Add support for dailyRoomProperties when calling /start using the development runner

CHANGELOG.md

@@ -160,6 +160,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- The development runner's `/start` endpoint now supports passing
+  `dailyRoomProperties` in the request body when `createDailyRoom` is true.
+  Properties are validated against the `DailyRoomProperties` type and passed to
+  Daily's room creation API.
+
 - `UserImageRawFrame` new fields `append_to_context` and `text`. The
   `append_to_context` field indicates if this image and text should be added to
   the LLM context (by the LLM assistant aggregator). The `text` field, if set,

src/pipecat/runner/run.py

@@ -570,6 +570,7 @@ def _setup_daily_routes(app: FastAPI):
 
         create_daily_room = request_data.get("createDailyRoom", False)
         body = request_data.get("body", {})
+        daily_room_properties_dict = request_data.get("dailyRoomProperties", None)
 
         bot_module = _get_bot_module()
 
@@ -584,9 +585,20 @@ def _setup_daily_routes(app: FastAPI):
             import aiohttp
 
             from pipecat.runner.daily import configure
+            from pipecat.transports.daily.utils import DailyRoomProperties
 
             async with aiohttp.ClientSession() as session:
-                room_url, token = await configure(session)
+                # Parse dailyRoomProperties if provided
+                room_properties = None
+                if daily_room_properties_dict:
+                    try:
+                        room_properties = DailyRoomProperties(**daily_room_properties_dict)
+                        logger.debug(f"Using custom room properties: {room_properties}")
+                    except Exception as e:
+                        logger.error(f"Failed to parse dailyRoomProperties: {e}")
+                        # Continue without custom properties
+
+                room_url, token = await configure(session, room_properties=room_properties)
                 runner_args = DailyRunnerArguments(room_url=room_url, token=token, body=body)
                 result = {
                     "dailyRoom": room_url,