add category url & view

backend/categories/serializers.py

@@ -0,0 +1,8 @@
+from rest_framework import serializers
+from .models import Category
+
+class CategorySerializer(serializers.ModelSerializer):
+
+    class Meta:
+        model = Category
+        fields = "__all__"

backend/categories/urls.py

@@ -2,5 +2,23 @@
 from . import views
 
 urlpatterns = [
-    path("", views.categories),
+    path(
+        "",
+        views.CategoryViewSet.as_view(
+            {
+                "get": "list",
+                "post": "create",
+            }
+        ),
+    ),
+    path(
+        "<int:pk>",
+        views.CategoryViewSet.as_view(
+            {
+                "get": "retrieve",
+                "put": "partial_update",
+                "delete": "destroy",
+            }
+        ),
+    ),
 ]

backend/categories/views.py

@@ -1,12 +1,8 @@
-from rest_framework.decorators import api_view
-from rest_framework.response import Response
+from rest_framework.viewsets import ModelViewSet
 from .models import Category
+from .serializers import CategorySerializer
 
-@api_view()
-def categories(request):
-    return Response(
-        {
-            "ok": True,
-            "categories": Category.objects.all()
-        }
-    )
+class CategoryViewSet(ModelViewSet):
+
+    serializer_class = CategorySerializer
+    queryset = Category.objects.all()