Get exchange info method not working

[Matasx]

Describe the bug Every time I call this method UsdFuturesApi.ExchangeData.GetExchangeInfoAsync I get success = false. This is the error as presented in the error response:

{Deserialize Unknown Exception: ArgumentNullException - Value cannot be null. (Parameter 'item')
   at System.Collections.Generic.List`1.System.Collections.IList.Add(Object item)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Deserialize[T](JsonReader reader)
   at CryptoExchange.Net.BaseApiClient.DeserializeAsync[T](Stream stream, JsonSerializer serializer, Nullable`1 requestId, Nullable`1 elapsedMilliseconds)
 [Data only available in Trace LogLevel]}

To Reproduce Call await client.UsdFuturesApi.ExchangeData.GetExchangeInfoAsync()

Expected behavior Success is true and data are returned.

Debug logging This is error that get's logged to debug console 2023/09/06 09:04:58:368 | Warning | Cannot map enum value. EnumType: Binance.Net.Enums.TimeInForce, Value: GTD, Known values: GTC, IOC, FOK, GTX, GTE_GTC. If you think GTD should added please open an issue on the Github repo. - Not sure if this is the cause of the issue, but it is the only one logged.

Though as per Binance changelog the GTD was added yesterday. (https://binance-docs.github.io/apidocs/futures/en/#change-log) Price Match/ Good Till Date TIF/ Breakeven Price(detail in 2023-08-29 changelog) are released at 2023-09-05.

This is example payload from the symbols collection in the json as returned by the Binance server.

    {
      "symbol": "MASKUSDT",
      "pair": "MASKUSDT",
      "contractType": "PERPETUAL",
      "deliveryDate": 4133404800000,
      "onboardDate": 1626418800000,
      "status": "TRADING",
      "maintMarginPercent": "2.5000",
      "requiredMarginPercent": "5.0000",
      "baseAsset": "MASK",
      "quoteAsset": "USDT",
      "marginAsset": "USDT",
      "pricePrecision": 4,
      "quantityPrecision": 0,
      "baseAssetPrecision": 8,
      "quotePrecision": 8,
      "underlyingType": "COIN",
      "underlyingSubType": [
        "Privacy"
      ],
      "settlePlan": 0,
      "triggerProtect": "0.1000",
      "liquidationFee": "0.020000",
      "marketTakeBound": "0.10",
      "maxMoveOrderLimit": 10000,
      "filters": [
        {
          "filterType": "PRICE_FILTER",
          "maxPrice": "100000.0000",
          "tickSize": "0.0010",
          "minPrice": "0.0040"
        },
        {
          "stepSize": "1",
          "minQty": "1",
          "maxQty": "5000000",
          "filterType": "LOT_SIZE"
        },
        {
          "filterType": "MARKET_LOT_SIZE",
          "minQty": "1",
          "stepSize": "1",
          "maxQty": "40000"
        },
        {
          "filterType": "MAX_NUM_ORDERS",
          "limit": 200
        },
        {
          "filterType": "MAX_NUM_ALGO_ORDERS",
          "limit": 10
        },
        {
          "notional": "5",
          "filterType": "MIN_NOTIONAL"
        },
        {
          "multiplierUp": "1.1000",
          "multiplierDecimal": "4",
          "filterType": "PERCENT_PRICE",
          "multiplierDown": "0.9000"
        }
      ],
      "orderTypes": [
        "LIMIT",
        "MARKET",
        "STOP",
        "STOP_MARKET",
        "TAKE_PROFIT",
        "TAKE_PROFIT_MARKET",
        "TRAILING_STOP_MARKET"
      ],
      "timeInForce": [
        "GTC",
        "IOC",
        "FOK",
        "GTX",
        "GTD"
      ]
    },

[Br1ck-Top]

Not only you have this problem, Binance changed futures accounts

[JKorf]

Thanks for the report, I've fixed this in version 9.1.2 which should be available in a few minutes

[Matasx]

Thanks for the report, I've fixed this in version 9.1.2 which should be available in a few minutes

Thanks a ton. The issue is fixed!