Initial commit: FastAPI app with Loguru, PostgreSQL, and Docker Compose

Made-with: Cursor

main.py

@@ -0,0 +1,58 @@
+import sys
+from contextlib import asynccontextmanager
+
+import uvicorn
+from fastapi import FastAPI
+from fastapi.responses import JSONResponse
+from loguru import logger
+from sqlalchemy.exc import SQLAlchemyError
+
+from app.database import check_database, engine
+
+logger.remove()
+logger.add(
+    sys.stderr,
+    format="<green>{time:YYYY-MM-DD HH:mm:ss}</green> | <level>{level: <8}</level> | <cyan>{name}</cyan>:<cyan>{function}</cyan> - <level>{message}</level>",
+)
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    await check_database()
+    logger.info("Database connection verified")
+    yield
+    await engine.dispose()
+    logger.info("Database engine disposed")
+
+
+app = FastAPI(
+    title="Operation Room Monitor",
+    lifespan=lifespan,
+)
+
+
+@app.get("/health")
+async def health():
+    logger.debug("Health check")
+    try:
+        await check_database()
+    except SQLAlchemyError as exc:
+        logger.warning("Health check: database unavailable: {}", exc)
+        return JSONResponse(
+            status_code=503,
+            content={"status": "degraded", "database": "unavailable"},
+        )
+    return {"status": "ok", "database": "connected"}
+
+
+def main() -> None:
+    uvicorn.run(
+        "main:app",
+        host="0.0.0.0",
+        port=8000,
+        reload=True,
+    )
+
+
+if __name__ == "__main__":
+    main()