langchain_community.graphs.memgraph_graph
.MemgraphGraph¶
- class langchain_community.graphs.memgraph_graph.MemgraphGraph(url: str, username: str, password: str, *, database: str = 'memgraph')[source]¶
Memgraph wrapper for graph operations.
- Security note: 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://python.langchain.com/docs/security for more information.
Create a new Memgraph graph wrapper instance.
Attributes
get_schema
Returns the schema of the Graph
get_structured_schema
Returns the structured schema of the Graph
Methods
__init__
(url, username, password, *[, database])Create a new Memgraph graph wrapper instance.
add_graph_documents
(graph_documents[, ...])Take GraphDocument as input as uses it to construct a graph.
query
(query[, params])Query Neo4j database.
Refreshes the Memgraph graph schema information.
- __init__(url: str, username: str, password: str, *, database: str = 'memgraph') None [source]¶
Create a new Memgraph graph wrapper instance.
- add_graph_documents(graph_documents: List[GraphDocument], include_source: bool = False) None ¶
Take GraphDocument as input as uses it to construct a graph.
- query(query: str, params: dict = {}) List[Dict[str, Any]] ¶
Query Neo4j database.