Failing to make request to server using alamofire and DisabledTrustEvaluator - swift

Question

I am trying to get some data off a server that created I using asp.net core, however; when trying to get the data in my Swift iOS code it keeps on failing without any error showing. I have done all the TSL checks in my info.plist.
model.swift
import Foundation
struct User: Decodable {
let name:String
let userEmail: String
let firebaseId: String
let userMode: Int
let profileImg: String
let loginType: Int?
}
userController.swift
import UIKit
import ProgressHUD
class LoginViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
removeNavBar()
// UserApiService.shared.makeGetAPICall(user:{users, error in
// // ProgressHUD.dismiss()
// guard let users = users else {return}
// print(users)
// guard let errors = error else {return}
// print(errors)
// })
}
#IBAction func googleLogin(_ sender: Any) {
ProgressHUD.animationType = .circleSpinFade
ProgressHUD.show()
UserApiService.init().makeGetAPICall(user: {users, error in
ProgressHUD.dismiss()
guard let users = users else {return}
print(users)
guard let errors = error else {return}
print(errors)
})
}
private func removeNavBar(){
navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)
navigationController?.navigationBar.shadowImage = UIImage()
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destination.
// Pass the selected object to the new view controller.
}
*/
}
apiService.swift
import Foundation
import Alamofire
class UserApiService{
static let shared = UserApiService.init()
let session: Session = {
let manager = ServerTrustManager(allHostsMustBeEvaluated: false,evaluators: ["localhost:5001": DisabledTrustEvaluator()])
let configuration = URLSessionConfiguration.af.default
return Session(configuration: configuration, serverTrustManager: manager)
}()
//MARK:- GET
func makeGetAPICall(user completionHandler: #escaping ([User]?,Error?) -> Void) {
var urlComponent = URLComponents()
urlComponent.scheme = "https"
urlComponent.host = "localhost"
urlComponent.port = 5001
urlComponent.path = "/api/user"
print(urlComponent.url!)
guard let url = urlComponent.url else {
return
}
session.request(url, method: .get).validate().responseDecodable(of: [User].self) {(response) in
switch response.result{
case .success:
guard let users = response.value else {
return
}
print(users)
completionHandler(users, nil)
case .failure(let error):
completionHandler(nil, error)
}
}
}
}
info.plist
<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>localhost</key>
<dict>
<key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
<true/>
<key>NSIncludesSubdomains</key>
<true/>
</dict>
</dict>
</dict>
<key>NSAllowsArbitraryLoadsForMedia</key>
<true/>
<key>NSAllowsLocalNetworking</key>
<true/>
<key>NSAllowsArbitraryLoadsInWebContent</key>
<true/>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
I debugged it with breakpoints, and I am getting <unavailable; try printing with "VO" or "PO">. I'm having trouble understanding what that means and how I should resolve this.
Also, I have changed my info.plist and it looks like this, however; I am still getting the same issue
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoadsForMedia</key>
<true/>
<key>NSAllowsLocalNetworking</key>
<true/>
<key>NSAllowsArbitraryLoadsInWebContent</key>
<true/>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>

Answer 1

So I managed to fix my issue, Hooray!!!
What I did was, I changed evaluators: ["localhost:5001": DisabledTrustEvaluator() to evaluators: ["localhost": DisabledTrustEvaluator()
Also, when calling my method, I was referencing normally from a class but then after, I had to call it as a singleton, and then, HEY PRESTO, IT WORKED!
#IBAction func googleLogin(_ sender: Any) {
ProgressHUD.animationType = .circleSpinFade
ProgressHUD.show()
UserApiService.shared.makeGetAPICall(user: {users, error in
ProgressHUD.dismiss()
guard let users = users else {return}
print(users)
guard let errors = error else {return}
print(errors)
})
}
This link helped me figure out part of the reason for my issues https://github.com/Alamofire/Alamofire/issues/3336