There is a missing mapping for account type "super-margin" in the AccountTypeConverter class.
Calling GetAccountsAsync() will produce the issue, assuming you have a super-margin account

Hi! I found some fields in WebSocket did not return with correct values :

1. Amount (should show order amount instead of 0)
2. CanceledAt (should show order canceling time instead of min Time)
3. Id (should show orderID instead of 0)
4. Price (shown when order is placed, but not shown when order is canceled)

Hi There,
Thank you for the good work done.

I've found that the ClientOrderID isn't been deserialized because of the different field name.

Following the screenshot comparing the return vs the Class.

Hi JKorf,
I got a crash when a socket on Huobi try to reconnect.
The stack I can collect is :
Unhandled exception. System.NullReferenceException: Object reference not set to an instance of an object.
at Huobi.Net.HuobiSymbolOrderBook.DoResyncAsync()
at CryptoExchange.Net.OrderBook.SymbolOrderBook.ResyncAsync()
at CryptoExchange.Net.OrderBook.SymbolOrderBook.b__68_2(TimeSpan time)
at System.Threading.Tasks.Task.<>c.b__139_1(Object state)
at System.Threading.ThreadPoolWorkQueue.Dispatch()

Before this, I got the following warning:

2021/10/04 16:48:58:734 | Warning | Huobi | Huobi order book icxbtc connection lost
2021/10/04 16:48:58:734 | Information | Huobi | Huobi order book icxbtc status changed: Synced => Reconnecting
2021/10/04 16:49:03:802 | Information | Huobi | Huobi order book icxbtc status changed: Reconnecting => Syncing

Any idea what goes wrong?

Eric

private static void GetAccountBalances(Huobi.Net.HuobiClient client)
{
client.SetApiCredentials("", ""); // Change to your credentials
var accounts = client.GetAccounts();

Sir, when i used in this way, i cann't got the right feedback information, error msg show as below:
"Error deserializing data"

how can i fix this?

Hello, and thank you very much for this C# component for accessing Huobi API.

I use the SubscribeToSymbolTickerUpdatesAsync function to get data from Huobi.

I receive data every 5 seconds.

I need to know if the Open and Close values are for 5-seconds candlesticks ?

Thanks.

For amount with value 1 serialized as 1.0 Huobi api returns order-orderamount-precision-error, order amount precision error, scale: 0

The issue is exist only for symbols with quantity step size 1 like elfbtc.

As a temporary fix, I replaced { "amount", amount } to { "amount", amount.ToString() }

When I use Websocket access to anonymous endpoints such as "SubscribeToKlineUpdatesAsync",it works well,but when I access to authenticated endpoints such as "SubscribeToOrderUpdatesAsync"、"SubscribeToAccountUpdatesAsync",the server response:
Authentication failed: Server error: No response from server 。
HuobiSocketClientOptions huobiSocketClientOptions = new HuobiSocketClientOptions()
{
ApiCredentials = new ApiCredentials(_apiKey, _apiSecret)
};
using (HuobiSocketClient huobiSocketClient = new HuobiSocketClient(huobiSocketClientOptions))
{
.......
}

I use the same key and secret access to HuobiClient(Rest),it works well.

I got a "SafeHandle cannot be null" error while trying to place 3 orders at a time.

System.ArgumentNullException
HResult=0x80004003
Message=SafeHandle cannot be null.
Source=System.Private.CoreLib
StackTrace:
at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument, ExceptionResource resource)
at System.StubHelpers.StubHelpers.SafeHandleAddRef(SafeHandle pHandle, Boolean& success)
at Interop.BCrypt.BCryptHashData(SafeBCryptHashHandle hHash, Byte& pbInput, Int32 cbInput, Int32 dwFlags)
at Internal.Cryptography.HashProviderCng.AppendHashData(ReadOnlySpan1 source) at Internal.Cryptography.HashProvider.AppendHashData(Byte[] data, Int32 offset, Int32 count) at System.Security.Cryptography.HMACSHA256.HashCore(Byte[] rgb, Int32 ib, Int32 cb) at System.Security.Cryptography.HashAlgorithm.ComputeHash(Byte[] buffer) at Huobi.Net.HuobiAuthenticationProvider.AddAuthenticationToParameters(String uri, String method, Dictionary2 parameters, Boolean signed) in K:\Huobi.Net\HuobiAuthenticationProvider.cs:line 51
at Huobi.Net.HuobiClient.ConstructRequest(Uri uri, String method, Dictionary2 parameters, Boolean signed) in K:\Huobi.Net\HuobiClient.cs:line 585 at CryptoExchange.Net.RestClient.<ExecuteRequest>d__241.MoveNext()

