Initial data commit

Task/JSON/Haskell/json-3.hs

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+{-# LANGUAGE DeriveGeneric, OverloadedStrings #-}
+import Data.Aeson
+import GHC.Generics
+
+data Person = Person { firstName :: String
+                     , lastName  :: String
+                     , age :: Maybe Int
+                     } deriving (Show, Eq, Generic)
+
+instance FromJSON Person
+instance ToJSON Person
+
+main = do
+    let test1 = "{\"firstName\":\"Bob\", \"lastName\":\"Smith\"}"
+        test2 = "{\"firstName\":\"Miles\", \"lastName\":\"Davis\", \"age\": 45}"
+    print (decode test1 :: Maybe Person)
+    print (decode test2 :: Maybe Person)