The aeson-utils package

[Tags:bsd3, library]

Utilities for working with Aeson.

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Versions 0.2.1,,,, 0.3,,
Change log
Dependencies aeson (>=0.6 && <1.2), attoparsec (>=0.10 && <0.14), base (==4.*), bytestring (>=0.9 && <0.11), scientific (>=0.3.2 && <0.4), text (>=0.11 && <1.3) [details]
License BSD3
Copyright 2014, Silk B.V
Author Silk. B.V.
Stability Unknown
Category Data
Source repository head: git clone
Uploaded Mon May 25 21:23:54 UTC 2015 by AdamBergmark
Updated Sun Jan 8 14:46:07 UTC 2017 by AdamBergmark to revision 4
Distributions LTSHaskell:, NixOS:, Stackage:, Tumbleweed:
Downloads 3293 total (12 in the last 30 days)
0 []
Status Docs available [build log]
Last success reported on 2015-05-26 [all 1 reports]




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Readme for aeson-utils

Readme for aeson-utils-


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A small package containing helpful addititions to aeson.

It provides eitherDecodeV and decodeV functions (analogous to eitherDecode and decode in aeson) that can be used to parse atomic JSON values at the top level. This is not strictly valid JSON, only objects and arrays are allowed at the top level in the specification, but aeson's encode allows this already. This gives us the nice property decodeV . encode = Just.

The package also contains the .=? operator that you can use to optionally construct object pairs:

object (
  [ "a" .= foo
  , "b" .= bar
  ] ++ catMaybes
  [ "c" .=? mBaz
  , "d" .=? mQux

Finally it has a parseNumber function that converts a scientific into Either Integer Double in case you want to distinguish between integrals and fractionals.

Installation instructions

aeson-utils is available on hackage

cabal install aeson-utils