aeson-tiled-0.0.2.3: Aeson instances for the Tiled map editor.
Safe HaskellSafe-Inferred
LanguageHaskell2010

Codec.Tiled.Aeson

Synopsis

Documentation

class FromJSON a where #

A type that can be converted from JSON, with the possibility of failure.

In many cases, you can get the compiler to generate parsing code for you (see below). To begin, let's cover writing an instance by hand.

There are various reasons a conversion could fail. For example, an Object could be missing a required key, an Array could be of the wrong size, or a value could be of an incompatible type.

The basic ways to signal a failed conversion are as follows:

  • fail yields a custom error message: it is the recommended way of reporting a failure;
  • empty (or mzero) is uninformative: use it when the error is meant to be caught by some (<|>);
  • typeMismatch can be used to report a failure when the encountered value is not of the expected JSON type; unexpected is an appropriate alternative when more than one type may be expected, or to keep the expected type implicit.

prependFailure (or modifyFailure) add more information to a parser's error messages.

An example type and instance using typeMismatch and prependFailure:

-- Allow ourselves to write Text literals.
{-# LANGUAGE OverloadedStrings #-}

data Coord = Coord { x :: Double, y :: Double }

instance FromJSON Coord where
    parseJSON (Object v) = Coord
        <$> v .: "x"
        <*> v .: "y"

    -- We do not expect a non-Object value here.
    -- We could use empty to fail, but typeMismatch
    -- gives a much more informative error message.
    parseJSON invalid    =
        prependFailure "parsing Coord failed, "
            (typeMismatch "Object" invalid)

For this common case of only being concerned with a single type of JSON value, the functions withObject, withScientific, etc. are provided. Their use is to be preferred when possible, since they are more terse. Using withObject, we can rewrite the above instance (assuming the same language extension and data type) as:

instance FromJSON Coord where
    parseJSON = withObject "Coord" $ \v -> Coord
        <$> v .: "x"
        <*> v .: "y"

Instead of manually writing your FromJSON instance, there are two options to do it automatically:

  • Data.Aeson.TH provides Template Haskell functions which will derive an instance at compile time. The generated instance is optimized for your type so it will probably be more efficient than the following option.
  • The compiler can provide a default generic implementation for parseJSON.

To use the second, simply add a deriving Generic clause to your datatype and declare a FromJSON instance for your datatype without giving a definition for parseJSON.

For example, the previous example can be simplified to just:

{-# LANGUAGE DeriveGeneric #-}

import GHC.Generics

data Coord = Coord { x :: Double, y :: Double } deriving Generic

instance FromJSON Coord

or using the DerivingVia extension

deriving via Generically Coord instance FromJSON Coord

The default implementation will be equivalent to parseJSON = genericParseJSON defaultOptions; if you need different options, you can customize the generic decoding by defining:

customOptions = defaultOptions
                { fieldLabelModifier = map toUpper
                }

instance FromJSON Coord where
    parseJSON = genericParseJSON customOptions

Minimal complete definition

Nothing

Methods

parseJSON :: Value -> Parser a #

parseJSONList :: Value -> Parser [a] #

omittedField :: Maybe a #

Default value for optional fields. Used by (.:?=) operator, and Generics and TH deriving with allowOmittedFields = True (default).

Since: aeson-2.2.0.0

Instances

Instances details
FromJSON Key 
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Defined in Data.Aeson.Types.FromJSON

FromJSON DotNetTime 
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Defined in Data.Aeson.Types.FromJSON

FromJSON Value 
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Defined in Data.Aeson.Types.FromJSON

FromJSON Layer Source # 
Instance details

Defined in Codec.Tiled.Layer

FromJSON Chunk Source # 
Instance details

Defined in Codec.Tiled.Layer.Chunk

FromJSON LayerData Source # 
Instance details

Defined in Codec.Tiled.Layer.Data

FromJSON Map Source # 
Instance details

Defined in Codec.Tiled.Map

FromJSON Object Source # 
Instance details

Defined in Codec.Tiled.Object

FromJSON Point Source # 
Instance details

Defined in Codec.Tiled.Object.Point

FromJSON Template Source # 
Instance details

Defined in Codec.Tiled.Object.Template

FromJSON Text Source # 
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Defined in Codec.Tiled.Object.Text

