Google Analytics nil error xcode swift - ios

Question

func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
let urlRequest = URLRequest(url: URL(string: "https://www.googleapis.com/youtube/v3/channels?part=id&forUsername=\(searchBar.text!.replacingOccurrences(of: " ", with: "%20"))&key=1234")!)
let task = URLSession.shared.dataTask(with: urlRequest) { (data, response, error) in
if error == nil {
do {
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as! [String : AnyObject]
if let items = json["items"] as? [String : AnyObject] {
if let id = items["id"] as? Int {
self.id = id
}
}
if let _ = json["error"] {
self.exists = false
}
DispatchQueue.main.async {
if self.exists{
print("\(self.id)")
}else {
self.exists = true
}
}
} catch let jsonError {
print(jsonError.localizedDescription)
}
}
}
task.resume()
}
I want to get the Youtube channel id from google analytics but it keeps saying "nil". I am not sure what i am doing wrong because everything works the same on my website! Please help! Thanks

Answer 1

When I use your code, the JSON I get back is
{
"kind": "youtube#channelListResponse",
"etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/uX-2P6nRpmv4I_ZWtiIyofqF5ss\"",
"pageInfo": {
"totalResults": 1,
"resultsPerPage": 5
},
"items": [
{
"kind": "youtube#channel",
"etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/3W7RccGn0o-nTtgCGrEvd-AbX6Y\"",
"id": "UCfpqR6vgT_mzWrbXcTYxL8w"
}
]
}
So, items["id"] is not an Int. Try
if let id = items["id"] as? String
instead
Also, change self.id to a String.
UPDATED:
Also,
if let items = json["items"] as? [String : AnyObject] {
won't work because items is an array of dictionaries.
You need
if let items = json["items"] as? [[String : AnyObject]] {
and then,
if let id = items[0]["id"] as? String
You should probably check the items.count, but you can do that once you get this working.