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![Code in a box
func getFilms(completion: @escaping ([Film]?, APIError?) -> Void) {
let url = SWAPI.baseURL.appendingPathCom...](https://image.slidesharecdn.com/writingyourappswiftly-slides-170302083612/75/Writing-Your-App-Swiftly-9-2048.jpg?cb=1668210117)
![New, improved code
func getFilms(completion: @escaping (Result<[Film], APIError>) -> Void) {
let task = self.session
.data...](https://image.slidesharecdn.com/writingyourappswiftly-slides-170302083612/75/Writing-Your-App-Swiftly-13-2048.jpg?cb=1668210117)
![Enums to the rescue!
final class MainView: UIView {
enum State {
case loading
case loaded(items: [MovieItem])
case error(m...](https://image.slidesharecdn.com/writingyourappswiftly-slides-170302083612/75/Writing-Your-App-Swiftly-32-2048.jpg?cb=1668210117)
