stop HTTP request

In the normal application which is totally based on the Internet means not the offline mode, this types of an application always connect to the internet and make a Http or Https request on every click on the event in an application.

Some times user don’t want to stay in one controller on clicking the Http request and move to another controller due to that reason two HTTP request going on and response becomes slow so we need to discard the previous network request.

For this, we need to do some

1: Make a queue of the network request.

2: Discard the previous request.

For this, we need to do this

write this code in every UIViewController

 override func viewWillDisappear(_ animated: Bool) {
        let sessionManager = Alamofire.SessionManager.default
        sessionManager.session.getTasksWithCompletionHandler { dataTasks, uploadTasks, downloadTasks in
            dataTasks.forEach { $0.cancel() }
            uploadTasks.forEach { $0.cancel() }
            downloadTasks.forEach { $0.cancel() }
            self.timer.invalidate()
        }
    }

override func viewWillDisappear(_ animated: Bool) {

let sessionManager = Alamofire.SessionManager.default

sessionManager.session.getTasksWithCompletionHandler { dataTasks, uploadTasks, downloadTasks in

dataTasks.forEach { $0.cancel() }

uploadTasks.forEach { $0.cancel() }

downloadTasks.forEach { $0.cancel() }

self.timer.invalidate()

}

3: You can check whether it is working or not for this:

 Alamofire.request(urlString,method: HTTPMethod.post,parameters:params,headers: headers).validate().responseJSON { response in
            switch response.result {
            case .success(let resultData):
                   taskCallback(1,resultData as AnyObject)
                break
            case .failure(let error):
                if !Connectivity.isConnectedToInternet(){
                    taskCallback(2, "" as AnyObject)
                }
                else{
                    
                    print(error.localizedDescription)
                    taskCallback(3, error.localizedDescription as AnyObject)
                }
                break;
            
            }
            
            
        }

Alamofire.request(urlString,method: HTTPMethod.post,parameters:params,headers: headers).validate().responseJSON { response in

switch response.result {

case .success(let resultData):

taskCallback(1,resultData as AnyObject)

break

case .failure(let error):

if !Connectivity.isConnectedToInternet(){

taskCallback(2, "" as AnyObject)

}

else{

print(error.localizedDescription)

taskCallback(3, error.localizedDescription as AnyObject)

}

break;

}

Note: error.localizeddescription will return “cancelled”

Now you this in every controller for discard the previous request.

kunal prasad 26 October 2021

. . .

How to Stop the Current Http Request in Alamofire using Swift 3

stop HTTP request

Leave a Comment Cancel Reply

How to Stop the Current Http Request in Alamofire using Swift 3

stop HTTP request

Leave a Comment Cancel Reply

Message Sent!