How to get dropdown selected value in app.py in python flask?

Question

I have a dropdown list in abc.html in python flask templates. how to get dropdown selected value in app.py, on the dropdown select event.

@app.route("/")def abc(): return render_template('abc.html')

Answer 1

You would use Javascript to invoke an AJAX request back to the API server with some data containing that information.

In other words, there's a logical separation between the displayed HTML (front-end) and the Python code (backend). The only ways to communicate between them is by websockets or HTTP traffic