fix: save sessions with camelCase aliases

GWeale · copybara-github · commit bf8b85da52ac · 2025-11-20T11:41:41.000-08:00
Make sure that the adk run --save_session writes session JSON using the Pydantic camelCase aliases (by_alias=True), matching ADK Web and keeping session files consistent Close #3558 Co-authored-by: George Weale <gweale@google.com> PiperOrigin-RevId: 834847209
diff --git a/src/google/adk/cli/cli.py b/src/google/adk/cli/cli.py
@@ -218,6 +218,8 @@ async def run_cli(
         session_id=session.id,
     )
     with open(session_path, 'w', encoding='utf-8') as f:
-      f.write(session.model_dump_json(indent=2, exclude_none=True))
+      f.write(
+          session.model_dump_json(indent=2, exclude_none=True, by_alias=True)
+      )
 
     print('Session saved to', session_path)

Original file line number	Diff line number	Diff line change
`@@ -218,6 +218,8 @@ async def run_cli(`
`218`	`218`	`session_id=session.id,`
`219`	`219`	`)`
`220`	`220`	`with open(session_path, 'w', encoding='utf-8') as f:`
`221`		`- f.write(session.model_dump_json(indent=2, exclude_none=True))`
	`221`	`+ f.write(`
	`222`	`+ session.model_dump_json(indent=2, exclude_none=True, by_alias=True)`
	`223`	`+ )`
`222`	`224`
`223`	`225`	`print('Session saved to', session_path)`