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.

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🚀 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.

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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

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📝 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

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⚡ 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

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📝 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().

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