Install express

+../mime/cli.js
\ No newline at end of file

+1.3.5 / 2018-02-28
+==================
+
+  * deps: mime-types@~2.1.18
+    - deps: mime-db@~1.33.0
+
+1.3.4 / 2017-08-22
+==================
+
+  * deps: mime-types@~2.1.16
+    - deps: mime-db@~1.29.0
+
+1.3.3 / 2016-05-02
+==================
+
+  * deps: mime-types@~2.1.11
+    - deps: mime-db@~1.23.0
+  * deps: negotiator@0.6.1
+    - perf: improve `Accept` parsing speed
+    - perf: improve `Accept-Charset` parsing speed
+    - perf: improve `Accept-Encoding` parsing speed
+    - perf: improve `Accept-Language` parsing speed
+
+1.3.2 / 2016-03-08
+==================
+
+  * deps: mime-types@~2.1.10
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+    - deps: mime-db@~1.22.0
+
+1.3.1 / 2016-01-19
+==================
+
+  * deps: mime-types@~2.1.9
+    - deps: mime-db@~1.21.0
+
+1.3.0 / 2015-09-29
+==================
+
+  * deps: mime-types@~2.1.7
+    - deps: mime-db@~1.19.0
+  * deps: negotiator@0.6.0
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Lazy-load modules from main entry point
+    - perf: delay type concatenation until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove closures getting spec properties
+    - perf: remove a closure from media type parsing
+    - perf: remove property delete from media type parsing
+
+1.2.13 / 2015-09-06
+===================
+
+  * deps: mime-types@~2.1.6
+    - deps: mime-db@~1.18.0
+
+1.2.12 / 2015-07-30
+===================
+
+  * deps: mime-types@~2.1.4
+    - deps: mime-db@~1.16.0
+
+1.2.11 / 2015-07-16
+===================
+
+  * deps: mime-types@~2.1.3
+    - deps: mime-db@~1.15.0
+
+1.2.10 / 2015-07-01
+===================
+
+  * deps: mime-types@~2.1.2
+    - deps: mime-db@~1.14.0
+
+1.2.9 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - perf: fix deopt during mapping
+
+1.2.8 / 2015-06-07
+==================
+
+  * deps: mime-types@~2.1.0
+    - deps: mime-db@~1.13.0
+  * perf: avoid argument reassignment & argument slice
+  * perf: avoid negotiator recursive construction
+  * perf: enable strict mode
+  * perf: remove unnecessary bitwise operator
+
+1.2.7 / 2015-05-10
+==================
+
+  * deps: negotiator@0.5.3
+    - Fix media type parameter matching to be case-insensitive
+
+1.2.6 / 2015-05-07
+==================
+
+  * deps: mime-types@~2.0.11
+    - deps: mime-db@~1.9.1
+  * deps: negotiator@0.5.2
+    - Fix comparing media types with quoted values
+    - Fix splitting media types with quoted commas
+
+1.2.5 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - deps: mime-db@~1.8.0
+
+1.2.4 / 2015-02-14
+==================
+
+  * Support Node.js 0.6
+  * deps: mime-types@~2.0.9
+    - deps: mime-db@~1.7.0
+  * deps: negotiator@0.5.1
+    - Fix preference sorting to be stable for long acceptable lists
+
+1.2.3 / 2015-01-31
+==================
+
+  * deps: mime-types@~2.0.8
+    - deps: mime-db@~1.6.0
+
+1.2.2 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - deps: mime-db@~1.5.0
+
+1.2.1 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.5
+    - deps: mime-db@~1.3.1
+
+1.2.0 / 2014-12-19
+==================
+
+  * deps: negotiator@0.5.0
+    - Fix list return order when large accepted list
+    - Fix missing identity encoding when q=0 exists
+    - Remove dynamic building of Negotiator class
+
+1.1.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - deps: mime-db@~1.3.0
+
+1.1.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - deps: mime-db@~1.2.0
+
+1.1.2 / 2014-10-14
+==================
+
+  * deps: negotiator@0.4.9
+    - Fix error when media type has invalid parameter
+
+1.1.1 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - deps: mime-db@~1.1.0
+  * deps: negotiator@0.4.8
+    - Fix all negotiations to be case-insensitive
+    - Stable sort preferences of same quality according to client order
+
+1.1.0 / 2014-09-02
+==================
+
+  * update `mime-types`
+
+1.0.7 / 2014-07-04
+==================
+
+  * Fix wrong type returned from `type` when match after unknown extension
+
+1.0.6 / 2014-06-24
+==================
+
+  * deps: negotiator@0.4.7
+
+1.0.5 / 2014-06-20
+==================
+
+ * fix crash when unknown extension given
+
+1.0.4 / 2014-06-19
+==================
+
+  * use `mime-types`
+
+1.0.3 / 2014-06-11
+==================
+
+  * deps: negotiator@0.4.6
+    - Order by specificity when quality is the same
+
+1.0.2 / 2014-05-29
+==================
+
+  * Fix interpretation when header not in request
+  * deps: pin negotiator@0.4.5
+
+1.0.1 / 2014-01-18
+==================
+
+  * Identity encoding isn't always acceptable
+  * deps: negotiator@~0.4.0
+
+1.0.0 / 2013-12-27
+==================
+
+  * Genesis

+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.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.

+# accepts
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
+Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
+
+In addition to negotiator, it allows:
+
+- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
+  as well as `('text/html', 'application/json')`.
+- Allows type shorthands such as `json`.
+- Returns `false` when no types match
+- Treats non-existent headers as `*`
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install accepts
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var accepts = require('accepts')
+```
+
+### accepts(req)
+
+Create a new `Accepts` object for the given `req`.
+
+#### .charset(charsets)
+
+Return the first accepted charset. If nothing in `charsets` is accepted,
+then `false` is returned.
+
+#### .charsets()
+
+Return the charsets that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .encoding(encodings)
+
+Return the first accepted encoding. If nothing in `encodings` is accepted,
+then `false` is returned.
+
+#### .encodings()
+
+Return the encodings that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .language(languages)
+
+Return the first accepted language. If nothing in `languages` is accepted,
+then `false` is returned.
+
+#### .languages()
+
+Return the languages that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .type(types)
+
+Return the first accepted type (and it is returned as the same text as what
+appears in the `types` array). If nothing in `types` is accepted, then `false`
+is returned.
+
+The `types` array can contain full MIME types or file extensions. Any value
+that is not a full MIME types is passed to `require('mime-types').lookup`.
+
+#### .types()
+
+Return the types that the request accepts, in the order of the client's
+preference (most preferred first).
+
+## Examples
+
+### Simple type negotiation
+
+This simple example shows how to use `accepts` to return a different typed
+respond body based on what the client wants to accept. The server lists it's
+preferences in order and will get back the best match between the client and
+server.
+
+```js
+var accepts = require('accepts')
+var http = require('http')
+
+function app (req, res) {
+  var accept = accepts(req)
+
+  // the order of this list is significant; should be server preferred order
+  switch (accept.type(['json', 'html'])) {
+    case 'json':
+      res.setHeader('Content-Type', 'application/json')
+      res.write('{"hello":"world!"}')
+      break
+    case 'html':
+      res.setHeader('Content-Type', 'text/html')
+      res.write('<b>hello, world!</b>')
+      break
+    default:
+      // the fallback is text/plain, so no need to specify it above
+      res.setHeader('Content-Type', 'text/plain')
+      res.write('hello, world!')
+      break
+  }
+
+  res.end()
+}
+
+http.createServer(app).listen(3000)
+```
+
+You can test this out with the cURL program:
+```sh
+curl -I -H'Accept: text/html' http://localhost:3000/
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/accepts.svg
+[npm-url]: https://npmjs.org/package/accepts
+[node-version-image]: https://img.shields.io/node/v/accepts.svg
+[node-version-url]: https://nodejs.org/en/download/
+[travis-image]: https://img.shields.io/travis/jshttp/accepts/master.svg
+[travis-url]: https://travis-ci.org/jshttp/accepts
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/accepts/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/accepts
+[downloads-image]: https://img.shields.io/npm/dm/accepts.svg
+[downloads-url]: https://npmjs.org/package/accepts

+/*!
+ * accepts
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Negotiator = require('negotiator')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Accepts
+
+/**
+ * Create a new Accepts object for the given req.
+ *
+ * @param {object} req
+ * @public
+ */
+
+function Accepts (req) {
+  if (!(this instanceof Accepts)) {
+    return new Accepts(req)
+  }
+
+  this.headers = req.headers
+  this.negotiator = new Negotiator(req)
+}
+
+/**
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single mime type string
+ * such as "application/json", the extension name
+ * such as "json" or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     this.types('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('html');
+ *     // => "html"
+ *     this.types('text/html');
+ *     // => "text/html"
+ *     this.types('json', 'text');
+ *     // => "json"
+ *     this.types('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('image/png');
+ *     this.types('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     this.types(['html', 'json']);
+ *     this.types('html', 'json');
+ *     // => "json"
+ *
+ * @param {String|Array} types...
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+Accepts.prototype.type =
+Accepts.prototype.types = function (types_) {
+  var types = types_
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length)
+    for (var i = 0; i < types.length; i++) {
+      types[i] = arguments[i]
+    }
+  }
+
+  // no types, return all requested types
+  if (!types || types.length === 0) {
+    return this.negotiator.mediaTypes()
+  }
+
+  // no accept header, return first given type
+  if (!this.headers.accept) {
+    return types[0]
+  }
+
+  var mimes = types.map(extToMime)
+  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
+  var first = accepts[0]
+
+  return first
+    ? types[mimes.indexOf(first)]
+    : false
+}
+
+/**
+ * Return accepted encodings or best fit based on `encodings`.
+ *
+ * Given `Accept-Encoding: gzip, deflate`
+ * an array sorted by quality is returned:
+ *
+ *     ['gzip', 'deflate']
+ *
+ * @param {String|Array} encodings...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.encoding =
+Accepts.prototype.encodings = function (encodings_) {
+  var encodings = encodings_
+
+  // support flattened arguments
+  if (encodings && !Array.isArray(encodings)) {
+    encodings = new Array(arguments.length)
+    for (var i = 0; i < encodings.length; i++) {
+      encodings[i] = arguments[i]
+    }
+  }
+
+  // no encodings, return all requested encodings
+  if (!encodings || encodings.length === 0) {
+    return this.negotiator.encodings()
+  }
+
+  return this.negotiator.encodings(encodings)[0] || false
+}
+
+/**
+ * Return accepted charsets or best fit based on `charsets`.
+ *
+ * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
+ * an array sorted by quality is returned:
+ *
+ *     ['utf-8', 'utf-7', 'iso-8859-1']
+ *
+ * @param {String|Array} charsets...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.charset =
+Accepts.prototype.charsets = function (charsets_) {
+  var charsets = charsets_
+
+  // support flattened arguments
+  if (charsets && !Array.isArray(charsets)) {
+    charsets = new Array(arguments.length)
+    for (var i = 0; i < charsets.length; i++) {
+      charsets[i] = arguments[i]
+    }
+  }
+
+  // no charsets, return all requested charsets
+  if (!charsets || charsets.length === 0) {
+    return this.negotiator.charsets()
+  }
+
+  return this.negotiator.charsets(charsets)[0] || false
+}
+
+/**
+ * Return accepted languages or best fit based on `langs`.
+ *
+ * Given `Accept-Language: en;q=0.8, es, pt`
+ * an array sorted by quality is returned:
+ *
+ *     ['es', 'pt', 'en']
+ *
+ * @param {String|Array} langs...
+ * @return {Array|String}
+ * @public
+ */
+
+Accepts.prototype.lang =
+Accepts.prototype.langs =
+Accepts.prototype.language =
+Accepts.prototype.languages = function (languages_) {
+  var languages = languages_
+
+  // support flattened arguments
+  if (languages && !Array.isArray(languages)) {
+    languages = new Array(arguments.length)
+    for (var i = 0; i < languages.length; i++) {
+      languages[i] = arguments[i]
+    }
+  }
+
+  // no languages, return all requested languages
+  if (!languages || languages.length === 0) {
+    return this.negotiator.languages()
+  }
+
+  return this.negotiator.languages(languages)[0] || false
+}
+
+/**
+ * Convert extnames to mime.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function extToMime (type) {
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if mime is valid.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function validMime (type) {
+  return typeof type === 'string'
+}

