Data.Aeson.Generic

Deprecated: This module will be REMOVED in version 0.7.0.0. Please switch to GHC generics or Data.Aeson.TH instead. These alternatives are less buggy, faster, and more configurable.

JSON handling using Generics.

This is based on the Generic package originally written by Lennart Augustsson.

Decoding and encoding

decode :: Data a => ByteString -> Maybe a

Efficiently deserialize a JSON value from a lazy ByteString. If this fails due to incomplete or invalid input, Nothing is returned.

This function parses immediately, but defers conversion. See json for details.

decode' :: Data a => ByteString -> Maybe a

Efficiently deserialize a JSON value from a lazy ByteString. If this fails due to incomplete or invalid input, Nothing is returned.

This function parses and performs conversion immediately. See json' for details.

encode :: Data a => a -> ByteString

Efficiently serialize a JSON value as a lazy ByteString.

Lower-level conversion functions

fromJSON :: Data a => Value -> Result a

toJSON :: Data a => a -> Value