Modern web ve mobil uygulamalar\u0131n kalbinde, farkl\u0131 platformlar aras\u0131 veri al\u0131\u015fveri\u015fini sa\u011flayan g\u00fc\u00e7l\u00fc ve esnek API’lar yatar. Peki, her ge\u00e7en g\u00fcn karma\u015f\u0131kla\u015fan bu ekosistemde API’lar\u0131n\u0131z\u0131n performans, g\u00fcvenlik ve \u00f6l\u00e7eklenebilirlik gibi temel beklentileri kar\u015f\u0131lad\u0131\u011f\u0131ndan emin misiniz? Django, kendi ba\u015f\u0131na harika bir web \u00e7at\u0131s\u0131 olsa da, bu t\u00fcr ileri d\u00fczey API ihtiya\u00e7lar\u0131 i\u00e7in genellikle Django REST Framework (DRF) ile birlikte kullan\u0131l\u0131r.<\/p>\n
G\u00fcn\u00fcm\u00fcz\u00fcn rekabet\u00e7i dijital ortam\u0131nda, uygulamalar\u0131n\u0131z\u0131n h\u0131zl\u0131 yan\u0131t vermesi, verileri g\u00fcvenli bir \u015fekilde i\u015flemesi ve milyonlarca kullan\u0131c\u0131ya hizmet verebilecek kapasitede olmas\u0131 hayati \u00f6nem ta\u015f\u0131r. Bu makalede, Django geli\u015ftirme yolculu\u011funuzun 18. g\u00fcn\u00fcnde, bu zorluklar\u0131n \u00fcstesinden gelmek i\u00e7in ileri seviye API tasar\u0131m prensiplerini, optimizasyon tekniklerini ve ger\u00e7ek d\u00fcnya senaryolar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ba\u015flang\u0131\u00e7 seviyesindeki bir geli\u015ftiriciden deneyimli bir uzmana kadar herkesin faydalanabilece\u011fi pratik bilgilerle donat\u0131lacaks\u0131n\u0131z. Amac\u0131m\u0131z, sadece API olu\u015fturmay\u0131 de\u011fil, ayn\u0131 zamanda onlar\u0131 verimli, g\u00fcvenli ve s\u00fcrd\u00fcr\u00fclebilir k\u0131lmay\u0131 \u00f6\u011frenmek.<\/p>\n
Web geli\u015ftirme projelerinizde kar\u015f\u0131la\u015ft\u0131\u011f\u0131n\u0131z bu karma\u015f\u0131k sorunlara odaklanarak, Django’nun ve DRF’nin sa\u011flad\u0131\u011f\u0131 \u00e7\u00f6z\u00fcmleri derinlemesine inceleyece\u011fiz. RESTful mimarinin temel prensiplerinden ba\u015flayarak, kimlik do\u011frulama ve yetkilendirme mekanizmalar\u0131na, ard\u0131ndan performans art\u0131r\u0131c\u0131 \u00f6nbellekleme stratejilerine ve mikroservis entegrasyonlar\u0131na kadar geni\u015f bir yelpazede bilgi edineceksiniz. Bu bilgiler, sadece “Nas\u0131l yap\u0131l\u0131r?” sorusuna yan\u0131t vermekle kalmayacak, ayn\u0131 zamanda “Neden b\u00f6yle yap\u0131lmal\u0131?” sorusunun ard\u0131ndaki mant\u0131\u011f\u0131 da a\u00e7\u0131kl\u0131\u011fa kavu\u015fturacakt\u0131r. Haydi, Django ile API geli\u015ftirme becerilerinizi bir \u00fcst seviyeye ta\u015f\u0131yal\u0131m!<\/p>\n
Django REST Framework (DRF), Django \u00fczerinde RESTful API’ler olu\u015fturmak i\u00e7in g\u00fc\u00e7l\u00fc ve esnek bir ara\u00e7 setidir. E\u011fer daha \u00f6nce Django ile bir \u015feyler geli\u015ftirdiyseniz, muhtemelen modeller, g\u00f6r\u00fcn\u00fcmler (views) ve URL’ler gibi temel kavramlara a\u015finas\u0131n\u0131zd\u0131r. DRF, bu temel Django yap\u0131s\u0131n\u0131n \u00fczerine in\u015fa edilerek API geli\u015ftirmeyi inan\u0131lmaz derecede kolayla\u015ft\u0131r\u0131r ve h\u0131zland\u0131r\u0131r. Temel amac\u0131, karma\u015f\u0131k veri yap\u0131lar\u0131n\u0131 JSON veya XML gibi standart formatlara d\u00f6n\u00fc\u015ft\u00fcrmek, HTTP isteklerini do\u011fru bir \u015fekilde i\u015flemek ve tutarl\u0131 bir API aray\u00fcz\u00fc sunmakt\u0131r.<\/p>\n
DRF’nin kalbinde birka\u00e7 anahtar bile\u015fen bulunur:<\/p>\n
APIView<\/code>, GenericAPIView<\/code> ve ViewSet<\/code> gibi s\u0131n\u0131flar sunar. Bu g\u00f6r\u00fcn\u00fcmler, kimlik do\u011frulama, izinler ve veri serile\u015ftirme gibi s\u00fcre\u00e7leri otomatikle\u015ftirerek kod tekrar\u0131n\u0131 azalt\u0131r.<\/li>\n- Routers (Y\u00f6nlendiriciler):<\/strong>
ViewSet<\/code>‘ler ile birlikte kullan\u0131larak, URL yap\u0131lar\u0131n\u0131 manuel olarak tan\u0131mlama ihtiyac\u0131n\u0131 ortadan kald\u0131r\u0131r. Tek bir sat\u0131r kodla birden fazla CRUD (Create, Read, Update, Delete) i\u015flemi i\u00e7in otomatik olarak URL’ler olu\u015fturabilirler.<\/li>\n<\/ul>\nDRF’nin sundu\u011fu bu bile\u015fenler, geli\u015ftiricilerin g\u00fcvenlik, performans ve bak\u0131m\u0131 kolay API’lar olu\u015fturmas\u0131na olanak tan\u0131r. \u00d6rne\u011fin, bir \u00fcr\u00fcn y\u00f6netim sisteminde, \u00fcr\u00fcnlerin listelenmesi, yeni \u00fcr\u00fcn eklenmesi, mevcut \u00fcr\u00fcn\u00fcn g\u00fcncellenmesi veya silinmesi gibi i\u015flemleri geleneksel Django y\u00f6ntemleriyle yapmak daha fazla kod yazmay\u0131 gerektirirken, DRF ile bu s\u00fcre\u00e7ler \u00f6nemli \u00f6l\u00e7\u00fcde basitle\u015fir. Veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flamak ve hata y\u00f6netimini standartla\u015ft\u0131rmak da DRF’nin \u00f6nemli avantajlar\u0131ndand\u0131r.<\/p>\n
