From the course: Building RESTful Web APIs with Django

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Lists, dicts, and JSON objects

Lists, dicts, and JSON objects

From the course: Building RESTful Web APIs with Django

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Lists, dicts, and JSON objects

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- [Instructor] In order to gather daily, weekly, or monthly product and shopping cart data for our sales report, we need to create a new serializer that uses composite fields. We start by creating the new serializer. It is not a model serializer. It's just a plain serializer, because it's not tied to any specific model. So, it only contains one field. It's a DictField, which has the child parameter set to a ListField, which has its own child parameter set to an IntegerField. So, this is a composite of a composite field. The dictionary keys will be the date as a string. For each value in the dictionary, we're expecting a list of numbers which is the quantity from each shopping cart that the product appeared in. Next, we create a generic API view. We import GenericAPIView. We import the rest_framework_response object. And then, we also import our ProductStatSerializer. Now we can create our stat API view, ProductStats The lookup field is the product id. The serializer class is the…

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