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PolyWeather/web/app_factory.py
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2026-05-14 20:01:26 +08:00
"""Application assembly for the PolyWeather FastAPI backend.
This module centralizes router registration while preserving the existing
``web.core.app`` singleton and middleware setup during the transition toward a
more modular backend structure.
"""
from fastapi import FastAPI
from web.core import app as core_app
from web.routers.analytics import router as analytics_router
from web.routers.city import router as city_router
from web.routers.auth import router as auth_router
from web.routers.ops import router as ops_router
from web.routers.payments import router as payments_router
from web.routers.scan import router as scan_router
from web.routers.system import router as system_router
from web.routes import router as legacy_router
_ROUTES_REGISTERED_FLAG = "_polyweather_routes_registered"
def create_app() -> FastAPI:
"""Return the configured FastAPI app with routers registered once."""
if not bool(getattr(core_app.state, _ROUTES_REGISTERED_FLAG, False)):
core_app.include_router(system_router)
core_app.include_router(city_router)
core_app.include_router(auth_router)
core_app.include_router(analytics_router)
core_app.include_router(scan_router)
core_app.include_router(payments_router)
core_app.include_router(ops_router)
core_app.include_router(legacy_router)
setattr(core_app.state, _ROUTES_REGISTERED_FLAG, True)
return core_app