Swift Decodable Optional Key

Question

(This is a follow-up from this question: Using Decodable protocol with multiples keys.)

I have the following Swift code:

let additionalInfo          


        

Answer 1

Can you try pasting your sample JSON into quicktype to see what types it infers? Based on your question, I pasted your samples and got:

struct UserInfo: Codable {
    let firstname: String
    let age: Age?
    let lastname: String
}

struct Age: Codable {
    let realage: Int?
}

Making UserInfo.age and Age.realage optionals works, if that's what you're trying to accomplish.