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A fast Haskell JSON library
Haskell Other
Latest commit 4667ef1 @basvandijk basvandijk Completely remove the MINIMAL prama because it's unnecessary
From the GHC user guide:

  If no MINIMAL pragma is given in the class declaration, it is just as
  if a pragma {-# MINIMAL op1, op2, ..., opn #-} was given, where the
  opi are the methods that lack a default method in the class


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://

There's also a Mercurial mirror:

  • hg clone

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


This library is written and maintained by Bryan O'Sullivan,

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