Start recipe app. Api serializers, views & urls

README2.md

@@ -115,3 +115,171 @@ Migrations for 'core':
   core/migrations/0002_recipe.py
     - Create model Recipe
 ```
+
+## Creación de app recipe
+
+`docker compose run --rm app sh -c "python manage.py startapp recipe"`
+
+```sh
+[+] Creating 1/0
+ ✔ Container recipes_api_django-db-1  Running  0.0s
+```
+
+- Se eliminan, directorio `migrations`, `test.py`, `admin.py` `models.py`
+- Se crean directorio `reicpes/tests/` y su respecto `__init__.py`
+
+
+- Añadir app `recipe` en [settings.py](./app/app/settings.py)
+
+   ```py
+   INSTALLED_APPS = [
+     ...
+     'recipe',
+   ]
+   ```
+
+### Tests recipe API
+
+[`recipe/tests/test_recipe_api.py`](./app/recipe/tests/test_recipe_api.py)
+
+```py
+...
+RECIPES_URL = reverse('recipe:recipe-list')
+
+def create_recipe(user, **params):
+    """Create and return a sample recipe."""
+    defaults = {
+        'title': 'Titulo reseta de ejemplo',
+        'time_minutes': 31,
+        'price': Decimal('5.25'),
+        'description': 'Descripción de ejmplo',
+        'link': 'https://defzn.kickto.net/blog',
+    }
+    defaults.update(params)
+
+    recipe = Recipe.objects.create(user=user, **defaults)
+    return recipe
+
+class PublicRecipeApiTests(TestCase):
+    """Test unauthenticated API requests."""
+
+    def setUp(self):
+        self.client = APIClient()
+
+    def test_auth_required(self):
+        """Test auth is required to call API."""
+        res = self.client.get(RECIPES_URL)
+
+        self.assertEqual(res.status_code, status.HTTP_401_UNAUTHORIZED)
+
+
+class PrivateRecipeApiTests(TestCase):
+    """Test authenticated API requests."""
+
+    def setUp(self):
+        self.client = APIClient()
+        self.user = get_user_model().objects.create_user(
+        'user@example.com',
+        'testpass123',
+        )
+        self.client.force_authenticate(self.user)
+
+    def test_retrive_recipes(self):
+        """Test retrieving a list of recipes."""
+        create_recipe(user=self.user)
+        create_recipe(user=self.user)
+
+        res = self.client.get(RECIPES_URL)
+
+        recipes = Recipe.objects.all().order_by('-id')
+        serializer = RecipeSerializer(recipes, many=True)
+
+        self.assertEqual(res.status_code, status.HTTP_200_OK)
+        self.assertEqual(res.data, serializer.data)
+
+    def test_recipe_list_limited_to_user(self):
+        """Test list of recipes is limited to authenticated user."""
+        other_user = get_user_model().objects.create_user(
+            'other@example.com',
+            'password123',
+        )
+        create_recipe(user=other_user)
+        create_recipe(user=self.user)
+
+        res = self.client.get(RECIPES_URL)
+
+        recipes = Recipe.objects.filter(user=self.user)
+        serializer = RecipeSerializer(recipes, many=True)
+        self.assertEqual(res.status_code, status.HTTP_200_OK)
+        self.assertEqual(res.data, serializer.data)
+```
+
+### Serializador para Recetas
+
+[`recipe/serializer.py`](./app/recipe/serializers.py)
+
+```py
+from rest_framework import serializers
+from core.models import Recipe
+
+class RecipeSerializer(serializers.ModelSerializer):
+    """Serializer for recipes."""
+
+    class Meta:
+        model = Recipe
+        fileds = ['id', 'title', 'time_minutes', 'price', 'link']
+        read_only_fields = ['id']
+```
+
+### Vista Recetas
+
+[`recipe/views.py`](./app/recipe/views.py)
+
+```py
+from rest_framework import viewsets
+from rest_framework.authentication import TokenAuthentication
+from rest_framework.permissions import IsAuthenticated
+from core.models import Recipe
+from recipe import serializers
+
+class RecipeViewSet(viewsets.ModelViewSet):
+    """View for manage recipe APIs."""
+    serializer_class = serializers.RecipeSerializer
+    queryset = Recipe.objects.all()
+    authentication_classes = [TokenAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        """Retrieve recipes for authenticated user."""
+        return self.queryset.filter(user=self.request.user).order_by('-id')
+```
+
+### URLs Recetas
+
+[`recipe/urls.py`](./app/recipe/urls.py)
+
+```py
+from django.urls import path, include
+from rest_framework.routers import DefaultRouter
+from recipe import views
+
+
+router = DefaultRouter()
+router.register('recipes', views.RecipeViewSet)
+app_name = 'recipe'
+
+urlpatterns = [
+    path('', include(router.urls)),
+]
+```
+
+[`app/urls.py`](./app/app/urls.py)
+
+```py
+...
+
+urlpatterns = [
+    ...
