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mime-db

NPM Version NPM Downloads Node.js Version Build Status Coverage Status

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:

Installation

npm install mime-db

Database 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.json

Usage

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:

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:

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.