Node#

class langchain_community.graph_vectorstores.base.Node[source]#

Bases: Serializable

Deprecated since version 0.3.21: See https://datastax.github.io/graph-rag/guide/migration/#from-langchain-graphvectorstore for migration instructions. It will be removed in langchain-community==0.5.

Node in the GraphVectorStore.

Edges exist from nodes with an outgoing link to nodes with a matching incoming link.

For instance two nodes a and b connected over a hyperlink https://some-url would look like:

[
    Node(
        id="a",
        text="some text a",
        links= [
            Link(kind="hyperlink", tag="https://some-url", direction="incoming")
        ],
    ),
    Node(
        id="b",
        text="some text b",
        links= [
            Link(kind="hyperlink", tag="https://some-url", direction="outgoing")
        ],
    )
]

param id: str | None = None#: Unique ID for the node. Will be generated by the GraphVectorStore if not set.

param links: list[Link] [Optional]#: Links associated with the node.

param metadata: dict [Optional]#: Metadata for the node.

param text: str [Required]#: Text contained by the node.

Examples using Node