any advice? thank you.

the SubscribeToMarketDetailMergedUpdates has not been implemented?

In GetCurrenciesAndChainsAsync , the parameters dictionnary is lost, and the field TransactFeeWithdraw is missing in the response.

Hi!
Have you seen that symbols model was extended?
Here are the example:
{"base-currency":"powr","quote-currency":"eth","price-precision":8,"amount-precision":0,"symbol-partition":"innovation","symbol":"powreth","state":"online","value-precision":8,"min-order-amt":0.1,"max-order-amt":500000,"min-order-value":0.001}

As you can see here are couple of new fields:
"state":"online",
"value-precision":8,
"min-order-amt":0.1,
"max-order-amt":500000,
"min-order-value":0.001

I don't know what's the purpose of this fields, but maybe you can update HuobiSymbol class?

It does not seem to me that futures or swaps support is available, unless I missed it. Are there any plans for implementation? Or if available, any examples?

Hello JKorf,

initially let me take this opportunity to thank for the great work done.

While coding, I've noticed that the the websocket for best Bid/ask is missing.
https://huobiapi.github.io/docs/spot/v1/en/#best-bid-offer

Appreciate if it could be implemented.

Best Regards,

Huobi supports client-order-id parameter when placing new order, with new API releases.
https://huobiapi.github.io/docs/spot/v1/en/#change-log

Could you please add support ClientOrderId parameter to Requests and Responses in Huobi.Net

[Request] Placing New Order
https://huobiapi.github.io/docs/spot/v1/en/#place-a-new-order

[Request & Response] Placing Batch Orders
https://huobiapi.github.io/docs/spot/v1/en/#place-a-batch-of-orders

[Request] Cancelling an Order
https://huobiapi.github.io/docs/spot/v1/en/#submit-cancel-for-an-order-based-on-client-order-id

[Request & Response] Cancelling Multiple Orders
https://huobiapi.github.io/docs/spot/v1/en/#submit-cancel-for-multiple-orders-by-ids

[Response] Getting All Open Orders
https://huobiapi.github.io/docs/spot/v1/en/#get-all-open-orders

[Response] Getting Details for an Order
https://huobiapi.github.io/docs/spot/v1/en/#get-the-order-detail-of-an-order
https://huobiapi.github.io/docs/spot/v1/en/#get-the-order-detail-of-an-order-based-on-client-order-id

[Response] Getting Order History
https://huobiapi.github.io/docs/spot/v1/en/#search-past-orders
https://huobiapi.github.io/docs/spot/v1/en/#search-historical-orders-within-48-hours

Hi! Seems like I have failed to use the "SubscribeToOrderUpdates" function in socketClient because I could not find a place to authenticate myself like what I did in REST request

 using (var socketClient = new HuobiSocketClient())
                {
                    //Able to listen
                    socketClient.SubscribeToMarketKlineUpdates("ethusdt", HuobiPeriod.FiveMinutes, data =>
                    {
                        Console.WriteLine("Received kline update. Last price: " + data.Close);

                    });

                    //Unable to listen
                    socketClient.SubscribeToOrderUpdates(data =>
                    {
                        Console.WriteLine("Received order update. Last price: " + data.ToString());
                    });
                    Console.ReadLine();
                }

Is the Authentication in socketClient missing, or is there any problem with my code?

Thanks,!

Hi,
The returning of GetTickers aren't bringing some fields.

