The aeson package

[Tags:bsd3, library]

A JSON parsing and encoding library optimized for ease of use and high performance.

To get started, see the documentation for the Data.Aeson module below.

Parsing performance on an early 2011 MacBook Pro (2.2GHz Core i7), running 64-bit GHC 7.6.3, for mostly-English tweets from Twitter's JSON search API:

Handling heavily-escaped text is a little more work. Here is parsing performance with Japanese tweets, where much of the text is entirely Unicode-escaped.

Encoding performance on the same machine and data:

(A note on naming: in Greek mythology, Aeson was the father of Jason.)


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Properties

Versions 0.1.0.0, 0.2.0.0, 0.3.0.0, 0.3.1.0, 0.3.1.1, 0.3.2.0, 0.3.2.1, 0.3.2.2, 0.3.2.3, 0.3.2.4, 0.3.2.5, 0.3.2.6, 0.3.2.7, 0.3.2.8, 0.3.2.9, 0.3.2.10, 0.3.2.11, 0.3.2.12, 0.3.2.13, 0.3.2.14, 0.4.0.0, 0.4.0.1, 0.5.0.0, 0.6.0.0, 0.6.0.1, 0.6.0.2, 0.6.1.0, 0.6.2.0, 0.6.2.1, 0.7.0.0, 0.7.0.1, 0.7.0.2, 0.7.0.3, 0.7.0.4, 0.7.0.5, 0.7.0.6, 0.8.0.0, 0.8.0.1, 0.8.0.2, 0.8.1.0, 0.8.1.1, 0.9.0.0, 0.9.0.1, 0.10.0.0, 0.11.0.0, 0.11.1.0, 0.11.1.1, 0.11.1.2, 0.11.1.3, 0.11.1.4, 0.11.2.0 (info)
Change log changelog
Dependencies attoparsec (>=0.11.3.4), base (==4.*), blaze-builder (>=0.2.1.4), bytestring, containers, deepseq, dlist (>=0.2), ghc-prim (>=0.2), hashable (>=1.1.2.0), mtl, old-locale, scientific (>=0.3.1 && <0.4), syb, template-haskell (>=2.4), text (>=0.11.1.0), time (<1.5), unordered-containers (>=0.2.3.0), vector (>=0.7.1) [details]
License BSD3
Copyright (c) 2011-2014 Bryan O'Sullivan (c) 2011 MailRank, Inc.
Author Bryan O'Sullivan <bos@serpentine.com>
Maintainer Bryan O'Sullivan <bos@serpentine.com>
Stability experimental
Category Text, Web, JSON
Home page https://github.com/bos/aeson
Bug tracker https://github.com/bos/aeson/issues
Source repository head: git clone git://github.com/bos/aeson.git
head: hg clone https://bitbucket.org/bos/aeson
Uploaded Thu May 15 20:53:27 UTC 2014 by BryanOSullivan
Updated Fri Jan 9 22:26:24 UTC 2015 by HerbertValerioRiedel to revision 1
Distributions Arch:0.11.2.0, Debian:0.10.0.0, Fedora:0.8.0.2, FreeBSD:0.8.0.2, LTSHaskell:0.11.2.0, NixOS:0.11.2.0, Stackage:0.11.2.0, Tumbleweed:0.11.2.0
Downloads 230231 total (161 in the last 30 days)
Votes
9 []
Status Docs available [build log]
Successful builds reported [all 1 reports]

Modules

[Index]

Flags

NameDescriptionDefaultType
developeroperate in developer modeDisabledAutomatic
blaze-builderUse blaze-builder instead of bytestring >= 0.10DisabledAutomatic
new-bytestring-builderUse the new bytestring builder available in bytestring >= 0.10.4.0DisabledAutomatic

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

Maintainer's Corner

For package maintainers and hackage trustees

Readme for aeson

Readme for aeson-0.7.0.5

Welcome to aeson

aeson is a fast Haskell library for working with JSON data.

Join in!

We are happy to receive bug reports, fixes, documentation enhancements, and other improvements.

Please report bugs via the github issue tracker.

Master git repository:

  • git clone git://github.com/bos/aeson.git

There's also a Mercurial mirror:

  • hg clone http://bitbucket.org/bos/aeson

(You can create and contribute changes using either git or Mercurial.)

Authors

This library is written and maintained by Bryan O'Sullivan, bos@serpentine.com.