compressible

Compressible `Content-Type` / `mime` checking.

# Installation

$ npm install compressible

# API

var compressible = require('compressible')

## compressible(type)

Checks if the given `Content-Type` is compressible. The `type` argument is expected to be a value MIME type or `Content-Type` string, though no validation is performed.

The MIME is looked up in the `mime-db` and if there is compressible information in the database entry, that is returned. Otherwise, this module will fallback to `true` for the following types:

- `text/*`
- `*/*+json`
- `*/*+text`
- `*/*+xml`

If this module is not sure if a type is specifically compressible or specifically uncompressible, `undefined` is returned.

compressible('text/html') // => true
compressible('image/png') // => false

# License

[MIT](LICENSE)