Data.Aeson.Result

Documentation

newtype Ok a

Make ok result look like '{"data": "data value"}'

Constructors

Ok

Fields

• getValue :: a

Instances

Show a => Show (Ok a)

Defined in Data.Aeson.Result

Methods

showsPrec :: Int -> Ok a -> ShowS

show :: Ok a -> String

showList :: [Ok a] -> ShowS

ToJSON a => ToJSON (Ok a)

Defined in Data.Aeson.Result

Methods

toJSON :: Ok a -> Value

toEncoding :: Ok a -> Encoding

toJSONList :: [Ok a] -> Value

toEncodingList :: [Ok a] -> Encoding

FromJSON a => FromJSON (Ok a)

Defined in Data.Aeson.Result

Methods

parseJSON :: Value -> Parser (Ok a)

parseJSONList :: Value -> Parser [Ok a]

newtype Err

Make error result look like '{"err": "error message"}'

Constructors

Err

Fields

• errMsg :: String

Instances

Eq Err

Defined in Data.Aeson.Result

Methods

(==) :: Err -> Err -> Bool

(/=) :: Err -> Err -> Bool

Ord Err

Defined in Data.Aeson.Result

Methods

compare :: Err -> Err -> Ordering

(<) :: Err -> Err -> Bool

(<=) :: Err -> Err -> Bool

(>) :: Err -> Err -> Bool

(>=) :: Err -> Err -> Bool

max :: Err -> Err -> Err

min :: Err -> Err -> Err

Show Err

Defined in Data.Aeson.Result

Methods

showsPrec :: Int -> Err -> ShowS

show :: Err -> String

showList :: [Err] -> ShowS

ToJSON Err

Defined in Data.Aeson.Result

Methods

toJSON :: Err -> Value

toEncoding :: Err -> Encoding

toJSONList :: [Err] -> Value

toEncodingList :: [Err] -> Encoding

FromJSON Err

Defined in Data.Aeson.Result

Methods

parseJSON :: Value -> Parser Err

parseJSONList :: Value -> Parser [Err]

Exception Err

Defined in Data.Aeson.Result

Methods

toException :: Err -> SomeException

fromException :: SomeException -> Maybe Err

displayException :: Err -> String

err :: String -> Err

Initial Err

ok :: a -> Ok a

Initial Ok

fromOk :: ToJSON a => Key -> Ok a -> Value

Make an Ok to JSON

toOk :: FromJSON a => Key -> Value -> Maybe (Ok a)

Make a JSON result to Ok

throwError :: Err -> IO a

Throw error to IO

type From = Int64

type Size = Int64

type Total = Int64

data List a

Make list result look like '{"users": ["user1"], "total": 1, "from": 0, "size": 10}'

Constructors

List

Fields

• getFrom :: From
• getSize :: Size
• getTotal :: Total
• getResult :: [a]

Instances

Show a => Show (List a)

Defined in Data.Aeson.Result

Methods

showsPrec :: Int -> List a -> ShowS

show :: List a -> String

showList :: [List a] -> ShowS

ToJSON a => ToJSON (List a)

Defined in Data.Aeson.Result

Methods

toJSON :: List a -> Value

toEncoding :: List a -> Encoding

toJSONList :: [List a] -> Value

toEncodingList :: [List a] -> Encoding

FromJSON a => FromJSON (List a)

Defined in Data.Aeson.Result

Methods

parseJSON :: Value -> Parser (List a)

parseJSONList :: Value -> Parser [List a]

emptyList :: List a

Empty list

merge :: [a] -> List b -> List a

Merge two list, from size and total, result is replace.

toList :: FromJSON a => Key -> Value -> Maybe (List a)

Make a JSON to List

fromList :: ToJSON a => Key -> List a -> Value

Make a List to JSON