In our app, users can still access the homepage without logging in. In this video, we’ll see how to avoid this.
- [Instructor] In this video, let's see how we can address…the first flaw in the Authentication System…and control access to the homepage.…We'll review how the session object…can be used to check whether a user is logged in.…And then we'll use that session object…to protect the home page.…Remember when I'm logged out,…I can still access the home page.…Instead what we want is for the user…to be redirected to the login page.…In other words if a user is not logged in,…he should be redirected to the login page.…So how do we determine if a user is logged in?…Let's look at the signup function in routes.py.…
To log in a user, we use this line.…Session email equals newuser.email.…In other words, to log in a user, we created a new session.…Similar to a Python dictionary,…we associated the key email with the user's email…in order create this new session.…Therefore we can use this session object…to determine if a user is logged in.…If a user is logged in that key email…should exist in this object.…On the other hand, if a user is not logged in,…
The need for talented developers is greater than ever before. A basic grounding in a framework as simple, powerful, and easy-to-learn as Flask—a Python micro framework—can help launch your programming career. Get a basic grounding in the fundamental concepts of web development, as well as the hands-on experience required to successfully build web apps with Flask, in this course with Packt trainer Lalith Polepeddi.
It starts with turning your computer into a modern development machine. Then learn everything you need to know about Flask: models, views, controllers, web templates, forms, validation, and API interactions. Lalith shows how to apply these concepts and develop a powerful database-backed Flask app, including a full authentication system. Finally, Lalith shows how to extend the app's functionality by integrating it with third-party APIs. When you finish this course, you will be fully equipped to build your very own custom web apps with Flash.
- Setting up your development environment
- Creating a homepage
- Building templates
- Routing with Flask
- Deploying to Heroku
- Storing data
- Creating and rendering forms
- Validating form data
- Creating a user authentication system for login and logout
- Implementing location-based app features
Skill Level Beginner
1. Setting Up the Environment
2. Getting Started
3. Storing Data
4. Signing Up
5. Logging In and Logging Out
6. Authorization and User Roles
7. Bookmarking Places
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