8 Commits (30d02e3a349922e01e0dcee52ab5132dc2063f29)

Author	SHA1	Message	Date
Viktor Zhemchuzhnikov	507e46844e	Extend SQLChatMessageHistory (#9849) ... ### Description There is a really nice class for saving chat messages into a database - SQLChatMessageHistory. It leverages SqlAlchemy to be compatible with any supported database (in contrast with PostgresChatMessageHistory, which is basically the same but is limited to Postgres). However, the class is not really customizable in terms of what you can store. I can imagine a lot of use cases, when one will need to save a message date, along with some additional metadata. To solve this, I propose to extract the converting logic from BaseMessage to SQLAlchemy model (and vice versa) into a separate class - message converter. So instead of rewriting the whole SQLChatMessageHistory class, a user will only need to write a custom model and a simple mapping class, and pass its instance as a parameter. I also noticed that there is no documentation on this class, so I added that too, with an example of custom message converter. ### Issue N/A ### Dependencies N/A ### Tag maintainer Not yet ### Twitter handle N/A	1 year ago
Josh White	bc8cceebf7	Extend DynamoDBChatMessageHistory to support composite keys (#9896) ... - Description: Adds two optional parameters to the DynamoDBChatMessageHistory class to enable users to pass in a name for their PrimaryKey, or a Key object itself to enable the use of composite keys, a common DynamoDB paradigm. [AWS DynamoDB Key docs](https://aws.amazon.com/blogs/database/choosing-the-right-dynamodb-partition-key/) - Issue: N/A - Dependencies: N/A - Twitter handle: N/A --------- Co-authored-by: Josh White <josh@ctrlstack.com> Co-authored-by: Bagatur <baskaryan@gmail.com>	1 year ago
Tudor Golubenco	171b0b183b	Pre-release Xata version no longer required (#9915) ... Tiny PR: Since we've released version 1.0.0 of the python SDK, we no longer need to specify the pre-release version when pip installing.	1 year ago
Tudor Golubenco	dc30edf51c	Xata as a chat message memory store (#9719) ... This adds Xata as a memory store also to the python version of LangChain, similar to the [one for LangChain.js](https://github.com/hwchase17/langchainjs/pull/2217). I have added a Jupyter Notebook with a simple and a more complex example using an agent. To run the integration test, you need to execute something like: ``` XATA_API_KEY='xau_...' XATA_DB_URL="https://demo-uni3q8.eu-west-1.xata.sh/db/langchain" poetry run pytest tests/integration_tests/memory/test_xata.py ``` Where `langchain` is the database you create in Xata.	1 year ago
Aarav Borthakur	3f64b8a761	Integrate Rockset as a chat history store (#8940) ... Description: Adds Rockset as a chat history store Dependencies: no changes Tag maintainer: @hwchase17 This PR passes linting and testing. I added a test for the integration and an example notebook showing its use.	1 year ago
Joshua Carroll	e5fed7d535	Extend the StreamlitChatMessageHistory docs with a fuller example and… (#8774) ... Add more details to the [notebook for StreamlitChatMessageHistory](https://python.langchain.com/docs/integrations/memory/streamlit_chat_message_history), including a link to a [running example app](https://langchain-st-memory.streamlit.app/). Original PR: https://github.com/langchain-ai/langchain/pull/8497	1 year ago
Joshua Carroll	6705928b9d	Add StreamlitChatMessageHistory (#8497) ... Add a StreamlitChatMessageHistory class that stores chat messages in [Streamlit's Session State](https://docs.streamlit.io/library/api-reference/session-state). Note: The integration test uses a currently-experimental Streamlit testing framework to simulate the execution of a Streamlit app. Marking this PR as draft until I confirm with the Streamlit team that we're comfortable supporting it. --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	1 year ago
Bagatur	c8c8635dc9	mv module integrations docs (#8101)	1 year ago