It should return the following structure {"symbol":"creusdt","open":0.002164,"high":0.00233,"low":0.002141,"close":0.002273,"amount":1.907087512791328E8,"vol":421097.89436649525,"count":5083,"bid":0.002273,"bidSize":105032.78,"ask":0.002275,"askSize":880000.0}

and it's returning the following fields only {
  Amount | 67657173.06086831 |
  Close | 0.0000003189 |
  High | 0.0000003441 |
  Low | 0.0000002916 |
  Open | 0.0000003317 |
  Symbol | "tnbbtc" |
  TradeCount | 4341 |
  Volume | 21.692119019828027 |
}

Maybe you could update that class ?

Unhandled Exception: System.AggregateException: One or more errors occurred. (One or more errors occurred. (Object reference not set to an instance of an object.)) ---> System.AggregateException: One or more errors occurred. (Object reference not set to an instance of an object.) ---> System.NullReferenceException: Object reference not set to an instance of an object.
at CryptoExchange.Net.Sockets.BaseSocket.b__72_0()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown ---
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)
--- End of stack trace from previous location where exception was thrown ---
at CryptoExchange.Net.Sockets.BaseSocket.Close()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at CryptoExchange.Net.Sockets.BaseSocket.b__75_5()
at System.Threading.Tasks.Task1.InnerInvoke() at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location where exception was thrown --- at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot) --- End of stack trace from previous location where exception was thrown --- at CryptoExchange.Net.Sockets.BaseSocket.Connect() at CryptoExchange.Net.SocketClient.ConnectSocket(SocketSubscription socketSubscription) at Huobi.Net.HuobiSocketClient.CreateAndConnectSocket[T](Boolean authenticate, Boolean sub, Action1 onMessage) in K:\test\Huobi.Net\HuobiSocketClient.cs:line 630
at Huobi.Net.HuobiSocketClient.Subscribe[T](HuobiRequest request, Action1 onData) in K:\test\Huobi.Net\HuobiSocketClient.cs:line 447 at Huobi.Net.HuobiSocketClient.SubscribeToMarketDepthUpdatesAsync(String symbol, Int32 mergeStep, Action1 onData) in K:\test\Huobi.Net\HuobiSocketClient.cs:line 162
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at Huobi.Net.HuobiSocketClient.SubscribeToMarketDepthUpdates(String symbol, Int32 mergeStep, Action1 onData) in K:\test\Huobi.Net\HuobiSocketClient.cs:line 142
at ConsoleApp1.OrderR.InitWSClient()
at ConsoleApp1.OrderR.Run()
at ConsoleApp1.Program.Main(String[] args)

Hello,

your forgot .ConfigureAwait(false); in GetSymbolsAsync()

Regards,
Adrien

Currently this three methods are private. So we cannot create a class derived from HuobiClient that use them.
If you change the protection to protected , it will be possible to create a class derived from HuobiClient that implement other end-points, like https://api.huobi.pro/v2/account/deposit/address.

It is could be good to add ? after decimal in all field of HuobiMarketData.
Because some times null is returned

The Huobi Russia has another API URL
https://www.huobi.com.ru/api

The library can't make valid signature for this URL.
Because you should remove "/api" part of path.

I made some changes in the HuobiAuthenticationProvider class and it works fine.

var absolutePath = uriObj.AbsolutePath; if (absolutePath.StartsWith("/api")) absolutePath = absolutePath.Substring(4); signData += absolutePath + "\n";

Hi, @JKorf

I've an multithread application using Huobi.Net package.

I load main thread (windows service main thread), then I set RateLimitOptions via static way as below:

this.HuobiNetClientOptions = new Huobi.Net.HuobiClientOptions() { RateLimiters = new List<CryptoExchange.Net.Interfaces.IRateLimiter> { new CryptoExchange.Net.RateLimiter.RateLimiterTotal(60, TimeSpan.FromSeconds(10)), }, RateLimitingBehaviour = CryptoExchange.Net.Objects.RateLimitingBehaviour.Wait, RequestTimeout = TimeSpan.FromSeconds(30), }; Huobi.Net.HuobiClient.SetDefaultOptions(this.HuobiNetClientOptions); this.HuobiNetClient = new Huobi.Net.HuobiClient();

And I start 6 threads too and these threads uses HuobiClient in main thread. So I use same object for all threads. I use only getting klines method in API. Huobi allows 100 request in 10 seconds, Even I set for 60 requests I got rate limit error.

