https://medium.com/@aronbalog/1-ios-reinventing-view-controller-navigation-c2745b60bb6c Destination

Destination_PersonProfile.swift

import CoreNavigation

struct PersonProfile: Destination {
    typealias ViewControllerType = PersonProfileViewController
    
    let personId: String
    
    init(_ personId: String) {
        self.personId = personId
    }
    
    var parameters: [String : Any]? {
        return [
            "personId": personId
        ]
    }
    
    static func resolve(context: Context<PersonProfile>) {
        guard let personId = context.parameters?["personId"] as? String else {
            // cancel navigation with some error
            context.cancel(error: NavigationError.Destination.notFound)
        }
        
        // fetch person
        fetchPerson(id: personId, completion: { (person: Person) in
            // continue to navigation
            context.complete(data: person)
        }, failure: { (error: Error) in
            // cancel navigation with some error
            context.cancel(error: error)
        })
    }
}