How to make content rendered dynamically.

[calexandre-me]

Hi everyone. I am stuck with something in Express.
The thing is. I have a HTML file rendered with (hbs) engine.
In this file I have two divs:

• One is a form for log-in and
• the other is a users section with options, like uploading a profile.

I want one of those divs to appear on the page. If the user has already logged in, only the user section should appear, Otherwise if the user hasn't yet the log-in form should appear only.

I tried to use handlebars Helpers, but it does not give a proper result after page refresh.
What approch I should use to make it work properly. Is there a package that can do the job.

Please, help me out,
Kindly.

[ishan-18]

To conditionally show different content in your HTML file based on whether the user is logged in or not, you can follow these steps:

1. First, you need to implement user authentication in your Express application. This will involve creating a login system where users can log in and their login status can be tracked.

2. Once you have the user authentication set up, you can pass a variable to your HTML file (using Handlebars or any other template engine) indicating whether the user is logged in or not. For example, you can pass a boolean variable like isLoggedIn with the value true if the user is logged in and false otherwise.

3. In your HTML file, you can use Handlebars conditional statements to show/hide the divs based on the isLoggedIn variable. For example:

{{#if isLoggedIn}}
  <!-- Show user section with options -->
  <div>Users section with options</div>
{{else}}
  <!-- Show login form -->
  <div>Login form</div>
{{/if}}

4. Make sure to update the isLoggedIn variable when the user logs in or logs out, so the correct content will be displayed upon page refresh.

As for packages that can help with user authentication in Express, you can consider using popular ones like Passport.js or express-session. These packages can simplify the process of handling user authentication and managing session data.