By the way, I use your Binance.Net package in same method and I dont get rate limit error in Binance.

Could you please check it?

12:21:16.85[165566]DEBUG:[Huobi] API: 2019/05/29 12:21:10:653 | Info | Socket 572 error: System.IO.IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
at System.Net.Sockets.Socket.BeginReceive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, AsyncCallback callback, Object state)
at System.Net.Sockets.NetworkStream.BeginRead(Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)
--- End of inner exception stack trace ---
at System.Net.Security._SslStream.EndRead(IAsyncResult asyncResult)
at SuperSocket.ClientEngine.AuthenticatedStreamTcpSession.OnDataRead(IAsyncResult result)

12:21:16.85[166200]DEBUG:[Huobi] API: 2019/05/29 12:21:12:568 | Info | Socket 572 error: System.IO.IOException: Unable to write data to the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
at System.Net.Sockets.Socket.BeginSend(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, AsyncCallback callback, Object state)
at System.Net.Sockets.NetworkStream.BeginWrite(Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)
--- End of inner exception stack trace ---
at System.Net.Sockets.NetworkStream.BeginWrite(Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)
at System.Net.Security._SslStream.StartWriting(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.Security._SslStream.ProcessWrite(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.Security._SslStream.BeginWrite(Byte[] buffer, Int32 offset, Int32 count, AsyncCallback asyncCallback, Object asyncState)

12:21:19.84[157352]FATAL:UnhandledException:
System.NullReferenceException: Object reference not set to an instance of an object.
at WebSocket4Net.Protocol.DraftHybi10Processor.SendHandshake(WebSocket websocket)
at SuperSocket.ClientEngine.AuthenticatedStreamTcpSession.OnAuthenticatedStreamConnected(AuthenticatedStream stream)
at SuperSocket.ClientEngine.SslStreamTcpSession.OnAuthenticated(IAsyncResult result)
at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
at System.Net.Security.SslState.FinishHandshake(Exception e, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.WriteCallback(IAsyncResult transportResult)
at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Net.ContextAwareResult.Complete(IntPtr userToken)
at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

Huobi supports 4Hours Klines. can you add please?

HuobiEnums.cs
public enum HuobiPeriod { OneMinute, FiveMinutes, FifteenMinutes, ThirtyMinutes, OneHour, FourHour, OneDay, OneWeek, OneMonth, OneYear }

and
PeriodConverter.cs
protected override List<KeyValuePair<HuobiPeriod, string>> Mapping => new List<KeyValuePair<HuobiPeriod, string>> { new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.OneMinute, "1min"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.FiveMinutes, "5min"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.FifteenMinutes, "15min"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.ThirtyMinutes, "30min"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.OneHour, "60min"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.FourHour, "4hour"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.OneDay, "1day"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.OneWeek, "1week"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.OneMonth, "1mon"), new KeyValuePair<HuobiPeriod, string>(HuobiPeriod.OneYear, "1year") };

in the method SubscribeToPartialOrderBookUpdates100MilisecondAsync the base address used is baseAddressMbp-"wss://api.huobi.pro/feed", but should be BaseAddress-"wss://api.huobi.pro/ws"
Cheers

These classes contain the same information.

