processpype 1.2.0

A modular application framework with built-in FastAPI integration and pluggable services

ProcessPype

A modular application framework for building service-oriented Python applications with built-in FastAPI integration, structured logging, and pluggable services.

Features

• 🏗️ Service Framework: Define services with a clear lifecycle (initialize, configure, start, stop) and automatic REST API endpoints
• ⚡ FastAPI Integration: Each service automatically gets HTTP endpoints for status, start, stop, and configuration
• 🔧 Configuration Management: YAML file, environment variable, and programmatic configuration with Pydantic models
• 📦 Pluggable Services: Built-in clock, database, storage, notification, and monitoring services — add your own with a single class
• 🌐 REST API: Application-level endpoints for service discovery, registration, and lifecycle management
• 📊 Structured Logging: Integrated Logfire support for production-grade observability
• 🔒 Type Safe: Fully typed with MyPy strict mode
• 🧪 Well Tested: Comprehensive test suite with high coverage

Installation

# Using pip
pip install processpype

# Using uv
uv add processpype

Quick Start

import asyncio
from processpype.core.application import Application
from processpype.core.configuration.models import ApplicationConfiguration
from processpype.core.service.service import Service
from processpype.core.service.manager import ServiceManager
from processpype.core.configuration.models import ServiceConfiguration


class GreeterManager(ServiceManager):
    async def start(self) -> None:
        self.logger.info("Greeter ready")

    async def stop(self) -> None:
        self.logger.info("Greeter stopped")


class GreeterService(Service):
    configuration_class = ServiceConfiguration

    def create_manager(self) -> GreeterManager:
        return GreeterManager(self.logger)

    def requires_configuration(self) -> bool:
        return False


async def main() -> None:
    config = ApplicationConfiguration(title="Hello App", port=8080)
    async with Application(config) as app:
        await app.initialize()
        service = app.register_service(GreeterService)
        await app.start_service(service.name)


asyncio.run(main())

Core Components

• Application: Central orchestrator that manages the FastAPI server, configuration, and service lifecycle

  • Application.create(config_file): Load configuration from YAML and create an instance
  • app.register_service(ServiceClass): Register and wire a service into the application
  • app.start_service(name) / app.stop_service(name): Lifecycle control

• Service: Abstract base class for all services — implement create_manager() and optionally create_router()

  • Automatic REST endpoints: GET /services/{name}, POST /services/{name}/start, POST /services/{name}/stop
  • Built-in state machine: INITIALIZED → CONFIGURED → STARTING → RUNNING → STOPPING → STOPPED

• ServiceManager: Handles business logic for a service — implement start() and stop()

• Configuration: Pydantic-validated models loaded from YAML files, environment variables, or kwargs

Documentation

Full documentation is available at gianlucapagliara.github.io/processpype.

Development

ProcessPype uses uv for dependency management and packaging:

# Install dependencies
uv sync

# Run tests
uv run pytest

# Run type checks
uv run mypy processpype

# Run linting
uv run ruff check .

# Run pre-commit hooks
uv run pre-commit run --all-files