+{
+  "_from": "accepts@~1.3.5",
+  "_id": "accepts@1.3.5",
+  "_inBundle": false,
+  "_integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+  "_location": "/accepts",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "accepts@~1.3.5",
+    "name": "accepts",
+    "escapedName": "accepts",
+    "rawSpec": "~1.3.5",
+    "saveSpec": null,
+    "fetchSpec": "~1.3.5"
+  },
+  "_requiredBy": [
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+  "_shasum": "eb777df6011723a3b14e8a72c0805c8e86746bd2",
+  "_spec": "accepts@~1.3.5",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "bugs": {
+    "url": "https://github.com/jshttp/accepts/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Douglas Christopher Wilson",
+      "email": "doug@somethingdoug.com"
+    },
+    {
+      "name": "Jonathan Ong",
+      "email": "me@jongleberry.com",
+      "url": "http://jongleberry.com"
+    }
+  ],
+  "dependencies": {
+    "mime-types": "~2.1.18",
+    "negotiator": "0.6.1"
+  },
+  "deprecated": false,
+  "description": "Higher-level content negotiation",
+  "devDependencies": {
+    "eslint": "4.18.1",
+    "eslint-config-standard": "11.0.0",
+    "eslint-plugin-import": "2.9.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "6.0.1",
+    "eslint-plugin-promise": "3.6.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "~1.21.5"
+  },
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "homepage": "https://github.com/jshttp/accepts#readme",
+  "keywords": [
+    "content",
+    "negotiation",
+    "accept",
+    "accepts"
+  ],
+  "license": "MIT",
+  "name": "accepts",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jshttp/accepts.git"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  },
+  "version": "1.3.5"
+}

+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.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.

+# Array Flatten
+
+[![NPM version][npm-image]][npm-url]
+[![NPM downloads][downloads-image]][downloads-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+> Flatten an array of nested arrays into a single flat array. Accepts an optional depth.
+
+## Installation
+
+```
+npm install array-flatten --save
+```
+
+## Usage
+
+```javascript
+var flatten = require('array-flatten')
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9])
+//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)
+//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]
+
+(function () {
+  flatten(arguments) //=> [1, 2, 3]
+})(1, [2, 3])
+```
+
+## License
+
+MIT
+
+[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat
+[npm-url]: https://npmjs.org/package/array-flatten
+[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat
+[downloads-url]: https://npmjs.org/package/array-flatten
+[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat
+[travis-url]: https://travis-ci.org/blakeembrey/array-flatten
+[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master

+'use strict'
+
+/**
+ * Expose `arrayFlatten`.
+ */
+module.exports = arrayFlatten
+
+/**
+ * Recursive flatten function with depth.
+ *
+ * @param  {Array}  array
+ * @param  {Array}  result
+ * @param  {Number} depth
+ * @return {Array}
+ */
+function flattenWithDepth (array, result, depth) {
+  for (var i = 0; i < array.length; i++) {
+    var value = array[i]
+
+    if (depth > 0 && Array.isArray(value)) {
+      flattenWithDepth(value, result, depth - 1)
+    } else {
+      result.push(value)
+    }
+  }
+
+  return result
+}
+
+/**
+ * Recursive flatten function. Omitting depth is slightly faster.
+ *
+ * @param  {Array} array
+ * @param  {Array} result
+ * @return {Array}
+ */
+function flattenForever (array, result) {
+  for (var i = 0; i < array.length; i++) {
+    var value = array[i]
+
+    if (Array.isArray(value)) {
+      flattenForever(value, result)
+    } else {
+      result.push(value)
+    }
+  }
+
+  return result
+}
+
+/**
+ * Flatten an array, with the ability to define a depth.
+ *
+ * @param  {Array}  array
+ * @param  {Number} depth
+ * @return {Array}
+ */
+function arrayFlatten (array, depth) {
+  if (depth == null) {
+    return flattenForever(array, [])
+  }
+
+  return flattenWithDepth(array, [], depth)
+}

+{
+  "_from": "array-flatten@1.1.1",
+  "_id": "array-flatten@1.1.1",
+  "_inBundle": false,
+  "_integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
+  "_location": "/array-flatten",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "array-flatten@1.1.1",
+    "name": "array-flatten",
+    "escapedName": "array-flatten",
+    "rawSpec": "1.1.1",
+    "saveSpec": null,
+    "fetchSpec": "1.1.1"
+  },
+  "_requiredBy": [
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+  "_shasum": "9a5f699051b1e7073328f2a008968b64ea2955d2",
+  "_spec": "array-flatten@1.1.1",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "author": {
+    "name": "Blake Embrey",
+    "email": "hello@blakeembrey.com",
+    "url": "http://blakeembrey.me"
+  },
+  "bugs": {
+    "url": "https://github.com/blakeembrey/array-flatten/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Flatten an array of nested arrays into a single flat array",
+  "devDependencies": {
+    "istanbul": "^0.3.13",
+    "mocha": "^2.2.4",
+    "pre-commit": "^1.0.7",
+    "standard": "^3.7.3"
+  },
+  "files": [
+    "array-flatten.js",
+    "LICENSE"
+  ],
+  "homepage": "https://github.com/blakeembrey/array-flatten",
+  "keywords": [
+    "array",
+    "flatten",
+    "arguments",
+    "depth"
+  ],
+  "license": "MIT",
+  "main": "array-flatten.js",
+  "name": "array-flatten",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/blakeembrey/array-flatten.git"
+  },
+  "scripts": {
+    "test": "istanbul cover _mocha -- -R spec"
+  },
+  "version": "1.1.1"
+}

+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.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.

