Swift2 JSON Parsing with multiple dictionaries - json

Question

I have successfully read the data from the following site: http://free.currencyconverterapi.com/api/v3/countries. I can see the values in the debug window. However, I am unable to iterate over the items. There are more than 200 items and I would like to iterate through them and print out their values (name, currency name, id, etc...)
The code to read the data:
func countryList() {
// Do any additional setup after loading the view.
let jsonUrl = "http://free.currencyconverterapi.com/api/v3/countries"
let session = NSURLSession.sharedSession()
let shotsUrl = NSURL(string: jsonUrl)
let task = session.dataTaskWithURL(shotsUrl!) {
(data, response, error) -> Void in
do {
let jsonData = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers ) as! NSDictionary
//let results: [String:[String:[String]]] = jsonData["results"]! as! [String : [String : [String]]]
let results = jsonData["results"]!
// iterate all items and print values
// how ???
} catch _ {
// Error
}
}
task.resume()
}
I have tried the following: let results : [String:[String:[String]]] = jsonData["results"]! however this does not work, and I would be surprised if it did :).
Any pointers?
using Xcode 7.1 and Swift 2
Result data returned with JSON (sample):
Country & Currency List{
"results":{
"GQ":{
"currencyId":"GQE",
"currencyName":"Central African CFA franc",
"name":"Equatorial Guinea",
"alpha3":"GNQ",
"id":"GQ"
},
"TD":{
"currencyId":"XAF",
"currencyName":"Central African CFA franc",
"name":"Chad",
"alpha3":"TCD",
"id":"TD"
}
.
.
.

Answer 1

The value of key results is a dictionary, it can be enumerated with a simple for .. in loop.
countrycode is the key, info the value.
Downcasting a dictionary to [String:AnyObject] includes all forms of nested objects.
This code prints out the country code and the name of each item
do {
let jsonData = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers ) as! [String:AnyObject]
let results = jsonData["results"] as! [String:AnyObject]
for (countryCode, info) in results {
print(countryCode, info["name"] as! String)
}
}
Be aware that there is no order because a dictionary is unordered by definition