From 01f3421052e16282e22080987770c46c39d0cbc0 Mon Sep 17 00:00:00 2001
From: Mark Backman <mark@daily.co>
Date: Tue, 4 Nov 2025 17:14:29 -0500
Subject: [PATCH] Fix: support request data in SmallWebRTC

---
 CHANGELOG.md                                          | 4 ++++
 src/pipecat/transports/smallwebrtc/request_handler.py | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0beaeab2f..c7b9ba07f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,6 +33,10 @@ reason")`.
 
 ### Fixed
 
+- Fixed an issue where the `SmallWebRTCRequest` dataclass in runner would scrub
+  arbitrary request data from client due to camelCase typing. This fixes data
+  passthrough for JS clients where `APIRequest` is used.
+
 - Fixed `GeminiLiveLLMService` session resumption after a connection timeout.
 
 - `GeminiLiveLLMService` now properly supports context-provided system
diff --git a/src/pipecat/transports/smallwebrtc/request_handler.py b/src/pipecat/transports/smallwebrtc/request_handler.py
index b2c02a03e..adbca920e 100644
--- a/src/pipecat/transports/smallwebrtc/request_handler.py
+++ b/src/pipecat/transports/smallwebrtc/request_handler.py
@@ -40,6 +40,14 @@ class SmallWebRTCRequest:
     request_data: Optional[Any] = None
 
 
+@classmethod
+def from_dict(cls, data: dict):
+    """Accept both snake_case and camelCase for the request_data field."""
+    if "requestData" in data and "request_data" not in data:
+        data["request_data"] = data.pop("requestData")
+    return cls(**data)
+
+
 @dataclass
 class IceCandidate:
     """The remote ice candidate object received from the peer connection.