fix: add guard for None metadata

CasperGN · CasperGN · commit 2479e64f139c · 2025-11-22T21:31:27.000-08:00
Signed-off-by: Casper Nielsen &lt;casper@diagrid.io&gt;
diff --git a/ext/dapr-ext-langgraph/dapr/ext/langgraph/dapr_checkpointer.py b/ext/dapr-ext-langgraph/dapr/ext/langgraph/dapr_checkpointer.py
@@ -109,6 +109,9 @@ def put(
             'has_writes': False,
         }
 
+        # Guard case where metadata is None
+        metadata = metadata or {}
+
         if all(key in metadata for key in ['source', 'step']):
             checkpoint_data['source'] = metadata['source']
             checkpoint_data['step'] = metadata['step']

Original file line number	Diff line number	Diff line change
`@@ -109,6 +109,9 @@ def put(`
`109`	`109`	`'has_writes': False,`
`110`	`110`	`}`
`111`	`111`
	`112`	`+ # Guard case where metadata is None`
	`113`	`+ metadata = metadata or {}`
	`114`	`+`
`112`	`115`	`if all(key in metadata for key in ['source', 'step']):`
`113`	`116`	`checkpoint_data['source'] = metadata['source']`
`114`	`117`	`checkpoint_data['step'] = metadata['step']`