\n Uzman \u0130pucu: DRF’nin sundu\u011fu Browsable API<\/code> aray\u00fcz\u00fc, geli\u015ftirdi\u011finiz API’lar\u0131 test etmek ve dok\u00fcmante etmek i\u00e7in harika bir ba\u015flang\u0131\u00e7 noktas\u0131d\u0131r. Taray\u0131c\u0131n\u0131z \u00fczerinden API’nizi g\u00f6rsel olarak ke\u015ffetmenizi sa\u011flar!\n <\/div>\nBu temel konseptler, Django ile ileri seviye API’lar olu\u015ftururken sa\u011flam bir zemin olu\u015fturur. \u015eimdi bu bilgileri prati\u011fe d\u00f6kme zaman\u0131!<\/p>\n
Ad\u0131m Ad\u0131m \u0130leri Seviye API Olu\u015fturma: ViewSetler ve Routerlar Nas\u0131l Kullan\u0131l\u0131r?<\/h2>\n
Django REST Framework’\u00fcn temel bile\u015fenlerinden ViewSet<\/code>‘ler ve Router<\/code>‘lar, API geli\u015ftirmede bize zaman kazand\u0131ran ve kodu daha d\u00fczenli hale getiren g\u00fc\u00e7l\u00fc ara\u00e7lard\u0131r. Genellikle bir model i\u00e7in t\u00fcm CRUD (Create, Retrieve, Update, Delete) operasyonlar\u0131n\u0131 tek bir s\u0131n\u0131f alt\u0131nda toplamak istedi\u011fimizde ViewSet<\/code>‘leri tercih ederiz. Bu yakla\u015f\u0131m, kod tekrar\u0131n\u0131 azalt\u0131rken API endpoint’lerimizi tutarl\u0131 bir \u015fekilde y\u00f6netmemizi sa\u011flar.<\/p>\n\u015eimdi bir e-ticaret uygulamas\u0131ndaki \u00fcr\u00fcnleri y\u00f6neten bir API olu\u015fturdu\u011fumuzu varsayal\u0131m. \u0130lk olarak, bir Product<\/code> modeline ihtiyac\u0131m\u0131z olacak. Ard\u0131ndan bu modeli serile\u015ftirecek bir ProductSerializer<\/code> ve son olarak bu serile\u015ftiriciyi ve modeli kullanarak CRUD i\u015flemlerini y\u00f6netecek bir ProductViewSet<\/code> olu\u015fturaca\u011f\u0131z.<\/p>\n\u0130lk ad\u0131m olarak, Django projenizde bir uygulama (\u00f6rne\u011fin urunler<\/code>) olu\u015ftural\u0131m ve models.py<\/code> dosyam\u0131za Product<\/code> modelini ekleyelim:<\/p>\n\n# urunler\/models.py\nfrom django.db import models\n\nclass Product(models.Model):\n name = models.CharField(max_length=255)\n description = models.TextField()\n price = models.DecimalField(max_digits=10, decimal_places=2)\n stock = models.IntegerField(default=0)\n created_at = models.DateTimeField(auto_now_add=True)\n updated_at = models.DateTimeField(auto_now=True)\n\n def __str__(self):\n return self.name\n\n class Meta:\n ordering = ['name']\n <\/pre>\n<\/code><\/p>\n
Modelimizi olu\u015fturduktan sonra, onu DRF ile kullanabilmek i\u00e7in bir serile\u015ftiriciye ihtiyac\u0131m\u0131z var. urunler\/serializers.py<\/code> dosyas\u0131n\u0131 olu\u015ftural\u0131m:<\/p>\n\n# urunler\/serializers.py\nfrom rest_framework import serializers\nfrom .models import Product\n\nclass ProductSerializer(serializers.ModelSerializer):\n class Meta:\n model = Product\n fields = '__all__' # T\u00fcm alanlar\u0131 dahil et\n <\/pre>\n<\/code><\/p>\n
\u015eimdi s\u0131ra geldi ViewSet<\/code>'i tan\u0131mlamaya. urunler\/views.py<\/code> dosyam\u0131za a\u015fa\u011f\u0131daki kodu ekleyelim:<\/p>\n\n# urunler\/views.py\nfrom rest_framework import viewsets\nfrom .models import Product\nfrom .serializers import ProductSerializer\n\nclass ProductViewSet(viewsets.ModelViewSet):\n queryset = Product.objects.all()\n serializer_class = ProductSerializer\n <\/pre>\n<\/code><\/p>\n
ModelViewSet<\/code>, otomatik olarak list<\/code>, retrieve<\/code>, create<\/code>, update<\/code>, partial_update<\/code> ve destroy<\/code> metotlar\u0131n\u0131 sa\u011flar. Bu sayede her bir i\u015flem i\u00e7in ayr\u0131 ayr\u0131 g\u00f6r\u00fcn\u00fcm (view) yazmak zorunda kalmay\u0131z.<\/p>\nSon olarak, bu ViewSet<\/code>'i URL'lere ba\u011flamak i\u00e7in Router<\/code> kullanaca\u011f\u0131z. Projenizin ana urls.py<\/code> (veya uygulaman\u0131z\u0131n urls.py<\/code>) dosyas\u0131na \u015funlar\u0131 ekleyin:<\/p>\n\n# proje_adi\/urls.py (veya urunler\/urls.py)\nfrom django.contrib import admin\nfrom django.urls import path, include\nfrom rest_framework.routers import DefaultRouter\nfrom urunler.views import ProductViewSet # urunler uygulaman\u0131z\u0131n ad\u0131\n\nrouter = DefaultRouter()\nrouter.register(r'products', ProductViewSet, basename='product')\n\nurlpatterns = [\n path('admin\/', admin.site.urls),\n path('api\/', include(router.urls)), # Router taraf\u0131ndan olu\u015fturulan URL'leri dahil et\n]\n <\/pre>\n<\/code><\/p>\n
Bu kurulumla birlikte, a\u015fa\u011f\u0131daki API endpoint'leriniz otomatik olarak olu\u015fur:<\/p>\n
