Chain for question-answering against a graph by generating Cypher statements.
Make sure that the database connection uses credentials that are narrowly-scoped to only include necessary permissions. Failure to do so may result in data corruption or loss, since the calling code may attempt commands that would result in deletion, mutation of data if appropriately prompted or reading sensitive data if such data is present in the database.
The best way to guard against such negative outcomes is to (as appropriate) limit the permissions granted to the credentials used with this tool.
See https://docs.langchain.com/oss/python/security-policy for more information.
Chat message history stored in a Neo4j database.
Synchronous Neo4j checkpoint saver for LangGraph.
This class implements the BaseCheckpointSaver interface using Neo4j as the persistence backend with a proper graph model. It supports storing checkpoints, channel states, and pending writes using relationships for efficient traversal.
Asynchronous Neo4j checkpoint saver for LangGraph.
This class implements the BaseCheckpointSaver interface using Neo4j as the persistence backend with async support and a proper graph model. It supports storing checkpoints, channel states, and pending writes using relationships for efficient traversal.
Neo4j database wrapper for various graph operations.
Make sure that the database connection uses credentials that are narrowly-scoped to only include necessary permissions. Failure to do so may result in data corruption or loss, since the calling code may attempt commands that would result in deletion, mutation of data if appropriately prompted or reading sensitive data if such data is present in the database.
The best way to guard against such negative outcomes is to (as appropriate) limit the permissions granted to the credentials used with this tool.
See https://docs.langchain.com/oss/python/security-policy for more information.
Neo4j vector index.
To use, you should have the neo4j python package installed.
Neo4j implementation of LangGraph checkpoint saver.
