Support for is_streamed_request widh datadog (#14673)

Author: eycjur

litellm/integrations/datadog/datadog_llm_obs.py

@@ -498,6 +498,7 @@ def _get_dd_llm_obs_payload_metadata(
             "guardrail_information": standard_logging_payload.get(
                 "guardrail_information", None
             ),
+            "is_streamed_request": self._get_stream_value_from_payload(standard_logging_payload),
         }
 
         #########################################################
@@ -561,6 +562,31 @@ def _get_latency_metrics(
 
         return latency_metrics
 
+    def _get_stream_value_from_payload(self, standard_logging_payload: StandardLoggingPayload) -> bool:
+        """
+        Extract the stream value from standard logging payload.
+
+        The stream field in StandardLoggingPayload is only set to True for completed streaming responses.
+        For non-streaming requests, it's None. The original stream parameter is in model_parameters.
+
+        Returns:
+            bool: True if this was a streaming request, False otherwise
+        """
+        # Check top-level stream field first (only True for completed streaming)
+        stream_value = standard_logging_payload.get("stream")
+        if stream_value is True:
+            return True
+
+        # Fallback to model_parameters.stream for original request parameters
+        model_params = standard_logging_payload.get("model_parameters", {})
+        if isinstance(model_params, dict):
+            stream_value = model_params.get("stream")
+            if stream_value is True:
+                return True
+
+        # Default to False for non-streaming requests
+        return False
+
     def _get_spend_metrics(
         self, standard_logging_payload: StandardLoggingPayload
     ) -> DDLLMObsSpendMetrics:

tests/test_litellm/integrations/datadog/test_datadog_llm_observability.py

@@ -203,6 +203,9 @@ def test_cost_and_trace_id_integration(self, mock_env_vars, mock_response_obj):
             assert metadata["cache_hit"] is True
             assert metadata["cache_key"] == "test-cache-key-789"
 
+            # Test 4: Verify is_streamed_request is in metadata
+            assert metadata["is_streamed_request"] is True
+
     def test_cache_metadata_fields(self, mock_env_vars, mock_response_obj):
         """Test that cache-related metadata fields are correctly tracked"""
         with patch(