title: Swift JSON parsing with Dictionary with Array of Dictionaries
body: <p>I am a beginner in iOS development with Swift language. I have a JSON file contains the data as below.</p>
  
  <pre><code>{
      "success": true,
      "data": [
               {
                   "type": 0,
                   "name": "Money Extension",
                   "bal": "72 $",
                   "Name": "LK_Mor",
                   "code": "LK_Mor",
                   "class": "0",
                   "withdraw": "300 $",
                   "initval": "1000 $"
               },
               {
  
               },
               {
  
               },
               ]
  }   
  </code></pre>
  
  <p>I want to parse this file and have to return the dictionary which contain the data in the JSON file. This is the method I wrote. </p>
  
  <pre><code>enum JSONError: String, ErrorType {
      case NoData = "ERROR: no data"
      case ConversionFailed = "ERROR: conversion from JSON failed"
  }
  
  func jsonParserForDataUsage(urlForData:String)-&gt;NSDictionary{
      var dicOfParsedData :NSDictionary!
      print("json parser activated")
      let urlPath = urlForData
      let endpoint = NSURL(string: urlPath)
      let request = NSMutableURLRequest(URL:endpoint!)
              NSURLSession.sharedSession().dataTaskWithRequest(request) { (data, response, error) -&gt; Void in
                  do {
  
                      guard let dat = data else {
                          throw JSONError.NoData
                      }
                      guard let dictionary: NSDictionary = try NSJSONSerialization.JSONObjectWithData(dat, options:.AllowFragments) as? NSDictionary else {
                          throw JSONError.ConversionFailed
                      }
  
                      print(dictionary)
                      dicOfParsedData = dictionary
  
                  } catch let error as JSONError {
                      print(error.rawValue)
                  } catch {
                      print(error)
                  }
                  }.resume()
  
            return dicOfParsedData
  
  }
  </code></pre>
  
  <p>When I modify this method to return a dictionary, it always return nil. How can I modify this method.</p>