Hello,

All placeOrder have to change long to long?
example:
Task<WebCallResult > PlaceOrderAsync(
to
Task<WebCallResult<long? > > PlaceOrderAsync(

Because Error Serialized if Huobi send an error message

Here is the codes I used:

            var wsClient = new HuobiSocketClient(new HuobiSocketClientOptions()
            {
                ApiCredentials = new ApiCredentials(apiKey, apiSecret),
                Proxy = new ApiProxy("http://127.0.0.1", 8080);
            });


            await wsClient.SubscribeToOrderBookUpdatesAsync(PublicStatic.robotOptions.Symbol, 0, data =>
            {
                _logger.LogInformation($"[WS] Subscribe to order book updates");              
            });

I'm experienced with binance and kucoin implementations, but trying to integrate Huobi.

client.SubscribeToSymbolTickerUpdatesAsync returns HuobiSymbolDatas and those tickers don't have ask/bids. I am not able to specify a coin name as the example here shows. Am I missing how to subscribe to specific tickers w/ ask/bid or is the wrapper missing it?

Hi JKorf,
with the latest version, you changed the code in the method SubscribeToOrderUpdatesAsync line 266 from:
var eventType = (string) data.Data["data"]["eventType"];

to
if (data.Data["data"] == null || data.Data["eventType"] == null)

Unfortunately, the eventType is not directely under Data.
I think the correct test is

          if (data.Data["data"] == null || data.Data["data"]["eventType"] == null)

Do you agree?

Eric

Hi,

i know you're time is limited and all that, but could you add the websocket for liquidation_orders?

https://huobiapi.github.io/docs/dm/v1/en/#subscribe-liquidation-order-data-no-authentication-sub

thanks in advance <3

It generates MissingMethodException if I try to connect.

Hi @JKorf

I had rate limit problems before, I got rate limit errors even I use proper limits. I talked with Huobi Technical Team and they recommended to use api keys even public data requests. I downloaded your huobi reposity and tried signed public requests. for example getklines. and woowww, it works.

I am sure many people suffer from this problem and they cant reach huobi technical team. Is it possible to add an option in huobiclientoptions as below
"If api credentials are exist, send signed requests for public endpoints"

Have a nice day.

can you help me?

Hi JKorf,

Is It compatible with other your libraries?

No percentage change in SubscribeToSymbolDetailUpdatesAsync
How can I get ?

Hello!
I'm using Huobi. Net v1.0.1 and it seems like filters in method GetOrdersAsync don't work.

I have 2 orders in my history
id ...52783 and ...54950
Here is my code:
long? startOrderId = null; var lastHuobiResult = await client.GetOrdersAsync(symbol, Enum.GetValues(typeof(HuobiOrderState)).Cast<HuobiOrderState>(), null, null, null, startOrderId, limit);
when I'm setting startOrderId > firstHistoryOrder.Id: I'm getting first history order

Then I tried another approach:
DateTime startDate = DateTime.MinValue; DateTime finishDate = DateTime.MaxValue; var lastHuobiResult = await client.GetOrdersAsync(symbol, Enum.GetValues(typeof(HuobiOrderState)).Cast<HuobiOrderState>(), null, startDate, finishDate, null, limit);

I'm tying to set my startDate > than FinishedAt date of my first history order. And I'm also getting first history order. Even is my startDate grater then FinishedAt more than 100ms.

Is this issue related to library or to exchange?

Hi,
according to the api-doc, there is a liquidation websocket available.

Somehow i couldn't find the function to subscribe to that websocket, like i did in binance.net or bitmex.net :)
How is it working in here?

Kind regards and thanks in advance for help
Amannda

I try to get account history filtered by transaction types. My request:var task = client.GetAccountHistoryAsync(acc.Id, startTime: DateTime.Now.AddDays(-30), transactionTypes: new List<HuobiTransactionType> { HuobiTransactionType.DepositWithdraw });.
As a result i've got a error: Server error: base-argument-type-enum-unsupported, base argument type unsupported {0}

about huobiclient ，when i call GetBalancesAsync I got an error:
Cannot map enum. Type: Huobi.Net.Objects.HuobiBalanceType, Value: loan
2019/06/27 21:59:24:916 | Error | Deserialize JsonSerializationException: Error setting value to 'Type' on 'Huobi.Net.Objects.HuobiBalance'.. Received data:
{
"status": "ok",
"data": {
"id": 3474679,
"type": "margin",
"state": "working",
"list": [
{
"currency": "btc",
"type": "trade",
"balance": "0.0000000062984"
},
{
"currency": "btc",
"type": "frozen",
"balance": "0"
},
{
"currency": "btc",
"type": "loan",
"balance": "0"
},
{
"currency": "btc",
"type": "interest",
"balance": "0"
},

the type include loan and interest
Maybe you should add these two types to the HuobiBalanceType .

thank you.

