drf-commons 1.0.1

Django REST Framework Common Utilities - Modular apps for enhanced DRF functionality

DRF Commons

⚠️ UNDER DEVELOPMENT: This library is currently under active development. APIs may change, and some features may not be fully stable yet.

A comprehensive collection of reusable Django REST Framework utilities and components designed to accelerate API development.

Features

Core Modules

• Current User: Middleware and utilities for accessing the current user context
• Debug: Advanced logging and debugging tools with categorized loggers
• Decorators: Performance monitoring, caching, database optimization, and logging decorators
• Filters: Enhanced filtering and ordering capabilities including computed fields
• Middlewares: Current user tracking and debug middleware
• Models: Base models, mixins, and custom fields for common patterns
• Pagination: Flexible pagination classes
• Response: Standardized API response utilities
• Serializers: Enhanced serializers with custom fields and mixins
• Views: ViewSet mixins for CRUD, bulk operations, and import/export

Services

• Export File: Export data to CSV, XLSX, and PDF formats
• Import from File: Robust file import with validation and bulk operations

Installation

Install the base package:

pip install drf-commons

Install with specific features:

# For export functionality (XLSX and PDF)
pip install drf-commons[export]

# For import functionality
pip install drf-commons[import]

# For dynamic configuration
pip install drf-commons[config]

# For all features
pip install drf-commons[all]

# For development
pip install drf-commons[dev,test]

Quick Start

1. Add to INSTALLED_APPS

INSTALLED_APPS = [
    # ... your apps
    'drf_commons.current_user',
    'drf_commons.debug',
    'drf_commons.filters',
    'drf_commons.pagination',
    'drf_commons.response',
    'drf_commons.serializers',
    'drf_commons.views',
]

2. Add Middleware (Optional)

MIDDLEWARE = [
    # ... other middleware
    'drf_commons.middlewares.current_user.CurrentUserMiddleware',
    'drf_commons.middlewares.debug.DebugMiddleware',
]

3. Use in Your Code

from drf_commons.views.base import BaseViewSet
from drf_commons.serializers.base import BaseSerializer
from drf_commons.models.base import BaseModel
from drf_commons.pagination.base import CustomPageNumberPagination

class MyModel(BaseModel):
    # Your model fields
    pass

class MySerializer(BaseSerializer):
    class Meta:
        model = MyModel
        fields = '__all__'

class MyViewSet(BaseViewSet):
    queryset = MyModel.objects.all()
    serializer_class = MySerializer
    pagination_class = CustomPageNumberPagination

Usage Examples

Export Data

from drf_commons.services import ExportService

service = ExportService()

# Export to CSV (no optional dependencies required)
response = service.export_csv(
    data_rows=data,
    includes=['id', 'name', 'created_at'],
    column_config={},
    filename='export.csv',
    export_headers=[],
    document_titles=[]
)

# Export to XLSX (requires openpyxl)
response = service.export_xlsx(...)

# Export to PDF (requires weasyprint)
response = service.export_pdf(...)

Import Data

from drf_commons.services import FileImportService

config = {
    'model': MyModel,
    'fields': {
        'name': {'required': True},
        'email': {'required': True, 'unique': True},
    }
}

service = FileImportService(config)
result = service.import_file(file_path)

Use Decorators

from drf_commons.decorators.performance import measure_performance
from drf_commons.decorators.cache import cached_method

class MyViewSet(BaseViewSet):
    @measure_performance
    @cached_method(timeout=300)
    def expensive_operation(self):
        # Your expensive operation
        pass

Requirements

• Python >= 3.8
• Django >= 3.2
• djangorestframework >= 3.12

Optional Dependencies

Different features require different dependencies:

Core Package (No optional dependencies)

The base installation includes:

• Models, Serializers, Views, Pagination, Response utilities
• CSV export (no additional dependencies required)
• Filters, Decorators, Middleware

File Export ([export])

For XLSX and PDF export functionality:

• openpyxl >= 3.0 - Excel (XLSX) export
• weasyprint >= 60.0 - PDF export

File Import ([import])

For importing data from CSV and Excel files:

• pandas >= 1.3 - Data processing and file parsing
• openpyxl >= 3.0 - Excel file reading

Dynamic Configuration ([config])

For runtime configuration management:

• django-constance >= 2.9 - Dynamic Django settings

Development

Setup Development Environment

# Clone the repository
git clone https://github.com/yourusername/drf-common.git
cd drf-common

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

# Install in development mode with all dependencies
pip install -e .[dev,test,all]

Run Tests

pytest

Code Quality

# Format code
black .

# Sort imports
isort .

# Lint
flake8

# Type checking
mypy drf_commons

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License.

Author

Victoire HABAMUNGU

Support

For issues and questions, please use the GitHub issue tracker.