Add healthz endpoint

src/daq_queuing_service/api/api.py

@@ -7,7 +7,7 @@
     UnknownPlanError,
 )
 from blueapi.service.model import TaskRequest
-from fastapi import APIRouter, Request
+from fastapi import APIRouter, Request, Response
 from pydantic import BaseModel
 
 from daq_queuing_service.task import ExperimentDefinition, Status, Task
@@ -71,6 +71,10 @@ def create_api_router(
 ) -> APIRouter:
     router = APIRouter()
 
+    @router.get("/healthz")
+    async def healthz():
+        return Response()
+
     @router.get("/")
     def read_root(request: Request):
         base_url = str(request.base_url)

tests/unit_tests/test_api.py

@@ -69,6 +69,11 @@ def test_read_root_returns_expected_string(test_client: TestClient):
     )
 
 
+def test_healthz_returns_healthy(test_client: TestClient):
+    response = test_client.get("/healthz")
+    assert response.status_code == 200
+
+
 def test_get_queue_state_returns_queue_state(test_client: TestClient):
     response = test_client.get("/queue/state")
     assert response.status_code == 200