Neptune Database Graph Store

Topics

• Overview
• Creating a Neptune Database graph store
  • Connecting to Neptune via a proxy

Overview

You can use Amazon Neptune Database as a graph store. The lexical-graph requires Neptune engine version 1.4.1.0 or later.

Creating a Neptune Database graph store

Use the GraphStoreFactory.for_graph_store() static factory method to create an instance of a Neptune Database graph store.

To create a Neptune Database graph store (engine version 1.4.1.0 or later), supply a connection string that begins neptune-db://, followed by an endpoint:

from graphrag_toolkit.lexical_graph.storage import GraphStoreFactory

neptune_connection_info = 'neptune-db://mydbcluster.cluster-123456789012.us-east-1.neptune.amazonaws.com:8182'

with GraphStoreFactory.for_graph_store(neptune_connection_info) as graph_store:
    ...

Connecting to Neptune via a proxy

To connect to Neptune via a proxy (e.g. a load balancer), you must supply a config dictionary to the GraphStoreFactory.for_graph_store() factory method, with a proxies dictionary of proxy servers to use by protocol or endpoint:

from graphrag_toolkit.lexical_graph.storage import GraphStoreFactory

neptune_connection_info = 'neptune-db://mydbcluster.cluster-123456789012.us-east-1.neptune.amazonaws.com:8182'

config = {
    'proxies': {
        'http': 'http://proxy-hostname:80'
    }
}

with GraphStoreFactory.for_graph_store(
        neptune_connection_info,
        config=config
    ) as graph_store:
    ...