How can I send fetched data to my ViewController? - swift

Question

Heres a caption of my API call:
So, I've got the abilities of the pokemons I needed, but now, idk how to get that data out of my Service class (where I'm doing all the parsing), and send it to my InfoViewController.
My purpose is to fetch that data on some label, and then show the ability names for every poke, according to their ID. Here is a caption of my app:
I wanna add an "Ability" label below Weight, and that's where I wanna assign the data. I have a whole CollectionView with all the pokemons, and the goal is assign the correct ability for each one of them.
I'm kinda struggling for a practical (and less verbose) way to reach this.
I apreciated every comment, any advice and suggestion too. Thanks!
EDIT: Heres my code:
extension InfoController: ServiceDelegate {
func finishedWithPokemonAbilities(abilities: [String], id: Int) {
self.abilities = abilities
self.ids = id
print(abilities)
}
}

Answer 1

You can create a custom Protocol(could call it PokemonServiceDelegate as an example) that your InfoViewController would inherit and implement. On your service object(I'm using PokemonService in the example) create a property with a type of PokemonServiceDelegate and set that property to the view controller that you want to receive the data. After the service finishes fetching the data, update the delegate by passing the data in the function declared in the protocol.
// Protocol your view controller will inherit
protocol PokemonServiceDelegate {
// Function your view controller will implement
func finishedWithPokemonAbilities(abilities: [String])
}
class InfoViewController: UIViewController {
// Reference to the service that makes the request
var service: PokemonService
override func viewDidLoad() {
...
// Set the delegate of the service to self
service.delegate = self
...
}
}
extension InfoViewController: PokemonServiceDelegate {
// Implement the protocol
func finishedWithPokemonAbilities(abilities: [String]) {
// Do something with their abilities here
}
}
struct PokemonService {
var delegate: PokemonServiceDelegate?
// The function that you call to get your abilities
func someUpdateFunc() {
...
let abilities = json[abilities].arrayValue.map {$0["ability"]["name"].stringValue}
delegate?.finishedWithPokemonAbilities(abilities: abilities)
...
}
}