detect-content-type

Javascript module to determine the Content-Type of the given data, using the algorithm specified in the MIME Sniffing Standard.

This module is useful in cases where it is not possible to determine the Content-Type of the data using filename extension, either because file does not have an extension or the filename is not available.

Installation

``
npm install detect-content-type
`

or

`
yarn add detect-content-type
`




Import


ES6 and above:
`javascript
import detectContentType from 'detect-content-type'
`

Using CommonJS:
`javascript
var detectContentType = require('detect-content-type')
`

Usage


detectContentType takes a Buffer, and determines its Content-Type. It considers at most
512 bytes of data. detectContentType always returns a valid MIME type. If it cannot determine a
more specific one, it returns application/octet-stream.

`javascript
let ct = detectContentType(Buffer.from("")) // returns 'text/html; charset=utf-8'
``

Credits

The code in this module is ported nearly line-by-line from the [http.DetectContentType][DetectContentType] method in the Go standard library.

[DetectContentType]: https://golang.org/pkg/net/http/#DetectContentType