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Django Request-Response Mastering

This Django project demonstrates mastering request and response handling, including plain text, numbers, booleans, JSON, redirects, headers, cookies, query strings, form data, and JSON body handling.

🚀 Features

1. Response Examples

Type Example
Simple Plain Text HttpResponse('Plane Text Response')
Number Response HttpResponse(str(10))
Boolean Response HttpResponse(str(False))
JSON Response JsonResponse({'Name': 'Raihan', 'age': '18'})
Redirect Response HttpResponseRedirect('/')
Not Found Response HttpResponseNotFound('Page Not Found')
Custom Status Code HttpResponse('Status Code', status=202)
Custom Header resp = HttpResponse('Plane Text'); resp['token']='784001'
Response Cookies resp = HttpResponse('Plane Text Response with Cookie'); resp.set_cookie('Text_Cookie','784001adf')

Note: Only one return statement is executed per view. Multiple return statements cannot all run in one view.

2. Request Examples

Type Example
Request Methods GET, POST, PUT, PATCH, DELETE handled in TypesOfRequest
Query String Access via request.GET.get('param_name') e.g., QueryString view
Custom Headers Access via request.headers.get('header_name') e.g., CustomHeader view
Form Data Access via request.POST.dict() e.g., FormData view
JSON Body Access via json.loads(request.body) e.g., RequestBody view

📝 Example Usage

GET Request with Query String

GET /QueryString/?name=Raihan&city=Dhaka
Response: Query String: Raihan, Dhaka

POST Request with Form Data

POST /FormData/
Content-Type: application/x-www-form-urlencoded
name=Raihan&city=Dhaka
Response: {"name":"Raihan","city":"Dhaka"}

POST Request with JSON Body

POST /RequestBody/
Content-Type: application/json
{
  "name": "Raihan",
  "age": 18,
  "city": "Dhaka"
}
Response:
{
  "name": "Raihan",
  "age": 18,
  "city": "Dhaka"
}

Accessing Custom Header

GET /CustomHeader/
Headers:
mytoken: 784001
password: mypass
Response: Query String: 784001, mypass

⚡ Setup

# Create virtual environment
python -m venv venv
source venv/bin/activate  # Windows: venv\Scripts\activate

# Install Django
pip install django

# Start Project & App
django-admin startproject request_response_mastering
cd request_response_mastering
python manage.py startapp myapp

# Add 'core' to INSTALLED_APPS in settings.py
# Create urls.py in core app and connect views
# Run migrations and start server
python manage.py migrate
python manage.py runserver

📝 Notes

  • Use @csrf_exempt for POST requests during development/testing.
  • Only one response can be returned from a view.
  • Cookie names cannot have spaces; use letters, digits, underscores, or hyphens.
  • JSON responses are best handled with JsonResponse.
  • Query parameters and headers can be accessed via request.GET and request.headers.
  • Form data can be converted to dict with request.POST.dict().

Author: MD. Mostafa Raihan
Technology: Django, Python
Purpose: Learn and master Django Request-Response handling.