func signIn(createdUsernameValue: String, passwordValue: String){
 // Signin the user
        let authDetails = AWSCognitoIdentityPasswordAuthenticationDetails(username: createdUsernameValue, password: passwordValue)
        self?.passwordAuthenticationCompletion?.set(result: authDetails)
        self?.user       = self?.pool?.currentUser()

        print("self.user :\(self?.user)" )

        self?.pool?.currentUser()?.getSession(userNameValue, password: passwordValue, validationData: nil).continueOnSuccessWith(executor: AWSExecutor.mainThread(), block: { (task) -> Any? in
            if(task.error == nil){
                print("user is logged in")
                getUserId()
                let myTask = task.result

            } else{
                print("There is an error in the signin process")
            }
            return nil
        })
}


func getUserId(){
    print("Get userId func called")
    self.pool?.currentUser()?.getDetails().continueWith(block: { (task) -> Any? in
        if(task.error == nil){
            print("user is logged in")
            self.response = task.result
            if let response = self.response  {
                let attributes = response.userAttributes

                guard let userId                 = attributes![0].value as? String else { return nil}
                guard let phoneNumberVerified    = attributes![1].value as? String else { return nil }
                guard let phoneNumber            = attributes![2].value as? String else { return nil }

                print("userId: \(userId)")

            }

        } else{
            print("There is an error in the signin process")
            print("Error: \(task.error)")
        }

        return nil
    }, cancellationToken: nil)
}