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group_fqcd_jr/app/infrastructure/neo4j_graph_driver.py
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28 lines
1.0 KiB
Python

"""Bounded Neo4j adapter used only behind RelationshipService."""
import asyncio
from collections.abc import Sequence
from typing import Any
from neo4j import AsyncGraphDatabase
from app.core.config import Settings
class Neo4jGraphDriver:
def __init__(self, settings: Settings, *, timeout_seconds: float = 2.0) -> None:
self.settings = settings
self.timeout_seconds = timeout_seconds
self._driver: Any = None
async def execute_query(self, query: str, **parameters: Any) -> Sequence[Any]:
if self._driver is None:
self._driver = AsyncGraphDatabase.driver(
self.settings.neo4j_uri,
auth=(self.settings.neo4j_username, self.settings.neo4j_password),
)
async with asyncio.timeout(self.timeout_seconds):
async with self._driver.session(database=self.settings.neo4j_database) as session:
result = await session.run(query, parameters)
return [record.data() async for record in result]