Feat: add child parent chunking method in backend. (#11598)

### What problem does this PR solve?

#7996

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

api/apps/document_app.py

@@ -607,7 +607,7 @@ async def get_image(image_id):
 @login_required
 @validate_request("conversation_id")
 async def upload_and_parse():
-    files = await request.file
+    files = await request.files
     if "file" not in files:
         return get_json_result(data=False, message="No file part!", code=RetCode.ARGUMENT_ERROR)
 
@@ -705,3 +705,12 @@ async def set_meta():
         return get_json_result(data=True)
     except Exception as e:
         return server_error_response(e)
+
+@manager.route("/upload_info", methods=["POST"])  # noqa: F821
+async def upload_info():
+    files = await request.files
+    file = files['file'] if files and files.get("file") else None
+    try:
+        return get_json_result(data=FileService.upload_info(current_user.id, file, request.args.get("url")))
+    except Exception as e:
+        return  server_error_response(e)