* Fix: Add shared_session to all_litellm_params to prevent JSON serialization error
The shared_session parameter (aiohttp.ClientSession) was being passed through
to provider API calls, causing "Object of type ClientSession is not JSON
serializable" errors during embedding requests.
Added shared_session to the all_litellm_params list so it's properly filtered
out as a LiteLLM-internal parameter and not passed to the provider's API.
* Fix: Add shared_session support for embedding calls with connection pooling
The shared_session parameter was not being properly handled in embedding calls,
causing it to be passed through to provider API requests where it's not needed.
Changes:
- Added shared_session to all_litellm_params to filter it from provider API request body
- Extract shared_session in main embedding() function and pass it explicitly
- Updated OpenAI embedding handlers (embedding() and aembedding()) to accept shared_session
- Pass shared_session to _get_openai_client for HTTP client creation
This enables proper connection pooling for embedding requests when shared_session
is provided, improving performance for high-throughput scenarios.
* test: add regression test for shared_session in embedding calls
Add comprehensive test to prevent JSON serialization errors when using
shared_session.
The test verifies two critical aspects:
1. shared_session is in all_litellm_params to prevent "Object of type
ClientSession is not JSON serializable" errors
2. shared_session flows through the complete call chain across 6 layers:
- litellm.embedding()
- OpenAI.embedding/aembedding()
- _get_openai_client()
- AsyncHTTPHandler.create_client()
- _create_async_transport()
- _create_aiohttp_transport()
Similar to test_acompletion_session_reuse_e2e.py but focused on
embedding endpoints. Uses inspect.getsource() to verify the parameter
is not only accepted but actually passed through each layer.
Alexsander Hamir