Transmittable.swift

import Foundation

protocol Transmittable : Codable {
    
}

extension Transmittable {
    func encode() -> Data {
        var data:Data = Data()
        try? data = JSONEncoder().encode(self)
        return data
    }
    
    static func decode(from data:Data?) -> Self? {
        guard let data = data else {
            return nil
        }
        let decoder = JSONDecoder()
        let response = try? decoder.decode(self, from: data)
        return response
    }
}