aeson: Fast JSON parsing and encoding

[ bsd3, json, library, text, web ] [ Propose Tags ]

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 a late 2013 MacBook Pro (2.6GHz Core i7), running 64-bit GHC 7.10.1, for mostly-English tweets from Twitter's JSON search API:

6.4 KB payloads, English: 7570 msg/sec (47.6 MB/sec)
14.6 KB payloads, Japanese: 3261 msg/sec (46.6 MB/sec)

Encoding performance on the same machine and data:

6.4 KB payloads, English: 22738 msg/sec (142.9 MB/sec)
14.6 KB payloads, Japanese: 15911 msg/sec (227.4 MB/sec)

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

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Versions [RSS] [faq]	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, 0.11.2.1, 0.11.3.0, 1.0.0.0, 1.0.1.0, 1.0.2.0, 1.0.2.1, 1.1.0.0, 1.1.1.0, 1.1.2.0, 1.2.0.0, 1.2.1.0, 1.2.2.0, 1.2.3.0, 1.2.4.0, 1.3.0.0, 1.3.1.0, 1.3.1.1, 1.4.0.0, 1.4.1.0, 1.4.2.0, 1.4.3.0, 1.4.4.0, 1.4.5.0, 1.4.6.0, 1.4.7.0, 1.4.7.1, 1.5.0.0, 1.5.1.0, 1.5.2.0, 1.5.3.0, 1.5.4.0, 1.5.4.1, 1.5.5.0, 1.5.5.1, 1.5.6.0, 2.0.0.0, 2.0.1.0, 2.0.2.0, 2.0.3.0 (info)
Change log	changelog.md
Dependencies	attoparsec (>=0.13.0.1 && <0.14), base (>=4.5 && <4.13), bytestring (>=0.10.4.0 && <0.11), containers (<0.7), deepseq (>=1.1.0.0 && <1.5), dlist (>=0.2 && <0.9), fail (==4.9.*), ghc-prim (>=0.2), hashable (>=1.1.2.0 && <1.4), mtl (<2.3), nats (>=1 && <1.2), old-locale, scientific (>=0.3.1 && <0.4), semigroups (>=0.16.1 && <0.19), syb (<0.8), tagged (>=0.8.3 && <0.9), template-haskell (>=2.7 && <2.15), text (>=1.1.1.0 && <1.3), time (>=1.1.4 && <1.10), transformers (<0.6), unordered-containers (>=0.2.5.0 && <0.3), vector (>=0.8 && <0.13) [details]
License	BSD-3-Clause
Copyright	(c) 2011-2016 Bryan O'Sullivan (c) 2011 MailRank, Inc.
Author	Bryan O'Sullivan <bos@serpentine.com>
Maintainer	Bryan O'Sullivan <bos@serpentine.com>
Revised	Revision 2 made by phadej at 2021-10-19T16:08:38Z
Category	Text, Web, JSON
Home page	https://github.com/bos/aeson
Bug tracker	https://github.com/bos/aeson/issues
Source repo	head: git clone git://github.com/bos/aeson.git head: hg clone https://bitbucket.org/bos/aeson
Uploaded	by AdamBergmark at 2017-01-24T17:18:26Z
Distributions	Arch:1.5.6.0, Debian:1.3.1.1, Fedora:1.5.6.0, FreeBSD:0.8.0.2, LTSHaskell:1.5.6.0, NixOS:1.5.6.0, Stackage:1.5.6.0, openSUSE:1.5.4.0
Downloads	551279 total (3045 in the last 30 days)
Rating	2.75 (votes: 37) [estimated by Bayesian average]
Your Rating	λ λ λ
Status	Docs available [build log] Last success reported on 2017-01-24 [all 1 reports]

Modules

[Index]

Data
- Data.Aeson

Manual Flags

Name	Description	Default
developer	operate in developer mode	Disabled

Automatic Flags

Name	Description	Default
old-locale	If false then depend on time >= 1.5 && < 1.10. If true then depend on time < 1.5 together with old-locale.	Disabled

Name

Description

Default

old-locale

If false then depend on time >= 1.5 && < 1.10.

If true then depend on time < 1.5 together with old-locale.

Disabled

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

Downloads

aeson-0.11.3.0.tar.gz [browse] (Cabal source package)
Package description (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.