How can i append JSON with multiple struct into array? - json

Question

In order to parse the JSON, I needed to use 3 structs.
struct AppleApi: Decodable {
let feed: Feed
}
struct Feed: Decodable {
let results: [Result]
}
struct Result: Decodable {
let artistName: String
let artWorkUrl: String
enum CodingKeys : String, CodingKey {
case artistName = "artistName"
case artWorkUrl = "artworkUrl100"
}
}
But when I try to populate the array with that parsed data I got that message:
Cannot convert value of type '[Result]' to expected argument type
'AppleApi'
This is my error message:
do {
let appData = try JSONDecoder().decode(AppleApi.self, from: jsonData)
print(appData.feed.results.count)
var dataApp = appData.feed.results
print(appData)
DispatchQueue.main.async {
self.feedReseult.append(dataApp)
self.myCollectionView.reloadData()
}
} catch let err {
print("Error",err)
}
And this is my array:
var feedReseult = [AppleApi]()
I probably need to reach to 3. struct to reach the array inside JSON in order to have same type of argument type. How can I do that?

Answer 1

Your declaration of feedReseult should be this,
var feedReseult = [Result]()
and append the dataApp as below,
DispatchQueue.main.async {
self.feedReseult.append(contentsOf: dataApp)
self.myCollectionView.reloadData()
}
Also i feel a typo, feedResult instead of feedReseult

Answer 2

It looks like your struct from Json is not put together correct, you should just need one struct per one JSON load. Could you give JSON sample please?
If you want to Decode Feed which is part of AppleAPI then you should create an object that is of type AppleApi.Feed and put results into that.
Hope this helps a little