How to add a process bar when you waiting for a response from the server
You can use nprogress, it's a library used for progress bars. Use this inside the interceptor where you can config it for displaying only when request is in progress until finished.
could someone help me with one problem? I want to add a process bar when you waiting for a response from the server (Django 3.x).
Step to reproduce:

On the page 'A' we have the form.
Enter data to form.
Submit POST request by clicking to button on the page 'A'.
Waiting for getting the result on the page 'A'.
Get the result on the page 'A'.

So, I want to add process bar after 4th and before 5th points on the page 'A'. When you will get the result on the page 'A' it should disappear.
Python 3.7
Django 3.x