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115 lines
3.0 KiB
Markdown
115 lines
3.0 KiB
Markdown
8 years ago
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# Statuses
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[![NPM Version][npm-image]][npm-url]
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[![NPM Downloads][downloads-image]][downloads-url]
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[![Node.js Version][node-version-image]][node-version-url]
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[![Build Status][travis-image]][travis-url]
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[![Test Coverage][coveralls-image]][coveralls-url]
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HTTP status utility for node.
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## API
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```js
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var status = require('statuses');
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```
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### var code = status(Integer || String)
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If `Integer` or `String` is a valid HTTP code or status message, then the appropriate `code` will be returned. Otherwise, an error will be thrown.
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```js
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status(403) // => 'Forbidden'
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status('403') // => 'Forbidden'
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status('forbidden') // => 403
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status('Forbidden') // => 403
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status(306) // throws, as it's not supported by node.js
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```
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### status.codes
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Returns an array of all the status codes as `Integer`s.
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### var msg = status[code]
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Map of `code` to `status message`. `undefined` for invalid `code`s.
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```js
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status[404] // => 'Not Found'
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```
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### var code = status[msg]
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Map of `status message` to `code`. `msg` can either be title-cased or lower-cased. `undefined` for invalid `status message`s.
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```js
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status['not found'] // => 404
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status['Not Found'] // => 404
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```
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### status.redirect[code]
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Returns `true` if a status code is a valid redirect status.
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```js
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status.redirect[200] // => undefined
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status.redirect[301] // => true
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```
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### status.empty[code]
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Returns `true` if a status code expects an empty body.
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```js
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status.empty[200] // => undefined
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status.empty[204] // => true
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status.empty[304] // => true
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```
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### status.retry[code]
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Returns `true` if you should retry the rest.
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```js
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status.retry[501] // => undefined
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status.retry[503] // => true
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```
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### statuses/codes.json
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```js
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var codes = require('statuses/codes.json');
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```
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This is a JSON file of the status codes
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taken from `require('http').STATUS_CODES`.
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This is saved so that codes are consistent even in older node.js versions.
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For example, `308` will be added in v0.12.
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## Adding Status Codes
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The status codes are primarily sourced from http://www.iana.org/assignments/http-status-codes/http-status-codes-1.csv.
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Additionally, custom codes are added from http://en.wikipedia.org/wiki/List_of_HTTP_status_codes.
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These are added manually in the `lib/*.json` files.
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If you would like to add a status code, add it to the appropriate JSON file.
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To rebuild `codes.json`, run the following:
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```bash
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# update src/iana.json
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npm run update
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# build codes.json
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npm run build
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```
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[npm-image]: https://img.shields.io/npm/v/statuses.svg?style=flat
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[npm-url]: https://npmjs.org/package/statuses
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[node-version-image]: http://img.shields.io/badge/node.js-%3E%3D_0.6-brightgreen.svg?style=flat
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[node-version-url]: http://nodejs.org/download/
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[travis-image]: https://img.shields.io/travis/jshttp/statuses.svg?style=flat
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[travis-url]: https://travis-ci.org/jshttp/statuses
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[coveralls-image]: https://img.shields.io/coveralls/jshttp/statuses.svg?style=flat
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[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master
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[downloads-image]: http://img.shields.io/npm/dm/statuses.svg?style=flat
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[downloads-url]: https://npmjs.org/package/statuses
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