Unable to access codable struct values in Swift - ios

Question

I am fetching user's data as json from a service and decoding into Codable User struct. I can access that property where I've fetched the response but I want to access that User struct property somewhere else, let's say in another class, function, etc.
I'm new to this and I'm thinking the ideal approach is to "at the time of fetching, store that data into Core Data or User Defaults and then update my views accordingly.
Please suggest what's the best and appropriate approach or wether there is any way to access codable struct values directly.
Here is my codable struct -
struct User: Codable {
let name : String?
enum CodingKeys: String, CodingKey {
case name = "Name"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
name = try values.decodeIfPresent(String.self, forKey: .name)
}
}
The wrong way I'm accessing struct in some function is -
UserInfo.CodingKeys.name.rawValue
//Output is the key string - 'Name'

Answer 1

I think static can help you
struct User: Codable {
let name : String?
private enum CodingKeys: String, CodingKey {
case name = "Name"
}
}
assume fetching data here
class FetchingClass{
static var user: User?
func fetchData(){
//After Url request success
do {
//assign directly to static varibale user
FetchingClass.user = try JSONDecoder().decode(User.self, from: data)
} catch _ {
}
}
}
use like this wherever you want without using coreData or UserDefaults
class AnotherClass{
func anotherClassFunc(){
//use if let or guard let
if let user = FetchingClass.user{
print(user.name)
}
//or
if let FetchingClass.user != nil {
print(FetchingClass.name)
}
}
}

Answer 2

You can try using a singleton reference
struct User: Codable {
let name : String?
enum CodingKeys: String, CodingKey {
case name = "Name"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
name = try values.decodeIfPresent(String.self, forKey: .name)
User.shared = self
}
}
Create another class which hold the ref. of User
final class AppGlobalManager {
static let sharedInstance = AppGlobalManager()
var currentUser: User? // Initialise it when user logged in
private init()
}
Then you can access any of the user data as
AppGlobalManager.sharedInstance.currentUser.name