Confused with Codable - ios

Question

I'm trying to fetch movie data using The Movie Database API and display them on a table view, but my code isn't actually getting any data.
class MovieData: NSObject, Decodable {
var movies: [Movie]?
private enum CodingKeys: String, CodingKey {
case movies = "results"
}
}
I think it has something to do with my coding keys because the movie data I want to retrieve are within an array. Seen here. But I'm a little confused with how Codable works.
class Movie: NSObject, Decodable {
var title: String?
var year: String?
var rate: Double?
var posterImage: String?
var overview: String?
private enum MovieKeys: String, CodingKey {
case title
case overview
case releaseDate = "release_date"
case rate = "vote_average"
case posterImage = "poster_path"
}
required init(from decoder: Decoder) throws {
let movieContainer = try decoder.container(keyedBy: MovieKeys.self)
// Get movie info
title = try movieContainer.decode(String.self, forKey: .title)
overview = try movieContainer.decode(String.self, forKey: .overview)
posterImage = try movieContainer.decode(String.self, forKey: .posterImage)
rate = try movieContainer.decode(Double.self, forKey: .rate)
// releaseDate = try movieContainer.decode(String.self, forKey: .releaseDate)
}
}
This is what I'm using to make the api call, so when the user loads into the view the API will fetch movie data and display it on a cell.
override func viewDidLoad() {
super.viewDidLoad()
let requestURL = URL(string: "https://api.themoviedb.org/3/movie/popular?api_key=\(apiKey)&language=en-US&page=1")
if let requestURL = requestURL {
Task {
do {
let (data, response) = try await URLSession.shared.data(from: requestURL)
guard let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 else {
throw MovieListError.invalidServerResponse
}
let decoder = JSONDecoder()
let movie = try decoder.decode(Movie.self, from: data)
print(data)
print(movie)
}
catch {
print(error)
}
}
}
}

Answer 1

It seems your are trying to decode a wrong object. It should be MovieData.self not Movie.self. And then you can iterate over the array of Movie.
override func viewDidLoad() {
super.viewDidLoad()
let requestURL = URL(string: "https://api.themoviedb.org/3/movie/popular?api_key=\(apiKey)&language=en-US&page=1")
if let requestURL = requestURL {
Task {
do {
let (data, response) = try await URLSession.shared.data(from: requestURL)
guard let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 else {
throw MovieListError.invalidServerResponse
}
let decoder = JSONDecoder()
// change Movie.self to MovieData.self
let movies = try decoder.decode(MovieData.self, from: data)
print(data)
print(movies)
}
catch {
print(error)
}
}
}
}