Swift 4 parsing json numeric keys with 1+n amount

Question

I still learning this Codable/Decodable new in Swift 4 for JSON parsing.

I am able to build a struct and grab the temperature keys but the Pump and othe

Answer 1

The value for key circuit is a dictionary.

If you need fast access by number decode the object as [String:Circuit]

public struct ServerReponse: Codable {
   let temperature: Temperature
   let circuit: [String:Circuit] 
}

If an array is more suitable write a custom initializer which additionally maps the values to an array.

public struct ServerReponse: Codable {
    let temperature: Temperature
    let circuits: [Circuit]

    private enum CodingKeys: String, CodingKey { case temperature, circuits = "circuit"}

    public init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        temperature = try container.decode(Temperature.self, forKey: .temperature)
        let circuitData = try container.decode([String:Circuit].self, forKey: .circuits)
        circuits = Array(circuitData.values).sorted(by: {$0.number < $1.number})
    }
}