\nGET \/api\/products\/<\/code>: T\u00fcm \u00fcr\u00fcnleri listeler.<\/li>\nPOST \/api\/products\/<\/code>: Yeni bir \u00fcr\u00fcn olu\u015fturur.<\/li>\nGET \/api\/products\/{id}\/<\/code>: Belirli bir \u00fcr\u00fcn\u00fc getirir.<\/li>\nPUT \/api\/products\/{id}\/<\/code>: Belirli bir \u00fcr\u00fcn\u00fc tamamen g\u00fcnceller.<\/li>\nPATCH \/api\/products\/{id}\/<\/code>: Belirli bir \u00fcr\u00fcn\u00fcn k\u0131smen g\u00fcnceller.<\/li>\nDELETE \/api\/products\/{id}\/<\/code>: Belirli bir \u00fcr\u00fcn\u00fc siler.<\/li>\n<\/ul>\nB\u00f6ylece, sadece birka\u00e7 sat\u0131r kodla tam fonksiyonlu bir REST API setini kolayca hayata ge\u00e7irmi\u015f olduk. Bu yakla\u015f\u0131m, hem geli\u015ftirme h\u0131z\u0131n\u0131z\u0131 art\u0131r\u0131r hem de API kodunuzun bak\u0131m\u0131n\u0131 kolayla\u015ft\u0131r\u0131r. Bir sonraki ad\u0131mda, bu API'lar\u0131 nas\u0131l g\u00fcvenli hale getirece\u011fimizi inceleyece\u011fiz.<\/p>\n
API G\u00fcvenli\u011fi ve \u0130zin Y\u00f6netimi: Hangi Y\u00f6ntemler Kullan\u0131lmal\u0131?<\/h2>\n
Bir API olu\u015ftururken en kritik konulardan biri g\u00fcvenliktir. Yetkisiz eri\u015fimi engellemek, verileri korumak ve sadece belirli kullan\u0131c\u0131lar\u0131n belirli i\u015flemleri yapmas\u0131na izin vermek, her modern API'nin temel gereksinimidir. Django REST Framework, bu ihtiya\u00e7lar\u0131 kar\u015f\u0131lamak i\u00e7in g\u00fc\u00e7l\u00fc kimlik do\u011frulama (Authentication) ve izin (Permission) mekanizmalar\u0131 sunar.<\/p>\n
Kimlik Do\u011frulama (Authentication):<\/strong> Bu mekanizma, bir kullan\u0131c\u0131n\u0131n kimli\u011fini do\u011frulamak i\u00e7in kullan\u0131l\u0131r. Yani, \"Bu ki\u015fi s\u00f6yledi\u011fi ki\u015fi mi?\" sorusuna yan\u0131t arar. DRF, farkl\u0131 kimlik do\u011frulama y\u00f6ntemlerini kolayca entegre etmenizi sa\u011flar:<\/p>\n\n- SessionAuthentication:<\/strong> Django'nun varsay\u0131lan oturum tabanl\u0131 kimlik do\u011frulamas\u0131n\u0131 kullan\u0131r. Genellikle taray\u0131c\u0131 tabanl\u0131 uygulamalar (SPA olmayan) i\u00e7in uygundur.<\/li>\n
- TokenAuthentication:<\/strong> Her istekte bir token g\u00f6nderilmesini gerektirir. Mobil uygulamalar ve SPA'lar (Single Page Applications) i\u00e7in yayg\u0131n olarak tercih edilir.
pip install djangorestframework-jwt<\/code> ile JWT (JSON Web Token) de kullanabilirsiniz.<\/li>\n- BasicAuthentication:<\/strong> Kullan\u0131c\u0131 ad\u0131 ve \u015fifrenin her istekte HTTP Basic Auth ba\u015fl\u0131\u011f\u0131 arac\u0131l\u0131\u011f\u0131yla g\u00f6nderildi\u011fi basit bir y\u00f6ntemdir. Daha az g\u00fcvenli oldu\u011fu i\u00e7in genellikle sadece test ama\u00e7l\u0131 veya HTTPS ile birlikte kullan\u0131l\u0131r.<\/li>\n<\/ol>\n
Bu y\u00f6ntemleri settings.py<\/code> dosyan\u0131zda veya do\u011frudan APIView<\/code> s\u0131n\u0131flar\u0131n\u0131zda belirleyebilirsiniz:<\/p>\n\n# settings.py\nREST_FRAMEWORK = {\n 'DEFAULT_AUTHENTICATION_CLASSES': [\n 'rest_framework.authentication.TokenAuthentication',\n 'rest_framework.authentication.SessionAuthentication',\n ],\n # ... di\u011fer ayarlar\n}\n <\/pre>\n<\/code><\/p>\n
\u0130zin Y\u00f6netimi (Permissions):<\/strong> Kimlik do\u011frulama bir kullan\u0131c\u0131n\u0131n kim oldu\u011funu belirlerken, izinler \"Bu kullan\u0131c\u0131n\u0131n bu i\u015flemi yapmaya yetkisi var m\u0131?\" sorusuna yan\u0131t verir. DRF, kullan\u0131ma haz\u0131r bir\u00e7ok izin s\u0131n\u0131f\u0131 sunar:<\/p>\n\nAllowAny<\/code>: T\u00fcm kullan\u0131c\u0131lara (kimli\u011fi do\u011frulanm\u0131\u015f veya do\u011frulanmam\u0131\u015f) eri\u015fim izni verir.<\/li>\nIsAuthenticated<\/code>: Yaln\u0131zca kimli\u011fi do\u011frulanm\u0131\u015f kullan\u0131c\u0131lara eri\u015fim izni verir.<\/li>\nIsAdminUser<\/code>: Yaln\u0131zca y\u00f6netici (is_staff True olan) kullan\u0131c\u0131lara eri\u015fim izni verir.<\/li>\nIsAuthenticatedOrReadOnly<\/code>: Kimli\u011fi do\u011frulanm\u0131\u015f kullan\u0131c\u0131lar i\u00e7in tam eri\u015fim, di\u011ferleri i\u00e7in sadece okuma izni.<\/li>\n<\/ul>\nBu izinleri de settings.py<\/code> veya g\u00f6r\u00fcn\u00fcm s\u0131n\u0131flar\u0131nda uygulayabiliriz:<\/p>\n\n# urunler\/views.py\nfrom rest_framework.permissions import IsAuthenticated, IsAdminUser\nfrom rest_framework import viewsets\n# ...\n\nclass ProductViewSet(viewsets.ModelViewSet):\n queryset = Product.objects.all()\n serializer_class = ProductSerializer\n permission_classes = [IsAuthenticatedOrReadOnly] # Sadece okunabilir, authenticated kullan\u0131c\u0131lar de\u011fi\u015fiklik yapabilir.\n\n def get_permissions(self):\n # Y\u00f6neticilerin her \u015feyi yapabilmesini, di\u011fer kullan\u0131c\u0131lar\u0131n sadece okuyabilmesini sa\u011flayal\u0131m\n if self.action in ['create', 'update', 'partial_update', 'destroy']:\n self.permission_classes = [IsAdminUser]\n else:\n self.permission_classes = [AllowAny]\n return super(self.__class__, self).get_permissions()\n <\/pre>\n<\/code><\/p>\n
