solution

cinema/permissions.py

@@ -0,0 +1,10 @@
+from rest_framework.permissions import BasePermission, SAFE_METHODS
+
+
+class IsAdminOrIfAuthenticatedReadOnly(BasePermission):
+    def has_permission(self, request, view):
+        return bool(
+            request.method in SAFE_METHODS
+            and request.user
+            and request.user.is_authenticated
+        ) or (request.user and request.user.is_staff)

cinema/views.py

@@ -1,42 +1,62 @@
 from datetime import datetime
 
-from django.db.models import F, Count
-from rest_framework import viewsets
+from django.db.models import Count, F
+from rest_framework.mixins import (
+    CreateModelMixin,
+    DestroyModelMixin,
+    ListModelMixin,
+    RetrieveModelMixin,
+    UpdateModelMixin,
+)
 from rest_framework.pagination import PageNumberPagination
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.viewsets import GenericViewSet
 
-from cinema.models import Genre, Actor, CinemaHall, Movie, MovieSession, Order
-
+from cinema.models import Actor, CinemaHall, Genre, Movie, MovieSession, Order
 from cinema.serializers import (
-    GenreSerializer,
     ActorSerializer,
     CinemaHallSerializer,
-    MovieSerializer,
-    MovieSessionSerializer,
-    MovieSessionListSerializer,
+    GenreSerializer,
     MovieDetailSerializer,
-    MovieSessionDetailSerializer,
     MovieListSerializer,
-    OrderSerializer,
+    MovieSerializer,
+    MovieSessionDetailSerializer,
+    MovieSessionListSerializer,
+    MovieSessionSerializer,
     OrderListSerializer,
+    OrderSerializer,
 )
 
 
-class GenreViewSet(viewsets.ModelViewSet):
+class GenreViewSet(
+    ListModelMixin,
+    CreateModelMixin,
+    GenericViewSet,
+):
     queryset = Genre.objects.all()
     serializer_class = GenreSerializer
 
 
-class ActorViewSet(viewsets.ModelViewSet):
+class ActorViewSet(
+    CreateModelMixin,
+    ListModelMixin,
+    GenericViewSet,
+):
     queryset = Actor.objects.all()
     serializer_class = ActorSerializer
 
 
-class CinemaHallViewSet(viewsets.ModelViewSet):
+class CinemaHallViewSet(ListModelMixin, CreateModelMixin, GenericViewSet):
     queryset = CinemaHall.objects.all()
     serializer_class = CinemaHallSerializer
 
 
-class MovieViewSet(viewsets.ModelViewSet):
+class MovieViewSet(
+    ListModelMixin,
+    CreateModelMixin,
+    RetrieveModelMixin,
+    GenericViewSet,
+):
     queryset = Movie.objects.prefetch_related("genres", "actors")
     serializer_class = MovieSerializer
 
@@ -76,7 +96,14 @@ def get_serializer_class(self):
         return MovieSerializer
 
 
-class MovieSessionViewSet(viewsets.ModelViewSet):
+class MovieSessionViewSet(
+    ListModelMixin,
+    CreateModelMixin,
+    RetrieveModelMixin,
+    UpdateModelMixin,
+    DestroyModelMixin,
+    GenericViewSet,
+):
     queryset = (
         MovieSession.objects.all()
         .select_related("movie", "cinema_hall")
@@ -118,13 +145,18 @@ class OrderPagination(PageNumberPagination):
     max_page_size = 100
 
 
-class OrderViewSet(viewsets.ModelViewSet):
+class OrderViewSet(ListModelMixin, CreateModelMixin, GenericViewSet):
     queryset = Order.objects.prefetch_related(
         "tickets__movie_session__movie", "tickets__movie_session__cinema_hall"
     )
     serializer_class = OrderSerializer
     pagination_class = OrderPagination
 
+    def get_permissions(self):
+        if self.action == "create":
+            return (IsAuthenticated(),)
+        return super().get_permissions()
+
     def get_queryset(self):
         return Order.objects.filter(user=self.request.user)
 

cinema_service/settings.py

@@ -15,7 +15,6 @@
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/
 
@@ -80,7 +79,6 @@
 
 WSGI_APPLICATION = "cinema_service.wsgi.application"
 
-
 # Database
 # https://docs.djangoproject.com/en/4.0/ref/settings/#databases
 
@@ -91,7 +89,6 @@
     }
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/4.0/ref/settings/#auth-password-validators
 
@@ -121,12 +118,11 @@
 
 LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = "UTC"
+TIME_ZONE = "Europe/Kiev"
 
 USE_I18N = True
 
-USE_TZ = False
-
+USE_TZ = True
 
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/4.0/howto/static-files/
@@ -137,3 +133,12 @@
 # https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+REST_FRAMEWORK = {
+    "DEFAULT_AUTHENTICATION_CLASSES": [
+        "rest_framework.authentication.TokenAuthentication",
+    ],
+    "DEFAULT_PERMISSION_CLASSES": [
+        "cinema.permissions.IsAdminOrIfAuthenticatedReadOnly",
+    ],
+}

cinema_service/urls.py

@@ -1,8 +1,9 @@
 from django.contrib import admin
-from django.urls import path, include
+from django.urls import include, path
 
 urlpatterns = [
     path("admin/", admin.site.urls),
     path("api/cinema/", include("cinema.urls", namespace="cinema")),
+    path("api/user/", include("user.urls", namespace="user")),
     path("__debug__/", include("debug_toolbar.urls")),
 ]

user/serializers.py

@@ -1 +1,33 @@
-# write your code here
+from django.contrib.auth import get_user_model
+from rest_framework import serializers
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = get_user_model()
+        fields = (
+            "id",
+            "username",
+            "email",
+            "password",
+            "is_staff",
+        )
+        read_only_fields = ("id", "is_staff")
+        extra_kwargs = {
+            "password": {
+                "write_only": True,
+                "min_length": 4,
+            }
+        }
+
+    def create(self, validated_data):
+        return get_user_model().objects.create_user(**validated_data)
+
+    def update(self, instance, validated_data):
+        password = validated_data.pop("password", None)
+        user = super().update(instance, validated_data)
+
+        if password:
+            user.set_password(password)
+            user.save()
+        return user

user/urls.py

@@ -1 +1,11 @@
-# write your code here
+from django.urls import path
+
+from user.views import CreateUserView, LoginUserView, ManageUserView
+
+app_name = "user"
+
+urlpatterns = [
+    path("register/", CreateUserView.as_view(), name="create"),
+    path("login/", LoginUserView.as_view(), name="login"),
+    path("me/", ManageUserView.as_view(), name="manage"),
+]

user/views.py

@@ -1 +1,23 @@
-# write your code here
+from rest_framework import generics
+from rest_framework.authtoken.views import ObtainAuthToken
+from rest_framework.permissions import AllowAny, IsAuthenticated
+from rest_framework.settings import api_settings
+
+from user.serializers import UserSerializer
+
+
+class CreateUserView(generics.CreateAPIView):
+    serializer_class = UserSerializer
+    permission_classes = (AllowAny,)
+
+
+class LoginUserView(ObtainAuthToken):
+    renderer_classes = api_settings.DEFAULT_RENDERER_CLASSES
+
+
+class ManageUserView(generics.RetrieveUpdateAPIView):
+    serializer_class = UserSerializer
+    permission_classes = (IsAuthenticated,)
+
+    def get_object(self):
+        return self.request.user