Flask-Dropzone packages Dropzone.js into an extension to add file upload support for Flask. It can create links to serve Dropzone from a CDN and works with no JavaScript code in your application.
Step 1: Initialize the extension:
from flask_dropzone import Dropzone
dropzone = Dropzone(app)Step 2: In your <head> section of your base template add the following code:
{{ dropzone.load() }}
You can assign the version of Dropzone.js through version argument, the default value is 5.1.1. Step 3: Creating a Drop Zone with create():
{{ dropzone.create(action_view='upload_view') }}
Also to edit the action view to yours.
Style it according to your preferences through style() method:
{{ dropzone.style('border: 2px dashed #0087F7; margin: 10%; min-height: 400px;') }}
Go to Github page , which you can check for more details.