MT Cloud Tracking Fix (#3514)

backend/ee/onyx/utils/telemetry.py

@@ -1,3 +1,5 @@
+from typing import Any
+
 from posthog import Posthog
 
 from ee.onyx.configs.app_configs import POSTHOG_API_KEY
@@ -6,13 +8,27 @@ from onyx.utils.logger import setup_logger
 
 logger = setup_logger()
 
-posthog = Posthog(project_api_key=POSTHOG_API_KEY, host=POSTHOG_HOST)
+
+def posthog_on_error(error: Any, items: Any) -> None:
+    """Log any PostHog delivery errors."""
+    logger.error(f"PostHog error: {error}, items: {items}")
+
+
+posthog = Posthog(
+    project_api_key=POSTHOG_API_KEY,
+    host=POSTHOG_HOST,
+    debug=True,
+    on_error=posthog_on_error,
+)
 
 
 def event_telemetry(
-    distinct_id: str,
-    event: str,
-    properties: dict | None = None,
+    distinct_id: str, event: str, properties: dict | None = None
 ) -> None:
-    logger.info(f"Capturing Posthog event: {distinct_id} {event} {properties}")
-    posthog.capture(distinct_id, event, properties)
+    """Capture and send an event to PostHog, flushing immediately."""
+    logger.info(f"Capturing PostHog event: {distinct_id} {event} {properties}")
+    try:
+        posthog.capture(distinct_id, event, properties)
+        posthog.flush()
+    except Exception as e:
+        logger.error(f"Error capturing PostHog event: {e}")