Free online courseFlask

Course Description

Transform your Python knowledge into practical backend development by building a complete web application with Flask, one of the most popular microframeworks for creating fast, maintainable APIs and websites. This free online course guides you from the first project setup to a polished, deployable app, focusing on the workflow and decisions developers face in real projects. Along the way, you will learn how routing works and why decorators are central to clean, readable endpoints that scale as your application grows.

You will create dynamic pages with templates and build consistent layouts efficiently using template inheritance, an approach that reduces repetition and makes design changes easier to manage. As the project evolves, you will handle user input with robust form processing and validation, then persist data using Flask-SQLAlchemy, gaining the benefits of an ORM for clearer models and safer, more flexible database interactions. You will also adopt a healthier project organization by structuring the app as a package, preparing you for larger codebases, reuse, and better testing patterns.

Modern web apps require accounts, security, and user experiences that feel complete. You will implement authentication and protected routes, learn why password hashing is essential before saving credentials, and add user profile features such as account updates and profile images. You will also build core content functionality with create, update, and delete operations, and improve usability with pagination so large datasets stay fast and easy to browse. When users forget passwords, you will set up secure reset flows using token generation techniques that help keep account recovery safe.

To get your application production-ready, you will work with blueprints, configuration patterns, and an application factory approach that supports cleaner separation of features across a growing project. You will create custom error pages to improve reliability and user trust, then move beyond local development by deploying to a Linux server with a recommended web server setup and understanding why a virtual private server can be a strong choice for control and performance. Finally, you will connect a custom domain and secure your app with HTTPS using a free SSL/TLS certificate from a trusted service, ensuring your Flask project meets modern expectations for security and professionalism.