SqliteSessionService not implemented but code exists

[jawherkh]

in google.adk.sessions.sqlite_service_session we can see the SqliteServiceSession exists but not yet implemented in init.py, did you guys forgot about it?

[surajksharma07]

@jawherkh SqliteSessionService is fully implemented in src/google/adk/sessions/sqlite_session_service.py and is already registered in the service registry (usable via sqlite:// URIs), but it's missing from the __init__.py exports.

This appears to be an oversight - it should be added to __all__ with lazy loading (like DatabaseSessionService) since it requires the optional aiosqlite dependency.

As a workaround, you can import it directly with from google.adk.sessions.sqlite_session_service import SqliteSessionService or use the service registry with sqlite://path/to/db.sqlite URIs.

The fix is straightforward: add SqliteSessionService to __all__ and add a lazy-loading clause in __getattr__() following the same pattern as DatabaseSessionService.

Thanks!

[jawherkh]

i ended up importing the class from google.adk.sessions.sqlite_session_service and it worked fine!

nevertheless i think it should be added to the corresponding files so we can safely import the sql class from google.adk.sessions just like the other classes.

thank you for your response!

[jawherkh]

i ended up importing the class from google.adk.sessions.sqlite_session_service and it worked fine!

nevertheless i think it should be added to the corresponding files so we can safely import the sql class from google.adk.sessions just like the other classes.

thank you for your response!

[surajksharma07]

@jawherkh Glad the workaround is working for you.

You're absolutely right that it should be properly exported for consistency with other session services.

Thanks!