated
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* @public
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*/
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function bodyParser (options) {
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// use default type for parsers
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var opts = Object.create(options || null, {
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type: {
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configurable: true,
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enumerable: true,
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value: undefined,
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writable: true
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}
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})
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var _urlencoded = exports.urlencoded(opts)
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var _json = exports.json(opts)
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return function bodyParser (req, res, next) {
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_json(req, res, function (err) {
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if (err) return next(err)
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_urlencoded(req, res, next)
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})
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}
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}
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/**
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* Create a getter for loading a parser.
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* @private
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*/
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function createParserGetter (name) {
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return function get () {
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return loadParser(name)
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}
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}
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/**
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* Load a parser module.
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* @private
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*/
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function loadParser (parserName) {
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var parser = parsers[parserName]
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if (parser !== undefined) {
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return parser
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}
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// this uses a switch for static require analysis
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switch (parserName) {
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case 'json':
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parser = require('./lib/types/json')
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break
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case 'raw':
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parser = require('./lib/types/raw')
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break
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case 'text':
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parser = require('./lib/types/text')
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break
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case 'urlencoded':
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parser = require('./lib/types/urlencoded')
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break
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}
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// store to prevent invoking require()
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return (parsers[parserName] = parser)
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}
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