Convert JSON string to dictionary in Swift 3

Question

as an exercise for coding, I wrote a small program to receive MySql data on the Internet on the iPhone. On the server side. I wrote a php script to return script json data.

In xcode i have

[code]
.
.
.
     let jsonString = try? JSONSerialization.jsonObject(with: data!, options:    [])
    print(jsonString!)
    .
    .
    .
[/code]

In the xcode console, I have the following:

[code]
(
        {
        Address = "1 Infinite Loop Cupertino, CA";
        Latitude = "37.331741";
        Longitude = "-122";
        Name = Apple;
    }
)
[/code]

I have a function
    [code]

func convertToDictionary(text: String) -> [String: Any]? {
            if let data = text.data(using: .utf8) {
                do {
                    return try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any]
                } catch {
                    print(error.localizedDescription)
                }
            }
            return nil
        }
[/code]

When I pass jsonString to convertToDictionary (text :)

[code]
let dict = convertToDictionary(text: jsonString as! String)
[/code]

In the console, I get the error "I can not distinguish a value of the type" __NSSingleObjectArrayI "(0x10369bdb0) to" NSString "(0x1004eac60)."

but if I hardcode the json string, pass it to convertToDictionary (text :)

[code] 
let hardCodedStr = "{\"Address\":\"1 Infinite Loop Cupertino, CA\",\"Latitude\":\"37.331741\",\"Longitude\":\"-122\",\"Name\":\"Apple\"}"

let dict = convertToDictionary(text: hardCodedStr)
print(dict!)
[/code] 

It works great. Why is this? Thanks

Answer 1

, jsonObject(with:options:), , [String: Any] [Any], JSON.

, jsonString [String: Any], , , Any:

let jsonString = try? JSONSerialization.jsonObject(with: data!, options:    [])
print(jsonString!)

convertToDictionary, String, , , , String .

?

! convertToDictionary. jsonString , .

, :

let jsonString = try? JSONSerialization.jsonObject(with: data!, options: []) as! [String: Any]
                                                                             ^^^^^^^^^^^^^^^^^
                                                                             Add this part

jsonString. jsonString .