Swift struct with tuples does not conform to Codable

Question

I'm trying to make a struct with optionals Codable/Decodable but I receive the error message:

Type 'item' does not conform to protocol 'Encodable'

Here is the code:

struct Item: Codable {
    let domanda: String
    let rispostaSemplice: Int?
    var rispostaComplessa: [(testoRisposta: String, valoreRisposta: Bool)]?
}

How can I make the tuple [(testoRisposta: String, valoreRisposta: Bool)]? conform?

You should make (testoRisposta: String, valoreRisposta: Bool) into another struct. — Sweeper
– Sweeper, Commented Apr 18, 2020 at 10:07
Tuples cannot be made to conform to Codable (see forums.swift.org/t/codable-tuples/14174). What does the JSON(?) for this look like? — Gereon
– Gereon, Commented Apr 18, 2020 at 10:10
Possible duplicate of How to make Tuple conform a Protocol in Swift? — pkamb
– pkamb, Commented Apr 25, 2024 at 23:41

Shehata Gamal · Accepted Answer · 2020-04-18 10:11:03Z

4

You need

struct Item: Codable {
  let domanda: String
  let rispostaSemplice: Int?
  var rispostaComplessa: [InnerItem]?
}

struct InnerItem: Codable { 
   var testoRisposta: String
   var valoreRisposta: Bool
}

answered Apr 18, 2020 at 10:11

Shehata Gamal

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