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Courses Plus Student 4,732 Pointsapp crashes when I type an artist name
func searchForArtists(wihTerm term:String,completion: @escaping ([Artist],ItunesError?) -> Void){
let endpoint = Itunes.search(term: term, media: .music(entity:.musicArtist,attribute:.artistTerm))
let task = downloader.jsonTask(with: endpoint.request){ json,error in
DispatchQueue.main.async {
guard let json = json else{
completion([], error)
return//to exit current scope
}
guard let results = json["results"] as? [[String:Any]] else{
completion([],.jsonParsingFailure(message:"JSON Data does not contain results"))
return
}
let artists = results.flatMap{Artist(json: $0)}//flat map is used to flatten nested arrays
completion(artists,nil)
}
}
task.resume()
}