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...
#Swift, to supporting decoding and encoding we must adopt the #NSCoding protocol and implement its methods. #Apple has introduced a new way to decode and encode the #JSON data using with Codable since Swift 4. You need to consume the following API to search and display images. - Flickr Https://www.flickr.com/services/api/flickr.photos.search.htm The API results in search results for a Documentation on this page to get the image URLS: https://www.flickr.com/services/api/misc.urls.html XXXXXXXX - API Key Open Test Api - https://api.flickr.com/services/rest/?method=flickr.galleries.getPhotos&api_key=XXXXXXXX&gallery_id=66911286-72157647277042064&format=json&nojsoncallback=1 Model: - import Foundation struct ResponseCodable : Codable { let photos : Photos ? let stat : String ? enum CodingKeys : String , CodingKey { case photos = "photos" ...