Media Types knows how to parse, and generate media type strings that you might use in HTTP content negotiation.
Other solutions exist but are either a bit too featureful. This library aims to be small, lightweight, easy to use, and fast.
For a more complete solution that includes detection of file types, can suggest extensions etc. you might want to check out Apache Tika.
You can parse a string media type into a map of :toptype, :subtype, and
:params, where the media type string is of the form:
<toptype>/<subtype>[; params]+
Given a media type of “application/json; charset=utf-8”, we can parse this into a map like so:
(require '[invetica.media-types :as media])
(media/parse "application/json; charset=utf-8")
;; => {:params {"charset" "utf-8"}
;; :subtype "javascript"
;; :toptype "application"}The test suite makes sure we can parse every registered media type, which requires a bit of XML pulled from IANA. This data is vendored into the repository to save IANA’s bandwidth, and to ensure we don’t need the internet to run our tests.
You can pull the latest list of registered media types using curl like so:
mkdir -p dev-resources/invetica
curl -o dev-resources/invetica/media-types.xml \
https://www.iana.org/assignments/media-types/media-types.xml- https://tools.ietf.org/html/rfc2046
- https://www.iana.org/assignments/media-types/media-types.xhtml
- https://en.wikipedia.org/wiki/Media_type
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Copyright © 2017 Invetica Ltd
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