NoSQL database (MongoDB) checkpointer classes in langgraph

mike_plumbs

Is there an available checkpointer class using MongoDB in langgraph today? I've been searching for it for quite a while now to no avail. I can only see class langchain_postgres.checkpoint.PostgresCheckpoint from the documentation and the from langgraph.checkpoint.sqlite import SqliteSaver from the langgraph example .

Originally asked by JCm on Stack Exchange (stackoverflow) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

Have you found anything? There isn't one as far as I know. I was looking for the same thing but it seems like your best bet for now is to make a custom MongoDB Checkpointer. It looks doable but a bit trickier than making a custom MessageHistory or something. I might take a stab at it using the Beanie ODM if I get the time cause I'm already using Mongo for chat histories and would like to incorporate langgraph without running a separate db. If you find anything let (us) know. I'm sure others will run into the same thing. I'm also sure langchain will make a Mongo checkpointer at some point but even that might need to get modified for specific use cases. Like their MongoDBChatMessageHistory...

Full answer by longdistancerunner: https://stackoverflow.stackexchange.com/a/78517714 (CC BY-SA 4.0).

Need it done for your business? UphillTech.