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

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var getBody = require('raw-body')
+var iconv = require('iconv-lite')
+var onFinished = require('on-finished')
+var zlib = require('zlib')
+
+/**
+ * Module exports.
+ */
+
+module.exports = read
+
+/**
+ * Read a request into a buffer and parse.
+ *
+ * @param {object} req
+ * @param {object} res
+ * @param {function} next
+ * @param {function} parse
+ * @param {function} debug
+ * @param {object} options
+ * @private
+ */
+
+function read (req, res, next, parse, debug, options) {
+  var length
+  var opts = options
+  var stream
+
+  // flag as parsed
+  req._body = true
+
+  // read options
+  var encoding = opts.encoding !== null
+    ? opts.encoding
+    : null
+  var verify = opts.verify
+
+  try {
+    // get the content stream
+    stream = contentstream(req, debug, opts.inflate)
+    length = stream.length
+    stream.length = undefined
+  } catch (err) {
+    return next(err)
+  }
+
+  // set raw-body options
+  opts.length = length
+  opts.encoding = verify
+    ? null
+    : encoding
+
+  // assert charset is supported
+  if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) {
+    return next(createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+      charset: encoding.toLowerCase(),
+      type: 'charset.unsupported'
+    }))
+  }
+
+  // read body
+  debug('read body')
+  getBody(stream, opts, function (error, body) {
+    if (error) {
+      var _error
+
+      if (error.type === 'encoding.unsupported') {
+        // echo back charset
+        _error = createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+          charset: encoding.toLowerCase(),
+          type: 'charset.unsupported'
+        })
+      } else {
+        // set status code on error
+        _error = createError(400, error)
+      }
+
+      // read off entire request
+      stream.resume()
+      onFinished(req, function onfinished () {
+        next(createError(400, _error))
+      })
+      return
+    }
+
+    // verify
+    if (verify) {
+      try {
+        debug('verify body')
+        verify(req, res, body, encoding)
+      } catch (err) {
+        next(createError(403, err, {
+          body: body,
+          type: err.type || 'entity.verify.failed'
+        }))
+        return
+      }
+    }
+
+    // parse
+    var str = body
+    try {
+      debug('parse body')
+      str = typeof body !== 'string' && encoding !== null
+        ? iconv.decode(body, encoding)
+        : body
+      req.body = parse(str)
+    } catch (err) {
+      next(createError(400, err, {
+        body: str,
+        type: err.type || 'entity.parse.failed'
+      }))
+      return
+    }
+
+    next()
+  })
+}
+
+/**
+ * Get the content stream of the request.
+ *
+ * @param {object} req
+ * @param {function} debug
+ * @param {boolean} [inflate=true]
+ * @return {object}
+ * @api private
+ */
+
+function contentstream (req, debug, inflate) {
+  var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase()
+  var length = req.headers['content-length']
+  var stream
+
+  debug('content-encoding "%s"', encoding)
+
+  if (inflate === false && encoding !== 'identity') {
+    throw createError(415, 'content encoding unsupported', {
+      encoding: encoding,
+      type: 'encoding.unsupported'
+    })
+  }
+
+  switch (encoding) {
+    case 'deflate':
+      stream = zlib.createInflate()
+      debug('inflate body')
+      req.pipe(stream)
+      break
+    case 'gzip':
+      stream = zlib.createGunzip()
+      debug('gunzip body')
+      req.pipe(stream)
+      break
+    case 'identity':
+      stream = req
+      stream.length = length
+      break
+    default:
+      throw createError(415, 'unsupported content encoding "' + encoding + '"', {
+        encoding: encoding,
+        type: 'encoding.unsupported'
+      })
+  }
+
+  return stream
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:json')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = json
+
+/**
+ * RegExp to match the first non-space in a string.
+ *
+ * Allowed whitespace is defined in RFC 7159:
+ *
+ *    ws = *(
+ *            %x20 /              ; Space
+ *            %x09 /              ; Horizontal tab
+ *            %x0A /              ; Line feed or New line
+ *            %x0D )              ; Carriage return
+ */
+
+var FIRST_CHAR_REGEXP = /^[\x20\x09\x0a\x0d]*(.)/ // eslint-disable-line no-control-regex
+
+/**
+ * Create a middleware to parse JSON bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function json (options) {
+  var opts = options || {}
+
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var inflate = opts.inflate !== false
+  var reviver = opts.reviver
+  var strict = opts.strict !== false
+  var type = opts.type || 'application/json'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (body) {
+    if (body.length === 0) {
+      // special-case empty json body, as it's a common client-side mistake
+      // TODO: maybe make this configurable or part of "strict" option
+      return {}
+    }
+
+    if (strict) {
+      var first = firstchar(body)
+
+      if (first !== '{' && first !== '[') {
+        debug('strict violation')
+        throw createStrictSyntaxError(body, first)
+      }
+    }
+
+    try {
+      debug('parse json')
+      return JSON.parse(body, reviver)
+    } catch (e) {
+      throw normalizeJsonSyntaxError(e, {
+        stack: e.stack
+      })
+    }
+  }
+
+  return function jsonParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset per RFC 7159 sec 8.1
+    var charset = getCharset(req) || 'utf-8'
+    if (charset.substr(0, 4) !== 'utf-') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Create strict violation syntax error matching native error.
+ *
+ * @param {string} str
+ * @param {string} char
+ * @return {Error}
+ * @private
+ */
+
+function createStrictSyntaxError (str, char) {
+  var index = str.indexOf(char)
+  var partial = str.substring(0, index) + '#'
+
+  try {
+    JSON.parse(partial); /* istanbul ignore next */ throw new SyntaxError('strict violation')
+  } catch (e) {
+    return normalizeJsonSyntaxError(e, {
+      message: e.message.replace('#', char),
+      stack: e.stack
+    })
+  }
+}
+
+/**
+ * Get the first non-whitespace character in a string.
+ *
+ * @param {string} str
+ * @return {function}
+ * @private
+ */
+
+function firstchar (str) {
+  return FIRST_CHAR_REGEXP.exec(str)[1]
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Normalize a SyntaxError for JSON.parse.
+ *
+ * @param {SyntaxError} error
+ * @param {object} obj
+ * @return {SyntaxError}
+ */
+
+function normalizeJsonSyntaxError (error, obj) {
+  var keys = Object.getOwnPropertyNames(error)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    if (key !== 'stack' && key !== 'message') {
+      delete error[key]
+    }
+  }
+
+  var props = Object.keys(obj)
+
+  for (var j = 0; j < props.length; j++) {
+    var prop = props[j]
+    error[prop] = obj[prop]
+  }
+
+  return error
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var debug = require('debug')('body-parser:raw')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = raw
+
+/**
+ * Create a middleware to parse raw bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function raw (options) {
+  var opts = options || {}
+
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'application/octet-stream'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function rawParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: null,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var debug = require('debug')('body-parser:text')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = text
+
+/**
+ * Create a middleware to parse text bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function text (options) {
+  var opts = options || {}
+
+  var defaultCharset = opts.defaultCharset || 'utf-8'
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'text/plain'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function textParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // get charset
+    var charset = getCharset(req) || defaultCharset
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:urlencoded')
+var deprecate = require('depd')('body-parser')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = urlencoded
+
+/**
+ * Cache of parser modules.
+ */
+
+var parsers = Object.create(null)
+
+/**
+ * Create a middleware to parse urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function urlencoded (options) {
+  var opts = options || {}
+
+  // notice because option default will flip in next major
+  if (opts.extended === undefined) {
+    deprecate('undefined extended: provide extended option')
+  }
+
+  var extended = opts.extended !== false
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'application/x-www-form-urlencoded'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate query parser
+  var queryparse = extended
+    ? extendedparser(opts)
+    : simpleparser(opts)
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (body) {
+    return body.length
+      ? queryparse(body)
+      : {}
+  }
+
+  return function urlencodedParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset
+    var charset = getCharset(req) || 'utf-8'
+    if (charset !== 'utf-8') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      debug: debug,
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the extended query parser.
+ *
+ * @param {object} options
+ */
+
+function extendedparser (options) {
+  var parameterLimit = options.parameterLimit !== undefined
+    ? options.parameterLimit
+    : 1000
+  var parse = parser('qs')
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    var arrayLimit = Math.max(100, paramCount)
+
+    debug('parse extended urlencoding')
+    return parse(body, {
+      allowPrototypes: true,
+      arrayLimit: arrayLimit,
+      depth: Infinity,
+      parameterLimit: parameterLimit
+    })
+  }
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Count the number of parameters, stopping once limit reached
+ *
+ * @param {string} body
+ * @param {number} limit
+ * @api private
+ */
+
+function parameterCount (body, limit) {
+  var count = 0
+  var index = 0
+
+  while ((index = body.indexOf('&', index)) !== -1) {
+    count++
+    index++
+
+    if (count === limit) {
+      return undefined
+    }
+  }
+
+  return count
+}
+
+/**
+ * Get parser for module name dynamically.
+ *
+ * @param {string} name
+ * @return {function}
+ * @api private
+ */
+
+function parser (name) {
+  var mod = parsers[name]
+
+  if (mod !== undefined) {
+    return mod.parse
+  }
+
+  // this uses a switch for static require analysis
+  switch (name) {
+    case 'qs':
+      mod = require('qs')
+      break
+    case 'querystring':
+      mod = require('querystring')
+      break
+  }
+
+  // store to prevent invoking require()
+  parsers[name] = mod
+
+  return mod.parse
+}
+
+/**
+ * Get the simple query parser.
+ *
+ * @param {object} options
+ */
+
+function simpleparser (options) {
+  var parameterLimit = options.parameterLimit !== undefined
+    ? options.parameterLimit
+    : 1000
+  var parse = parser('querystring')
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    debug('parse urlencoding')
+    return parse(body, undefined, undefined, {maxKeys: parameterLimit})
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+{
+  "_from": "body-parser@1.18.2",
+  "_id": "body-parser@1.18.2",
+  "_inBundle": false,
+  "_integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
+  "_location": "/body-parser",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "body-parser@1.18.2",
+    "name": "body-parser",
+    "escapedName": "body-parser",
+    "rawSpec": "1.18.2",
+    "saveSpec": null,
+    "fetchSpec": "1.18.2"
+  },
+  "_requiredBy": [
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.2.tgz",
+  "_shasum": "87678a19d84b47d859b83199bd59bce222b10454",
+  "_spec": "body-parser@1.18.2",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "bugs": {
+    "url": "https://github.com/expressjs/body-parser/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Douglas Christopher Wilson",
+      "email": "doug@somethingdoug.com"
+    },
+    {
+      "name": "Jonathan Ong",
+      "email": "me@jongleberry.com",
+      "url": "http://jongleberry.com"
+    }
+  ],
+  "dependencies": {
+    "bytes": "3.0.0",
+    "content-type": "~1.0.4",
+    "debug": "2.6.9",
+    "depd": "~1.1.1",
+    "http-errors": "~1.6.2",
+    "iconv-lite": "0.4.19",
+    "on-finished": "~2.3.0",
+    "qs": "6.5.1",
+    "raw-body": "2.3.2",
+    "type-is": "~1.6.15"
+  },
+  "deprecated": false,
+  "description": "Node.js body parsing middleware",
+  "devDependencies": {
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "methods": "1.1.2",
+    "mocha": "2.5.3",
+    "safe-buffer": "5.1.1",
+    "supertest": "1.1.0"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "homepage": "https://github.com/expressjs/body-parser#readme",
+  "license": "MIT",
+  "name": "body-parser",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/expressjs/body-parser.git"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --require test/support/env --reporter spec --check-leaks --bail test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --require test/support/env --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --require test/support/env --reporter spec --check-leaks test/"
+  },
+  "version": "1.18.2"
+}

+3.0.0 / 2017-08-31
+==================
+
+  * Change "kB" to "KB" in format output
+  * Remove support for Node.js 0.6
+  * Remove support for ComponentJS
+
+2.5.0 / 2017-03-24
+==================
+
+  * Add option "unit"
+
+2.4.0 / 2016-06-01
+==================
+
+  * Add option "unitSeparator"
+
+2.3.0 / 2016-02-15
+==================
+
+  * Drop partial bytes on all parsed units
+  * Fix non-finite numbers to `.format` to return `null`
+  * Fix parsing byte string that looks like hex
+  * perf: hoist regular expressions
+
+2.2.0 / 2015-11-13
+==================
+
+  * add option "decimalPlaces"
+  * add option "fixedDecimals"
+
+2.1.0 / 2015-05-21
+==================
+
+  * add `.format` export
+  * add `.parse` export
+
+2.0.2 / 2015-05-20
+==================
+
+  * remove map recreation
+  * remove unnecessary object construction
+
+2.0.1 / 2015-05-07
+==================
+
+  * fix browserify require
+  * remove node.extend dependency
+
+2.0.0 / 2015-04-12
+==================
+
+  * add option "case"
+  * add option "thousandsSeparator"
+  * return "null" on invalid parse input
+  * support proper round-trip: bytes(bytes(num)) === num
+  * units no longer case sensitive when parsing
+
+1.0.0 / 2014-05-05
+==================
+
+ * add negative support. fixes #6
+
+0.3.0 / 2014-03-19
+==================
+
+ * added terabyte support
+
+0.2.1 / 2013-04-01
+==================
+
+  * add .component
+
+0.2.0 / 2012-10-28
+==================
+
+  * bytes(200).should.eql('200b')
+
+0.1.0 / 2012-07-04
+==================
+
+  * add bytes to string conversion [yields]

+(The MIT License)
+
+Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015 Jed Watson <jed.watson@me.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.

+# Bytes utility
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Utility to parse a string bytes (ex: `1TB`) to bytes (`1099511627776`) and vice-versa.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install bytes
+```
+
+## Usage
+
+```js
+var bytes = require('bytes');
+```
+
+#### bytes.format(number value, [options]): string｜null
+
+Format the given value in bytes into a string. If the value is negative, it is kept as such. If it is a float, it is
+ rounded.
+
+**Arguments**
+
+| Name    | Type     | Description        |
+|---------|----------|--------------------|
+| value   | `number` | Value in bytes     |
+| options | `Object` | Conversion options |
+
+**Options**
+
+| Property          | Type   | Description                                                                             |
+|-------------------|--------|-----------------------------------------------------------------------------------------|
+| decimalPlaces | `number`｜`null` | Maximum number of decimal places to include in output. Default value to `2`. |
+| fixedDecimals | `boolean`｜`null` | Whether to always display the maximum number of decimal places. Default value to `false` |
+| thousandsSeparator | `string`｜`null` | Example of values: `' '`, `','` and `.`... Default value to `''`. |
+| unit | `string`｜`null` | The unit in which the result will be returned (B/KB/MB/GB/TB). Default value to `''` (which means auto detect). |
+| unitSeparator | `string`｜`null` | Separator to use between number and unit. Default value to `''`. |
+
+**Returns**
+
+| Name    | Type             | Description                                     |
+|---------|------------------|-------------------------------------------------|
+| results | `string`｜`null` | Return null upon error. String value otherwise. |
+
+**Example**
+
+```js
+bytes(1024);
+// output: '1KB'
+
+bytes(1000);
+// output: '1000B'
+
+bytes(1000, {thousandsSeparator: ' '});
+// output: '1 000B'
+
+bytes(1024 * 1.7, {decimalPlaces: 0});
+// output: '2KB'
+
+bytes(1024, {unitSeparator: ' '});
+// output: '1 KB'
+
+```
+
+#### bytes.parse(string｜number value): number｜null
+
+Parse the string value into an integer in bytes. If no unit is given, or `value`
+is a number, it is assumed the value is in bytes.
+
+Supported units and abbreviations are as follows and are case-insensitive:
+
+  * `b` for bytes
+  * `kb` for kilobytes
+  * `mb` for megabytes
+  * `gb` for gigabytes
+  * `tb` for terabytes
+
+The units are in powers of two, not ten. This means 1kb = 1024b according to this parser.
+
+**Arguments**
+
+| Name          | Type   | Description        |
+|---------------|--------|--------------------|
+| value   | `string`｜`number` | String to parse, or number in bytes.   |
+
+**Returns**
+
+| Name    | Type        | Description             |
+|---------|-------------|-------------------------|
+| results | `number`｜`null` | Return null upon error. Value in bytes otherwise. |
+
+**Example**
+
+```js
+bytes('1KB');
+// output: 1024
+
+bytes('1024');
+// output: 1024
+
+bytes(1024);
+// output: 1024
+```
+
+## License 
+
+[MIT](LICENSE)
+
+[downloads-image]: https://img.shields.io/npm/dm/bytes.svg
+[downloads-url]: https://npmjs.org/package/bytes
+[npm-image]: https://img.shields.io/npm/v/bytes.svg
+[npm-url]: https://npmjs.org/package/bytes
+[travis-image]: https://img.shields.io/travis/visionmedia/bytes.js/master.svg
+[travis-url]: https://travis-ci.org/visionmedia/bytes.js
+[coveralls-image]: https://img.shields.io/coveralls/visionmedia/bytes.js/master.svg
+[coveralls-url]: https://coveralls.io/r/visionmedia/bytes.js?branch=master

