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128 lines
3.4 KiB
Markdown
128 lines
3.4 KiB
Markdown
6 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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This module provides a list of status codes and messages sourced from
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a few different projects:
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* The [IANA Status Code Registry](https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml)
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* The [Node.js project](https://nodejs.org/)
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* The [NGINX project](https://www.nginx.com/)
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* The [Apache HTTP Server project](https://httpd.apache.org/)
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## Installation
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This is a [Node.js](https://nodejs.org/en/) module available through the
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[npm registry](https://www.npmjs.com/). Installation is done using the
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[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
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```sh
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$ npm install statuses
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```
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## API
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<!-- eslint-disable no-unused-vars -->
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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
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appropriate `code` will be returned. Otherwise, an error will be thrown.
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<!-- eslint-disable no-undef -->
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```js
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status(403) // => 403
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status('403') // => 403
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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.STATUS_CODES
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Returns an object which maps status codes to status messages, in
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the same format as the
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[Node.js http module](https://nodejs.org/dist/latest/docs/api/http.html#http_http_status_codes).
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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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<!-- eslint-disable no-undef, no-unused-expressions -->
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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
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lower-cased. `undefined` for invalid `status message`s.
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<!-- eslint-disable no-undef, no-unused-expressions -->
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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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<!-- eslint-disable no-undef, no-unused-expressions -->
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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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<!-- eslint-disable no-undef, no-unused-expressions -->
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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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<!-- eslint-disable no-undef, no-unused-expressions -->
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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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[npm-image]: https://img.shields.io/npm/v/statuses.svg
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[npm-url]: https://npmjs.org/package/statuses
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[node-version-image]: https://img.shields.io/node/v/statuses.svg
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[node-version-url]: https://nodejs.org/en/download
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[travis-image]: https://img.shields.io/travis/jshttp/statuses.svg
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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
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[coveralls-url]: https://coveralls.io/r/jshttp/statuses?branch=master
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[downloads-image]: https://img.shields.io/npm/dm/statuses.svg
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[downloads-url]: https://npmjs.org/package/statuses
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