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"""Main FastAPI application factory for KGraph-MCP."""
import logging
from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from .core.config import get_settings
from .core.dependencies import initialize_services
from .routes import api_router
logger = logging.getLogger(__name__)
@asynccontextmanager
async def lifespan(app: FastAPI):
"""Application lifespan events."""
# Startup
logger.info("Starting up KGraph-MCP API...")
settings = get_settings()
# Configure logging
logging.basicConfig(
level=getattr(logging, settings.log_level.upper()),
format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
)
# Initialize services
success = initialize_services()
if not success:
logger.warning(
"Some services failed to initialize - continuing with limited functionality"
)
logger.info("✅ KGraph-MCP API startup complete!")
yield
# Shutdown
logger.info("Shutting down KGraph-MCP API...")
def create_app() -> FastAPI:
"""Create and configure the FastAPI application."""
settings = get_settings()
app = FastAPI(
title=settings.app_title,
description=settings.app_description,
version=settings.app_version,
debug=settings.debug,
lifespan=lifespan,
)
# Add CORS middleware
app.add_middleware(
CORSMiddleware,
allow_origins=settings.cors_origins,
allow_credentials=settings.cors_credentials,
allow_methods=settings.cors_methods,
allow_headers=settings.cors_headers,
)
# Include API routes
app.include_router(api_router)
return app
# Create the application instance
app = create_app()
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