Vaka Analizi: E-ticaret Uygulamas\u0131nda \u00dcr\u00fcn Y\u00f6netimi<\/strong><\/p>\nBir e-ticaret platformunda, \u00fcr\u00fcn bilgilerinin sadece y\u00f6neticiler taraf\u0131ndan g\u00fcncellenebilmesi, ancak t\u00fcm ziyaret\u00e7iler taraf\u0131ndan g\u00f6r\u00fcnt\u00fclenebilmesi istenir. Yukar\u0131daki get_permissions<\/code> metodu tam da bu senaryoya uygun bir \u00e7\u00f6z\u00fcm sunar. create<\/code>, update<\/code>, partial_update<\/code>, destroy<\/code> gibi yazma i\u015flemleri i\u00e7in IsAdminUser<\/code> izni uygulan\u0131rken, list<\/code> ve retrieve<\/code> gibi okuma i\u015flemleri i\u00e7in AllowAny<\/code> (veya IsAuthenticatedOrReadOnly<\/code>) izni kullan\u0131labilir. Bu sayede, uygulaman\u0131z\u0131n kritik i\u015flevlerini sadece yetkili personelin kullanmas\u0131n\u0131 sa\u011flarken, herkese a\u00e7\u0131k bilgilere eri\u015fimi k\u0131s\u0131tlamam\u0131\u015f olursunuz.<\/p>\nAyr\u0131ca, \u00f6zel izin s\u0131n\u0131flar\u0131 yazarak daha karma\u015f\u0131k mant\u0131klar\u0131 da uygulayabilirsiniz. \u00d6rne\u011fin, bir kullan\u0131c\u0131n\u0131n yaln\u0131zca kendi olu\u015fturdu\u011fu verileri de\u011fi\u015ftirmesine izin vermek i\u00e7in IsOwnerOrReadOnly<\/code> gibi bir s\u0131n\u0131f yaz\u0131labilir. G\u00fcvenlik, katmanl\u0131 bir yakla\u015f\u0131mla ele al\u0131nmal\u0131 ve her katmanda (veri taban\u0131, uygulama, API a\u011f ge\u00e7idi vb.) gerekli \u00f6nlemler al\u0131nmal\u0131d\u0131r. Unutmay\u0131n ki g\u00fcvenlik sadece kimlik do\u011frulama ve izinlerden ibaret de\u011fildir; ayn\u0131 zamanda HTTPS kullan\u0131m\u0131, girdi do\u011frulamas\u0131 ve g\u00fcvenli \u015fifre saklama gibi uygulamalar\u0131 da i\u00e7erir.<\/p>\nPerformans Optimizasyonu ve \u00d6nbellekleme: API'lar\u0131m\u0131z\u0131 Nas\u0131l H\u0131zland\u0131r\u0131r\u0131z?<\/h2>\n
Bir API'nin ba\u015far\u0131s\u0131, sadece fonksiyonelli\u011fiyle de\u011fil, ayn\u0131 zamanda h\u0131z\u0131 ve yan\u0131t s\u00fcresiyle de \u00f6l\u00e7\u00fcl\u00fcr. Yava\u015f bir API, kullan\u0131c\u0131 deneyimini olumsuz etkiler ve uygulaman\u0131z\u0131n genel performans\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcr. Django API'lar\u0131n\u0131z\u0131n performans\u0131n\u0131 art\u0131rmak i\u00e7in kullanabilece\u011finiz ba\u015fl\u0131ca y\u00f6ntemler veritaban\u0131 sorgu optimizasyonu ve \u00f6nbelleklemedir.<\/p>\n
Veritaban\u0131 Sorgular\u0131n\u0131 Optimize Etme<\/h3>\n
Django ORM, geli\u015ftiricilere g\u00fc\u00e7l\u00fc bir soyutlama katman\u0131 sunsa da, yanl\u0131\u015f kullan\u0131ld\u0131\u011f\u0131nda \"N+1 sorgu problemi\" gibi performans darbo\u011fazlar\u0131na yol a\u00e7abilir. Bu sorun, ili\u015fkisel verileri \u00e7ekerken her bir ana nesne i\u00e7in ayr\u0131 ayr\u0131 ek sorgular yap\u0131lmas\u0131yla ortaya \u00e7\u0131kar. Neyse ki, Django ORM bu durumu a\u015fmak i\u00e7in select_related<\/code> ve prefetch_related<\/code> gibi y\u00f6ntemler sunar:<\/p>\n\nselect_related<\/code> (Tekil \u0130li\u015fkiler \u0130\u00e7in):<\/strong> ForeignKey ve OneToOneField gibi tekil ili\u015fkileri tek bir JOIN sorgusuyla \u00e7eker. Bu, ili\u015fkili nesnelere eri\u015firken ek sorgular\u0131 engeller.<\/li>\nprefetch_related<\/code> (\u00c7oklu \u0130li\u015fkiler \u0130\u00e7in):<\/strong> ManyToManyField ve ters ForeignKey ili\u015fkileri gibi \"bir\u00e7ok\" ili\u015fkileri ayr\u0131 bir sorguyla \u00e7eker ve Python taraf\u0131nda birle\u015ftirir. Bu da N+1 sorununu \u00f6nler.<\/li>\n<\/ul>\n\u00d6rnek senaryo: Her \u00fcr\u00fcn\u00fcn bir kategorisi oldu\u011funu varsayal\u0131m. \u00dcr\u00fcnleri listelerken kategorilerini de g\u00f6stermek istedi\u011fimizde:<\/p>\n
\n# K\u00f6t\u00fc performans: Her \u00fcr\u00fcn i\u00e7in kategori sorgusu\nproducts = Product.objects.all()\nfor product in products:\n print(product.name, product.category.name) # Her d\u00f6ng\u00fcde yeni bir sorgu\n\n# \u0130yi performans: Tek sorguda t\u00fcm \u00fcr\u00fcnler ve kategorileri\nproducts = Product.objects.all().select_related('category')\nfor product in products:\n print(product.name, product.category.name) # \u0130li\u015fkili kategori tek sorguda \u00e7ekildi\n <\/pre>\n<\/code><\/p>\n