+/*!
+ * bytes
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015 Jed Watson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = bytes;
+module.exports.format = format;
+module.exports.parse = parse;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;
+
+var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;
+
+var map = {
+  b:  1,
+  kb: 1 << 10,
+  mb: 1 << 20,
+  gb: 1 << 30,
+  tb: ((1 << 30) * 1024)
+};
+
+var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb)$/i;
+
+/**
+ * Convert the given value in bytes into a string or parse to string to an integer in bytes.
+ *
+ * @param {string|number} value
+ * @param {{
+ *  case: [string],
+ *  decimalPlaces: [number]
+ *  fixedDecimals: [boolean]
+ *  thousandsSeparator: [string]
+ *  unitSeparator: [string]
+ *  }} [options] bytes options.
+ *
+ * @returns {string|number|null}
+ */
+
+function bytes(value, options) {
+  if (typeof value === 'string') {
+    return parse(value);
+  }
+
+  if (typeof value === 'number') {
+    return format(value, options);
+  }
+
+  return null;
+}
+
+/**
+ * Format the given value in bytes into a string.
+ *
+ * If the value is negative, it is kept as such. If it is a float,
+ * it is rounded.
+ *
+ * @param {number} value
+ * @param {object} [options]
+ * @param {number} [options.decimalPlaces=2]
+ * @param {number} [options.fixedDecimals=false]
+ * @param {string} [options.thousandsSeparator=]
+ * @param {string} [options.unit=]
+ * @param {string} [options.unitSeparator=]
+ *
+ * @returns {string|null}
+ * @public
+ */
+
+function format(value, options) {
+  if (!Number.isFinite(value)) {
+    return null;
+  }
+
+  var mag = Math.abs(value);
+  var thousandsSeparator = (options && options.thousandsSeparator) || '';
+  var unitSeparator = (options && options.unitSeparator) || '';
+  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
+  var fixedDecimals = Boolean(options && options.fixedDecimals);
+  var unit = (options && options.unit) || '';
+
+  if (!unit || !map[unit.toLowerCase()]) {
+    if (mag >= map.tb) {
+      unit = 'TB';
+    } else if (mag >= map.gb) {
+      unit = 'GB';
+    } else if (mag >= map.mb) {
+      unit = 'MB';
+    } else if (mag >= map.kb) {
+      unit = 'KB';
+    } else {
+      unit = 'B';
+    }
+  }
+
+  var val = value / map[unit.toLowerCase()];
+  var str = val.toFixed(decimalPlaces);
+
+  if (!fixedDecimals) {
+    str = str.replace(formatDecimalsRegExp, '$1');
+  }
+
+  if (thousandsSeparator) {
+    str = str.replace(formatThousandsRegExp, thousandsSeparator);
+  }
+
+  return str + unitSeparator + unit;
+}
+
+/**
+ * Parse the string value into an integer in bytes.
+ *
+ * If no unit is given, it is assumed the value is in bytes.
+ *
+ * @param {number|string} val
+ *
+ * @returns {number|null}
+ * @public
+ */
+
+function parse(val) {
+  if (typeof val === 'number' && !isNaN(val)) {
+    return val;
+  }
+
+  if (typeof val !== 'string') {
+    return null;
+  }
+
+  // Test if the string passed is valid
+  var results = parseRegExp.exec(val);
+  var floatValue;
+  var unit = 'b';
+
+  if (!results) {
+    // Nothing could be extracted from the given string
+    floatValue = parseInt(val, 10);
+    unit = 'b'
+  } else {
+    // Retrieve the value and the unit
+    floatValue = parseFloat(results[1]);
+    unit = results[4].toLowerCase();
+  }
+
+  return Math.floor(map[unit] * floatValue);
+}

+{
+  "_from": "bytes@3.0.0",
+  "_id": "bytes@3.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
+  "_location": "/bytes",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "bytes@3.0.0",
+    "name": "bytes",
+    "escapedName": "bytes",
+    "rawSpec": "3.0.0",
+    "saveSpec": null,
+    "fetchSpec": "3.0.0"
+  },
+  "_requiredBy": [
+    "/body-parser",
+    "/raw-body"
+  ],
+  "_resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
+  "_shasum": "d32815404d689699f85a4ea4fa8755dd13a96048",
+  "_spec": "bytes@3.0.0",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/body-parser",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca",
+    "url": "http://tjholowaychuk.com"
+  },
+  "bugs": {
+    "url": "https://github.com/visionmedia/bytes.js/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Jed Watson",
+      "email": "jed.watson@me.com"
+    },
+    {
+      "name": "Théo FIDRY",
+      "email": "theo.fidry@gmail.com"
+    }
+  ],
+  "deprecated": false,
+  "description": "Utility to parse a string bytes to bytes and vice-versa",
+  "devDependencies": {
+    "mocha": "2.5.3",
+    "nyc": "10.3.2"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "files": [
+    "History.md",
+    "LICENSE",
+    "Readme.md",
+    "index.js"
+  ],
+  "homepage": "https://github.com/visionmedia/bytes.js#readme",
+  "keywords": [
+    "byte",
+    "bytes",
+    "utility",
+    "parse",
+    "parser",
+    "convert",
+    "converter"
+  ],
+  "license": "MIT",
+  "name": "bytes",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/visionmedia/bytes.js.git"
+  },
+  "scripts": {
+    "test": "mocha --check-leaks --reporter spec",
+    "test-ci": "nyc --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  },
+  "version": "3.0.0"
+}

+0.5.2 / 2016-12-08
+==================
+
+  * Fix `parse` to accept any linear whitespace character
+
+0.5.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+0.5.0 / 2014-10-11
+==================
+
+  * Add `parse` function
+
+0.4.0 / 2014-09-21
+==================
+
+  * Expand non-Unicode `filename` to the full ISO-8859-1 charset
+
+0.3.0 / 2014-09-20
+==================
+
+  * Add `fallback` option
+  * Add `type` option
+
+0.2.0 / 2014-09-19
+==================
+
+  * Reduce ambiguity of file names with hex escape in buggy browsers
+
+0.1.2 / 2014-09-19
+==================
+
+  * Fix periodic invalid Unicode filename header
+
+0.1.1 / 2014-09-19
+==================
+
+  * Fix invalid characters appearing in `filename*` parameter
+
+0.1.0 / 2014-09-18
+==================
+
+  * Make the `filename` argument optional
+
+0.0.0 / 2014-09-18
+==================
+
+  * Initial release

+(The MIT License)
+
+Copyright (c) 2014 Douglas Christopher Wilson
+
+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.

+# content-disposition
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create and parse HTTP `Content-Disposition` header
+
+## Installation
+
+```sh
+$ npm install content-disposition
+```
+
+## API
+
+```js
+var contentDisposition = require('content-disposition')
+```
+
+### contentDisposition(filename, options)
+
+Create an attachment `Content-Disposition` header value using the given file name,
+if supplied. The `filename` is optional and if no file name is desired, but you
+want to specify `options`, set `filename` to `undefined`.
+
+```js
+res.setHeader('Content-Disposition', contentDisposition('∫ maths.pdf'))
+```
+
+**note** HTTP headers are of the ISO-8859-1 character set. If you are writing this
+header through a means different from `setHeader` in Node.js, you'll want to specify
+the `'binary'` encoding in Node.js.
+
+#### Options
+
+`contentDisposition` accepts these properties in the options object.
+
+##### fallback
+
+If the `filename` option is outside ISO-8859-1, then the file name is actually
+stored in a supplemental field for clients that support Unicode file names and
+a ISO-8859-1 version of the file name is automatically generated.
+
+This specifies the ISO-8859-1 file name to override the automatic generation or
+disables the generation all together, defaults to `true`.
+
+  - A string will specify the ISO-8859-1 file name to use in place of automatic
+    generation.
+  - `false` will disable including a ISO-8859-1 file name and only include the
+    Unicode version (unless the file name is already ISO-8859-1).
+  - `true` will enable automatic generation if the file name is outside ISO-8859-1.
+
+If the `filename` option is ISO-8859-1 and this option is specified and has a
+different value, then the `filename` option is encoded in the extended field
+and this set as the fallback field, even though they are both ISO-8859-1.
+
+##### type
+
+Specifies the disposition type, defaults to `"attachment"`. This can also be
+`"inline"`, or any other value (all values except inline are treated like
+`attachment`, but can convey additional information if both parties agree to
+it). The type is normalized to lower-case.
+
+### contentDisposition.parse(string)
+
+```js
+var disposition = contentDisposition.parse('attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt');
+```
+
+Parse a `Content-Disposition` header string. This automatically handles extended
+("Unicode") parameters by decoding them and providing them under the standard
+parameter name. This will return an object with the following properties (examples
+are shown for the string `'attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt'`):
+
+ - `type`: The disposition type (always lower case). Example: `'attachment'`
+
+ - `parameters`: An object of the parameters in the disposition (name of parameter
+   always lower case and extended versions replace non-extended versions). Example:
+   `{filename: "€ rates.txt"}`
+
+## Examples
+
+### Send a file for download
+
+```js
+var contentDisposition = require('content-disposition')
+var destroy = require('destroy')
+var http = require('http')
+var onFinished = require('on-finished')
+
+var filePath = '/path/to/public/plans.pdf'
+
+http.createServer(function onRequest(req, res) {
+  // set headers
+  res.setHeader('Content-Type', 'application/pdf')
+  res.setHeader('Content-Disposition', contentDisposition(filePath))
+
+  // send file
+  var stream = fs.createReadStream(filePath)
+  stream.pipe(res)
+  onFinished(res, function (err) {
+    destroy(stream)
+  })
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## References
+
+- [RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1][rfc-2616]
+- [RFC 5987: Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters][rfc-5987]
+- [RFC 6266: Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)][rfc-6266]
+- [Test Cases for HTTP Content-Disposition header field (RFC 6266) and the Encodings defined in RFCs 2047, 2231 and 5987][tc-2231]
+
+[rfc-2616]: https://tools.ietf.org/html/rfc2616
+[rfc-5987]: https://tools.ietf.org/html/rfc5987
+[rfc-6266]: https://tools.ietf.org/html/rfc6266
+[tc-2231]: http://greenbytes.de/tech/tc2231/
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/content-disposition.svg?style=flat
+[npm-url]: https://npmjs.org/package/content-disposition
+[node-version-image]: https://img.shields.io/node/v/content-disposition.svg?style=flat
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/jshttp/content-disposition.svg?style=flat
+[travis-url]: https://travis-ci.org/jshttp/content-disposition
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-disposition.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/jshttp/content-disposition?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/content-disposition.svg?style=flat
+[downloads-url]: https://npmjs.org/package/content-disposition

