ThilinaSampathmime-db
This is a database of all mime types. It consists of a single, public JSON file and does not include any logic, allowing it to remain as un-opinionated as possible with an API. It aggregates data from the following sources:
- http://www.iana.org/assignments/media-types/media-types.xhtml
- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types
Installation
npm install mime-dbDatabase Download
If you're crazy enough to use this in the browser, you can just grab the
JSON file using RawGit. It is recommended to replace
master with a release tag as the
JSON format may change in the future.
https://cdn.rawgit.com/jshttp/mime-db/master/db.jsonUsage
var db = require('mime-db');
// grab data on .js files
var data = db['application/javascript'];Data Structure
The JSON file is a map lookup for lowercased mime types. Each mime type has the following properties:
.source- where the mime type is defined. If not set, it's probably a custom media type.apache- Apache common media typesiana- IANA-defined media typesnginx- nginx media types
.extensions[]- known extensions associated with this mime type..compressible- whether a file of this type can be gzipped..charset- the default charset associated with this type, if any.
If unknown, every property could be undefined.
Contributing
To edit the database, only make PRs against src/custom.json or
src/custom-suffix.json.
The src/custom.json file is a JSON object with the MIME type as the keys
and the values being an object with the following keys:
compressible- leave out if you don't know, otherwisetrue/falseto indicate whether the data represented by the type is typically compressible.extensions- include an array of file extensions that are associated with the type.notes- human-readable notes about the type, typically what the type is.sources- include an array of URLs of where the MIME type and the associated extensions are sourced from. This needs to be a primary source; links to type aggregating sites and Wikipedia are not acceptable.
To update the build, run npm run build.
Adding Custom Media Types
The best way to get new media types included in this library is to register them with the IANA. The community registration procedure is outlined in RFC 6838 section 5. Types registered with the IANA are automatically pulled into this library.