Alamofire using value outside completion handler - swift

Question

I made a request to server with Alamofire and get data from it with completion handler, but I want to use some value outside of it, is it possible to do that?
let retur = Json().login(userName: param1, password: param2) { (json) in
print(json)
let jsonDic = JSON(json)
for item in jsonDic["result"].arrayValue {
let token = item["ubus_rpc_session"].stringValue
}
print(jsonDic["result"][1]["ubus_rpc_session"].stringValue)
}

Answer 1

If you want to access result outside the Alamofire then follow below code.
override func viewDidLoad()
{
super.viewDidLoad()
let retur = Json().login(userName: param1, password: param2) { (json) in
print(json)
let jsonDic = JSON(json)
for item in jsonDic["result"].arrayValue
{
let token = item["ubus_rpc_session"].stringValue
self.myFunction(str: token)
}
print(jsonDic["result"][1]["ubus_rpc_session"].stringValue)
}
}
func myFunction(str: String)
{
//Here it will print token value.
print("Token value ====%#",str)
}
Solution 2:
Here I'll use NSUserDefault, to know more about it you can search about it, there are multiple examples are available on google.
Now here, we will use NSUserDefault.
//Use below code in alamofire block to save token value.
let defaults = UserDefaults.standard
defaults.set(token, forKey: "tokenValue")
//Use below code to print anywhere.
let defaults = UserDefaults.standard
if let myToken = defaults.value(forKey: "tokenValue") as? String
{
print("defaults savedToken: \(myToken)")
}
Hope it works for you.
For more details you can refer this answer https://stackoverflow.com/a/41899777/5886755

Answer 2

As I mention in comment that you want to access your token everywhere in app you can do it this way:
Create a separate class for that like
import UIKit
class UserSettings: NSObject {
class func setAuthToken(authToken: String?) {
let defaults = NSUserDefaults.standardUserDefaults()
defaults.setObject(authToken, forKey: "authToken");
}
class func getAuthToken() -> String? {
let defaults = NSUserDefaults.standardUserDefaults()
return defaults.stringForKey("authToken")
}
}
Now you can set token this way:
let token = item["ubus_rpc_session"].stringValue
UserSettings.setAuthToken(token)
and you get token anywhere in app this way:
if let token = UserSettings.getAuthToken() {
//do your stuff here with token
}