+{
+  "_from": "content-disposition@0.5.2",
+  "_id": "content-disposition@0.5.2",
+  "_inBundle": false,
+  "_integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ=",
+  "_location": "/content-disposition",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "content-disposition@0.5.2",
+    "name": "content-disposition",
+    "escapedName": "content-disposition",
+    "rawSpec": "0.5.2",
+    "saveSpec": null,
+    "fetchSpec": "0.5.2"
+  },
+  "_requiredBy": [
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
+  "_shasum": "0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4",
+  "_spec": "content-disposition@0.5.2",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "bugs": {
+    "url": "https://github.com/jshttp/content-disposition/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Douglas Christopher Wilson",
+      "email": "doug@somethingdoug.com"
+    }
+  ],
+  "deprecated": false,
+  "description": "Create and parse Content-Disposition header",
+  "devDependencies": {
+    "eslint": "3.11.1",
+    "eslint-config-standard": "6.2.1",
+    "eslint-plugin-promise": "3.3.0",
+    "eslint-plugin-standard": "2.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "1.21.5"
+  },
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "homepage": "https://github.com/jshttp/content-disposition#readme",
+  "keywords": [
+    "content-disposition",
+    "http",
+    "rfc6266",
+    "res"
+  ],
+  "license": "MIT",
+  "name": "content-disposition",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jshttp/content-disposition.git"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  },
+  "version": "0.5.2"
+}

+1.0.4 / 2017-09-11
+==================
+
+  * perf: skip parameter parsing when no parameters
+
+1.0.3 / 2017-09-10
+==================
+
+  * perf: remove argument reassignment
+
+1.0.2 / 2016-05-09
+==================
+
+  * perf: enable strict mode
+
+1.0.1 / 2015-02-13
+==================
+
+  * Improve missing `Content-Type` header error message
+
+1.0.0 / 2015-02-01
+==================
+
+  * Initial implementation, derived from `media-typer@0.3.0`

+(The MIT License)
+
+Copyright (c) 2015 Douglas Christopher Wilson
+
+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.

+# content-type
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create and parse HTTP Content-Type header according to RFC 7231
+
+## Installation
+
+```sh
+$ npm install content-type
+```
+
+## API
+
+```js
+var contentType = require('content-type')
+```
+
+### contentType.parse(string)
+
+```js
+var obj = contentType.parse('image/svg+xml; charset=utf-8')
+```
+
+Parse a content type string. This will return an object with the following
+properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (the type and subtype, always lower case).
+   Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of parameter
+   always lower case). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the string is missing or invalid.
+
+### contentType.parse(req)
+
+```js
+var obj = contentType.parse(req)
+```
+
+Parse the `content-type` header from the given `req`. Short-cut for
+`contentType.parse(req.headers['content-type'])`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.parse(res)
+
+```js
+var obj = contentType.parse(res)
+```
+
+Parse the `content-type` header set on the given `res`. Short-cut for
+`contentType.parse(res.getHeader('content-type'))`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.format(obj)
+
+```js
+var str = contentType.format({type: 'image/svg+xml'})
+```
+
+Format an object into a content type string. This will return a string of the
+content type for the given object with the following properties (examples are
+shown that produce the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (will be lower-cased). Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of the
+   parameter will be lower-cased). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the object contains an invalid type or parameter names.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/content-type.svg
+[npm-url]: https://npmjs.org/package/content-type
+[node-version-image]: https://img.shields.io/node/v/content-type.svg
+[node-version-url]: http://nodejs.org/download/
+[travis-image]: https://img.shields.io/travis/jshttp/content-type/master.svg
+[travis-url]: https://travis-ci.org/jshttp/content-type
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-type/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/content-type
+[downloads-image]: https://img.shields.io/npm/dm/content-type.svg
+[downloads-url]: https://npmjs.org/package/content-type

+/*!
+ * content-type
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to match *( ";" parameter ) in RFC 7231 sec 3.1.1.1
+ *
+ * parameter     = token "=" ( token / quoted-string )
+ * token         = 1*tchar
+ * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+ *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+ *               / DIGIT / ALPHA
+ *               ; any VCHAR, except delimiters
+ * quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
+ * qdtext        = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
+ * obs-text      = %x80-FF
+ * quoted-pair   = "\" ( HTAB / SP / VCHAR / obs-text )
+ */
+var PARAM_REGEXP = /; *([!#$%&'*+.^_`|~0-9A-Za-z-]+) *= *("(?:[\u000b\u0020\u0021\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u000b\u0020-\u00ff])*"|[!#$%&'*+.^_`|~0-9A-Za-z-]+) */g
+var TEXT_REGEXP = /^[\u000b\u0020-\u007e\u0080-\u00ff]+$/
+var TOKEN_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * RegExp to match quoted-pair in RFC 7230 sec 3.2.6
+ *
+ * quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
+ * obs-text    = %x80-FF
+ */
+var QESC_REGEXP = /\\([\u000b\u0020-\u00ff])/g
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 7230 sec 3.2.6
+ */
+var QUOTE_REGEXP = /([\\"])/g
+
+/**
+ * RegExp to match type in RFC 7231 sec 3.1.1.1
+ *
+ * media-type = type "/" subtype
+ * type       = token
+ * subtype    = token
+ */
+var TYPE_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+\/[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.format = format
+exports.parse = parse
+
+/**
+ * Format object to media type.
+ *
+ * @param {object} obj
+ * @return {string}
+ * @public
+ */
+
+function format (obj) {
+  if (!obj || typeof obj !== 'object') {
+    throw new TypeError('argument obj is required')
+  }
+
+  var parameters = obj.parameters
+  var type = obj.type
+
+  if (!type || !TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  var string = type
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      if (!TOKEN_REGEXP.test(param)) {
+        throw new TypeError('invalid parameter name')
+      }
+
+      string += '; ' + param + '=' + qstring(parameters[param])
+    }
+  }
+
+  return string
+}
+
+/**
+ * Parse media type to object.
+ *
+ * @param {string|object} string
+ * @return {Object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  // support req/res-like objects as argument
+  var header = typeof string === 'object'
+    ? getcontenttype(string)
+    : string
+
+  if (typeof header !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  var index = header.indexOf(';')
+  var type = index !== -1
+    ? header.substr(0, index).trim()
+    : header.trim()
+
+  if (!TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid media type')
+  }
+
+  var obj = new ContentType(type.toLowerCase())
+
+  // parse parameters
+  if (index !== -1) {
+    var key
+    var match
+    var value
+
+    PARAM_REGEXP.lastIndex = index
+
+    while ((match = PARAM_REGEXP.exec(header))) {
+      if (match.index !== index) {
+        throw new TypeError('invalid parameter format')
+      }
+
+      index += match[0].length
+      key = match[1].toLowerCase()
+      value = match[2]
+
+      if (value[0] === '"') {
+        // remove quotes and escapes
+        value = value
+          .substr(1, value.length - 2)
+          .replace(QESC_REGEXP, '$1')
+      }
+
+      obj.parameters[key] = value
+    }
+
+    if (index !== header.length) {
+      throw new TypeError('invalid parameter format')
+    }
+  }
+
+  return obj
+}
+
+/**
+ * Get content-type from req/res objects.
+ *
+ * @param {object}
+ * @return {Object}
+ * @private
+ */
+
+function getcontenttype (obj) {
+  var header
+
+  if (typeof obj.getHeader === 'function') {
+    // res-like
+    header = obj.getHeader('content-type')
+  } else if (typeof obj.headers === 'object') {
+    // req-like
+    header = obj.headers && obj.headers['content-type']
+  }
+
+  if (typeof header !== 'string') {
+    throw new TypeError('content-type header is missing from object')
+  }
+
+  return header
+}
+
+/**
+ * Quote a string if necessary.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function qstring (val) {
+  var str = String(val)
+
+  // no need to quote tokens
+  if (TOKEN_REGEXP.test(str)) {
+    return str
+  }
+
+  if (str.length > 0 && !TEXT_REGEXP.test(str)) {
+    throw new TypeError('invalid parameter value')
+  }
+
+  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
+}
+
+/**
+ * Class to represent a content type.
+ * @private
+ */
+function ContentType (type) {
+  this.parameters = Object.create(null)
+  this.type = type
+}

+{
+  "_from": "content-type@~1.0.4",
+  "_id": "content-type@1.0.4",
+  "_inBundle": false,
+  "_integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==",
+  "_location": "/content-type",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "content-type@~1.0.4",
+    "name": "content-type",
+    "escapedName": "content-type",
+    "rawSpec": "~1.0.4",
+    "saveSpec": null,
+    "fetchSpec": "~1.0.4"
+  },
+  "_requiredBy": [
+    "/body-parser",
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
+  "_shasum": "e138cc75e040c727b1966fe5e5f8c9aee256fe3b",
+  "_spec": "content-type@~1.0.4",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "author": {
+    "name": "Douglas Christopher Wilson",
+    "email": "doug@somethingdoug.com"
+  },
+  "bugs": {
+    "url": "https://github.com/jshttp/content-type/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Create and parse HTTP Content-Type header",
+  "devDependencies": {
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "~1.21.5"
+  },
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "homepage": "https://github.com/jshttp/content-type#readme",
+  "keywords": [
+    "content-type",
+    "http",
+    "req",
+    "res",
+    "rfc7231"
+  ],
+  "license": "MIT",
+  "name": "content-type",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jshttp/content-type.git"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/"
+  },
+  "version": "1.0.4"
+}

+support
+test
+examples
+*.sock

+1.0.6 / 2015-02-03
+==================
+
+* use `npm test` instead of `make test` to run tests
+* clearer assertion messages when checking input
+
+
+1.0.5 / 2014-09-05
+==================
+
+* add license to package.json
+
+1.0.4 / 2014-06-25
+==================
+
+ * corrected avoidance of timing attacks (thanks @tenbits!)
+
+1.0.3 / 2014-01-28
+==================
+
+ * [incorrect] fix for timing attacks
+
+1.0.2 / 2014-01-28
+==================
+
+ * fix missing repository warning
+ * fix typo in test
+
+1.0.1 / 2013-04-15
+==================
+
+  * Revert "Changed underlying HMAC algo. to sha512."
+  * Revert "Fix for timing attacks on MAC verification."
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release

+
+# cookie-signature
+
+  Sign and unsign cookies.
+
+## Example
+
+```js
+var cookie = require('cookie-signature');
+
+var val = cookie.sign('hello', 'tobiiscool');
+val.should.equal('hello.DGDUkGlIkCzPz+C0B064FNgHdEjox7ch8tOBGslZ5QI');
+
+var val = cookie.sign('hello', 'tobiiscool');
+cookie.unsign(val, 'tobiiscool').should.equal('hello');
+cookie.unsign(val, 'luna').should.be.false;
+```
+
+## License 
+
+(The MIT License)
+
+Copyright (c) 2012 LearnBoost <tj@learnboost.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.
\ No newline at end of file

+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Sign the given `val` with `secret`.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String}
+ * @api private
+ */
+
+exports.sign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Cookie value must be provided as a string.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  return val + '.' + crypto
+    .createHmac('sha256', secret)
+    .update(val)
+    .digest('base64')
+    .replace(/\=+$/, '');
+};
+
+/**
+ * Unsign and decode the given `val` with `secret`,
+ * returning `false` if the signature is invalid.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String|Boolean}
+ * @api private
+ */
+
+exports.unsign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Signed cookie string must be provided.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  var str = val.slice(0, val.lastIndexOf('.'))
+    , mac = exports.sign(str, secret);
+  
+  return sha1(mac) == sha1(val) ? str : false;
+};
+
+/**
+ * Private
+ */
+
+function sha1(str){
+  return crypto.createHash('sha1').update(str).digest('hex');
+}