DRF \u00d6nbellekleme Stratejileri<\/h3>\n
\u00d6nbellekleme, s\u0131k\u00e7a istenen verileri veya API yan\u0131tlar\u0131n\u0131 haf\u0131zada saklayarak, ayn\u0131 istek geldi\u011finde veritaban\u0131na gitmek yerine \u00f6nbellekten h\u0131zl\u0131ca yan\u0131t vermeyi sa\u011flar. Bu, \u00f6zellikle okuma a\u011f\u0131rl\u0131kl\u0131 API'lar i\u00e7in performans\u0131 dramatik \u015fekilde art\u0131rabilir.<\/p>\n
Django, farkl\u0131 \u00f6nbellek arka u\u00e7lar\u0131 (Redis, Memcached, veritaban\u0131 \u00f6nbelle\u011fi) ile \u00e7al\u0131\u015fmay\u0131 destekler. settings.py<\/code> dosyan\u0131zda \u00f6nbellek ayarlar\u0131n\u0131z\u0131 yap\u0131land\u0131rabilirsiniz:<\/p>\n\n# settings.py\nCACHES = {\n 'default': {\n 'BACKEND': 'django.core.cache.backends.redis.RedisCache',\n 'LOCATION': 'redis:\/\/127.0.0.1:6379\/1', # Redis \u00f6rne\u011fi\n 'TIMEOUT': 300, # 5 dakika\n 'OPTIONS': {\n 'CLIENT_CLASS': 'django_redis.client.DefaultClient',\n }\n }\n}\n <\/pre>\n<\/code><\/p>\n
DRF'de API g\u00f6r\u00fcn\u00fcmlerini \u00f6nbelle\u011fe almak i\u00e7in django-rest-framework-extensions<\/code> gibi k\u00fct\u00fcphanelerden veya do\u011frudan Django'nun cache_page<\/code> dekorat\u00f6r\u00fcnden faydalanabilirsiniz. \u00d6rne\u011fin, bir ProductList<\/code> g\u00f6r\u00fcn\u00fcm\u00fcn\u00fc \u00f6nbelle\u011fe almak i\u00e7in:<\/p>\n\n# urunler\/views.py\nfrom django.utils.decorators import method_decorator\nfrom django.views.decorators.cache import cache_page\nfrom rest_framework.views import APIView\nfrom rest_framework.response import Response\nfrom .models import Product\nfrom .serializers import ProductSerializer\n\n@method_decorator(cache_page(60 * 5), name='dispatch') # 5 dakika \u00f6nbelle\u011fe al\nclass CachedProductListView(APIView):\n def get(self, request):\n products = Product.objects.all().select_related('category')\n serializer = ProductSerializer(products, many=True)\n return Response(serializer.data)\n <\/pre>\n<\/code><\/p>\n
Bu y\u00f6ntemle, ayn\u0131 GET<\/code> iste\u011fi 5 dakika boyunca geldi\u011finde, veritaban\u0131na hi\u00e7 gitmeden do\u011frudan \u00f6nbellekten yan\u0131t d\u00f6necektir. \u00d6zellikle s\u0131k g\u00fcncellenmeyen, ancak \u00e7ok say\u0131da istek alan API endpoint'leri i\u00e7in bu teknik b\u00fcy\u00fck bir avantaj sa\u011flar.<\/p>\n\n Uzman \u0130pucu: \u00d6nbellekleme stratejinizi belirlerken, verinin g\u00fcncellenme s\u0131kl\u0131\u011f\u0131n\u0131 g\u00f6z \u00f6n\u00fcnde bulundurun. S\u0131k de\u011fi\u015fen veriler i\u00e7in k\u0131sa s\u00fcreli \u00f6nbellekleme veya invalidate<\/code> (\u00f6nbelle\u011fi temizleme) mekanizmalar\u0131 kullanmak, taze verinin sunulmas\u0131n\u0131 sa\u011flar.\n <\/div>\nPerformans optimizasyonu tek seferlik bir i\u015flem de\u011fildir; uygulaman\u0131z b\u00fcy\u00fcd\u00fck\u00e7e s\u00fcrekli izlenmesi ve ayarlanmas\u0131 gereken bir s\u00fcre\u00e7tir. Profilleme ara\u00e7lar\u0131 ve loglama mekanizmalar\u0131 kullanarak darbo\u011fazlar\u0131 tespit edip, do\u011fru optimizasyon tekniklerini uygulaman\u0131z, API'lar\u0131n\u0131z\u0131n her zaman h\u0131zl\u0131 ve verimli \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flayacakt\u0131r.<\/p>\n
Uygulama Alanlar\u0131 ve Ger\u00e7ek D\u00fcnya Senaryosu: Mikroservis Mimarileriyle Django API'lar\u0131 ve Mobil Uyum<\/h2>\n
G\u00fcn\u00fcm\u00fczde modern uygulamalar genellikle monolitik yap\u0131lar yerine mikroservis mimarileriyle tasarlanmaktad\u0131r. Django, g\u00fc\u00e7l\u00fc bir web \u00e7at\u0131s\u0131 ve DRF sayesinde, bu mikroservis mimarisinde ba\u011f\u0131ms\u0131z API servisleri olu\u015fturmak i\u00e7in m\u00fckemmel bir adayd\u0131r. Bir e-ticaret platformunu ele alarak bu konuyu daha yak\u0131ndan inceleyelim.<\/p>\n
Mikroservis Mimarilerinde Django'nun Rol\u00fc<\/h3>\n
Bir e-ticaret platformunda, sipari\u015f y\u00f6netimi, stok takibi, kullan\u0131c\u0131 profilleri ve \u00f6deme i\u015flemleri gibi farkl\u0131 i\u015f alanlar\u0131 bulunur. Mikroservis mimarisinde, bu i\u015f alanlar\u0131n\u0131n her biri kendi ba\u011f\u0131ms\u0131z servisi olarak geli\u015ftirilebilir. \u00d6rne\u011fin:<\/p>\n
\n- Sipari\u015f Servisi (Django API):<\/strong> M\u00fc\u015fterilerin sipari\u015flerini olu\u015fturma, takip etme ve y\u00f6netme i\u015flevlerini sa\u011flar. Kendi veritaban\u0131na sahip olabilir ve sadece sipari\u015fle ilgili verilere odaklan\u0131r.<\/li>\n
