---
title: "User Login"
url: https://docs.catalyst.zoho.com/en/sdk/flutter/v2/cloud-scale/authentication/user-login/
description: "You can display the login page to the end user of your Catalyst Flutter app."
last_updated: 2025-11-19T15:07:41Z
service: Cloud Scale
type: general
related_links:
  - name: "Authentication"
    url: /en/cloud-scale/help/authentication/introduction
  - name: "Users"
    url: /en/cloud-scale/help/authentication/user-management/users/introduction/
  - name: "Authentication - API"
    url: /en/api/code-reference/cloud-scale/authentication/add-new-user/#AddNewUser
---

# User Login

You can display the login page to the [end user](https://docs.catalyst.zoho.com/en/cloud-scale/help/authentication/user-management/users/introduction/) of your Catalyst Flutter app using the `login()` method. This will be displayed when the user is logged out of the app. If the login is successful, the user will be able to access the app.

A sample code snippet is shown below:

```bash
await ZCatalystApp.getInstance().login()
```