Making App share link with data using Branch in iOS

    pod 'Branch'
 

func application(_ application: UIApplication, didFinishLaunchingWithOptions
launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
  	let branch: Branch = Branch.getInstance()
  branch?.initSession(launchOptions: launchOptions, automaticallyDisplayDeepLinkController: true, deepLinkHandler: { params, error in
      if error == nil {
          // params are the deep linked params associated with the link that the user clicked -> was re-directed to this app
          // params will be empty if no data found
          // ... insert custom logic here ...
          print("params: %@", params.description)
      }
  })
}

// Respond to URI scheme links
func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
    // pass the url to the handle deep link call
    Branch.getInstance().handleDeepLink(url);

    // do other deep link routing for the Facebook SDK, Pinterest SDK, etc
    return true
}

// Respond to Universal Links
func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([Any]?) -> Void) -> Bool {
    // pass the url to the handle deep link call
    Branch.getInstance().continue(userActivity)
    return true
}

import Branch

func setViewingMonster(_ monster: BranchUniversalObject) {
        self.branchUniversalObject = monster

        let linkProperties = BranchLinkProperties()
        linkProperties.feature = "monster_sharing"
        linkProperties.channel = "twitter"
        monster.title =  “MyApp”
        monster.contentDescription = “Install MyApp and become happy”
        monster.imageUrl = “Your_App_Icon_URL”
        monster.addMetadataKey("referralId", value: “44444”)
        self.branchUniversalObject.getShortUrl(with: linkProperties, andCallback: {(_ url: String, _ error: Error?) -> Void in
            if error == nil {
                print("new monster url created:  \(url)")
            }
        })
    }

func shareSheet() {
        self.branchUniversalObject.showShareSheet(withShareText: “Install MyApp and become happy”, completion: nil)
    }
 

let branch: Branch = Branch.getInstance()
        branch.initSession(launchOptions: launchOptions, andRegisterDeepLinkHandler: {params, error in
            if error == nil {
                // params are the deep linked params associated with the link that the user clicked -> was re-directed to this app
                // params will be empty if no data found
                // ... insert custom logic here ...
                
                print("params:********** ", params["referralId"] as Any) /*If it was shared link it, referralId will be present.*/

                
                let alert = UIAlertController(title: "Alert", message: String(describing: params), preferredStyle: UIAlertControllerStyle.alert)
                alert.addAction(UIAlertAction(title: "Click", style: UIAlertActionStyle.default, handler: nil))
                self.window?.rootViewController?.present(alert, animated: true, completion: nil)
            }
        })