Safe Haskell	Safe-Inferred
Language	Haskell2010

Data.Aeson.Extra

Synopsis

buildObject :: (Object -> Object) -> Value
optionalField :: ToJSON a => Key -> Maybe a -> Object -> Object
requiredField :: ToJSON a => Key -> a -> Object -> Object
stripPrefix :: String -> String -> String

Documentation

buildObject :: (Object -> Object) -> Value Source #

Build a JSON object omitting optional keys if a corresponding value is Nothing.

Example: buildObject $ requiredField "field1" a . requiredField "field2" c . optionalField "field3" (Just "hello") . optionalField "field4" Nothing builds this JSON object: { "field1": a, "field2": c, "field3": "hello" } omitting optional field4.

optionalField :: ToJSON a => Key -> Maybe a -> Object -> Object Source #

requiredField :: ToJSON a => Key -> a -> Object -> Object Source #

stripPrefix Source #

Arguments

:: String	Field prefix to strip
-> String	Field name
-> String

A field label modifier that strips a prefix from the camelCased field name; >>> stripPrefix "preamble" "preambleTitle" "title"