syncano-register-login.swift

    let syncano = Syncano(apiKey: "API-KEY", instanceName: "INSTANCE-NAME")

    func printError(error: NSError?) {
        guard let error = error else {
            return
        }
        let userInfo = error.userInfo
        let syncanoError = userInfo[kSyncanoResponseErrorKey]
        let detail = syncanoError?["detail"]
        print("Error: \(detail)")
    }
    
    func register_logout_loginWrong_loginOk() {
        let username = String(NSDate())
        let password = String(NSDate())
        
        let register = {(block: ()->()) -> () in
            print("\n\nregister\n\n")
            MyUser.registerWithUsername(username, password: password, inSyncano: self.syncano) { error in
                let user = MyUser.currentUser()
                let profile = user.myProfile
                self.printError(error)
                print("username = \(username) ==? user.username = \(user.username)")
                print("User.ID = \(user.userId) == profile.owner == \(profile?.owner)")
                block()
            }
        }
        
        let logout = {(block: ()->()) -> () in
            print("\n\nlogout\n\n")
            MyUser.currentUser()?.logout()
            block()
        }
        
        let loginWrong = {(block: ()->()) -> () in
            print("\n\nlogin wrong\n\n")
            MyUser.loginWithUsername(username, password: "wrongPassword", toSyncano: self.syncano, completion: { error in
                let user : MyUser? = MyUser.currentUser()
                let profile = user?.myProfile
                self.printError(error)
                print("username = \(username) ==? user.username = \(user?.username)")
                print("User ID = \(user?.userId) == profile owner id == \(profile?.owner)")
                block()
            })
        }
        
        let loginOk = {(block: ()->()) -> () in
            print("\n\nlogin ok\n\n")
            MyUser.loginWithUsername(username, password: password, toSyncano: self.syncano, completion: { error in
                let user = MyUser.currentUser()
                let profile = user.myProfile
                self.printError(error)
                print("username = \(username) ==? user.username = \(user.username)")
                print("User ID = \(user.userId) == profile owner id == \(profile?.owner)")
                block()
            })
        }
        
        logout(){
            register(){
                logout(){
                    loginWrong(){
                        loginOk(){}
                    }
                }
            }
        }
    }