Flask with AJAX
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Flask with AJAX: Building Dynamic Web Applications
Flask is a lightweight Python framework that makes it easy to build web applications. While Flask handles server-side logic, modern apps often need dynamic page updates without refreshing the entire browser. This is where AJAX (Asynchronous JavaScript and XML) comes in. AJAX allows the client-side to send and receive data from the server asynchronously, creating smoother and faster user experiences.
In a Flask + AJAX workflow, Flask defines routes that return JSON responses instead of HTML. On the front end, JavaScript (often with Fetch API or jQuery) sends asynchronous requests to these routes. For example, a user submitting a form can trigger an AJAX call to Flask, which processes the data and returns a JSON result. The page then updates dynamically without a full reload.
A simple use case is a search bar with real-time suggestions. As the user types, AJAX sends the query to a Flask route, retrieves matches from the database, and updates the results instantly.
The benefits include reduced server load, better responsiveness, and improved UX. Flask’s simplicity and flexibility pair perfectly with AJAX, making it easy to build interactive dashboards, chat apps, or data-driven websites.
By combining Flask for backend logic and AJAX for client-side interactivity, developers can create efficient, modern, and seamless web applications.
Read More
Introduction to Flask for Web Development
Handling Forms and Validation in HTML
Vue.js Basics for Python Backends
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