[Solved] How to wait core data add functions step by step in swift 3

by


try using completion handler for your function or may try Operation queue with dependency to wait 

    coreDataAdd (where : "User", onCompletion: { (isFinished) in
       if isFinished {
          coreDataAdd (where : "Profile", onCompletion: { (isFinished) in
          if isFinished { 
          coreDataAdd (where : "Profile", onCompletion: { (isFinished) in
            if isFinished
            //Here segue to the next view
            let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
                                    let nextViewController = storyBoard.instantiateViewController(withIdentifier: "Profile") as! profileViewController
                                    self.present(nextViewController, animated:true, completion:nil)

       })
       } 
       }

       })
    })



    func coreDataAdd(where : String, onCompletion: @escaping (Bool) -> Void) {


    let headers: HTTPHeaders = [
        "Accept": "text/html",
        "Content-Type" : "application/x-www-form-urlencoded"
    ]

    let parameters = [
        "user": "\(prefs.string(forKey: "user")!)"
        ] as [String : String]
    Alamofire.request(geturl, method: .post, parameters: parameters, encoding: URLEncoding.httpBody, headers: headers)
        .responseData{ response in
            let json = JSON(data:response.result.value!)  
            let success = json["Success"]["status"].boolValue
            let addJson = json["\(where)_list"].array

            if success == true {

                if where == "User" {
               for users in addJson! {
                       let addUser =  NSEntityDescription.insertNewObject(forEntityName: "\(where)", into:context) as! User
                        addUser.id = users["id"].int32Value
                        addUser.name = users["name"].stringValue
                        (UIApplication.shared.delegate as! AppDelegate).saveContext()

                 } 
                onCompletion(true)
                }



            }else{


            }
              }

}

1

solved How to wait core data add functions step by step in swift 3