- Stok Servisi (Ba\u015fka bir teknoloji olabilir veya yine Django API):<\/strong> \u00dcr\u00fcnlerin stok durumunu y\u00f6netir, sipari\u015f geldik\u00e7e stoklar\u0131 g\u00fcnceller.<\/li>\n
- Kullan\u0131c\u0131 Servisi (Django API):<\/strong> Kullan\u0131c\u0131 kayd\u0131, giri\u015fi, profil bilgileri gibi i\u015flemleri y\u00f6netir.<\/li>\n<\/ul>\n
Bu servisler birbirleriyle HTTP\/REST API \u00e7a\u011fr\u0131lar\u0131 veya mesaj kuyruklar\u0131 (RabbitMQ, Kafka) arac\u0131l\u0131\u011f\u0131yla ileti\u015fim kurar. Django REST Framework ile olu\u015fturulan API'lar, bu servisler aras\u0131 ileti\u015fimin omurgas\u0131n\u0131 olu\u015fturabilir. \u00d6rne\u011fin, bir sipari\u015f olu\u015fturuldu\u011funda Sipari\u015f Servisi, Stok Servisine bir mesaj g\u00f6ndererek ilgili \u00fcr\u00fcn\u00fcn sto\u011funu g\u00fcncellemesini isteyebilir. Bu esneklik, her servisin ba\u011f\u0131ms\u0131z olarak geli\u015ftirilmesini, da\u011f\u0131t\u0131lmas\u0131n\u0131 ve \u00f6l\u00e7eklenmesini sa\u011flar.<\/p>\n
\n# Sipari\u015f Servisi (Django) i\u00e7indeki bir \u00f6rnek g\u00f6r\u00fcn\u00fcm\nfrom rest_framework import status\nfrom rest_framework.response import Response\nfrom rest_framework.views import APIView\nimport requests # Stok servisiyle ileti\u015fim i\u00e7in\n\nclass OrderCreateAPIView(APIView):\n def post(self, request, *args, **kwargs):\n # Sipari\u015f olu\u015fturma mant\u0131\u011f\u0131\n order_data = request.data\n # ... Sipari\u015f veritaban\u0131na kaydedilir ...\n\n # Stok servisini g\u00fcncelleme\n try:\n stock_service_url = \"http:\/\/stock-service\/api\/decrease-stock\/\"\n response = requests.post(stock_service_url, json={'product_id': order_data['product_id'], 'quantity': order_data['quantity']})\n response.raise_for_status() # Hata durumunda istisna f\u0131rlat\n except requests.exceptions.RequestException as e:\n # Stok servisine ula\u015f\u0131lamazsa veya hata d\u00f6nerse\n return Response({\"error\": \"Stok g\u00fcncelleme hatas\u0131: \" + str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)\n\n return Response({\"message\": \"Sipari\u015f ba\u015far\u0131yla olu\u015fturuldu.\"}, status=status.HTTP_201_CREATED)\n <\/pre>\n<\/code><\/p>\n
Bu senaryo, Django'nun sadece monolitik uygulamalar i\u00e7in de\u011fil, ayn\u0131 zamanda da\u011f\u0131t\u0131k ve \u00f6l\u00e7eklenebilir mikroservis mimarileri i\u00e7in de ne kadar uygun oldu\u011funu g\u00f6sterir. API Gateway gibi yap\u0131lar, d\u0131\u015f d\u00fcnyaya a\u00e7\u0131lan tek bir aray\u00fcz sa\u011flayarak bu servislerin y\u00f6netimini kolayla\u015ft\u0131r\u0131r.<\/p>\n
Tablo: Mikroservisler Aras\u0131 \u0130leti\u015fim Metotlar\u0131<\/strong><\/p>\n\n\n\nMetot<\/th>\n A\u00e7\u0131klama<\/th>\n Avantajlar\u0131<\/th>\n Dezavantajlar\u0131<\/th>\n<\/tr>\n<\/thead>\n \n\nHTTP\/REST API<\/td>\n Do\u011frudan API \u00e7a\u011fr\u0131lar\u0131 ile senkron ileti\u015fim<\/td>\n Basit, yayg\u0131n, hemen yan\u0131t al\u0131n\u0131r<\/td>\n Servisler aras\u0131 ba\u011f\u0131ml\u0131l\u0131k artar, senkron bloklama<\/td>\n<\/tr>\n \nMesaj Kuyruklar\u0131<\/td>\n Asenkron mesajla\u015fma (RabbitMQ, Kafka)<\/td>\n Servisler aras\u0131 gev\u015fek ba\u011fl\u0131l\u0131k, hata tolerans\u0131, \u00f6l\u00e7eklenebilirlik<\/td>\n Daha karma\u015f\u0131k altyap\u0131, gecikme olabilir<\/td>\n<\/tr>\n \nGraphQL<\/td>\n API \u00e7a\u011fr\u0131lar\u0131n\u0131 esnekle\u015ftirir, tek bir endpoint \u00fczerinden sorgu<\/td>\n Veri a\u015f\u0131m\u0131\/eksikli\u011fi \u00f6nler, tek istekte \u00e7ok veri<\/td>\n Daha y\u00fcksek \u00f6\u011frenme e\u011frisi, \u00f6nbellekleme zorlu\u011fu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nMobil Uyumlu API ve Frontend Entegrasyonu<\/h3>\n
Django REST Framework, veri odakl\u0131 bir \u00e7er\u00e7eve oldu\u011fu i\u00e7in do\u011frudan \"mobil uyumlu HTML\" \u00fcretmez; bunun yerine mobil uygulamalar veya web frontend'leri taraf\u0131ndan t\u00fcketilecek JSON veya XML yan\u0131tlar\u0131 sunar. Ancak, e\u011fer Django kendi b\u00fcnyesinde bir web frontend'i de bar\u0131nd\u0131r\u0131yorsa (\u00f6rne\u011fin Django Templates kullanarak), bu durumda mobil uyumluluk devreye girer. Bu t\u00fcr durumlarda, Django taraf\u0131ndan sunulan HTML i\u00e7eri\u011finin responsive (duyarl\u0131) olmas\u0131 gerekir.<\/p>\n
