Welcome to StridesHub Academy
In this tutorial, we'll explore how to implement authorization middleware in a Flask application to control access based on user roles and privileges. We'll cover the following:
1. Setting up the middleware structure
2. Implementing the `AuthorizationMiddleware` class
3. Integrating middleware with the Flask app
4. Dynamic menu rendering based on user privileges
1. Setting Up the Middleware Structure
First, we'll create a directory structure to organize our middleware:
1. Create a folder named `middleware` inside your `app` folder.
2. Inside the `middleware` folder, create a file named `authorization_middleware.py`.
Your folder structure should look something like this:
3. Integrating Middleware with the Flask App
In `__init__.py`, we'll integrate the `AuthorizationMiddleware` with our Flask application.
4. Dynamic Menu Rendering Based on User Privileges
In `sidebar.html`, we'll dynamically render the menu based on the user's assigned privileges. Assuming you have a `module_tasks` structure that provides the top menu and sub-menu items:
In this example, `module_tasks` is a list of dictionaries where each dictionary represents a menu item with a name and a list of sub-menu items. Adjust the structure according to your application's requirements.
Conclusion
You've now implemented authorization middleware in a Flask application that controls access based on user roles and privileges. You've also set up a dynamic menu system to reflect user-specific access rights. This setup ensures that users only see the menu items and routes they are authorized to access.
Source Code on GitHub
Click here to access or download the source code.