Adds pagination to the products api endpoint (#225)

Author: Kushdapush

backend/core/settings/base.py

@@ -53,6 +53,8 @@
         'rest_framework.filters.SearchFilter',
         'rest_framework.filters.OrderingFilter',
     ],
+    'DEFAULT_PAGINATION_CLASS' : 'rest_framework.pagination.PageNumberPagination',
+    'PAGE_SIZE': 10,
 }
 
 MIDDLEWARE = [

backend/products/views.py

@@ -1,11 +1,17 @@
 from rest_framework.generics import ListAPIView, RetrieveAPIView
 from rest_framework.filters import SearchFilter, OrderingFilter
+from rest_framework.pagination import PageNumberPagination
 from django_filters.rest_framework import DjangoFilterBackend
 from django_filters import rest_framework as filters
 
 from .models import Product
 from .serializers import ProductSerializer
 
+class ProductPagination(PageNumberPagination):
+    page_size = 15
+    page_size_query_param = 'page_size'
+    max_page_size = 100
+
 class ProductFilter(filters.FilterSet):
     # simple text filters
     name = filters.CharFilter(lookup_expr='icontains')
@@ -31,6 +37,7 @@ class ListProductView(ListAPIView):
     serializer_class = ProductSerializer
     filter_backends = [DjangoFilterBackend, SearchFilter, OrderingFilter]
     filterset_class = ProductFilter
+    pagination_class = ProductPagination
 
     search_fields = ['name', 'description', 'tags', 'seller', 'type']