       viewerUrl + "/authentication/v1/authenticate",
       data: body!.dataUsingEncoding(NSUTF8StringEncoding)!,
       contentType: "application/x-www-form-urlencoded",
-        accessToken : "",
         method: "POST",
       statusCode: nil)
     

  
  // Send an http request
  func httpTo(url: NSString, data: NSData, contentType: NSString,
    accessToken: NSString,
    method: NSString, var statusCode: NSInteger?) -> NSDictionary? {
      var req = NSMutableURLRequest(
        URL: NSURL(string: url)!)
      
      req.HTTPMethod = method
      req.setValue(contentType, forHTTPHeaderField: "Content-Type")
        if(accessToken.length > 0){
            req.setValue("Bearer " + accessToken, forHTTPHeaderField: "Authentication")}
      req.HTTPBody = data
      
      var response:

    var json = httpTo(viewerUrl + "/oss/v1/buckets",
      data: body.dataUsingEncoding(NSUTF8StringEncoding)!,
      contentType: "application/json",
      method: "POST",
      statusCode: nil)
    
