Signing out essentially means ending a session. In this video, we’ll take a look at how to do this.
- [Tutor] In the last video,…we created a login page.…In this video, we'll move on,…and figure out how to let users log out of the app.…Now remember in the previous two videos,…we discussed that logging a user in…meant creating a new session.…Creating a new session meant setting a cookie…in the users browser, containing an ID,…and mapping that ID to a users credentials.…Therefore, logging out a user must mean deleting a session.…This means clearing the cookie in the users browser…and removing that mapping to the users credentials.…
Flask let's us do this in one line…with session.pop.…Let's get started.…Open up routes.py,…and create a new URL mapping for /logout.…So here we go, creating a new route.…Inside this route we need to do two things;…first use session.pop to…delete the cookie,…and then redirect to the index route,…and that is all that is needed for the log out route.…
Now one quick thing before we try all this out…and make sure that it works.…Let's go up to index.html.…Remember in line nine…that we have a placeholder for the link…
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
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.