Full instructions available on https://www.datagraphi.com/blog/post/2019/12/19/rest-api-guide-productionizing-a-machine-learning-model-by-creating-a-rest-api-with-python-django-and-django-rest-framework
The article explains everything from setting up Django, creating REST APIs, Testing REST APIs, Serializing a Machine Learning Model, Integrating a Machine Learning Model into an API, Authentication and Throttling with a hands-on approach in a clear and concise manner.