Get data synchronously using nsurlsession (by adding semaphores)

/Create Nsurl Object let urlstring:string= ' http://hangge.com ' let url:nsurl! = Nsurl (string:urlstring)//Create request object Let Request:nsurlrequest = Nsurlrequest (url:url) let         session = Nsurlsession.sharedsession ()//Set signal start let         semaphore = dispatch_semaphore_create (0) get         datatask = Session.datataskwithrequest (Request,    Completionhandler: {(data, response, error), Void in        if error! = nil{            print (Error?. Code)            print (error?). Description)        }else{let            str = nsstring (data:data!, encoding:nsutf8stringencoding)            print (str)        }        //Set signal end                 dispatch_semaphore_signal (semaphore)}) as Nsurlsessiontask         // Use the Resume method to start the task Datatask.resume ()//wait for completion         : Dispatch_semaphore_wait (semaphore, dispatch_time_forever) print ("Data loading is complete! ")//Continue executing other code ....

Get data synchronously using nsurlsession (by adding semaphores)