fix(decorator): trace falsy output values (#1010)

tux-type · web-flow · commit 9ff982ea5d5e · 2024-11-27T09:41:22.000+01:00
diff --git a/langfuse/decorators/langfuse_decorator.py b/langfuse/decorators/langfuse_decorator.py
@@ -452,7 +452,7 @@ def _handle_call_result(
                 # Objects are later serialized again so deserialization is necessary here to avoid unnecessary escaping of quotes.
                 json.loads(
                     json.dumps(
-                        result if result and capture_output else None,
+                        result if result is not None and capture_output else None,
                         cls=EventSerializer,
                     )
                 )

Original file line number	Diff line number	Diff line change
`@@ -452,7 +452,7 @@ def _handle_call_result(`
`452`	`452`	`# Objects are later serialized again so deserialization is necessary here to avoid unnecessary escaping of quotes.`
`453`	`453`	`json.loads(`
`454`	`454`	`json.dumps(`
`455`		`- result if result and capture_output else None,`
	`455`	`+ result if result is not None and capture_output else None,`
`456`	`456`	`cls=EventSerializer,`
`457`	`457`	`)`
`458`	`458`	`)`