use_neo4j_for_graphrag.md

1. Install Neo4j (please use 5.x version)
2. Install Neo4j GDS (graph data science) plugin
3. Start neo4j server
4. Get the NEO4J_URL, NEO4J_USER and NEO4J_PASSWORD
   • By default, NEO4J_URL is neo4j://localhost:7687 , NEO4J_USER is neo4j and NEO4J_PASSWORD is neo4j

Pass your neo4j instance to GraphRAG:

from nano_graphrag import GraphRAG
from nano_graphrag._storage import Neo4jStorage

neo4j_config = {
  "neo4j_url": os.environ.get("NEO4J_URL", "neo4j://localhost:7687"),
  "neo4j_auth": (
      os.environ.get("NEO4J_USER", "neo4j"),
      os.environ.get("NEO4J_PASSWORD", "neo4j"),
  )
}
GraphRAG(
  graph_storage_cls=Neo4jStorage,
  addon_params=neo4j_config,
)