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Swift API Manager -Alamofire-Refresh Token-With TestCases

  import Foundation import KeychainAccess enum APIError : Error { case accessTokenExpired case networkError // Add more error cases as needed } class APIManager { private let keychain = Keychain (service: "com.example.app.refreshToken" ) private let refreshTokenKey = "refreshToken" private var accessToken: String ? func callAPI < T : Codable >( urlString : String , method : String , parameters : [ String : Any ] ? , completion : @escaping ( Result < T , APIError >) -> Void ) { guard let url = URL (string: urlString) else { completion(.failure(.networkError)) return } var request = URLRequest (url: url) request.httpMethod = method // Add access token to the request headers if available if let token = accessToken { request.setValue( "Bearer \(token) " , forHTTPHeaderField: "Aut...

Protocol oriented programming Best Way in swift

Protocols in swift are the best way to make your swift code


Protocols in swift


    


  import UIKit

    import Foundation


    protocol ElectricityEquipment {

        var voltage: Int? { get set }

        func start()

        func stop()

    }


    protocol WaterElectricityEquipment {

        var voltage: Int? { get set }

        var waterLevel: Int? {get set}

        func start()

        func stop()

    }



    class Microwave: ElectricityEquipment {

        var voltage: Int?

        

        init?(_voltage: Int){

            guard 50...100 ~= _voltage else{

                print("Required valtage is not in the range 50 to 100")

                return nil

            }

          voltage = _voltage

        }

        

        func start(){

            print("Microwave is started")

        }

        func stop(){

            print("Microwave is stoped")

        }

    }


    class Dishwaser: WaterElectricityEquipment{

        

        var voltage: Int?

        var waterLevel: Int?

        

        init?(_voltage: Int, _waterLevel: Int){

            guard 200...220 ~= _voltage else{

                print("Required valtage is not in the range 200 to 220")

                return nil

            }

            guard 2...5 ~= _waterLevel else{

                print("Required waterLevel is not in the range 3 to 5")

                return nil

            }

          voltage = _voltage

          waterLevel = _waterLevel

        }

        

        func start(){

            print("Dishwaser is started")

        }

        func stop(){

            print("Dishwaser is stoped")

        }

        

    }


    class Kitchen{

        var microwave: Microwave?

        var dishwaser: Dishwaser?

    }


    let objKitchen = Kitchen()


    objKitchen.microwave = Microwave(_voltage: 200)

    objKitchen.microwave?.start()

    objKitchen.dishwaser = Dishwaser(_voltage: 240, _waterLevel: 3)

    objKitchen.dishwaser?.start()



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