Swift - Parse array in nested JSON Object not working

Question

let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [.allowFragments])
        if let responseJSON = responseJSON as? [String:Any] {
            if let tJsonObj = xResponse["d"] as? [[String:Any]] {
               // not working here...
            }
        }

The tJsonObj variable does not get my json array content. My json looks like this:

{"d": "[{\"title\":\"xxx\",\"timestamp\":\"2017-10-16 23:53:40\"},{\"title\":\"Mein Test iPhone 7\",\"timestamp\":\"2017-10-17 18:16:24\"}]"}

I hope someone can help - thanks!

Have a look at: stackoverflow.com/questions/41734982/…

Umair Afzal
– Umair Afzal

2017-10-18 06:10:31 +00:00
Commented Oct 18, 2017 at 6:10 — Umair Afzal
– Umair Afzal, Commented Oct 18, 2017 at 6:10

vadian · Accepted Answer · 2017-10-18 04:50:25Z

2

The value for key d is another JSON string. You need to use JSONSerialization twice

do {
  if let responseJSON = try JSONSerialization.jsonObject(with: data) as? [String:Any],
     let tJsonObj = responseJSON["d"] as? String {
        if let innerJSON = try JSONSerialization.jsonObject(with: Data(tJsonObj.utf8)) as? [[String:Any]] { 
           for item in innerJSON {
              print(item)
           }
        }
  }
} catch {
  print(error)
}

edited Oct 18, 2017 at 4:50

answered Oct 18, 2017 at 4:45

vadian

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Comments

Steve Kuo · Accepted Answer · 2017-10-18 01:44:00Z

0

The inner JSON for d looks escaped. Valid JSON should look something like:

{"d": "[{"title":"xxx","timestamp":"2017-10-16 23:53:40"},...

Where is your JSON coming from?

answered Oct 18, 2017 at 1:44

Steve Kuo

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1 Comment

Neneil Over a year ago

The JSON coming from my server. Objects are created with JavaScriptSerializer. Im sure the JSON ist valid.

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