how to get JSON data from login? - ios

Question

I am able to fetch data using Oauth in Alamofire for login successfully but how to get JSON data in Another viewController.
func loginAccess(){
let headers = [
"Content-Type": "application/x-www-form-urlencoded"
]
let parameters = [
"UserName": username_textfield.text! as String,
"Password": password_textfield.text! as String,
"grant_type": "password",
]
// let url = NSURL(string: "http://192.168.100.5:84/Token")!
Alamofire.request("http://192.168.100.5:84/Token", method: .post, parameters: parameters, encoding: URLEncoding.httpBody, headers: headers).responseJSON { (response:DataResponse<Any>) in
switch(response.result) {
case .success(_):
if response.result.value != nil{
let statusCode = (response.response?.statusCode)!
print("...HTTP code: \(statusCode)")
if let JSON = response.result.value {
print("JSON: \(JSON)")
// }
}
if statusCode == 200{
self.view.makeToast(message: "Welcome !!")
self.performSegue(withIdentifier: "mainview", sender: self)
}else{
self.view.makeToast(message: "Username or password invalid")
}
}
break
case .failure(_):
print(response.result.error!)
break
}
}
}
modal class
class Login{
var access_token = String()
var token_type = String()
var expire_in = String()
var username = String()
var masterid = String()
var name = String()
var access = String()
var issued = String()
var expries = String()
init(loginJson:JSON){
self.access_token = loginJson["access_token"].stringValue
self.token_type = loginJson["token_type"].stringValue
self.expire_in = loginJson["expires_in"].stringValue
self.username = loginJson["userName"].stringValue
self.masterid = loginJson["MasterID"].stringValue
self.name = loginJson["Name"].stringValue
self.access = loginJson["Access"].stringValue
self.issued = loginJson[".issued"].stringValue
self.expries = loginJson[".expires"].stringValue
}
}
is this able to access JSON data in Another ViewController or we need another function? if this is possible in same function then how
it could be solved?

Answer 1

Replace this with your code
func getlogin(){
let headers = [
"Content-Type": "application/x-www-form-urlencoded"
]
let parameters = [
"UserName": username_textfield.text! as String,
"Password": password_textfield.text! as String,
"grant_type": "password",
]
// let url = NSURL(string: "http://192.168.100.5:84/Token")!
Alamofire.request("http://192.168.100.5:84/Token", method: .post, parameters: parameters, encoding: URLEncoding.httpBody, headers: headers).responseJSON { (response:DataResponse<Any>) in
switch(response.result) {
case.success(let data):
print("success",data)
let statusCode = (response.response?.statusCode)!
if statusCode == 200{
self.view.makeToast(message: "Welcome !!")
// self.performSegue(withIdentifier: "mainview", sender: self)
}else{
self.view.makeToast(message: "Username or password invalid")
}
self.myResponse = JSON(data)
let login = Login(loginJson: self.myResponse)
DispatchQueue.main.async(execute: { () -> Void in
self.performSegue(withIdentifier: "pass_data", sender: login)
})
case.failure(let error):
print("Not Success",error)
}
}
}
you can add this also
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "pass_data" {
if let eventsVC = segue.destination as? secondViewController,
let loginData = sender as? Login {
eventsVC.login_details = loginData
}
}
}
in your second view controller you shuold add variable like this var
login_details : Login? to get JSON data

Answer 2

You can pass value using closure .
Create Method
func loginAccess(callBack: (_ responseObject : [Any]) -> Void) -> Void{
if let JSON = response.result.value {
callBack(JSON as Any) // here data passed
}
}
if statusCode == 200{
self.view.makeToast(message: "Welcome !!")
self.performSegue(withIdentifier: "mainview", sender: self)
}else{
self.view.makeToast(message: "Username or password invalid")
callBack([:] as Any)
}
}
Calling method
self.loginAccess { (responseObject) in
print(responseObject) // this is your data
//create your model here
}

Answer 3

How to get data from this login?
func onlinecheckin(){
self.password.resignFirstResponder()
let password1 = password.text;
if let user1 = user.text {
// To trim the characters to remove the empty space
let username = user1.trimmingCharacters(in: CharacterSet.whitespaces)
let passwordnya = password1!.trimmingCharacters(in: CharacterSet.whitespaces)
//Send user data to server side
let myUrl = URL(string: "https://link/jgcm/login.php")!
var request = URLRequest(url: myUrl)
request.httpMethod = "POST"
let postString = "user=\(username) & password=\(passwordnya)"
request.httpBody = postString.data(using: String.Encoding.utf8)
task = URLSession.shared.dataTask(with: request as URLRequest) { data, response, error in
print("response online checking =\(String(describing: response))")
if error != nil {
task.cancel() // To cancel uploading the task.
self.AlertMessage("Error. Please press Login button again.");
print("error=\(String(describing: error))")
return
}
if let datadownload = data {
resultlogin = NSString(data: datadownload, encoding: String.Encoding.utf8.rawValue)!.replacingOccurrences(of: " ", with: "");
print("result of online checking:\(resultlogin)")
}
DispatchQueue.main.async(execute: { () -> Void in
if resultlogin.contains("already") {
let secondViewController = self.storyboard?.instantiateViewController(withIdentifier: "menu")
self.present(secondViewController!,animated: true,completion: nil)
} else {
self.AlertMessage("User atau Password Salah");
}
})
}
task.resume()
}}