Unbox
Unbox is an easy to use Swift JSON decoder. Don't spend hours writing JSON decoding code - just unbox it instead!
Unbox is lightweight, non-magical and doesn't require you to subclass, make your JSON conform to a specific schema or completely change the way you write model code. It can be used on any model with ease.
Say you have your usual-suspect User model:
struct User {
let name: String
let age: Int
}That can be initialized with the following JSON:
{
"name": "John",
"age": 27
}To decode this JSON into a User instance, all you have to do is make User conform to Unboxable and unbox its properties:
struct User: Unboxable {
let name: String
let age: Int
init(unboxer: Unboxer) {
self.name = unboxer.unbox("name")
self.age = unboxer.unbox("age")
}
}Unbox automatically (or, actually, Swift does) figures out what types your properties are, and decodes them accordingly. Now, we can decode a User like this:
let user: User? = Unbox(dictionary)or even:
let user: User? = Unbox(data)Pretty nice and easy, right?
Now - that was a pretty simple example, but Unbox can decode even the most complicated JSON structures for you, with both required and optional values, all without any extra code on your part:
struct SpaceShip: Unboxable {
let weight: Double
let engine: Engine
let passengers: [Astronaut]
let launchLiveStreamURL: NSURL?
let lastPilot: Astronaut?
init(unboxer: Unboxer) {
self.weight = unboxer.unbox("weight")
self.engine = unboxer.unbox("engine")
self.passengers = unboxer.unbox("passengers")
self.launchLiveStreamURL = unboxer.unbox("liveStreamURL")
self.lastPilot = unboxer.unbox("lastPilot")
}
}
struct Engine: Unboxable {
let manufacturer: String
let fuelConsumption: Float
init(unboxer: Unboxer) {
self.manufacturer = unboxer.unbox("manufacturer")
self.fuelConsumption = unboxer.unbox("fuelConsumption")
}
}
struct Astronaut: Unboxable {
let name: String
init(unboxer: Unboxer) {
self.name = unboxer.unbox("name")
}
}Hope you enjoy unboxing your JSON!
For more updates on Unbox, and my other open source projects, follow me on Twitter: @johnsundell
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