FromJSON Property Source # 
Instance details

Defined in Codec.Tiled.Property

FromJSON Tileset Source # 
Instance details

Defined in Codec.Tiled.Tileset

FromJSON Frame Source # 
Instance details

Defined in Codec.Tiled.Tileset.Frame

FromJSON Grid Source # 
Instance details

Defined in Codec.Tiled.Tileset.Grid

FromJSON TilesetRef Source # 
Instance details

Defined in Codec.Tiled.Tileset.Ref

FromJSON Terrain Source # 
Instance details

Defined in Codec.Tiled.Tileset.Terrain

FromJSON Tile Source # 
Instance details

Defined in Codec.Tiled.Tileset.Tile

FromJSON TileOffset Source # 
Instance details

Defined in Codec.Tiled.Tileset.TileOffset

FromJSON Transformations Source # 
Instance details

Defined in Codec.Tiled.Tileset.Transformations

FromJSON WangColor Source # 
Instance details

Defined in Codec.Tiled.Tileset.WangColor

FromJSON WangSet Source # 
Instance details

Defined in Codec.Tiled.Tileset.WangSet

FromJSON WangTile Source # 
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Defined in Codec.Tiled.Tileset.WangTile

FromJSON World Source # 
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Defined in Codec.Tiled.World

FromJSON Map Source # 
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Defined in Codec.Tiled.World.Map

FromJSON Pattern Source # 
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Defined in Codec.Tiled.World.Pattern

FromJSON GID Source # 
Instance details

Defined in Data.Tiled.GID

FromJSON Version 
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Defined in Data.Aeson.Types.FromJSON

FromJSON Void 
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FromJSON CTime 
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FromJSON Int16 
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FromJSON Int32 
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FromJSON Int64 
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FromJSON Int8 
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FromJSON Word16 
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FromJSON Word32 
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FromJSON Word64 
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FromJSON Word8 
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FromJSON IntSet 
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FromJSON Ordering 
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FromJSON URI

Since: aeson-2.2.0.0

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FromJSON Scientific 
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FromJSON Text 
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FromJSON Text 
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Defined in Data.Aeson.Types.FromJSON

FromJSON ShortText

Since: aeson-2.0.2.0

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FromJSON CalendarDiffDays 
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FromJSON Day 
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FromJSON Month 
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FromJSON Quarter 
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FromJSON QuarterOfYear 
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FromJSON DayOfWeek 
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FromJSON DiffTime

This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype Scientific and provide your own instance using withScientific if you want to allow larger inputs.

Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSON NominalDiffTime

This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype Scientific and provide your own instance using withScientific if you want to allow larger inputs.

Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSON SystemTime 
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Defined in Data.Aeson.Types.FromJSON

FromJSON UTCTime 
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Defined in Data.Aeson.Types.FromJSON

FromJSON CalendarDiffTime 
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Defined in Data.Aeson.Types.FromJSON

FromJSON LocalTime 
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Defined in Data.Aeson.Types.FromJSON

FromJSON TimeOfDay 
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Defined in Data.Aeson.Types.FromJSON

FromJSON ZonedTime

Supported string formats:

YYYY-MM-DD HH:MMZ YYYY-MM-DD HH:MM:SSZ YYYY-MM-DD HH:MM:SS.SSSZ

The first space may instead be a T, and the second space is optional. The Z represents UTC. The Z may be replaced with a time zone offset of the form +0000 or -08:00, where the first two digits are hours, the : is optional and the second two digits (also optional) are minutes.

Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSON UUID 
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Defined in Data.Aeson.Types.FromJSON

FromJSON Integer

This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype Scientific and provide your own instance using withScientific if you want to allow larger inputs.

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Defined in Data.Aeson.Types.FromJSON

FromJSON Natural 
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FromJSON () 
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FromJSON Bool 
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FromJSON Char 
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FromJSON Double 
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FromJSON Float 
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FromJSON Int 
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FromJSON Word 
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FromJSON v => FromJSON (KeyMap v)

Since: aeson-2.0.1.0

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FromJSON a => FromJSON (Identity a) 
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FromJSON a => FromJSON (First a) 
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FromJSON a => FromJSON (Last a) 
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FromJSON a => FromJSON (Down a)

