You have to define these variables in settings.py file of your Django project.
DJANGO_INFOPUSH_FCM_SERVER_KEY Key of your Google FCM project (str). Get it by using this docs.
DJANGO_INFOPUSH_FCM_SENDER_ID ID of your Google FCM project (str). Get it by using this docs.
DJANGO_INFOPUSH_DEFAULT_ICON_URL Relative path (no domain) to notification icon, which is used by default if you haven't uploaded custom icon for a push task (str). JPG, PNG, GIF (first frame used from gifs), square shape. Default value is "/static/push/img/icon.png"
DJANGO_INFOPUSH_MIN_ICON_W The minimum width in px of the push icon (int, default 192).
DJANGO_INFOPUSH_MIN_ICON_H The minimum height in px of the push icon (int, default 192).
DJANGO_INFOPUSH_ICON_CUSTOM_MAX_FILESIZE The maximum filesize of a custom notification icon (you can attach your own to each notification). In kb (int, default 25).
DJANGO_INFOPUSH_MIN_BIG_IMAGE_W The minimum width in px of the big picture for push in Chrome. (int, default is 1023). Read more here.
DJANGO_INFOPUSH_MIN_BIG_IMAGE_H The minimum height in px of the big picture for push in Chrome. (int, default is 682).
DJANGO_INFOPUSH_BIG_IMAGE_MAX_FILESIZE Maximum filesize of a large notification picture (you can attach your own to each notification). In kilobytes (int, default 100).
DJANGO_INFOPUSH_APP_ICON_URLS Web push requires manifest.json, in which we also configure the web application, so that in Chrome on Android you can save the "shortcut" to the website on your desktop. This array of paths relative(!) to django static-dir will be the icons for the "shortcut" (list of strings). Only PNG, square. Several identical icons in different sizes. 192*192, 512*512, Read more here.. Default is ["push/img/app_icon.png"]. It is better to change on your own, this is very common.
DJANGO_INFOPUSH_APP_BACKGROUND_COLOR When launching an "application" site from the desktop, splash screen can be used. Set the background of this screen, for example #CCCCCC (str, default is None, not used). Read more here.
DJANGO_INFOPUSH_APP_THEME_COLOR Color code to "brand" the browser (mobile Chrome) under the site. For example #CCCCCC (str, default is None, not used). Read more here.
DJANGO_INFOPUSH_ERROR_THRESHOLD The number of error points, after which we disable push-subscription (int, by default 30).
DJANGO_INFOPUSH_USE_CSRF Allows you to turn off CSRF checking on push views. Sometimes it can be helpful (bool, default is True - CSRF works).