private async  IAsyncEnumerable<(string docID,string ki)> SaveToLocalDataOutputDocsAsync()
   { 
      var сlient = _httpClientFactory.CreateClient("client");
	await foreach (var doc in GetDocsNumberAsync())
	{
	  using var docStream = await gisMtClient.GetStreamAsync($"getDoc/{doc}");
	  using JsonDocument jDocument = await JsonDocument.ParseAsync(docStream);
			  
	  ///заглушка, память забивается и без парсинга документа
	  yield return ("docID", "value");
        }
    }
    
   ///Получаем id документов
   private async IAsyncEnumerable<string> GetDocsNumberAsync()
    {
        var client = _httpClientFactory.CreateClient("client");
        using var docStream = await client.GetStreamAsync("url");

        using JsonDocument jDocument = await JsonDocument.ParseAsync(docStream);
        var root = jDocument.RootElement.GetProperty("results").EnumerateArray();

        foreach (var item in root)           
          yield return item.GetProperty("number").GetString();
    }

 public void ConfigureServices(IServiceCollection services)
        {
            services.AddHttpClient("fakeApiClient",c=> 
            {   
                c.BaseAddress = new Uri("https://jsonplaceholder.typicode.com/");
                c.DefaultRequestHeaders.Add("Accept", "application/json");
            });
        }

public async Task TestProcessAsync()
{
    for (int i = 0; i < 500; i++)
         {
            var client = _httpClientFactory.CreateClient("fakeApiClient");
            var req = await client.GetByteArrayAsync("comments");
            Console.WriteLine($"RequestNumber:{i}");
         }
}

public async Task TestProcessAsync()
{
    for (int i = 0; i < 500; i++)
         {
            var client = _httpClientFactory.CreateClient("fakeApiClient");
            var req = await client.GetByteArrayAsync("comments");
            Console.WriteLine($"RequestNumber:{i}");
         }
}

static async Task Main(string[] args)
        {
            var serviceCollection = new ServiceCollection();
            Configure(serviceCollection);
            var services = serviceCollection.BuildServiceProvider();

            var _httpClientFactory = services.GetRequiredService<IHttpClientFactory>();

            for (int i = 0; i < 500; i++)
            {
                var client = _httpClientFactory.CreateClient("fakeApiClient");
                var req = await client.GetByteArrayAsync("comments");
                Console.WriteLine($"RequestNumber:{i}");
            }
        }

        public static void Configure(IServiceCollection services)
        {
            services.AddHttpClient("fakeApiClient", c =>
            {
                c.BaseAddress = new Uri("https://jsonplaceholder.typicode.com/");
                c.DefaultRequestHeaders.Add("Accept", "application/json");
            });
        }

  [HttpGet("")]
        public async Task Get()
        {
            for (int i = 0; i < 120; i++)
            {
                var client = _httpClientFactory.CreateClient("fakeApiClient");
                var bytes = await client.GetByteArrayAsync("comments");
                Console.WriteLine($"RequestNumber:{i}");
            }
        }

  [HttpGet("")]
        public async Task Get()
        {
            for (int i = 0; i < 150; i++)
            {
                var client = _httpClientFactory.CreateClient("fakeApiClient");
                var bytes = await client.GetByteArrayAsync("comments");
                Console.WriteLine($"RequestNumber:{i}");
            }
        }

    for (int i = 0; i < 1000; i++)
            {
               using var response = await client.GetAsync("comments", HttpCompletionOption.ResponseHeadersRead);
                  using Stream streamToReadFrom = await response.Content.ReadAsStreamAsync();
                    using JsonDocument jDocument = await JsonDocument.ParseAsync(streamToReadFrom);

                    Console.WriteLine($"RequestNumber:{i}");
            }