Since: aeson-2.2.0.0

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FromJSON a => FromJSON (First a) 
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FromJSON a => FromJSON (Last a) 
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FromJSON a => FromJSON (Max a) 
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FromJSON a => FromJSON (Min a) 
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FromJSON a => FromJSON (WrappedMonoid a) 
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FromJSON a => FromJSON (Dual a) 
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(FromJSON a, Integral a) => FromJSON (Ratio a) 
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FromJSON a => FromJSON (IntMap a) 
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FromJSON a => FromJSON (Seq a) 
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(Ord a, FromJSON a) => FromJSON (Set a) 
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FromJSON v => FromJSON (Tree v) 
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FromJSON1 f => FromJSON (Fix f)

Since: aeson-1.5.3.0

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Defined in Data.Aeson.Types.FromJSON

(FromJSON1 f, Functor f) => FromJSON (Mu f)

Since: aeson-1.5.3.0

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Defined in Data.Aeson.Types.FromJSON

(FromJSON1 f, Functor f) => FromJSON (Nu f)

Since: aeson-1.5.3.0

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Defined in Data.Aeson.Types.FromJSON

FromJSON a => FromJSON (DNonEmpty a)

Since: aeson-1.5.3.0

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Defined in Data.Aeson.Types.FromJSON

FromJSON a => FromJSON (DList a) 
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Defined in Data.Aeson.Types.FromJSON

(Generic a, GFromJSON Zero (Rep a)) => FromJSON (Generically a)

Since: aeson-2.1.0.0

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FromJSON a => FromJSON (Array a) 
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(Prim a, FromJSON a) => FromJSON (PrimArray a) 
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FromJSON a => FromJSON (SmallArray a) 
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FromJSON a => FromJSON (Maybe a)

Since: aeson-1.5.3.0

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Defined in Data.Aeson.Types.FromJSON

(Eq a, Hashable a, FromJSON a) => FromJSON (HashSet a) 
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FromJSON a => FromJSON (Vector a) 
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(Prim a, FromJSON a) => FromJSON (Vector a) 
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(Storable a, FromJSON a) => FromJSON (Vector a) 
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Defined in Data.Aeson.Types.FromJSON

(Vector Vector a, FromJSON a) => FromJSON (Vector a) 
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FromJSON a => FromJSON (NonEmpty a) 
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Defined in Data.Aeson.Types.FromJSON

FromJSON a => FromJSON (Maybe a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSON a => FromJSON (a)

Since: aeson-2.0.2.0

Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a) #

parseJSONList :: Value -> Parser [(a)] #

omittedField :: Maybe (a) #

FromJSON a => FromJSON [a] 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser [a] #

parseJSONList :: Value -> Parser [[a]] #

omittedField :: Maybe [a] #

(FromJSON a, FromJSON b) => FromJSON (Either a b) 
Instance details

Defined in Data.Aeson.Types.FromJSON

HasResolution a => FromJSON (Fixed a)

This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype Scientific and provide your own instance using withScientific if you want to allow larger inputs.

Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSON (Proxy a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

(FromJSONKey k, Ord k, FromJSON v) => FromJSON (Map k v) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Map k v) #

parseJSONList :: Value -> Parser [Map k v] #

omittedField :: Maybe (Map k v) #

(FromJSON a, FromJSON b) => FromJSON (Either a b)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.FromJSON

(FromJSON a, FromJSON b) => FromJSON (These a b)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.FromJSON

(FromJSON a, FromJSON b) => FromJSON (Pair a b)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Pair a b) #

parseJSONList :: Value -> Parser [Pair a b] #

omittedField :: Maybe (Pair a b) #

(FromJSON a, FromJSON b) => FromJSON (These a b)

Since: aeson-1.5.1.0

Instance details

Defined in Data.Aeson.Types.FromJSON

(FromJSON v, FromJSONKey k, Eq k, Hashable k) => FromJSON (HashMap k v) 
Instance details

Defined in Data.Aeson.Types.FromJSON

(FromJSON a, FromJSON b) => FromJSON (a, b) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b) #

parseJSONList :: Value -> Parser [(a, b)] #

omittedField :: Maybe (a, b) #

FromJSON a => FromJSON (Const a b) 
Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSON b => FromJSON (Tagged a b) 
Instance details

Defined in Data.Aeson.Types.FromJSON

(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (These1 f g a)

