source: trip-planner-front/node_modules/statuses/index.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1/*!
2 * statuses
3 * Copyright(c) 2014 Jonathan Ong
4 * Copyright(c) 2016 Douglas Christopher Wilson
5 * MIT Licensed
6 */
7
8'use strict'
9
10/**
11 * Module dependencies.
12 * @private
13 */
14
15var codes = require('./codes.json')
16
17/**
18 * Module exports.
19 * @public
20 */
21
22module.exports = status
23
24// status code to message map
25status.STATUS_CODES = codes
26
27// array of status codes
28status.codes = populateStatusesMap(status, codes)
29
30// status codes for redirects
31status.redirect = {
32 300: true,
33 301: true,
34 302: true,
35 303: true,
36 305: true,
37 307: true,
38 308: true
39}
40
41// status codes for empty bodies
42status.empty = {
43 204: true,
44 205: true,
45 304: true
46}
47
48// status codes for when you should retry the request
49status.retry = {
50 502: true,
51 503: true,
52 504: true
53}
54
55/**
56 * Populate the statuses map for given codes.
57 * @private
58 */
59
60function populateStatusesMap (statuses, codes) {
61 var arr = []
62
63 Object.keys(codes).forEach(function forEachCode (code) {
64 var message = codes[code]
65 var status = Number(code)
66
67 // Populate properties
68 statuses[status] = message
69 statuses[message] = status
70 statuses[message.toLowerCase()] = status
71
72 // Add to array
73 arr.push(status)
74 })
75
76 return arr
77}
78
79/**
80 * Get the status code.
81 *
82 * Given a number, this will throw if it is not a known status
83 * code, otherwise the code will be returned. Given a string,
84 * the string will be parsed for a number and return the code
85 * if valid, otherwise will lookup the code assuming this is
86 * the status message.
87 *
88 * @param {string|number} code
89 * @returns {number}
90 * @public
91 */
92
93function status (code) {
94 if (typeof code === 'number') {
95 if (!status[code]) throw new Error('invalid status code: ' + code)
96 return code
97 }
98
99 if (typeof code !== 'string') {
100 throw new TypeError('code must be a number or string')
101 }
102
103 // '403'
104 var n = parseInt(code, 10)
105 if (!isNaN(n)) {
106 if (!status[n]) throw new Error('invalid status code: ' + n)
107 return n
108 }
109
110 n = status[code.toLowerCase()]
111 if (!n) throw new Error('invalid status message: "' + code + '"')
112 return n
113}
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