Project Setup

Create a Virtual Environment

Using a virtual environment helps isolate project dependencies.

# Create a virtual environment
python3 -m venv venv

# Activate the virtual environment
# On Linux/Mac:
source venv/bin/activate
# On Windows:
venv\Scripts\activate

Install Required Libraries

Install Django, Django Rest Framework, psycopg2 (for PostgreSQL), and other necessary dependencies.

# Upgrade pip
pip install --upgrade pip

# Install Django and Django Rest Framework
pip install django djangorestframework

# Install PostgreSQL driver
pip install psycopg2-binary

Create a New Django Project

Create a new project and an app.

# Create a new Django project in the current folder
django-admin startproject myproject .

# Navigate to the project directory (if needed)
cd myproject

# Create an app
python manage.py startapp myapp

Set Up Django Rest Framework

Update settings.py to include DRF and your app.

# settings.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    # Add these apps
    'rest_framework',
    'myapp',
]

# Optional: Add basic DRF settings
REST_FRAMEWORK = {
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.AllowAny',  # Allow open access for now
    ]
}

Configure PostgreSQL

Update settings.py to use PostgreSQL.

1. Install PostgreSQL and create a database:

   CREATE DATABASE myprojectdb;
   CREATE USER myprojectuser WITH PASSWORD 'mypassword';
   GRANT ALL PRIVILEGES ON DATABASE myprojectdb TO myprojectuser;

2. Update DATABASES in settings.py:

   DATABASES = {
       'default': {
           'ENGINE': 'django.db.backends.postgresql',
           'NAME': 'myprojectdb',
           'USER': 'myprojectuser',
           'PASSWORD': 'mypassword',
           'HOST': 'localhost',
           'PORT': '5432',
       }
   }

3. Apply migrations to set up the database schema:

   python manage.py makemigrations
   python manage.py migrate

Run the Development Server

Start the server and test the setup:

python manage.py runserver

Visit http://127.0.0.1:8000/api/books/ to test the API. You should see an empty list if no books exist yet.

Optional Enhancements

• Use a .env File for Secrets:

  Use libraries like python-decouple to store sensitive data like database credentials securely.

  pip install python-decouple

  Update settings.py:

  from decouple import config
  
  DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.postgresql',
          'NAME': config('DB_NAME'),
          'USER': config('DB_USER'),
          'PASSWORD': config('DB_PASSWORD'),
          'HOST': 'localhost',
          'PORT': '5432',
      }
  }

• Add Admin Superuser:

  python manage.py createsuperuser