Since: aeson-1.5.1.0

Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (These1 f g a) #

parseJSONList :: Value -> Parser [These1 f g a] #

omittedField :: Maybe (These1 f g a) #

(FromJSON a, FromJSON b, FromJSON c) => FromJSON (a, b, c) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c) #

parseJSONList :: Value -> Parser [(a, b, c)] #

omittedField :: Maybe (a, b, c) #

(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (Product f g a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Product f g a) #

parseJSONList :: Value -> Parser [Product f g a] #

omittedField :: Maybe (Product f g a) #

(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (Sum f g a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Sum f g a) #

parseJSONList :: Value -> Parser [Sum f g a] #

omittedField :: Maybe (Sum f g a) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d) => FromJSON (a, b, c, d) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d) #

parseJSONList :: Value -> Parser [(a, b, c, d)] #

omittedField :: Maybe (a, b, c, d) #

(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (Compose f g a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Compose f g a) #

parseJSONList :: Value -> Parser [Compose f g a] #

omittedField :: Maybe (Compose f g a) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e) => FromJSON (a, b, c, d, e) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e) #

parseJSONList :: Value -> Parser [(a, b, c, d, e)] #

omittedField :: Maybe (a, b, c, d, e) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f) => FromJSON (a, b, c, d, e, f) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f)] #

omittedField :: Maybe (a, b, c, d, e, f) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g) => FromJSON (a, b, c, d, e, f, g) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g)] #

omittedField :: Maybe (a, b, c, d, e, f, g) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h) => FromJSON (a, b, c, d, e, f, g, h) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i) => FromJSON (a, b, c, d, e, f, g, h, i) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j) => FromJSON (a, b, c, d, e, f, g, h, i, j) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k) => FromJSON (a, b, c, d, e, f, g, h, i, j, k) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l, FromJSON m) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l, m) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l, m) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l, m)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l, m) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l, FromJSON m, FromJSON n) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l, m, n) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l, m, n) #

(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l, FromJSON m, FromJSON n, FromJSON o) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) #

parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] #

omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) #

class ToJSON a where #

A type that can be converted to JSON.

Instances in general must specify toJSON and should (but don't need to) specify toEncoding.

An example type and instance:

-- Allow ourselves to write Text literals.
{-# LANGUAGE OverloadedStrings #-}

data Coord = Coord { x :: Double, y :: Double }

instance ToJSON Coord where
  toJSON (Coord x y) = object ["x" .= x, "y" .= y]

  toEncoding (Coord x y) = pairs ("x" .= x <> "y" .= y)

Instead of manually writing your ToJSON instance, there are two options to do it automatically:

  • Data.Aeson.TH provides Template Haskell functions which will derive an instance at compile time. The generated instance is optimized for your type so it will probably be more efficient than the following option.
  • The compiler can provide a default generic implementation for toJSON.

To use the second, simply add a deriving Generic clause to your datatype and declare a ToJSON instance. If you require nothing other than defaultOptions, it is sufficient to write (and this is the only alternative where the default toJSON implementation is sufficient):

{-# LANGUAGE DeriveGeneric #-}

import GHC.Generics

data Coord = Coord { x :: Double, y :: Double } deriving Generic

instance ToJSON Coord where
    toEncoding = genericToEncoding defaultOptions

or more conveniently using the DerivingVia extension

deriving via Generically Coord instance ToJSON Coord

If on the other hand you wish to customize the generic decoding, you have to implement both methods:

customOptions = defaultOptions
                { fieldLabelModifier = map toUpper
                }

instance ToJSON Coord where
    toJSON     = genericToJSON customOptions
    toEncoding = genericToEncoding customOptions

Previous versions of this library only had the toJSON method. Adding toEncoding had two reasons:

  1. toEncoding is more efficient for the common case that the output of toJSON is directly serialized to a ByteString. Further, expressing either method in terms of the other would be non-optimal.
  2. The choice of defaults allows a smooth transition for existing users: Existing instances that do not define toEncoding still compile and have the correct semantics. This is ensured by making the default implementation of toEncoding use toJSON. This produces correct results, but since it performs an intermediate conversion to a Value, it will be less efficient than directly emitting an Encoding. (this also means that specifying nothing more than instance ToJSON Coord would be sufficient as a generically decoding instance, but there probably exists no good reason to not specify toEncoding in new instances.)

Minimal complete definition

Nothing

Methods

toJSON :: a -> Value #

Convert a Haskell value to a JSON-friendly intermediate type.

toEncoding :: a -> Encoding #

Encode a Haskell value as JSON.

The default implementation of this method creates an intermediate Value using toJSON. This provides source-level compatibility for people upgrading from older versions of this library, but obviously offers no performance advantage.

