How to use Django and angular together?

I've a django backend and angular frontend, on my local machine to use both together, I've to run both server's using ng serve and python manage.py runserver but now I'm planning to deploy it to heroku and I've no idea how will it work, also is there any official guide for using django and angular together.
P.S. - I'm using django-rest-framework for making api calls from frontend to backend.