Bir mobil uyumlu HTML sayfas\u0131n\u0131n temel yap\u0131 ta\u015flar\u0131 viewport<\/code> meta etiketi ve CSS media query<\/code>'leridir. Django'nun serve etti\u011fi bir index.html<\/code> dosyas\u0131nda bu yap\u0131lar a\u015fa\u011f\u0131daki gibi kullan\u0131l\u0131r:<\/p>\n\n\n\n\n \n \n Mobil Uyumlu Sayfam<\/title>\n <style>\n body {\n font-family: Arial, sans-serif;\n margin: 20px;\n }\n .container {\n width: 90%;\n margin: 0 auto;\n padding: 20px;\n border: 1px solid #ccc;\n }\n h1 {\n color: #333;\n }\n \/* Mobil cihazlar i\u00e7in medya sorgusu *\/\n @media screen and (max-width: 768px) {\n .container {\n width: 100%;\n padding: 10px;\n }\n h1 {\n font-size: 1.5em;\n }\n p {\n font-size: 0.9em;\n }\n }\n <\/style>\n<\/head>\n<body>\n <div class=\"container\">\n <h1>Django Destekli Mobil Dostu \u0130\u00e7erik<\/h1>\n <p>Bu i\u00e7erik, Django API'lar\u0131 taraf\u0131ndan besleniyor ve mobil cihazlarda en iyi g\u00f6r\u00fcnt\u00fcleme deneyimi i\u00e7in tasarlanm\u0131\u015ft\u0131r. Taray\u0131c\u0131 geni\u015fli\u011fini de\u011fi\u015ftirerek responsive tasar\u0131m\u0131 g\u00f6rebilirsiniz.<\/p>\n <code>console.log(\"Modern Kod \u00d6rne\u011fi\");<\/code>\n <\/div>\n<\/body>\n<\/html>\n <\/pre>\n<p><\/code><\/p>\n<p>Django, bu HTML dosyas\u0131n\u0131 bir <code>TemplateView<\/code> ile servis edebilir veya statik dosya olarak sunabilir. \u00d6nemli olan, API'niz mobil uygulamalar taraf\u0131ndan t\u00fcketilirken, uygulaman\u0131z\u0131n kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fcn (mobil uygulama veya responsive web sitesi) bu API verilerini mobil dostu bir \u015fekilde sunmas\u0131d\u0131r. DRF'nin kendisi responsive tasar\u0131m\u0131 do\u011frudan ele almaz, ancak mobil uygulamalar\u0131n veri ihtiya\u00e7lar\u0131na uygun (pagination, field selection) API'lar tasarlaman\u0131z, mobil uyumlulu\u011fu dolayl\u0131 yoldan destekler.<\/p>\n<h2>Sonu\u00e7: Django ile API Geli\u015ftirmenin Gelece\u011fi ve S\u0131k\u00e7a Sorulan Sorular<\/h2>\n<p>Django geli\u015ftirme yolculu\u011funuzun 18. g\u00fcn\u00fcnde, ileri seviye API tasar\u0131m\u0131n\u0131n ve optimizasyonunun karma\u015f\u0131k d\u00fcnyas\u0131na derinlemesine bir dal\u0131\u015f yapt\u0131k. RESTful API'lar\u0131n temel prensiplerinden ba\u015flayarak, Django REST Framework'\u00fcn sundu\u011fu ViewSet'ler ve Router'lar arac\u0131l\u0131\u011f\u0131yla h\u0131zl\u0131 API geli\u015ftirmeyi \u00f6\u011frendik. Ard\u0131ndan, API'lar\u0131m\u0131z\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kimlik do\u011frulama ve izin mekanizmalar\u0131n\u0131 detayl\u0131 bir \u015fekilde inceledik ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla peki\u015ftirdik. Performans\u0131n ne kadar kritik oldu\u011funu vurgulayarak, veritaban\u0131 sorgu optimizasyonlar\u0131 ve \u00f6nbellekleme stratejileriyle API'lar\u0131m\u0131z\u0131 nas\u0131l h\u0131zland\u0131rabilece\u011fimizi ke\u015ffettik.<\/p>\n<p>Mikroservis mimarilerinde Django API'lar\u0131n\u0131n nas\u0131l konumland\u0131r\u0131labilece\u011fine dair bir vaka analizini ele al\u0131rken, mobil uyumlu frontend entegrasyonuna da de\u011findik. Bu bilgiler \u0131\u015f\u0131\u011f\u0131nda, art\u0131k sadece \u00e7al\u0131\u015fan bir API de\u011fil, ayn\u0131 zamanda g\u00fcvenli, h\u0131zl\u0131, \u00f6l\u00e7eklenebilir ve bak\u0131m\u0131 kolay API'lar in\u015fa etme yetene\u011fine sahipsiniz. Django ve Django REST Framework, modern web geli\u015ftirme ihtiya\u00e7lar\u0131n\u0131 kar\u015f\u0131lamak i\u00e7in s\u00fcrekli evrilen, g\u00fc\u00e7l\u00fc ve topluluk destekli ara\u00e7lard\u0131r. Gelecekte, GraphQL gibi alternatif API yakla\u015f\u0131mlar\u0131n\u0131 veya daha geli\u015fmi\u015f CI\/CD s\u00fcre\u00e7lerini ke\u015ffetmek, beceri setinizi daha da zenginle\u015ftirecektir. Unutmay\u0131n, en iyi \u00f6\u011frenme, pratik ve s\u00fcrekli ke\u015fiften ge\u00e7er.<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h3>\n<h4>1. Django REST Framework'\u00fc (DRF) kullanmak zorunlu mu?<\/h4>\n<p>Hay\u0131r, Django REST Framework'\u00fc kullanmak zorunlu de\u011fildir. Django'nun kendi temel View'lerini kullanarak da API'lar olu\u015fturabilirsiniz. Ancak DRF, serile\u015ftirme, kimlik do\u011frulama, izinler, \u00f6nbellekleme gibi API geli\u015ftirmeyle ilgili bir\u00e7ok karma\u015f\u0131k konuyu standartla\u015ft\u0131r\u0131r ve basitle\u015ftirir. Bu nedenle, genellikle daha h\u0131zl\u0131 ve daha az kodla daha sa\u011flam API'lar geli\u015ftirmenize olanak tan\u0131r. \u00c7o\u011fu RESTful API projesi i\u00e7in \u015fiddetle tavsiye edilir.<\/p>\n<h4>2. API g\u00fcvenli\u011fini nas\u0131l daha da art\u0131rabilirim?