Files
cartsnitch-fork-test/api/src/cartsnitch_api/main.py
T
CartSnitch Engineer Bot 2460a00d4e feat(api): implement lifespan with DB and Redis connection pooling
- Refactor database.py to use init_db()/close_db() lifecycle
- Add create_db_engine() with pool_size=10, max_overflow=20, pool_pre_ping=True
- Replace cache.py stub with real Redis client using redis.asyncio
- Implement init_redis()/close_redis() with graceful error handling
- Replace no-op lifespan in main.py with proper startup/shutdown
- Enhance health endpoint to check DB and Redis connectivity
- Add tests for database, cache, and health endpoint lifecycle

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-05-04 15:07:28 +00:00

78 lines
2.7 KiB
Python

"""FastAPI app factory for CartSnitch API Gateway."""
from contextlib import asynccontextmanager
from fastapi import APIRouter, FastAPI
from cartsnitch_api.auth.routes import router as auth_router
from cartsnitch_api.cache import cache_client
from cartsnitch_api.database import dispose_engine
from cartsnitch_api.middleware.cors import add_cors_middleware
from cartsnitch_api.middleware.error_handler import add_error_handlers, add_error_monitor_middleware
from cartsnitch_api.middleware.rate_limit import add_rate_limit_middleware
from cartsnitch_api.middleware.audit import add_audit_middleware
from cartsnitch_api.routes.alerts import router as alerts_router
from cartsnitch_api.routes.coupons import router as coupons_router
from cartsnitch_api.routes.health import router as health_router
from cartsnitch_api.routes.prices import router as prices_router
from cartsnitch_api.routes.products import router as products_router
from cartsnitch_api.routes.public import router as public_router
from cartsnitch_api.routes.purchases import router as purchases_router
from cartsnitch_api.routes.scraping import router as scraping_router
from cartsnitch_api.routes.shopping import router as shopping_router
from cartsnitch_api.routes.stores import router as stores_router
from cartsnitch_api.routes.user import router as user_router
@asynccontextmanager
async def lifespan(app: FastAPI):
from cartsnitch_api.database import init_db, close_db
from cartsnitch_api.cache import init_redis, close_redis
await init_db()
await init_redis()
yield
await close_redis()
await close_db()
def create_app() -> FastAPI:
app = FastAPI(
title="CartSnitch API",
description="Grocery price tracking and shrinkflation detection API",
version="0.1.0",
lifespan=lifespan,
)
# Middleware (order matters — outermost first)
add_cors_middleware(app)
add_error_monitor_middleware(app)
add_rate_limit_middleware(app)
add_audit_middleware(app)
# Exception handlers
add_error_handlers(app)
# Routers
app.include_router(health_router)
app.include_router(auth_router)
# Data endpoints mounted under /api/v1
v1_router = APIRouter(prefix="/api/v1")
v1_router.include_router(user_router)
v1_router.include_router(stores_router)
v1_router.include_router(purchases_router)
v1_router.include_router(products_router)
v1_router.include_router(prices_router)
v1_router.include_router(coupons_router)
v1_router.include_router(shopping_router)
v1_router.include_router(alerts_router)
v1_router.include_router(scraping_router)
v1_router.include_router(public_router)
app.include_router(v1_router)
return app
app = create_app()