High-Performance Python Microservices & Async Background Tasks
Robust Python backend starter with FastAPI, Celery background workers, Redis queue, PostgreSQL async SQLAlchemy 2.0, JWT auth, and webhook listener.
Every module is structured for maintainability, type safety, and zero bloat.
Pre-configured webhook router, signature verification, and plan endpoints.
Long running tasks, PDF generation, AI batch jobs with Celery and Redis.
OAuth2 password flow, refresh tokens, role-based dependency injection.
Clean, modular file organization designed to integrate into your existing project in minutes.
app/
├── api/v1/endpoints/ # REST endpoints & webhook router
├── core/security.py # JWT auth & webhook signature verifier
├── models/ # SQLAlchemy 2.0 async database models
├── tasks/ # Celery async background worker tasks
docker-compose.yml # Full stack Docker orchestratorProduction-grade payment processing with cryptographic Svix webhook verification.
Pre-configured signature verification handler for order.created, customer.subscribed, and refund events.
Buyers can manage invoices, upgrade license seats, and access updated repositories anytime.
Instant automated repository invitation via Polar.sh with continuous git pull version updates.
Every starter kit and UI primitive adheres to strict engineering benchmarks.
End-to-End Strict TypeScript & Dart
Verified Webhook Security
Clean, Modular Architecture
Continuous Maintenance
Everything you need to know about licensing, setup, and support.
DevPreFlight provides production-grade starter kits and boilerplates categorized into 3 distinct tiers: Tier 1 (Micro Modules, $19-$29) for single-purpose utilities like webhook handlers or UI kits; Tier 2 (Core Feature Kits, $49-$69) for core auth, payment, and database setups; and Tier 3 (The All-in-One Mega Starter Kit, $99-$149) for complete full-stack SaaS boilerplates with lifetime updates and instant GitHub repository access.