swift byte[] in json object

Question

I'm trying to serialize json object like this

let jsonObject: [String: Any] = [
        "Description":problemDescription.text!,
        "Photo": byteArray
    ]
let jsonData = try! NSJSONSerialization.dataWithJSONObject(jsonObject, options: .PrettyPrinted)

but I'm getting this type of error:

swift 2 argument type string any does not conform to expected type any object.

Any ideas?

JSON supports only string, number (Int, double, bool) and . Your code is Swift 2, but `[String:Any]` as JSON dictionary belongs to Swift 3. And don't send pretty printed JSON. The server doesn't care. — vadian, Dec 21 '16 at 15:52
is the server expecting the photo data to be Base64 encoded? — Michael Dautermann, Dec 22 '16 at 00:08
@ Michael Dautermann - yes, the server needs base64 string converted to byte array — markan3, Dec 22 '16 at 06:54
@vadian - I have tried [String: AnyObject] but without success — markan3, Dec 22 '16 at 06:54
The problem is `byteArray`. Make sure that it contains only the supported types. — vadian, Dec 22 '16 at 08:02
@vadian - do you suggest that I try to convert bytearray into NSString or NSArray? — markan3, Dec 22 '16 at 08:16
It is not clear what `byteArray` is. `NSData` or C-Array or what? — vadian, Dec 22 '16 at 08:23
I'm trying to upload image to server along with other data in json format. The server accepts image in []byte format. So my idea was to first convert image to base64 string which I would then convert to byte[]. — markan3, Dec 22 '16 at 08:28

score 0 · Answer 1 · answered Dec 22 '16 at 09:36

update: It seems that when I'm printing json object after this line

let jsonData = try! NSJSONSerialization.dataWithJSONObject(jsonObject, options: .PrettyPrinted)

that that conversion to byte[] occurs itself. At least seems that way in console debug.

swift byte[] in json object

1 Answers1