To benefit from direct encoding, you must provide an implementation for this method. The easiest way to do so is by having your types implement Generic using the DeriveGeneric extension, and then have GHC generate a method body as follows.

instance ToJSON Coord where
    toEncoding = genericToEncoding defaultOptions

toJSONList :: [a] -> Value #

toEncodingList :: [a] -> Encoding #

omitField :: a -> Bool #

Defines when it is acceptable to omit a field of this type from a record. Used by (.?=) operator, and Generics and TH deriving with omitNothingFields = True.

Since: aeson-2.2.0.0

Instances

Instances details
ToJSON Key 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON DotNetTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Value 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Layer Source # 
Instance details

Defined in Codec.Tiled.Layer

ToJSON Chunk Source # 
Instance details

Defined in Codec.Tiled.Layer.Chunk

ToJSON LayerData Source # 
Instance details

Defined in Codec.Tiled.Layer.Data

ToJSON Map Source # 
Instance details

Defined in Codec.Tiled.Map

ToJSON Object Source # 
Instance details

Defined in Codec.Tiled.Object

ToJSON Point Source # 
Instance details

Defined in Codec.Tiled.Object.Point

ToJSON Template Source # 
Instance details

Defined in Codec.Tiled.Object.Template

ToJSON Text Source # 
Instance details

Defined in Codec.Tiled.Object.Text

ToJSON Property Source # 
Instance details

Defined in Codec.Tiled.Property

ToJSON Tileset Source # 
Instance details

Defined in Codec.Tiled.Tileset

ToJSON Frame Source # 
Instance details

Defined in Codec.Tiled.Tileset.Frame

ToJSON Grid Source # 
Instance details

Defined in Codec.Tiled.Tileset.Grid

ToJSON TilesetRef Source # 
Instance details

Defined in Codec.Tiled.Tileset.Ref

ToJSON Terrain Source # 
Instance details

Defined in Codec.Tiled.Tileset.Terrain

ToJSON Tile Source # 
Instance details

Defined in Codec.Tiled.Tileset.Tile

ToJSON TileOffset Source # 
Instance details

Defined in Codec.Tiled.Tileset.TileOffset

ToJSON Transformations Source # 
Instance details

Defined in Codec.Tiled.Tileset.Transformations

ToJSON WangColor Source # 
Instance details

Defined in Codec.Tiled.Tileset.WangColor

ToJSON WangSet Source # 
Instance details

Defined in Codec.Tiled.Tileset.WangSet

ToJSON WangTile Source # 
Instance details

Defined in Codec.Tiled.Tileset.WangTile

ToJSON World Source # 
Instance details

Defined in Codec.Tiled.World

ToJSON Map Source # 
Instance details

Defined in Codec.Tiled.World.Map

ToJSON Pattern Source # 
Instance details

Defined in Codec.Tiled.World.Pattern

ToJSON GID Source # 
Instance details

Defined in Data.Tiled.GID

ToJSON Version 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Void 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON CTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Int16 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Int32 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Int64 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Int8 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Word16 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Word32 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Word64 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Word8 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON IntSet 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Ordering 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON URI

Since: aeson-2.2.0.0

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Scientific 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Text 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Text 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON ShortText

Since: aeson-2.0.2.0

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON CalendarDiffDays 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Day 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Month 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Quarter 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON QuarterOfYear 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON DayOfWeek 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON DiffTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON NominalDiffTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON SystemTime

Encoded as number

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON UTCTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON CalendarDiffTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON LocalTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON TimeOfDay 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON ZonedTime 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON UUID 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Integer 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Natural 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON () 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: () -> Value #

toEncoding :: () -> Encoding #

toJSONList :: [()] -> Value #

toEncodingList :: [()] -> Encoding #

omitField :: () -> Bool #

ToJSON Bool 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Char 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Double 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Float 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Int 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON Word 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON v => ToJSON (KeyMap v) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Identity a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (First a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Last a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Down a)

