Getting mySql data from url in swift 3 - again - swift

Question

I have asked this seemingly very simple and straight forward question a few times now, never got a solution.
I have a url to obtain mySql data
// 1. get url
let url = URL(string:"http://www.mobwebplanet.com/phpWebService/sample.php")
// 2. Fetch data from url
let data = try? Data(contentsOf: url!)
//playground Output is: 102 bytes. So obviously xcode gets the response data from the URL.
Then I move on to extracting the data:
//3. Create a dictionary from data:
let urlDict = try? JSONSerialization.jsonObject(with: data!, options: [])
// playground Output is: [["Latitude": "37.331741", "Address": "1 Infinite Loop Cupertino, CA", "Name": "Apple", "Longitude": "-122"]]
print(urlDict!)
// playground Output is: "(\n {\n Address = "1 Infinite Loop Cupertino, CA";\n Latitude = "37.331741";\n Longitude = "-122";\n Name = Apple;\n }\n)\n"
My understanding is urlDict is of a Any type. Am I correct?
My biggest question is how can I (cast or convet) urlDict so that I can access the value using key=>value? Like this:
urlDict!["Address"] Outputs "1 Infinite Loop Cupertino, CA"
urlDict!["Latitude"] Outputs "37.331741"...
I am a newbie to Swift so I am doing this as an exercise, any help will be greatly appreciated.

Answer 1

Your JSON response returns an Array of Dictionary objects. So you just need to cast correctly.
let urlString = "http://www.mobwebplanet.com/phpWebService/sample.php"
let url = URL(string: urlString)!
let data = try? Data(contentsOf: url)
if let json = try? JSONSerialization.jsonObject(with: data!, options: []) as? [[String:Any]] {
for location in json! {
print(location["Longitude"])
print(location["Latitude"])
print(location["Address"])
}
}
Output:
Optional(-122)
Optional(37.331741)
Optional(1 Infinite Loop Cupertino, CA)