83 lines
2.9 KiB
Markdown
83 lines
2.9 KiB
Markdown
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# mime-db
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[![NPM Version][npm-version-image]][npm-url]
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[![NPM Downloads][npm-downloads-image]][npm-url]
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[![Node.js Version][node-image]][node-url]
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[![Build Status][travis-image]][travis-url]
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[![Coverage Status][coveralls-image]][coveralls-url]
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This is a database of all mime types.
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It consists of a single, public JSON file and does not include any logic,
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allowing it to remain as un-opinionated as possible with an API.
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It aggregates data from the following sources:
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- http://www.iana.org/assignments/media-types/media-types.xhtml
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- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
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- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types
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## Installation
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```bash
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npm install mime-db
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```
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### Database Download
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If you're crazy enough to use this in the browser, you can just grab the
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JSON file using [RawGit](https://rawgit.com/). It is recommended to replace
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`master` with [a release tag](https://github.com/jshttp/mime-db/tags) as the
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JSON format may change in the future.
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```
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https://cdn.rawgit.com/jshttp/mime-db/master/db.json
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```
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## Usage
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```js
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var db = require('mime-db');
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// grab data on .js files
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var data = db['application/javascript'];
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```
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## Data Structure
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The JSON file is a map lookup for lowercased mime types.
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Each mime type has the following properties:
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- `.source` - where the mime type is defined.
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If not set, it's probably a custom media type.
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- `apache` - [Apache common media types](http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types)
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- `iana` - [IANA-defined media types](http://www.iana.org/assignments/media-types/media-types.xhtml)
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- `nginx` - [nginx media types](http://hg.nginx.org/nginx/raw-file/default/conf/mime.types)
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- `.extensions[]` - known extensions associated with this mime type.
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- `.compressible` - whether a file of this type can be gzipped.
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- `.charset` - the default charset associated with this type, if any.
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If unknown, every property could be `undefined`.
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## Contributing
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To edit the database, only make PRs against `src/custom.json` or
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`src/custom-suffix.json`.
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To update the build, run `npm run build`.
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## Adding Custom Media Types
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The best way to get new media types included in this library is to register
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them with the IANA. The community registration procedure is outlined in
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[RFC 6838 section 5](http://tools.ietf.org/html/rfc6838#section-5). Types
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registered with the IANA are automatically pulled into this library.
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[npm-version-image]: https://img.shields.io/npm/v/mime-db.svg
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[npm-downloads-image]: https://img.shields.io/npm/dm/mime-db.svg
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[npm-url]: https://npmjs.org/package/mime-db
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[travis-image]: https://img.shields.io/travis/jshttp/mime-db/master.svg
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[travis-url]: https://travis-ci.org/jshttp/mime-db
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[coveralls-image]: https://img.shields.io/coveralls/jshttp/mime-db/master.svg
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[coveralls-url]: https://coveralls.io/r/jshttp/mime-db?branch=master
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[node-image]: https://img.shields.io/node/v/mime-db.svg
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[node-url]: http://nodejs.org/download/
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