Unable to follow Step 3 of Configuring MSAL for iOS - ios

Question

I am trying to follow instruction for configuring MSAL in this website:
https://github.com/AzureAD/microsoft-authentication-library-for-objc
I am on step #3 of Configuring MSAL, but I am running on roadblocks.
first issue:
On my AppDelegate.m file created by React-Native, there is already a function named application
/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import "AppDelegate.h"
#import <React/RCTBridge.h>
#import <React/RCTBundleURLProvider.h>
#import <React/RCTRootView.h>
#implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];
RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
moduleName:#"pat"
initialProperties:nil];
rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
UIViewController *rootViewController = [UIViewController new];
rootViewController.view = rootView;
self.window.rootViewController = rootViewController;
[self.window makeKeyAndVisible];
return YES;
}
- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
{
#if DEBUG
return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:#"index" fallbackResource:nil];
#else
return [[NSBundle mainBundle] URLForResource:#"main" withExtension:#"jsbundle"];
#endif
}
#end
where would I put the code in the instruction?
- (BOOL)application:(UIApplication *)app
openURL:(NSURL *)url
options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options
{
return [MSALPublicClientApplication handleMSALResponse:url
sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]];
}
If I modify the original application method, another error is popping up on this line
return [MSALPublicClientApplication handleMSALResponse:url
sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]];
as the method signature only has 1 argument for this method and not two, and if I remove the second argument to build the program, my app will not start at all.

Answer 1

The function you need to add is a different function to didFinishLaunching. Objective C considers the entire method signature, not just the first parameter. The function isn't called application, it is called application:didFinishLaunchingWithOptions: while the new method you need to add is application:openURL:options:.
You can just add the Microsoft supplied function to your AppDelegate.m file