11/18/2023 0 Comments Flask blueprint example![]() The definition of Blueprints doesn’t exactly illustrate how it works, let’s take an example with a web application. Introduction to Blueprintsīlueprints aid in organizing components of our web applications into distinct components. To avoid the cons of building large-scale applications with the basic structure of flask, we need to understand Blueprints and Application Factory. It would prove inefficient to write the code for each feature in the app folder or to store all the HTML files for each feature in the template directory without appropriate structure, this will result in conflict and it also makes debugging difficult. While this basic application structure suffices for building small-scale applications, what happens if we need to start implementing additional features such as Authentication, Email, Errors, Database, User Profile, and many more as the application demands. The templates folder consists of the HTML files to be rendered to the user.Īs an intermediate developer, running this application will result in a “Hello World” statement printed out on your web browser. The app.py file consists of the app route and the run statement, while the static folder stores the CSS, JS, and image files we would require in building our web application. In the cloned repository, we have the app.py file, the static folder, and the templates folder. To examine the basic structure of a Flask web application, let’s clone this repository here Examining a Basic Flask Application Structureīefore we delve into the structuring of a large-scale Flask application, let’s first understand how a basic Flask application is structured. However, if you have no prior knowledge of setting up a Flask web application, read my article on the Flask framework here. To keep the introductory section of this article concise, I won’t cover how to set up a Flask web application. However, if you have a different preference in terms of IDE, then you should consider installing a virtual environment and installing Flask. In this tutorial, the use of P圜harm Integrated Development Environment is recommended, because it has all the features required to set up a basic application.
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