{"id":163,"date":"2026-03-03T09:22:50","date_gmt":"2026-03-03T04:22:50","guid":{"rendered":"https:\/\/gigz.pk\/python\/?post_type=lesson&p=163"},"modified":"2026-03-17T08:58:05","modified_gmt":"2026-03-17T03:58:05","slug":"creating-apis","status":"publish","type":"lesson","link":"https:\/\/gigz.pk\/python\/lesson\/creating-apis\/","title":{"rendered":"\u00a0Creating APIs"},"content":{"rendered":"\n

Creating APIs allows your application to communicate with mobile apps, frontend frameworks, and other systems using JSON data.<\/p>\n\n\n\n

In Django, APIs are commonly built using Django REST Framework (DRF)<\/strong>.<\/p>\n\n\n\n

Step 1: Install and Configure DRF<\/h2>\n\n\n\n

Install DRF:<\/p>\n\n\n\n

pip install djangorestframework<\/pre>\n\n\n\n
Add it in settings.py<\/code>:<\/p>\n\n\n\n
INSTALLED_APPS = [
    ...
    'rest_framework',
]<\/pre>\n\n\n\n
Step 2: Create a Model<\/h2>\n\n\n\n
Example: Product Model<\/p>\n\n\n\n
from django.db import modelsclass Product(models.Model):
    name = models.CharField(max_length=100)
    price = models.IntegerField()
    description = models.TextField()    def __str__(self):
        return self.name<\/pre>\n\n\n\n
Run migrations:<\/p>\n\n\n\n
python manage.py makemigrations
python manage.py migrate<\/pre>\n\n\n\n
Step 3: Create a Serializer<\/h2>\n\n\n\n
Serializer converts model data into JSON format.<\/p>\n\n\n\n
Create serializers.py<\/code>:<\/p>\n\n\n\n
from rest_framework import serializers
from .models import Productclass ProductSerializer(serializers.ModelSerializer):
    class Meta:
        model = Product
        fields = '__all__'<\/pre>\n\n\n\n
Step 4: Create API Views<\/h2>\n\n\n\n
Option 1: Function-Based API View<\/h3>\n\n\n\n
from rest_framework.decorators import api_view
from rest_framework.response import Response
from .models import Product
from .serializers import ProductSerializer@api_view(['GET'])
def product_list(request):
    products = Product.objects.all()
    serializer = ProductSerializer(products, many=True)
    return Response(serializer.data)<\/pre>\n\n\n\n
Add URL<\/h3>\n\n\n\n
In urls.py<\/code>:<\/p>\n\n\n\n
from django.urls import path
from .views import product_listurlpatterns = [
    path('products\/', product_list),
]<\/pre>\n\n\n\n
Now visit:<\/p>\n\n\n\n
http:\/\/127.0.0.1:8000\/products\/<\/a><\/p>\n\n\n\n
You will see JSON data.<\/p>\n\n\n\n
Step 5: Create Full CRUD API<\/h2>\n\n\n\n
Using ModelViewSet (Recommended)<\/h3>\n\n\n\n
In views.py<\/code>:<\/p>\n\n\n\n
from rest_framework import viewsets
from .models import Product
from .serializers import ProductSerializerclass ProductViewSet(viewsets.ModelViewSet):
    queryset = Product.objects.all()
    serializer_class = ProductSerializer<\/pre>\n\n\n\n
Register Router<\/h3>\n\n\n\n
In urls.py<\/code>:<\/p>\n\n\n\n
from rest_framework.routers import DefaultRouter
from .views import ProductViewSetrouter = DefaultRouter()
router.register(r'products', ProductViewSet)urlpatterns = router.urls<\/pre>\n\n\n\n
Now you automatically get:<\/p>\n\n\n\n
GET \/products
POST \/products
GET \/products\/1
PUT \/products\/1
PATCH \/products\/1
DELETE \/products\/1<\/p>\n\n\n\n
This provides complete CRUD functionality.<\/p>\n\n\n\n
Example JSON Response<\/h2>\n\n\n\n
{
  \"id\": 1,
  \"name\": \"Laptop\",
  \"price\": 80000,
  \"description\": \"High performance laptop\"
}<\/pre>\n\n\n\n
Adding Authentication (Optional)<\/h2>\n\n\n\n
In settings.py<\/code>:<\/p>\n\n\n\n
REST_FRAMEWORK = {
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAuthenticated',
    ]
}<\/pre>\n\n\n\n
Now only logged-in users can access the API.<\/p>\n\n\n\n
Testing APIs<\/h2>\n\n\n\n
You can test APIs using:<\/p>\n\n\n\n