Key Encoding and Decoding in Swift

PrettyPrint2.Swift

let object = ["key1":"Bengal tiger", "key2":"Siberian tiger", "key3 ":"white rhino", "key4":"African elephant"]
let encoder = JSONEncoder()
encoder.outputFormatting = [.sortedKeys, .prettyPrinted]
let encoded = try? encoder.encode(object)
print(String(data: encoded!, encoding: .utf8)!)

//output
{
   "key1" : "Bengal tiger",
   "key2" : "Siberian tiger",
   "key3" : "white rhino",
   "key4" : "African elephant"
}