Convert Int to String while decoding JSON in Swift

Question

I want to decode this JSON to a normal-looking Struct or Class but I'm facing a problem that I need to create a whole new Struct for property age, how can I avoid that and save age Directly to class Person?

Also, it would be good to convert Int to String

{
    "name": "John",
    "age": {
                    "age_years": 29
           }
}

struct Person: Decodable {
    var name: String
    var age: Age
}

struct Age: Decodable {
    var age_years: Int
}

I want to get rid of Age and save it like:

struct Person: Decodable {
        var name: String
        var age: String
}

Answer 1

You can try

struct Person: Decodable {
    let name,age: String
    private enum CodingKeys : String, CodingKey {
          case name, age
    }
    init(from decoder: Decoder) throws {
       let container = try decoder.container(keyedBy: CodingKeys.self)
       name = try container.decode(String.self, forKey: .name)
        do {
            let years = try container.decode([String:Int].self, forKey: .age)
            age = "\(years["age_years"] ?? 0)"
        }
        catch {
            let years = try container.decode([String:String].self, forKey: .age)
            age = years["age_years"] ?? "0"
        }
     
    }
}