Since: aeson-2.2.0.0

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (First a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Last a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Max a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Max a -> Value #

toEncoding :: Max a -> Encoding #

toJSONList :: [Max a] -> Value #

toEncodingList :: [Max a] -> Encoding #

omitField :: Max a -> Bool #

ToJSON a => ToJSON (Min a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Min a -> Value #

toEncoding :: Min a -> Encoding #

toJSONList :: [Min a] -> Value #

toEncodingList :: [Min a] -> Encoding #

omitField :: Min a -> Bool #

ToJSON a => ToJSON (WrappedMonoid a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Dual a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(ToJSON a, Integral a) => ToJSON (Ratio a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (IntMap a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Seq a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Seq a -> Value #

toEncoding :: Seq a -> Encoding #

toJSONList :: [Seq a] -> Value #

toEncodingList :: [Seq a] -> Encoding #

omitField :: Seq a -> Bool #

ToJSON a => ToJSON (Set a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Set a -> Value #

toEncoding :: Set a -> Encoding #

toJSONList :: [Set a] -> Value #

toEncodingList :: [Set a] -> Encoding #

omitField :: Set a -> Bool #

ToJSON v => ToJSON (Tree v) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON1 f => ToJSON (Fix f)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Fix f -> Value #

toEncoding :: Fix f -> Encoding #

toJSONList :: [Fix f] -> Value #

toEncodingList :: [Fix f] -> Encoding #

omitField :: Fix f -> Bool #

(ToJSON1 f, Functor f) => ToJSON (Mu f)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Mu f -> Value #

toEncoding :: Mu f -> Encoding #

toJSONList :: [Mu f] -> Value #

toEncodingList :: [Mu f] -> Encoding #

omitField :: Mu f -> Bool #

(ToJSON1 f, Functor f) => ToJSON (Nu f)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Nu f -> Value #

toEncoding :: Nu f -> Encoding #

toJSONList :: [Nu f] -> Value #

toEncodingList :: [Nu f] -> Encoding #

omitField :: Nu f -> Bool #

ToJSON a => ToJSON (DNonEmpty a)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (DList a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(Generic a, GToJSON' Value Zero (Rep a), GToJSON' Encoding Zero (Rep a)) => ToJSON (Generically a)

Since: aeson-2.1.0.0

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Array a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(Prim a, ToJSON a) => ToJSON (PrimArray a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (SmallArray a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Maybe a)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (HashSet a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Vector a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(Prim a, ToJSON a) => ToJSON (Vector a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(Storable a, ToJSON a) => ToJSON (Vector a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(Vector Vector a, ToJSON a) => ToJSON (Vector a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (NonEmpty a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (Maybe a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON a => ToJSON (a)

Since: aeson-2.0.2.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a) -> Value #

toEncoding :: (a) -> Encoding #

toJSONList :: [(a)] -> Value #

toEncodingList :: [(a)] -> Encoding #

omitField :: (a) -> Bool #

ToJSON a => ToJSON [a] 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: [a] -> Value #

toEncoding :: [a] -> Encoding #

toJSONList :: [[a]] -> Value #

toEncodingList :: [[a]] -> Encoding #

omitField :: [a] -> Bool #

(ToJSON a, ToJSON b) => ToJSON (Either a b) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Either a b -> Value #

toEncoding :: Either a b -> Encoding #

toJSONList :: [Either a b] -> Value #

toEncodingList :: [Either a b] -> Encoding #

omitField :: Either a b -> Bool #

HasResolution a => ToJSON (Fixed a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSON (Proxy a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(ToJSON v, ToJSONKey k) => ToJSON (Map k v) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Map k v -> Value #

toEncoding :: Map k v -> Encoding #

toJSONList :: [Map k v] -> Value #

toEncodingList :: [Map k v] -> Encoding #

omitField :: Map k v -> Bool #

(ToJSON a, ToJSON b) => ToJSON (Either a b)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Either a b -> Value #

toEncoding :: Either a b -> Encoding #

toJSONList :: [Either a b] -> Value #

toEncodingList :: [Either a b] -> Encoding #

omitField :: Either a b -> Bool #

(ToJSON a, ToJSON b) => ToJSON (These a b)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: These a b -> Value #

toEncoding :: These a b -> Encoding #

toJSONList :: [These a b] -> Value #

toEncodingList :: [These a b] -> Encoding #

omitField :: These a b -> Bool #

(ToJSON a, ToJSON b) => ToJSON (Pair a b)

Since: aeson-1.5.3.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Pair a b -> Value #

toEncoding :: Pair a b -> Encoding #

toJSONList :: [Pair a b] -> Value #

toEncodingList :: [Pair a b] -> Encoding #

omitField :: Pair a b -> Bool #

(ToJSON a, ToJSON b) => ToJSON (These a b)

