fast-content-type-parse

Parse HTTP Content-Type header according to RFC 7231

Installation

1$ npm install fast-content-type-parse

Usage

1const fastContentTypeParse = require('fast-content-type-parse')

fastContentTypeParse.parse(string)

1const contentType = fastContentTypeParse.parse('application/json; charset=utf-8')

Parse a Content-Type header. Throws a TypeError if the string is invalid.

It will return an object with the following properties (examples are shown for the string 'application/json; charset=utf-8'):

• type: The media type (the type and subtype, always lower case). Example: 'application/json'

• parameters: An object of the parameters in the media type (name of parameter always lower case). Example: {charset: 'utf-8'}

fastContentTypeParse.safeParse(string)

1const contentType = fastContentTypeParse.safeParse('application/json; charset=utf-8')

Parse a Content-Type header. It will not throw an Error if the header is invalid.

This will return an object with the following properties (examples are shown for the string 'application/json; charset=utf-8'):

• type: The media type (the type and subtype, always lower case). Example: 'application/json'

• parameters: An object of the parameters in the media type (name of parameter always lower case). Example: {charset: 'utf-8'}

In case the header is invalid, it will return an object with an empty string '' as type and an empty Object for parameters.

Benchmarks

1node benchmarks/index.js
2util#MIMEType x 1,206,781 ops/sec ±0.22% (96 runs sampled)
3fast-content-type-parse#parse x 3,752,236 ops/sec ±0.42% (96 runs sampled)
4fast-content-type-parse#safeParse x 3,675,645 ops/sec ±1.09% (94 runs sampled)
5content-type#parse x 1,452,582 ops/sec ±0.37% (95 runs sampled)
6busboy#parseContentType x 924,306 ops/sec ±0.43% (94 runs sampled)
7Fastest is fast-content-type-parse#parse

Credits

Based on the npm package content-type