Merge pull request #2 from teams-notifier/db-check-and-version

perform small db check on startup and get version from env vars

Author: babs

app.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 import asyncio
 import logging
+import os
 import uuid
 from contextlib import asynccontextmanager
 from typing import Annotated
@@ -46,6 +47,7 @@ async def lifespan(app: FastAPI):
 
 app: FastAPI = FastAPI(
     title="Teams Notifier gitlab-mr-api",
+    version=os.environ.get("VERSION", "v0.0.0-dev"),
     lifespan=lifespan,
     middleware=[
         Middleware(

db.py

@@ -48,6 +48,10 @@ async def connect(self):
             init=self.init_connection,
         )
 
+        # Simple check at startup, will validate database resolution and creds
+        async with await self.acquire() as connection:
+            await connection.fetchval("SELECT 1")
+
     async def init_connection(self, conn: asyncpg.Connection) -> None:
         log.debug("connecting to database")
         await conn.set_type_codec("jsonb", encoder=json.dumps, decoder=json.loads, schema="pg_catalog")