Session based chat message store

[mariosconsta]

Hello all!

I have a RAG system using Haystack with Milvus and Docling.

Everything is connected together using Open WebUI's Pipeline functionality for the front-end part.

After reading this tutorial, I've added the functionality to insert the conversation history into the LLMs context, which works wonderfully.

My only issue that, if the user creates a new chat, the conversation from the last chat will get loaded as well.

For example

chat_001

**User:** When was google Founded?

**LLM:** Google was founded ...

chat_002

**User:** What was my last question?

**LLM:** You last question was "When was google Founded?"

From Open WebUI we can get session_IDs, so it would be nice if we could control the InMemoryChatMessageStore with different session_ids, and load those instead of just saving chat messages.

Or at least have a way to clear the InMemoryChatMessageStore and load only the chat messages which are provided by Open WebUI as a dictionary.

[anakin87]

Hello...

We will probably work on improving memory management in the future.

Could you please add your request to this discussion (deepset-ai/haystack-experimental#75) so we can keep track of it?