flask-structured-api

Flask Structured API

A production-ready Flask API framework with built-in storage, authentication, and AI capabilities. Designed for developers who need a robust foundation for building scalable APIs while following best practices.

✨ Core Features

🏗️ Model-First Architecture

• SQLModel + Pydantic for type-safe database operations
• Comprehensive validation with detailed error messages
• Clear separation between core and custom components
• Standardized response formats

🔐 Authentication & Security

• JWT token-based authentication
• API key management with scoping
• Role-based access control (RBAC)
• Request validation and sanitization
• Hash-based secure storage

📦 Storage System

• On-demand request/response storage
• Session-based data organization
• Compression for large payloads
• TTL-based expiration
• Flexible querying with metadata filters

🤖 AI Integration

• Provider-agnostic interface
• Response validation
• Automatic retry mechanisms
• Error handling with fallbacks

🔧 Developer Experience

• OpenAPI/Swagger documentation
• Remote debugging support
• Environment-based configuration
• Comprehensive error handling
• Warning collection system

🚀 Getting Started

Option 1: Using PyPI Package (Simplest)

# Install the core package
pip install flask-structured-api

# Create new project
mkdir my-api && cd my-api

# Initialize basic structure
flask-api init

# Install dependencies
pip install -r requirements.txt

Note: When using the PyPI package, you'll need to set up your own PostgreSQL and Redis services.

Option 2: Clean Initialize with Docker (Recommended)

For a fresh start with full Docker support:

# Create and enter project directory
mkdir my-api && cd my-api

# Initialize empty git repo
git init

# Add boilerplate as remote
git remote add boilerplate https://github.com/julianfleck/flask-structured-api.git

# Pull files without history
git pull boilerplate main --allow-unrelated-histories

# Make initial commit
git add .
git commit -m "Initial commit from boilerplate"

# Start services
docker-compose up -d

Option 3: Direct Clone

If you want to preserve boilerplate history (not recommended for production):

# Clone the repo
git clone https://github.com/julianfleck/flask-structured-api.git my-api
cd my-api

# Start services
docker-compose up -d

⚙️ Configuration

Essential environment variables:

# Required
FLASK_APP=flask_structured_api.main:app
DATABASE_URL=postgresql://user:password@localhost:5432/dbname
REDIS_URL=redis://localhost:6379/0
SECRET_KEY=your-secret-key

# Optional
AI_PROVIDER=openai
AI_API_KEY=your-api-key

📚 Documentation

• Getting Started Guide
• Architecture Overview
• API Documentation
• Development Guide
• Deployment Guide

💡 Example Usage

Protected Endpoint

from flask import Blueprint
from flask_structured_api.core.auth import require_auth
from flask_structured_api.models.responses import SuccessResponse

bp = Blueprint('example', __name__)

@bp.route('/hello', methods=['GET'])
@require_auth
def hello_world():
    return SuccessResponse(
        message="Hello, World!",
        data={"authenticated": True}
    ).dict()

Storage Decorator

from flask_structured_api.core.storage import store_api_data

@bp.route('/ai/generate', methods=['POST'])
@require_auth
@store_api_data()  # Automatically stores request/response
def generate():
    result = ai_service.generate(request.json)
    return SuccessResponse(data=result).dict()

🤝 Contributing

• Fork the repository
• Create a feature branch
• Submit a pull request

See CONTRIBUTING.md for guidelines.

📝 License

This project is licensed under the Apache License 2.0 - see LICENSE and NOTICE for details.

When using this project, please include the following attribution in your documentation:

Based on Flask Structured API (https://github.com/julianfleck/flask-structured-api)
Created by Julian Fleck and contributors