Since: aeson-1.5.1.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: These a b -> Value #

toEncoding :: These a b -> Encoding #

toJSONList :: [These a b] -> Value #

toEncodingList :: [These a b] -> Encoding #

omitField :: These a b -> Bool #

(ToJSON v, ToJSONKey k) => ToJSON (HashMap k v) 
Instance details

Defined in Data.Aeson.Types.ToJSON

(ToJSON a, ToJSON b) => ToJSON (a, b) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b) -> Value #

toEncoding :: (a, b) -> Encoding #

toJSONList :: [(a, b)] -> Value #

toEncodingList :: [(a, b)] -> Encoding #

omitField :: (a, b) -> Bool #

ToJSON a => ToJSON (Const a b) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Const a b -> Value #

toEncoding :: Const a b -> Encoding #

toJSONList :: [Const a b] -> Value #

toEncodingList :: [Const a b] -> Encoding #

omitField :: Const a b -> Bool #

ToJSON b => ToJSON (Tagged a b) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Tagged a b -> Value #

toEncoding :: Tagged a b -> Encoding #

toJSONList :: [Tagged a b] -> Value #

toEncodingList :: [Tagged a b] -> Encoding #

omitField :: Tagged a b -> Bool #

(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (These1 f g a)

Since: aeson-1.5.1.0

Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: These1 f g a -> Value #

toEncoding :: These1 f g a -> Encoding #

toJSONList :: [These1 f g a] -> Value #

toEncodingList :: [These1 f g a] -> Encoding #

omitField :: These1 f g a -> Bool #

(ToJSON a, ToJSON b, ToJSON c) => ToJSON (a, b, c) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c) -> Value #

toEncoding :: (a, b, c) -> Encoding #

toJSONList :: [(a, b, c)] -> Value #

toEncodingList :: [(a, b, c)] -> Encoding #

omitField :: (a, b, c) -> Bool #

(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Product f g a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Product f g a -> Value #

toEncoding :: Product f g a -> Encoding #

toJSONList :: [Product f g a] -> Value #

toEncodingList :: [Product f g a] -> Encoding #

omitField :: Product f g a -> Bool #

(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Sum f g a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Sum f g a -> Value #

toEncoding :: Sum f g a -> Encoding #

toJSONList :: [Sum f g a] -> Value #

toEncodingList :: [Sum f g a] -> Encoding #

omitField :: Sum f g a -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d) => ToJSON (a, b, c, d) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d) -> Value #

toEncoding :: (a, b, c, d) -> Encoding #

toJSONList :: [(a, b, c, d)] -> Value #

toEncodingList :: [(a, b, c, d)] -> Encoding #

omitField :: (a, b, c, d) -> Bool #

(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Compose f g a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Compose f g a -> Value #

toEncoding :: Compose f g a -> Encoding #

toJSONList :: [Compose f g a] -> Value #

toEncodingList :: [Compose f g a] -> Encoding #

omitField :: Compose f g a -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e) => ToJSON (a, b, c, d, e) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e) -> Value #

toEncoding :: (a, b, c, d, e) -> Encoding #

toJSONList :: [(a, b, c, d, e)] -> Value #

toEncodingList :: [(a, b, c, d, e)] -> Encoding #

omitField :: (a, b, c, d, e) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f) => ToJSON (a, b, c, d, e, f) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f) -> Value #

toEncoding :: (a, b, c, d, e, f) -> Encoding #

toJSONList :: [(a, b, c, d, e, f)] -> Value #

toEncodingList :: [(a, b, c, d, e, f)] -> Encoding #

omitField :: (a, b, c, d, e, f) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g) => ToJSON (a, b, c, d, e, f, g) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g) -> Value #

toEncoding :: (a, b, c, d, e, f, g) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g)] -> Encoding #

omitField :: (a, b, c, d, e, f, g) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h) => ToJSON (a, b, c, d, e, f, g, h) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i) => ToJSON (a, b, c, d, e, f, g, h, i) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j) => ToJSON (a, b, c, d, e, f, g, h, i, j) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i, j) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i, j) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i, j)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i, j)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i, j) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k) => ToJSON (a, b, c, d, e, f, g, h, i, j, k) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i, j, k) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i, j, k) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i, j, k) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l, ToJSON m) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l, m) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l, ToJSON m, ToJSON n) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool #

(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l, ToJSON m, ToJSON n, ToJSON o) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Value #

toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Encoding #

toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] -> Value #

toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] -> Encoding #

omitField :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool #

remapFields :: String -> String Source #

Drop trailing _ and convert field names to lowercase.

remapFields_ :: String -> String Source #

Only drop trailing _.