sse events sample

openapi_first/templates/vet_app/routes.py

@@ -11,6 +11,9 @@ in the OpenAPI specification.
 """
 
 from fastapi import Response, HTTPException, UploadFile
+from fastapi.responses import StreamingResponse
+
+from sse import subscribe, unsubscribe
 
 from models import (
     ParentCreate,
@@ -363,3 +366,18 @@ def delete_appointment(id: int, response: Response):
     except KeyError:
         raise HTTPException(status_code=404, detail="Appointment not found")
     response.status_code = 204
+
+
+async def stream_calls():
+    """Stream random animal sounds via SSE."""
+    q = await subscribe()
+
+    async def event_generator():
+        try:
+            while True:
+                data = await q.get()
+                yield f"data: {data}\n\n"
+        finally:
+            unsubscribe(q)
+
+    return StreamingResponse(event_generator(), media_type="text/event-stream")