<\/h4>\n<p>API g\u00fcvenli\u011fini art\u0131rmak i\u00e7in \u00e7ok katmanl\u0131 bir yakla\u015f\u0131m benimsemek \u00f6nemlidir. Kimlik do\u011frulama ve izinlerin yan\u0131 s\u0131ra \u015funlar\u0131 g\u00f6z \u00f6n\u00fcnde bulundurmal\u0131s\u0131n\u0131z:<\/p>\n<ul>\n<li>Her zaman HTTPS kullan\u0131n.<\/li>\n<li>Girdi do\u011frulamas\u0131 (Input Validation) ile k\u00f6t\u00fc niyetli verileri engelleyin.<\/li>\n<li>H\u0131z s\u0131n\u0131rlamas\u0131 (Rate Limiting) uygulayarak k\u00f6t\u00fcye kullan\u0131m\u0131 ve DDoS sald\u0131r\u0131lar\u0131n\u0131 \u00f6nleyin.<\/li>\n<li>API anahtarlar\u0131 veya token'lar\u0131 g\u00fcvenli bir \u015fekilde saklay\u0131n ve y\u00f6netin.<\/li>\n<li>G\u00fcvenlik ba\u015fl\u0131klar\u0131n\u0131 (CSRF, XSS korumas\u0131 gibi) do\u011fru yap\u0131land\u0131r\u0131n.<\/li>\n<li>G\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 tarayan ara\u00e7lar kullan\u0131n ve d\u00fczenli g\u00fcvenlik denetimleri yap\u0131n.<\/li>\n<\/ul>\n<h4>3. B\u00fcy\u00fck \u00f6l\u00e7ekli uygulamalarda Django API'lar\u0131 yeterli mi?<\/h4>\n<p>Kesinlikle evet. Django ve DRF, Instagram, Pinterest gibi d\u00fcnya \u00e7ap\u0131nda pop\u00fcler bir\u00e7ok b\u00fcy\u00fck \u00f6l\u00e7ekli uygulamada kullan\u0131lmaktad\u0131r. Do\u011fru mimari (mikroservisler gibi), optimize edilmi\u015f veritaban\u0131 sorgular\u0131, etkili \u00f6nbellekleme stratejileri, yatay \u00f6l\u00e7eklendirme (birden fazla sunucuya da\u011f\u0131tma) ve g\u00fc\u00e7l\u00fc bir sunucu altyap\u0131s\u0131yla birlikte kullan\u0131ld\u0131\u011f\u0131nda, Django API'lar\u0131 milyonlarca kullan\u0131c\u0131ya hizmet verebilecek kapasitededir.<\/p>\n<h4>4. API dok\u00fcmantasyonu i\u00e7in hangi ara\u00e7lar\u0131 \u00f6nerirsiniz?<\/h4>\n<p>API dok\u00fcmantasyonu, API'nizi t\u00fcketecek geli\u015ftiriciler i\u00e7in kritik \u00f6neme sahiptir. Django REST Framework ile uyumlu pop\u00fcler dok\u00fcmantasyon ara\u00e7lar\u0131 \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>drf-spectacular:<\/strong> OpenAPI (Swagger) spesifikasyonunu otomatik olarak \u00fcreten modern ve kapsaml\u0131 bir k\u00fct\u00fcphanedir. Hem Swagger UI hem de ReDoc aray\u00fczlerini destekler.<\/li>\n<li><strong>drf-yasg:<\/strong> Yine OpenAPI\/Swagger dok\u00fcmantasyonu olu\u015fturan pop\u00fcler bir se\u00e7enektir.<\/li>\n<li>Manuel olarak Markdown veya ReadTheDocs gibi ara\u00e7larla da dok\u00fcmantasyon olu\u015fturabilirsiniz, ancak otomatik ara\u00e7lar g\u00fcncellemeyi kolayla\u015ft\u0131r\u0131r.<\/li>\n<\/ul>\n<h4>5. GraphQL, REST API'ye g\u00f6re ne gibi avantajlar sunar?<\/h4>\n<p>GraphQL, REST API'ye g\u00f6re farkl\u0131 bir yakla\u015f\u0131m sunar ve baz\u0131 avantajlara sahiptir:<\/p>\n<ul>\n<li><strong>Esneklik:<\/strong> \u0130stemci, tam olarak ihtiyac\u0131 olan veriyi tek bir sorguyla isteyebilir, bu da veri a\u015f\u0131m\u0131n\u0131 (over-fetching) veya veri eksikli\u011fini (under-fetching) \u00f6nler.<\/li>\n<li><strong>Tek Endpoint:<\/strong> T\u00fcm veri i\u015flemleri genellikle tek bir HTTP endpoint'i \u00fczerinden yap\u0131l\u0131r.<\/li>\n<li><strong>Daha Az \u0130stek:<\/strong> \u00d6zellikle karma\u015f\u0131k veritaban\u0131 ili\u015fkileri olan durumlarda, REST API'de birden fazla istek gerektiren bir veri setini GraphQL tek istekte sa\u011flayabilir.<\/li>\n<\/ul>\n<p>Ancak GraphQL'in \u00f6\u011frenme e\u011frisi daha dik olabilir ve \u00f6nbellekleme stratejileri REST'e g\u00f6re farkl\u0131l\u0131k g\u00f6sterebilir. Projenizin ihtiya\u00e7lar\u0131na ve ekibinizin deneyimine g\u00f6re se\u00e7im yapmak en do\u011frusudur.<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Django Geli\u015fiminde 18. G\u00fcn: \u0130leri Seviye API Tasar\u0131m\u0131 ve Optimizasyonu Modern web ve mobil uygulamalar\u0131n kalbinde, farkl\u0131 platformlar…","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-34784","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Giri\u015f: Neden Django ile \u0130leri Seviye API Geli\u015ftirmeliyiz?<\/title>\n<meta name=\"description\" content=\"Modern web ve mobil uygulamalar\u0131n kalbinde, farkl\u0131 platformlar aras\u0131 veri al\u0131\u015fveri\u015fini sa\u011flayan g\u00fc\u00e7l\u00fc ve esnek API'lar yatar. Peki, her ge\u00e7en g\u00fcn karma\u015f\u0131kla\u015fan bu ekosistemde API'lar\u0131n\u0131z\u0131n performans, g\u00fcvenlik ve \u00f6l\u00e7eklenebilirlik gibi temel beklentileri kar\u015f\u0131lad\u0131\u011f\u0131ndan emin misiniz? 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