+{
+  "_from": "cookie-signature@1.0.6",
+  "_id": "cookie-signature@1.0.6",
+  "_inBundle": false,
+  "_integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw=",
+  "_location": "/cookie-signature",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "cookie-signature@1.0.6",
+    "name": "cookie-signature",
+    "escapedName": "cookie-signature",
+    "rawSpec": "1.0.6",
+    "saveSpec": null,
+    "fetchSpec": "1.0.6"
+  },
+  "_requiredBy": [
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+  "_shasum": "e303a882b342cc3ee8ca513a79999734dab3ae2c",
+  "_spec": "cookie-signature@1.0.6",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@learnboost.com"
+  },
+  "bugs": {
+    "url": "https://github.com/visionmedia/node-cookie-signature/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Sign and unsign cookies",
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "homepage": "https://github.com/visionmedia/node-cookie-signature#readme",
+  "keywords": [
+    "cookie",
+    "sign",
+    "unsign"
+  ],
+  "license": "MIT",
+  "main": "index",
+  "name": "cookie-signature",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/visionmedia/node-cookie-signature.git"
+  },
+  "scripts": {
+    "test": "mocha --require should --reporter spec"
+  },
+  "version": "1.0.6"
+}

+0.3.1 / 2016-05-26
+==================
+
+  * Fix `sameSite: true` to work with draft-7 clients
+    - `true` now sends `SameSite=Strict` instead of `SameSite`
+
+0.3.0 / 2016-05-26
+==================
+
+  * Add `sameSite` option
+    - Replaces `firstPartyOnly` option, never implemented by browsers
+  * Improve error message when `encode` is not a function
+  * Improve error message when `expires` is not a `Date`
+
+0.2.4 / 2016-05-20
+==================
+
+  * perf: enable strict mode
+  * perf: use for loop in parse
+  * perf: use string concatination for serialization
+
+0.2.3 / 2015-10-25
+==================
+
+  * Fix cookie `Max-Age` to never be a floating point number
+
+0.2.2 / 2015-09-17
+==================
+
+  * Fix regression when setting empty cookie value
+    - Ease the new restriction, which is just basic header-level validation
+  * Fix typo in invalid value errors
+
+0.2.1 / 2015-09-17
+==================
+
+  * Throw on invalid values provided to `serialize`
+    - Ensures the resulting string is a valid HTTP header value
+
+0.2.0 / 2015-08-13
+==================
+
+  * Add `firstPartyOnly` option
+  * Throw better error for invalid argument to parse
+  * perf: hoist regular expression
+
+0.1.5 / 2015-09-17
+==================
+
+  * Fix regression when setting empty cookie value
+    - Ease the new restriction, which is just basic header-level validation
+  * Fix typo in invalid value errors
+
+0.1.4 / 2015-09-17
+==================
+
+  * Throw better error for invalid argument to parse
+  * Throw on invalid values provided to `serialize`
+    - Ensures the resulting string is a valid HTTP header value
+
+0.1.3 / 2015-05-19
+==================
+
+  * Reduce the scope of try-catch deopt
+  * Remove argument reassignments
+
+0.1.2 / 2014-04-16
+==================
+
+  * Remove unnecessary files from npm package
+
+0.1.1 / 2014-02-23
+==================
+
+  * Fix bad parse when cookie value contained a comma
+  * Fix support for `maxAge` of `0`
+
+0.1.0 / 2013-05-01
+==================
+
+  * Add `decode` option
+  * Add `encode` option
+
+0.0.6 / 2013-04-08
+==================
+
+  * Ignore cookie parts missing `=`
+
+0.0.5 / 2012-10-29
+==================
+
+  * Return raw cookie value if value unescape errors
+
+0.0.4 / 2012-06-21
+==================
+
+  * Use encode/decodeURIComponent for cookie encoding/decoding
+    - Improve server/client interoperability
+
+0.0.3 / 2012-06-06
+==================
+
+  * Only escape special characters per the cookie RFC
+
+0.0.2 / 2012-06-01
+==================
+
+  * Fix `maxAge` option to not throw error
+
+0.0.1 / 2012-05-28
+==================
+
+  * Add more tests
+
+0.0.0 / 2012-05-28
+==================
+
+  * Initial release

+(The MIT License)
+
+Copyright (c) 2012-2014 Roman Shtylman <shtylman@gmail.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.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.
+

+# cookie
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Basic HTTP cookie parser and serializer for HTTP servers.
+
+## Installation
+
+```sh
+$ npm install cookie
+```
+
+## API
+
+```js
+var cookie = require('cookie');
+```
+
+### cookie.parse(str, options)
+
+Parse an HTTP `Cookie` header string and returning an object of all cookie name-value pairs.
+The `str` argument is the string representing a `Cookie` header value and `options` is an
+optional object containing additional parsing options.
+
+```js
+var cookies = cookie.parse('foo=bar; equation=E%3Dmc%5E2');
+// { foo: 'bar', equation: 'E=mc^2' }
+```
+
+#### Options
+
+`cookie.parse` accepts these properties in the options object.
+
+##### decode
+
+Specifies a function that will be used to decode a cookie's value. Since the value of a cookie
+has a limited character set (and must be a simple string), this function can be used to decode
+a previously-encoded cookie value into a JavaScript string or other object.
+
+The default function is the global `decodeURIComponent`, which will decode any URL-encoded
+sequences into their byte representations.
+
+**note** if an error is thrown from this function, the original, non-decoded cookie value will
+be returned as the cookie's value.
+
+### cookie.serialize(name, value, options)
+
+Serialize a cookie name-value pair into a `Set-Cookie` header string. The `name` argument is the
+name for the cookie, the `value` argument is the value to set the cookie to, and the `options`
+argument is an optional object containing additional serialization options.
+
+```js
+var setCookie = cookie.serialize('foo', 'bar');
+// foo=bar
+```
+
+#### Options
+
+`cookie.serialize` accepts these properties in the options object.
+
+##### domain
+
+Specifies the value for the [`Domain` `Set-Cookie` attribute][rfc-6266-5.2.3]. By default, no
+domain is set, and most clients will consider the cookie to apply to only the current domain.
+
+##### encode
+
+Specifies a function that will be used to encode a cookie's value. Since value of a cookie
+has a limited character set (and must be a simple string), this function can be used to encode
+a value into a string suited for a cookie's value.
+
+The default function is the global `ecodeURIComponent`, which will encode a JavaScript string
+into UTF-8 byte sequences and then URL-encode any that fall outside of the cookie range.
+
+##### expires
+
+Specifies the `Date` object to be the value for the [`Expires` `Set-Cookie` attribute][rfc-6266-5.2.1].
+By default, no expiration is set, and most clients will consider this a "non-persistent cookie" and
+will delete it on a condition like exiting a web browser application.
+
+**note** the [cookie storage model specification][rfc-6266-5.3] states that if both `expires` and
+`magAge` are set, then `maxAge` takes precedence, but it is possiblke not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### httpOnly
+
+Specifies the `boolean` value for the [`HttpOnly` `Set-Cookie` attribute][rfc-6266-5.2.6]. When truthy,
+the `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not allow client-side
+JavaScript to see the cookie in `document.cookie`.
+
+##### maxAge
+
+Specifies the `number` (in seconds) to be the value for the [`Max-Age` `Set-Cookie` attribute][rfc-6266-5.2.2].
+The given number will be converted to an integer by rounding down. By default, no maximum age is set.
+
+**note** the [cookie storage model specification][rfc-6266-5.3] states that if both `expires` and
+`magAge` are set, then `maxAge` takes precedence, but it is possiblke not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### path
+
+Specifies the value for the [`Path` `Set-Cookie` attribute][rfc-6266-5.2.4]. By default, the path
+is considered the ["default path"][rfc-6266-5.1.4]. By default, no maximum age is set, and most
+clients will consider this a "non-persistent cookie" and will delete it on a condition like exiting
+a web browser application.
+
+##### sameSite
+
+Specifies the `boolean` or `string` to be the value for the [`SameSite` `Set-Cookie` attribute][draft-west-first-party-cookies-07].
+
+  - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+  - `false` will not set the `SameSite` attribute.
+  - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement.
+  - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+
+More information about the different enforcement levels can be found in the specification
+https://tools.ietf.org/html/draft-west-first-party-cookies-07#section-4.1.1
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+##### secure
+
+Specifies the `boolean` value for the [`Secure` `Set-Cookie` attribute][rfc-6266-5.2.5]. When truthy,
+the `Secure` attribute is set, otherwise it is not. By default, the `Secure` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not send the cookie back to
+the server in the future if the browser does not have an HTTPS connection.
+
+## Example
+
+The following example uses this module in conjunction with the Node.js core HTTP server
+to prompt a user for their name and display it back on future visits.
+
+```js
+var cookie = require('cookie');
+var escapeHtml = require('escape-html');
+var http = require('http');
+var url = require('url');
+
+function onRequest(req, res) {
+  // Parse the query string
+  var query = url.parse(req.url, true, true).query;
+
+  if (query && query.name) {
+    // Set a new cookie with the name
+    res.setHeader('Set-Cookie', cookie.serialize('name', String(query.name), {
+      httpOnly: true,
+      maxAge: 60 * 60 * 24 * 7 // 1 week
+    }));
+
+    // Redirect back after setting cookie
+    res.statusCode = 302;
+    res.setHeader('Location', req.headers.referer || '/');
+    res.end();
+    return;
+  }
+
+  // Parse the cookies on the request
+  var cookies = cookie.parse(req.headers.cookie || '');
+
+  // Get the visitor name set in the cookie
+  var name = cookies.name;
+
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8');
+
+  if (name) {
+    res.write('<p>Welcome back, <b>' + escapeHtml(name) + '</b>!</p>');
+  } else {
+    res.write('<p>Hello, new visitor!</p>');
+  }
+
+  res.write('<form method="GET">');
+  res.write('<input placeholder="enter your name" name="name"> <input type="submit" value="Set Name">');
+  res.end('</form');
+}
+
+http.createServer(onRequest).listen(3000);
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## References
+
+- [RFC 6266: HTTP State Management Mechanism][rfc-6266]
+- [Same-site Cookies][draft-west-first-party-cookies-07]
+
+[draft-west-first-party-cookies-07]: https://tools.ietf.org/html/draft-west-first-party-cookies-07
+[rfc-6266]: https://tools.ietf.org/html/rfc6266
+[rfc-6266-5.1.4]: https://tools.ietf.org/html/rfc6266#section-5.1.4
+[rfc-6266-5.2.1]: https://tools.ietf.org/html/rfc6266#section-5.2.1
+[rfc-6266-5.2.2]: https://tools.ietf.org/html/rfc6266#section-5.2.2
+[rfc-6266-5.2.3]: https://tools.ietf.org/html/rfc6266#section-5.2.3
+[rfc-6266-5.2.4]: https://tools.ietf.org/html/rfc6266#section-5.2.4
+[rfc-6266-5.3]: https://tools.ietf.org/html/rfc6266#section-5.3
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/cookie.svg
+[npm-url]: https://npmjs.org/package/cookie
+[node-version-image]: https://img.shields.io/node/v/cookie.svg
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/jshttp/cookie/master.svg
+[travis-url]: https://travis-ci.org/jshttp/cookie
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/cookie/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/cookie?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/cookie.svg
+[downloads-url]: https://npmjs.org/package/cookie

