Decodable for JSON with two structs under the same tag

Question

I have this json:

{ \"stuff\": [
 {
 \"type\":\"car\",
 \"object\":{
  \"a\":66,
  \"b\":66,
  \"c\":66 }},
 {
 \"type\":\"house\",
 \"object\":{
  \"d\":66,
  \         


        

Answer 1

You can handle multiple cases by using the enum just define your type, Giving code will help you to parse the JSON by using Struct modal with enum.

// MARK: - Welcome
struct Welcome: Codable {
    let stuff: [Stuff]
}

// MARK: - Stuff
struct Stuff: Codable {
    let type: String
    let object: Object
}

// MARK: - Object
struct Object: Codable {
    let a, b, c, d: Int?
    let e, f: Int?
}

enum Type: String {
    case car
    case house
}

func fetchResponse() {
    do {
        let jsonString = "your json string"
        let data = Data(jsonString.utf8)
        let result = try JSONDecoder().decode(Welcome.self, from: data)
        let objects = result.stuff
        let carObjects = objects.filter{$0.type == Type.car.rawValue}
        print("Its car array: \(carObjects)")// if you need filters car object then use this
        let houseObjects = objects.filter{$0.type == Type.house.rawValue}// if you need filters house object then use this
        print("Its house array: \(houseObjects)")
        // or you check in loop also
        objects.forEach { (stuff) in
            switch stuff.type {
            case Type.car.rawValue:
                print("Its car object")
            case Type.house.rawValue:
                print("Its house object")
            default:
                print("Also you can set your one case in `default`")
                break
            }
        }
    } catch {
        print(error.localizedDescription)
    }
}