Matt Matt - 10 months ago 49
JSON Question

Get array key value with Alamofire

I am making a simple request to get specific data from a JSON file, but I am having issues getting the exact data.

The JSON file:

"Something1": {
"Added": "09-10-2016",
"Expires": "09-12-2016",
"Reliability": "78%",
"Views": "2",
"Priority": "High"
"Something2": {
"Added": "09-11-2016",
"Expires": "09-13-2016",
"Reliability": "98%",
"Views": "5",
"Priority": "Low"

The swift code:

Alamofire.request("").responseJSON { response in
if let JSON = response.result.value as? [String:AnyObject] {

, it prints everything for Something1 just like it's supposed to but an error is thrown when I try to do
for example. How would I go about fixing this?

Answer Source

Your problem isn't related to Alamofire I'm afraid, it's more of deal with JSON using Swift. In your case when you make your first optional binding you're converting to a [String: AnyObject] and it's correct and this implies that you can subscript JSON["Something1"].

But after that when you try to subscript again over the JSON["Something1"]["Views"] the compiler doesn't know what have the JSON["Something1"] so you can't using as a dictionary instead you need to cast it again to a dictionary because is nested using optional binding like this:

if let nestedDictionary1 = JSON["Something1"] as? [String: AnyObject] {
    // access individual value in dictionary

    if let views = nestedDictionary1["Views"] as? Int {

You can read more about the work with JSON in this article of Apple.

I hope this help you.