+/*!
+ * cookie
+ * Copyright(c) 2012-2014 Roman Shtylman
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.parse = parse;
+exports.serialize = serialize;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var decode = decodeURIComponent;
+var encode = encodeURIComponent;
+var pairSplitRegExp = /; */;
+
+/**
+ * RegExp to match field-content in RFC 7230 sec 3.2
+ *
+ * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
+ * field-vchar   = VCHAR / obs-text
+ * obs-text      = %x80-FF
+ */
+
+var fieldContentRegExp = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/;
+
+/**
+ * Parse a cookie header.
+ *
+ * Parse the given cookie header string into an object
+ * The object has the various cookies as keys(names) => values
+ *
+ * @param {string} str
+ * @param {object} [options]
+ * @return {object}
+ * @public
+ */
+
+function parse(str, options) {
+  if (typeof str !== 'string') {
+    throw new TypeError('argument str must be a string');
+  }
+
+  var obj = {}
+  var opt = options || {};
+  var pairs = str.split(pairSplitRegExp);
+  var dec = opt.decode || decode;
+
+  for (var i = 0; i < pairs.length; i++) {
+    var pair = pairs[i];
+    var eq_idx = pair.indexOf('=');
+
+    // skip things that don't look like key=value
+    if (eq_idx < 0) {
+      continue;
+    }
+
+    var key = pair.substr(0, eq_idx).trim()
+    var val = pair.substr(++eq_idx, pair.length).trim();
+
+    // quoted values
+    if ('"' == val[0]) {
+      val = val.slice(1, -1);
+    }
+
+    // only assign once
+    if (undefined == obj[key]) {
+      obj[key] = tryDecode(val, dec);
+    }
+  }
+
+  return obj;
+}
+
+/**
+ * Serialize data into a cookie header.
+ *
+ * Serialize the a name value pair into a cookie string suitable for
+ * http headers. An optional options object specified cookie parameters.
+ *
+ * serialize('foo', 'bar', { httpOnly: true })
+ *   => "foo=bar; httpOnly"
+ *
+ * @param {string} name
+ * @param {string} val
+ * @param {object} [options]
+ * @return {string}
+ * @public
+ */
+
+function serialize(name, val, options) {
+  var opt = options || {};
+  var enc = opt.encode || encode;
+
+  if (typeof enc !== 'function') {
+    throw new TypeError('option encode is invalid');
+  }
+
+  if (!fieldContentRegExp.test(name)) {
+    throw new TypeError('argument name is invalid');
+  }
+
+  var value = enc(val);
+
+  if (value && !fieldContentRegExp.test(value)) {
+    throw new TypeError('argument val is invalid');
+  }
+
+  var str = name + '=' + value;
+
+  if (null != opt.maxAge) {
+    var maxAge = opt.maxAge - 0;
+    if (isNaN(maxAge)) throw new Error('maxAge should be a Number');
+    str += '; Max-Age=' + Math.floor(maxAge);
+  }
+
+  if (opt.domain) {
+    if (!fieldContentRegExp.test(opt.domain)) {
+      throw new TypeError('option domain is invalid');
+    }
+
+    str += '; Domain=' + opt.domain;
+  }
+
+  if (opt.path) {
+    if (!fieldContentRegExp.test(opt.path)) {
+      throw new TypeError('option path is invalid');
+    }
+
+    str += '; Path=' + opt.path;
+  }
+
+  if (opt.expires) {
+    if (typeof opt.expires.toUTCString !== 'function') {
+      throw new TypeError('option expires is invalid');
+    }
+
+    str += '; Expires=' + opt.expires.toUTCString();
+  }
+
+  if (opt.httpOnly) {
+    str += '; HttpOnly';
+  }
+
+  if (opt.secure) {
+    str += '; Secure';
+  }
+
+  if (opt.sameSite) {
+    var sameSite = typeof opt.sameSite === 'string'
+      ? opt.sameSite.toLowerCase() : opt.sameSite;
+
+    switch (sameSite) {
+      case true:
+        str += '; SameSite=Strict';
+        break;
+      case 'lax':
+        str += '; SameSite=Lax';
+        break;
+      case 'strict':
+        str += '; SameSite=Strict';
+        break;
+      default:
+        throw new TypeError('option sameSite is invalid');
+    }
+  }
+
+  return str;
+}
+
+/**
+ * Try decoding a string using a decoding function.
+ *
+ * @param {string} str
+ * @param {function} decode
+ * @private
+ */
+
+function tryDecode(str, decode) {
+  try {
+    return decode(str);
+  } catch (e) {
+    return str;
+  }
+}

+{
+  "_from": "cookie@0.3.1",
+  "_id": "cookie@0.3.1",
+  "_inBundle": false,
+  "_integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=",
+  "_location": "/cookie",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "cookie@0.3.1",
+    "name": "cookie",
+    "escapedName": "cookie",
+    "rawSpec": "0.3.1",
+    "saveSpec": null,
+    "fetchSpec": "0.3.1"
+  },
+  "_requiredBy": [
+    "/express"
+  ],
+  "_resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
+  "_shasum": "e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb",
+  "_spec": "cookie@0.3.1",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "author": {
+    "name": "Roman Shtylman",
+    "email": "shtylman@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/jshttp/cookie/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Douglas Christopher Wilson",
+      "email": "doug@somethingdoug.com"
+    }
+  ],
+  "deprecated": false,
+  "description": "HTTP server cookie parsing and serialization",
+  "devDependencies": {
+    "istanbul": "0.4.3",
+    "mocha": "1.21.5"
+  },
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "homepage": "https://github.com/jshttp/cookie#readme",
+  "keywords": [
+    "cookie",
+    "cookies"
+  ],
+  "license": "MIT",
+  "name": "cookie",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jshttp/cookie.git"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/"
+  },
+  "version": "0.3.1"
+}

+repo_token: SIAeZjKYlHK74rbcFvNHMUzjRiMpflxve

+{
+  "env": {
+    "browser": true,
+    "node": true
+  },
+  "rules": {
+    "no-console": 0,
+    "no-empty": [1, { "allowEmptyCatch": true }]
+  },
+  "extends": "eslint:recommended"
+}

+support
+test
+examples
+example
+*.sock
+dist
+yarn.lock
+coverage
+bower.json

+
+language: node_js
+node_js:
+  - "6"
+  - "5"
+  - "4"
+
+install:
+  - make node_modules
+
+script:
+  - make lint
+  - make test
+  - make coveralls

+(The MIT License)
+
+Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
+
+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.
+

+# get Makefile directory name: http://stackoverflow.com/a/5982798/376773
+THIS_MAKEFILE_PATH:=$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
+THIS_DIR:=$(shell cd $(dir $(THIS_MAKEFILE_PATH));pwd)
+
+# BIN directory
+BIN := $(THIS_DIR)/node_modules/.bin
+
+# Path
+PATH := node_modules/.bin:$(PATH)
+SHELL := /bin/bash
+
+# applications
+NODE ?= $(shell which node)
+YARN ?= $(shell which yarn)
+PKG ?= $(if $(YARN),$(YARN),$(NODE) $(shell which npm))
+BROWSERIFY ?= $(NODE) $(BIN)/browserify
+
+.FORCE:
+
+install: node_modules
+
+node_modules: package.json
+	@NODE_ENV= $(PKG) install
+	@touch node_modules
+
+lint: .FORCE
+	eslint browser.js debug.js index.js node.js
+
+test-node: .FORCE
+	istanbul cover node_modules/mocha/bin/_mocha -- test/**.js
+
+test-browser: .FORCE
+	mkdir -p dist
+
+	@$(BROWSERIFY) \
+		--standalone debug \
+		. > dist/debug.js
+
+	karma start --single-run
+	rimraf dist
+
+test: .FORCE
+	concurrently \
+		"make test-node" \
+		"make test-browser"
+
+coveralls:
+	cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
+
+.PHONY: all install clean distclean

+{
+  "name": "debug",
+  "repo": "visionmedia/debug",
+  "description": "small debugging utility",
+  "version": "2.6.9",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "main": "src/browser.js",
+  "scripts": [
+    "src/browser.js",
+    "src/debug.js"
+  ],
+  "dependencies": {
+    "rauchg/ms.js": "0.7.1"
+  }
+}

+// Karma configuration
+// Generated on Fri Dec 16 2016 13:09:51 GMT+0000 (UTC)
+
+module.exports = function(config) {
+  config.set({
+
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: '',
+
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha', 'chai', 'sinon'],
+
+
+    // list of files / patterns to load in the browser
+    files: [
+      'dist/debug.js',
+      'test/*spec.js'
+    ],
+
+
+    // list of files to exclude
+    exclude: [
+      'src/node.js'
+    ],
+
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['progress'],
+
+
+    // web server port
+    port: 9876,
+
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['PhantomJS'],
+
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: false,
+
+    // Concurrency level
+    // how many browser should be started simultaneous
+    concurrency: Infinity
+  })
+}

+module.exports = require('./src/node');

+{
+  "_from": "debug@2.6.9",
+  "_id": "debug@2.6.9",
+  "_inBundle": false,
+  "_integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+  "_location": "/debug",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "debug@2.6.9",
+    "name": "debug",
+    "escapedName": "debug",
+    "rawSpec": "2.6.9",
+    "saveSpec": null,
+    "fetchSpec": "2.6.9"
+  },
+  "_requiredBy": [
+    "/body-parser",
+    "/express",
+    "/finalhandler",
+    "/send"
+  ],
+  "_resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+  "_shasum": "5d128515df134ff327e90a4c93f4e077a536341f",
+  "_spec": "debug@2.6.9",
+  "_where": "/Users/jeminlee/git-projects/node-practice/express-demo/node_modules/express",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca"
+  },
+  "browser": "./src/browser.js",
+  "bugs": {
+    "url": "https://github.com/visionmedia/debug/issues"
+  },
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "debug/index.js": "browser.js",
+      "debug/debug.js": "debug.js"
+    }
+  },
+  "contributors": [
+    {
+      "name": "Nathan Rajlich",
+      "email": "nathan@tootallnate.net",
+      "url": "http://n8.io"
+    },
+    {
+      "name": "Andrew Rhyne",
+      "email": "rhyneandrew@gmail.com"
+    }
+  ],
+  "dependencies": {
+    "ms": "2.0.0"
+  },
+  "deprecated": false,
+  "description": "small debugging utility",
+  "devDependencies": {
+    "browserify": "9.0.3",
+    "chai": "^3.5.0",
+    "concurrently": "^3.1.0",
+    "coveralls": "^2.11.15",
+    "eslint": "^3.12.1",
+    "istanbul": "^0.4.5",
+    "karma": "^1.3.0",
+    "karma-chai": "^0.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-phantomjs-launcher": "^1.0.2",
+    "karma-sinon": "^1.0.5",
+    "mocha": "^3.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "rimraf": "^2.5.4",
+    "sinon": "^1.17.6",
+    "sinon-chai": "^2.8.0"
+  },
+  "homepage": "https://github.com/visionmedia/debug#readme",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "license": "MIT",
+  "main": "./src/index.js",
+  "name": "debug",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/visionmedia/debug.git"
+  },
+  "version": "2.6.9"
+}

