How to insert json data into elasticsearch

I want to write the same c# code as the Python code below.
But there was an error. I don’t' know the reason.

python
'''
import json
import time

from elasticsearch import Elasticsearch
from elasticsearch.helpers import bulk

ES_ENDPOINT = "http://id:password@ip주소:9200"
es = Elasticsearch(ES_ENDPOINT, timeout=300, max_retries=10, retry_on_timeout=True)

def gendata():

    file = open('me.json')
    jsonString = json.load(file)

    keys = [
        key for key in jsonString
    ]

    print(keys)

    x = range(len(keys))

    start = time.time()

    i = 0

    for i in x:
        jsonArray = jsonString.get(keys[i])

        for list in jsonArray:
            yield {
                "_index": "jsoninsert_python2",
                "_source": {
                    keys[i] : list
                }
            }

        i = i + 1

    print("시간: {}초".format(time.time() - start))

bulk(es, gendata())

gendata()

'''

python results
python으로 했을때

c#
'''
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Elasticsearch.Net;
using Nest;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace jsonParsing
{
    class Program
    {
        public class IotDatabase
        {
            public string siteID { get; set; }
            public string bimID { get; set; }
            public string K { get; set; }
            public string V { get; set; }
        }

        static void Main(string[] args)
        {

            // 엘라스틱서치 연동
            var defaultIndex = "jsoninsert_c4";
            var pool = new SingleNodeConnectionPool(new Uri("http://id:password@ip주소:9200"));
            var settings = new ConnectionSettings(pool)
                .DefaultIndex(defaultIndex);
            var client = new ElasticClient(settings);

            // json 파싱
            String path = @"C:\Users\me.json";
            JObject obj = JObject.Parse(File.ReadAllText(path));

            // list 선언
            var list = new List<IotDatabase>();

            // 키 추출
            IList<string> keys = obj.Properties().Select(p => p.Name).ToList();

            var c = keys.Count();

            for (var i = 0; i < c; i++)
            {

                string k = keys[i];
                JToken v = (JToken)obj[keys[i]];
                JArray v1 = (JArray)v;

                foreach (var x in v1)
                {
                    var iotDatabase = new IotDatabase { 
                        //siteID = "DTAAS",
                        //bimID = "TestBIM",
                        K = k, 
                        V = x.ToString() 
                    };

                    list.Add(iotDatabase);
                }
            }


            // bulk 삽입
            var bulkAllObservable = client.BulkAll(list, b => b
                .Index("jsoninsert_c4")
                .BackOffTime("30s") // 재시도 간의 대기시간
                .BackOffRetries(2)
                .Size(100000) // 대량 요청 당 항목?
            )
            .Wait(TimeSpan.FromMinutes(15), next =>
            {
            });

            Console.ReadLine();

        }
    }
}

'''
c# results
c#으로 했을때_줄바꿈 문자 포함안되게 저장하고싶음.

I want to insert it so that it doesn't include line-switched characters like the Python result picture.

Please don't create multiple topics on the same question - json insert - Elastic Stack / Elasticsearch - Discuss the Elastic Stack