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mime-db

This is a database of all mime types. It consistents of a single, public JSON file and does not include any logic, allowing it to remain as unopinionated as possible with an API. It aggregates data from the following sources:

Usage

npm i mime-db

var db = require('mime-db');

// grab data on .js files
var data = db['application/javascript'];

If you're crazy enough to use this in the browser, you can just grab the JSON file:

https://cdn.rawgit.com/jshttp/mime-db/master/db.json

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 types
- iana - IANA-defined media types
.extensions[] - known extensions associated with this mime type.
.compressible - whether a file of this type is can be gzipped.
.charset - the default charset associated with this type, if any.

If unknown, every property could be undefined.

Repository Structure

scripts - these are scripts to run to build the database
src/ - this is a folder of files created from remote sources like Apache and IANA
lib/ - this is a folder of our own custom sources and db, which will be merged into db.json
db.json - the final built JSON file for end-user usage

Contributing

To edit the database, only make PRs against files in the lib/ folder. To update the build, run npm run update.

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