SwiftyDropBox Auth flow issue

Thanks for the quick reply, Greg.

SwiftyDropbox version: 4.3.0

iOS version: 11.2.2

'open URL' code (identical to reference code):

func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
    if let authResult = DropboxClientsManager.handleRedirectURL(url) {
        switch authResult {
        case .success:
            print("Success! User is logged into Dropbox.")
        case .cancel:
            print("Authorization flow was manually canceled by user!")
        case .error(_, let description):
            print("Error: \(description)")
        }
    }
    return true
}

Hi Greg,

When I put a print statement directly after 'open url' and immediately before 'handleRedirectURL', the print statement is not executed (even after successfully authenticating to Dropbox and switching back to my app). 

Is there any other debugging I can do?

Only a single 'open url' definition in the project, so that's not the issue. Oh well, I'll forego Dropbox support for the time being and hope that an update sorts things out.

Thanks kindly for your time and help.

Greg

Sure. I created a dummy project to test, and I get the same result. This tells me I've got to be missing something fundmental.

ViewController:

import UIKit

import SwiftyDropbox

class ViewController: UIViewController {

    @IBAction func launchAuth(_ sender: Any) {

        authenticateToDropBox()

    }

    @IBAction func testClient(_ sender: Any) {

        if let _ = DropboxClientsManager.authorizedClient {

            print("Got client.")

        } else {

            print("No client.")

        }

    }

    // Dropbox stuff

    fileprivate func authenticateToDropBox() {

        if DropboxClientsManager.authorizedClient == nil {

            DropboxClientsManager.authorizeFromController(UIApplication.shared,

                                                          controller: self,

                                                          openURL: { (url: URL) -> Void in

                                                            UIApplication.shared.open(url, options: [:], completionHandler: nil)

            })

        }

    }

}

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

        // Override point for customization after application launch.

        if DropboxClientsManager.authorizedClient == nil {

            DropboxClientsManager.setupWithAppKey("<redacted>")

        }

        // Setup redirect back into app after Dropbox auth

        func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {

            print("open URL getting called")

            if let authResult = DropboxClientsManager.handleRedirectURL(url) {

                switch authResult {

                case .success:

                    print("Success! User is logged into Dropbox.")

                case .cancel:

                    print("Authorization flow was manually canceled by user!")

                case .error(_, let description):

                    print("Error: \(description)")

                }

            }

            return true

        }

        return true

    }

When I click the first button (launchAuth), I am taken to the authentication dialog, where I log in. I click 'Allow' and am returned to my app. When I click the second button (testClient), I get nil for the authorizedClient (i.e., prints 'No client').

Thanks and let me know if something's missing.