+/**
+ * This is the web browser implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = require('./debug');
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = 'undefined' != typeof chrome
+               && 'undefined' != typeof chrome.storage
+                  ? chrome.storage.local
+                  : localstorage();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+  'lightseagreen',
+  'forestgreen',
+  'goldenrod',
+  'dodgerblue',
+  'darkorchid',
+  'crimson'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+function useColors() {
+  // NB: In an Electron preload script, document will be defined but not fully
+  // initialized. Since we know we're in Chrome, we'll just detect this case
+  // explicitly
+  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
+    return true;
+  }
+
+  // is webkit? http://stackoverflow.com/a/16459606/376773
+  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+    // is firebug? http://stackoverflow.com/a/398120/376773
+    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+    // is firefox >= v31?
+    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+    // double check webkit in userAgent just in case we are in a worker
+    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+exports.formatters.j = function(v) {
+  try {
+    return JSON.stringify(v);
+  } catch (err) {
+    return '[UnexpectedJSONParseError]: ' + err.message;
+  }
+};
+
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+  var useColors = this.useColors;
+
+  args[0] = (useColors ? '%c' : '')
+    + this.namespace
+    + (useColors ? ' %c' : ' ')
+    + args[0]
+    + (useColors ? '%c ' : ' ')
+    + '+' + exports.humanize(this.diff);
+
+  if (!useColors) return;
+
+  var c = 'color: ' + this.color;
+  args.splice(1, 0, c, 'color: inherit')
+
+  // the final "%c" is somewhat tricky, because there could be other
+  // arguments passed either before or after the %c, so we need to
+  // figure out the correct index to insert the CSS into
+  var index = 0;
+  var lastC = 0;
+  args[0].replace(/%[a-zA-Z%]/g, function(match) {
+    if ('%%' === match) return;
+    index++;
+    if ('%c' === match) {
+      // we only are interested in the *last* %c
+      // (the user may have provided their own)
+      lastC = index;
+    }
+  });
+
+  args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+
+function log() {
+  // this hackery is required for IE8/9, where
+  // the `console.log` function doesn't have 'apply'
+  return 'object' === typeof console
+    && console.log
+    && Function.prototype.apply.call(console.log, console, arguments);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  try {
+    if (null == namespaces) {
+      exports.storage.removeItem('debug');
+    } else {
+      exports.storage.debug = namespaces;
+    }
+  } catch(e) {}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  var r;
+  try {
+    r = exports.storage.debug;
+  } catch(e) {}
+
+  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+  if (!r && typeof process !== 'undefined' && 'env' in process) {
+    r = process.env.DEBUG;
+  }
+
+  return r;
+}
+
+/**
+ * Enable namespaces listed in `localStorage.debug` initially.
+ */
+
+exports.enable(load());
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+  try {
+    return window.localStorage;
+  } catch (e) {}
+}

+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
+exports.coerce = coerce;
+exports.disable = disable;
+exports.enable = enable;
+exports.enabled = enabled;
+exports.humanize = require('ms');
+
+/**
+ * The currently active debug mode names, and names to skip.
+ */
+
+exports.names = [];
+exports.skips = [];
+
+/**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+ */
+
+exports.formatters = {};
+
+/**
+ * Previous log timestamp.
+ */
+
+var prevTime;
+
+/**
+ * Select a color.
+ * @param {String} namespace
+ * @return {Number}
+ * @api private
+ */
+
+function selectColor(namespace) {
+  var hash = 0, i;
+
+  for (i in namespace) {
+    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
+    hash |= 0; // Convert to 32bit integer
+  }
+
+  return exports.colors[Math.abs(hash) % exports.colors.length];
+}
+
+/**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+
+function createDebug(namespace) {
+
+  function debug() {
+    // disabled?
+    if (!debug.enabled) return;
+
+    var self = debug;
+
+    // set `diff` timestamp
+    var curr = +new Date();
+    var ms = curr - (prevTime || curr);
+    self.diff = ms;
+    self.prev = prevTime;
+    self.curr = curr;
+    prevTime = curr;
+
+    // turn the `arguments` into a proper Array
+    var args = new Array(arguments.length);
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i];
+    }
+
+    args[0] = exports.coerce(args[0]);
+
+    if ('string' !== typeof args[0]) {
+      // anything else let's inspect with %O
+      args.unshift('%O');
+    }
+
+    // apply any `formatters` transformations
+    var index = 0;
+    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
+      // if we encounter an escaped % then don't increase the array index
+      if (match === '%%') return match;
+      index++;
+      var formatter = exports.formatters[format];
+      if ('function' === typeof formatter) {
+        var val = args[index];
+        match = formatter.call(self, val);
+
+        // now we need to remove `args[index]` since it's inlined in the `format`
+        args.splice(index, 1);
+        index--;
+      }
+      return match;
+    });
+
+    // apply env-specific formatting (colors, etc.)
+    exports.formatArgs.call(self, args);
+
+    var logFn = debug.log || exports.log || console.log.bind(console);
+    logFn.apply(self, args);
+  }
+
+  debug.namespace = namespace;
+  debug.enabled = exports.enabled(namespace);
+  debug.useColors = exports.useColors();
+  debug.color = selectColor(namespace);
+
+  // env-specific initialization logic for debug instances
+  if ('function' === typeof exports.init) {
+    exports.init(debug);
+  }
+
+  return debug;
+}
+
+/**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+
+function enable(namespaces) {
+  exports.save(namespaces);
+
+  exports.names = [];
+  exports.skips = [];
+
+  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+  var len = split.length;
+
+  for (var i = 0; i < len; i++) {
+    if (!split[i]) continue; // ignore empty strings
+    namespaces = split[i].replace(/\*/g, '.*?');
+    if (namespaces[0] === '-') {
+      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+    } else {
+      exports.names.push(new RegExp('^' + namespaces + '$'));
+    }
+  }
+}
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+function disable() {
+  exports.enable('');
+}
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+function enabled(name) {
+  var i, len;
+  for (i = 0, len = exports.skips.length; i < len; i++) {
+    if (exports.skips[i].test(name)) {
+      return false;
+    }
+  }
+  for (i = 0, len = exports.names.length; i < len; i++) {
+    if (exports.names[i].test(name)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+/**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+
+function coerce(val) {
+  if (val instanceof Error) return val.stack || val.message;
+  return val;
+}

+/**
+ * Detect Electron renderer process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process !== 'undefined' && process.type === 'renderer') {
+  module.exports = require('./browser.js');
+} else {
+  module.exports = require('./node.js');
+}

+module.exports = inspectorLog;
+
+// black hole
+const nullStream = new (require('stream').Writable)();
+nullStream._write = () => {};
+
+/**
+ * Outputs a `console.log()` to the Node.js Inspector console *only*.
+ */
+function inspectorLog() {
+  const stdout = console._stdout;
+  console._stdout = nullStream;
+  console.log.apply(console, arguments);
+  console._stdout = stdout;
+}

+/**
+ * Module dependencies.
+ */
+
+var tty = require('tty');
+var util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = require('./debug');
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(function (key) {
+  return /^debug_/i.test(key);
+}).reduce(function (obj, key) {
+  // camel-case
+  var prop = key
+    .substring(6)
+    .toLowerCase()
+    .replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
+
+  // coerce string value into JS value
+  var val = process.env[key];
+  if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
+  else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
+  else if (val === 'null') val = null;
+  else val = Number(val);
+
+  obj[prop] = val;
+  return obj;
+}, {});
+
+/**
+ * The file descriptor to write the `debug()` calls to.
+ * Set the `DEBUG_FD` env variable to override with another value. i.e.:
+ *
+ *   $ DEBUG_FD=3 node script.js 3>debug.log
+ */
+
+var fd = parseInt(process.env.DEBUG_FD, 10) || 2;
+
+if (1 !== fd && 2 !== fd) {
+  util.deprecate(function(){}, 'except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)')()
+}
+
+var stream = 1 === fd ? process.stdout :
+             2 === fd ? process.stderr :
+             createWritableStdioStream(fd);
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+  return 'colors' in exports.inspectOpts
+    ? Boolean(exports.inspectOpts.colors)
+    : tty.isatty(fd);
+}
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+exports.formatters.o = function(v) {
+  this.inspectOpts.colors = this.useColors;
+  return util.inspect(v, this.inspectOpts)
+    .split('\n').map(function(str) {
+      return str.trim()
+    }).join(' ');
+};
+
+/**
+ * Map %o to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+exports.formatters.O = function(v) {
+  this.inspectOpts.colors = this.useColors;
+  return util.inspect(v, this.inspectOpts);
+};
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+  var name = this.namespace;
+  var useColors = this.useColors;
+
+  if (useColors) {
+    var c = this.color;
+    var prefix = '  \u001b[3' + c + ';1m' + name + ' ' + '\u001b[0m';
+
+    args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+    args.push('\u001b[3' + c + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
+  } else {
+    args[0] = new Date().toUTCString()
+      + ' ' + name + ' ' + args[0];
+  }
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to `stream`.
+ */
+
+function log() {
+  return stream.write(util.format.apply(util, arguments) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  if (null == namespaces) {
+    // If you set a process.env field to null or undefined, it gets cast to the
+    // string 'null' or 'undefined'. Just delete instead.
+    delete process.env.DEBUG;
+  } else {
+    process.env.DEBUG = namespaces;
+  }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  return process.env.DEBUG;
+}
+
+/**
+ * Copied from `node/src/node.js`.
+ *
+ * XXX: It's lame that node doesn't expose this API out-of-the-box. It also
+ * relies on the undocumented `tty_wrap.guessHandleType()` which is also lame.
+ */
+
+function createWritableStdioStream (fd) {
+  var stream;
+  var tty_wrap = process.binding('tty_wrap');
+
+  // Note stream._type is used for test-module-load-list.js
+
+  switch (tty_wrap.guessHandleType(fd)) {
+    case 'TTY':
+      stream = new tty.WriteStream(fd);
+      stream._type = 'tty';
+
+      // Hack to have stream not keep the event loop alive.
+      // See https://github.com/joyent/node/issues/1726
+      if (stream._handle && stream._handle.unref) {
+        stream._handle.unref();
+      }
+      break;
+
+    case 'FILE':
+      var fs = require('fs');
+      stream = new fs.SyncWriteStream(fd, { autoClose: false });
+      stream._type = 'fs';
+      break;
+
+    case 'PIPE':
+    case 'TCP':
+      var net = require('net');
+      stream = new net.Socket({
+        fd: fd,
+        readable: false,
+        writable: true
+      });
+
+      // FIXME Should probably have an option in net.Socket to create a
+      // stream from an existing fd which is writable only. But for now
+      // we'll just add this hack and set the `readable` member to false.
+      // Test: ./node test/fixtures/echo.js < /etc/passwd
+      stream.readable = false;
+      stream.read = null;
+      stream._type = 'pipe';
+
+      // FIXME Hack to have stream not keep the event loop alive.
+      // See https://github.com/joyent/node/issues/1726
+      if (stream._handle && stream._handle.unref) {
+        stream._handle.unref();
+      }
+      break;
+
+    default:
+      // Probably an error on in uv_guess_handle()
+      throw new Error('Implement me. Unknown stream file type!');
+  }
+
+  // For supporting legacy API we put the FD here.
+  stream.fd = fd;
+
+  stream._isStdio = true;
+
+  return stream;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init (debug) {
+  debug.inspectOpts = {};
+
+  var keys = Object.keys(exports.inspectOpts);
+  for (var i = 0; i < keys.length; i++) {
+    debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+  }
+}
+
+/**
+ * Enable namespaces listed in `process.env.DEBUG` initially.
+ */
+
+exports.enable(load());