Hi there,

First I'd like to cheer for the great work done.

When sending a request trough the SocketClient, if I get a ping message from Huobi before the message itself from the request, the variable "result.Data" return null.

Is there any treatment I can do in order to avoid that ?

Best Regards,

Hello Jkorf,

There's this new version of websocket for Asset and Order that I couldn't find at the library
https://huobiapi.github.io/docs/spot/v1/en/#websocket-asset-and-order-v2

Could that be implemented ?

I Get this error when i try to access authenticated endpoints.
Server error: api-signature-not-valid, Signature not valid: Incorrect Access key [Access key错误]
my Api Key and secret key is correct.

for some reasons, i hope to reconnect the websocket client…… is there a quick way to implement such a function rather than close and resubscribe?

Hi @JKorf ,
the GetHistoryOrdersAsync api returns an IEnumerable of HuobiOrder. But for pagination purpose, a next-time is also returned by the server, when the query return to much data. Unfortunately, this field is not part of the data field, but after.
Here a sample : {"status":"ok","data":[{"id":180316741408065,"symbol":"zenbtc","account-id":12156447,"client-order-id":"","amount":"4.760000000000000000","price":"0.000419830000000000","created-at":1609685999833,"type":"sell-limit","field-amount":"0.0","field-cash-amount":"0.0","field-fees":"0.0","finished-at":1609686002967,"source":"spot-api","state":"canceled","canceled-at":1609686002959}, .... ],"next-time":1609684257688}.
What is the best way to implement this?
I can change the return value of the API to return an object with this field and an IEnumerable. Something like GetTickersAsync
Do you have a better idea?

Thanks.
Eric

Hi!
Accordingly to recent Huobi updates there are several problems:

1. In order/orders api call parameter symbol is not required any more. In official api docs this parameter is set as required, but if you'll look at the site there are call to orders/orders without symbol. Screenshot:
   
   It's also tested by me. This api call works without symbol.
2. In orders/orders api call parameter state doesn't work correctly any more. If I set only Filled or only Canceled state it works as expected. But if I set Filled, Canceled and any other state as array, the call will response only with Filled orders. Maybe this problem is caused by encoding comma separator to hexadecimal value but I'm not shure.
3. Accordingly to changelog message from 2019.04.29 20:30 there are new endpoint for history orders order/history. Would be nice to have it in library. Also order/orders seems to be deprecated in the future.

I got the following error message with these codes:

    var socketClient = new HuobiSocketClient();
            // HuobiSocketClient.SetDefaultOptions(new HuobiSocketClientOptions() { ApiCredentials = new ApiCredentials("", ""), });
            Console.WriteLine(socketClient.BaseAddress);
            socketClient.SubscribeToMarketKlineUpdates("btcusdt", HuobiPeriod.FiveMinutes, data =>
            {
                Console.WriteLine("Received kline update. Last price: " + data.Close);
            });

System.AggregateException
HResult=0x80131500
Message=One or more errors occurred.
Source=System.Private.CoreLib
StackTrace:
at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at Huobi.Net.HuobiSocketClient.SubscribeToMarketKlineUpdates(String symbol, HuobiPeriod period, Action1 onData) in K:\Huobi.Net-master\Huobi.Net-master\Huobi.Net\HuobiSocketClient.cs:line 93
at ConsoleApp1.Program.Main(String[] args) in K:\Huobi.Net-master\Huobi.Net-master\ConsoleApp1\Program.cs:line 15

内部异常 1:
AggregateException: One or more errors occurred.

内部异常 2:
NullReferenceException: Object reference not set to an instance of an object.

any idea? thanks