mirror of
https://github.com/Azure-Samples/graphrag-accelerator.git
synced 2025-07-05 16:19:36 +00:00
54 lines
1.8 KiB
Python
54 lines
1.8 KiB
Python
# Copyright (c) Microsoft Corporation.
|
|
# Licensed under the MIT License.
|
|
|
|
from fastapi import (
|
|
APIRouter,
|
|
Depends,
|
|
HTTPException,
|
|
)
|
|
from fastapi.responses import StreamingResponse
|
|
|
|
from graphrag_app.logger.load_logger import load_pipeline_logger
|
|
from graphrag_app.utils.azure_clients import AzureClientManager
|
|
from graphrag_app.utils.common import (
|
|
desanitize_name,
|
|
sanitize_name,
|
|
validate_index_file_exist,
|
|
)
|
|
|
|
graph_route = APIRouter(
|
|
prefix="/graph",
|
|
tags=["Graph Operations"],
|
|
)
|
|
|
|
|
|
@graph_route.get(
|
|
"/graphml/{container_name}",
|
|
summary="Retrieve a GraphML file of the knowledge graph",
|
|
response_description="GraphML file successfully downloaded",
|
|
)
|
|
async def get_graphml_file(sanitized_container_name: str = Depends(sanitize_name)):
|
|
# validate graphml file existence
|
|
azure_client_manager = AzureClientManager()
|
|
graphml_filename = "graph.graphml"
|
|
blob_filepath = f"output/{graphml_filename}" # expected file location of the graph based on the workflow
|
|
validate_index_file_exist(sanitized_container_name, blob_filepath)
|
|
try:
|
|
blob_client = azure_client_manager.get_blob_service_client().get_blob_client(
|
|
container=sanitized_container_name, blob=blob_filepath
|
|
)
|
|
blob_stream = blob_client.download_blob().chunks()
|
|
return StreamingResponse(
|
|
blob_stream,
|
|
media_type="application/octet-stream",
|
|
headers={"Content-Disposition": f"attachment; filename={graphml_filename}"},
|
|
)
|
|
except Exception:
|
|
logger = load_pipeline_logger()
|
|
original_container_name = desanitize_name(sanitized_container_name)
|
|
logger.error("Could not fetch graphml file")
|
|
raise HTTPException(
|
|
status_code=500,
|
|
detail=f"Could not fetch graphml file for '{original_container_name}'.",
|
|
)
|