+    path('api/recipe', include('recipe.urls')),
+]
+```

app/app/settings.py

@@ -42,6 +42,7 @@ INSTALLED_APPS = [
     'rest_framework.authtoken',
     'drf_spectacular',
     'user',
+    'recipe',
 ]
 
 MIDDLEWARE = [

app/app/urls.py

@@ -26,4 +26,5 @@ urlpatterns = [
         SpectacularSwaggerView.as_view(url_name='api-schema'),
         name='api-docs'),
     path('api/user/', include('user.urls')),
+    path('api/recipe', include('recipe.urls')),
 ]

app/core/models.py

@@ -54,7 +54,7 @@ class Recipe(models.Model):
     title = models.CharField(max_length=255)
     description = models.TextField(blank=True)
     time_minutes = models.IntegerField()
-    price = models.DecimalField(max_digits=5,decimal_places=2, blank=True)
+    price = models.DecimalField(max_digits=5, decimal_places=2, blank=True)
     link = models.CharField(max_length=255, blank=True)
 
     def __str__(self):

app/core/tests/test_models.py

@@ -8,6 +8,7 @@ from django.contrib.auth import get_user_model
 
 from core import models
 
+
 class ModelTests(TestCase):
     """Test models."""
 

app/recipe/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class RecipeConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'recipe'

app/recipe/serializers.py

@@ -0,0 +1,15 @@
+"""
+Serializers for recipe APIs
+"""
+from rest_framework import serializers
+
+from core.models import Recipe
+
+
+class RecipeSerializer(serializers.ModelSerializer):
+    """Serializer for recipes."""
+
+    class Meta:
+        model = Recipe
+        fields = ['id', 'title', 'time_minutes', 'price', 'link']
+        read_only_fields = ['id']

app/recipe/tests/test_recipe_api.py

@@ -0,0 +1,87 @@
+"""
+Test for reicpe APIs.
+"""
+from decimal import Decimal
+
+from django.contrib.auth import get_user_model
+from django.test import TestCase
+from django. urls import reverse
+
+from rest_framework import status
+from rest_framework.test import APIClient
+
+from core.models import Recipe
+
+from recipe.serializers import RecipeSerializer
+
+
+RECIPES_URL = reverse('recipe:recipe-list')
+
+
+def create_recipe(user, **params):
+    """Create and return a sample recipe."""
+    defaults = {
+        'title': 'Titulo reseta de ejemplo',
+        'time_minutes': 31,
+        'price': Decimal('5.25'),
+        'description': 'Descripción de ejmplo',
+        'link': 'https://defzn.kickto.net/blog',
+    }
+    defaults.update(params)
+
+    recipe = Recipe.objects.create(user=user, **defaults)
+    return recipe
+
+
+class PublicRecipeApiTests(TestCase):
+    """Test unauthenticated API requests."""
+
+    def setUp(self):
+        self.client = APIClient()
+
+    def test_auth_required(self):
+        """Test auth is required to call API."""
+        res = self.client.get(RECIPES_URL)
+
+        self.assertEqual(res.status_code, status.HTTP_401_UNAUTHORIZED)
+
+
+class PrivateRecipeApiTests(TestCase):
+    """Test authenticated API requests."""
+
+    def setUp(self):
+        self.client = APIClient()
+        self.user = get_user_model().objects.create_user(
+            'user@example.com',
+            'testpass123',
+        )
+        self.client.force_authenticate(self.user)
+
+    def test_retrive_recipes(self):
+        """Test retrieving a list of recipes."""
+        create_recipe(user=self.user)
+        create_recipe(user=self.user)
+
+        res = self.client.get(RECIPES_URL)
+
+        recipes = Recipe.objects.all().order_by('-id')
+        serializer = RecipeSerializer(recipes, many=True)
+
+        self.assertEqual(res.status_code, status.HTTP_200_OK)
+        self.assertEqual(res.data, serializer.data)
+
+    def test_recipe_list_limited_to_user(self):
+        """Test list of recipes is limited to authenticated user."""
+        other_user = get_user_model().objects.create_user(
+            'other@example.com',
+            'password123',
+        )
+        create_recipe(user=other_user)
+        create_recipe(user=self.user)
+
+        res = self.client.get(RECIPES_URL)
+
+        recipes = Recipe.objects.filter(user=self.user)
+        serializer = RecipeSerializer(recipes, many=True)
+        self.assertEqual(res.status_code, status.HTTP_200_OK)
+        self.assertEqual(res.data, serializer.data)

app/recipe/urls.py

@@ -0,0 +1,18 @@
+"""
+URL mappings for the recipe app.
+"""
+from django.urls import path, include
+
+from rest_framework.routers import DefaultRouter
+
+from recipe import views
+
+
+router = DefaultRouter()
+router.register('recipes', views.RecipeViewSet)
+
+app_name = 'recipe'
+
+urlpatterns = [
+    path('', include(router.urls)),
+]

app/recipe/views.py

@@ -0,0 +1,21 @@
+"""
+Views for the recipe APIs.
+"""
+from rest_framework import viewsets
+from rest_framework.authentication import TokenAuthentication
+from rest_framework.permissions import IsAuthenticated
+
+from core.models import Recipe
+from recipe import serializers
+
+
+class RecipeViewSet(viewsets.ModelViewSet):
+    """View for manage recipe APIs."""
+    serializer_class = serializers.RecipeSerializer
+    queryset = Recipe.objects.all()
+    authentication_classes = [TokenAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        """Retrieve recipes for authenticated user."""
+        return self.queryset.filter(user=self.request.user).order_by('-id')