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LedgerLine/services/notifier/app.py
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from contextlib import asynccontextmanager
import asyncio
from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse
from common.db import engine
from common.logging_config import configure_logging
from common.redis_client import redis_client
from . import consumer
SERVICE_NAME = "notifier"
logger = configure_logging(SERVICE_NAME)
@asynccontextmanager
async def lifespan(app: FastAPI):
task = asyncio.create_task(consumer.run())
yield
task.cancel()
app = FastAPI(title=SERVICE_NAME, lifespan=lifespan)
@app.get("/")
async def root():
return {"service": SERVICE_NAME, "version": "0.1.0"}
@app.get("/healthz")
async def healthz(request: Request):
if request.headers.get("X-Ledgerline-Probe") == "chatty-health":
logger.info("received chatty-health healthz probe from gateway")
return {"status": "ok", "service": SERVICE_NAME}
@app.get("/readyz")
async def readyz():
try:
async with engine.connect() as conn:
await conn.exec_driver_sql("SELECT 1")
await redis_client.ping()
except Exception as exc:
logger.exception(f"readyz check failed: {exc}")
return JSONResponse(status_code=503, content={"status": "unavailable"})
return {"status": "ok"}