The http-media package

[Tags:library, mit, test]

This library is intended to be a comprehensive solution to parsing and selecting quality-indexed values in HTTP headers. It is capable of parsing both media types and language parameters from the Accept and Content header families, and can be extended to match against other accept headers as well. Selecting the appropriate header value is achieved by comparing a list of server options against the quality-indexed values supplied by the client.

In the following example, the Accept header is parsed and then matched against a list of server options to serve the appropriate media using mapAcceptMedia:

 getHeader >>= maybe send406Error sendResourceWith . mapAcceptMedia
     [ ("text/html",        asHtml)
     , ("application/json", asJson)

Similarly, the Content-Type header can be used to produce a parser for request bodies based on the given content type with mapContentMedia:

 getContentType >>= maybe send415Error readRequestBodyWith . mapContentMedia
     [ ("application/json", parseJson)
     , ("text/plain",       parseText)

The API is agnostic to your choice of server.


Versions 0.1.0, 0.1.1, 0.2.0, 0.3.0, 0.4.0, 0.5.0, 0.5.1, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.6.4
Dependencies base (>=4.6 && <5.0), bytestring (==0.10.*), case-insensitive (>=1.0 && <1.3), containers (==0.5.*) [details]
License MIT
Copyright (c) 2012-2016 Timothy Jones
Author Timothy Jones
Maintainer Timothy Jones <>
Stability Unknown
Category Web
Home page
Bug tracker
Source repository head: git clone git://
Uploaded Wed Jul 13 05:07:19 UTC 2016 by TimothyJones
Distributions LTSHaskell:0.6.4, NixOS:0.6.4, Stackage:0.6.4, Tumbleweed:0.6.4
Downloads 4070 total (30 in the last 30 days)
0 []
Status Docs available [build log]
Last success reported on 2016-07-13 [all 1 reports]




Maintainer's Corner

For package maintainers and hackage trustees