[Bug]: ERR_RATE_UNAVAILABLE with Kraken

What is your BTCPay version?

I’m running BTCPay 1.6.6.

How did you deploy BTCPay Server?

https://github.com/btcpayserver/btcpayserver-docker

What happened?

BTCPay gives an error when trying to get exchange rates from Kraken (see Screenshot):

BTC_EUR | (ERR_RATE_UNAVAILABLE(kraken, BTC_EUR)) * (0.995, 1.005) XMR_EUR | (ERR_RATE_UNAVAILABLE(kraken, XMR_BTC) * ERR_RATE_UNAVAILABLE(kraken, BTC_EUR)) * (0.995, 1.005)

Getting the rates with curl works fine on the server:

# curl "https://api.kraken.com/0/public/Ticker?pair=XXBTZEUR,XXMRZEUR"
{"error":[],"result":{"XXBTZEUR":{"a":["23052.70000","4","4.000"],"b":["23052.60000","1","1.000"],"c":["23052.70000","0.00064988"],"v":["313.62198471","1165.18014950"],"p":["23302.98053","23480.07750"],"t":[7742,24326],"l":["23043.70000","23043.70000"],"h":["23461.00000","23759.10000"],"o":"23348.20000"},"XXMRZEUR":{"a":["160.89000000","3","3.000"],"b":["160.80000000","1","1.000"],"c":["160.82000000","0.17668000"],"v":["1963.85005144","3720.94757456"],"p":["165.23690132","164.58711410"],"t":[531,1339],"l":["160.82000000","160.82000000"],"h":["168.48000000","168.48000000"],"o":"164.18000000"}}}

How did you encounter this bug?

Creating an invoice failed after the upgrade.

Relevant log output

docker logs --tail 100 generated_btcpayserver_1
[...]
warn: PayServer:      Warning: Error while trying to load rates from cache
System.FormatException: Invalid currency pair
   at BTCPayServer.Rating.CurrencyPair.Parse(String str) in /source/BTCPayServer.Rating/CurrencyPair.cs:line 21
   at BTCPayServer.Services.Rates.BackgroundFetcherRateJsonConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) in /source/BTCPayServer.Rating/Providers/BackgroundFetcherRateProvider.cs:line 40
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, 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.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(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
   at BTCPayServer.Services.SettingsRepository.Deserialize[T](String value) in /source/BTCPayServer/Services/SettingsRepository.cs:line 72
   at BTCPayServer.Services.SettingsRepository.<>c__DisplayClass4_0`1.<<GetSettingAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at BTCPayServer.Services.SettingsRepository.<>c__DisplayClass4_0`1.<<GetSettingAsync>b__0>d.MoveNext() in /source/BTCPayServer/Services/SettingsRepository.cs:line 33
--- End of stack trace from previous location ---
   at Microsoft.Extensions.Caching.Memory.CacheExtensions.GetOrCreateAsync[TItem](IMemoryCache cache, Object key, Func`2 factory)
   at BTCPayServer.Services.SettingsRepository.GetSettingAsync[T](String name) in /source/BTCPayServer/Services/SettingsRepository.cs:line 29
   at BTCPayServer.HostedServices.RatesHostedService.TryLoadRateCache() in /source/BTCPayServer/HostedServices/RatesHostedService.cs:line 118
info: PayServer:      Starting payment request expiration watcher
info: Configuration:  Now listening on: http://0.0.0.0:49392
info: PayServer:      23 pending payment requests being checked since last run
info: PayServer:      BTC: Checking if any pending invoice got paid while offline...
info: PayServer:      BTC: 0 payments happened while offline
info: PayServer:      Connected to WebSocket of NBXplorer (BTC)
warn: PayServer:      Error while contacting exchange kraken: EQuery:Invalid asset pair
warn: PayServer:      Error while contacting exchange kraken: EQuery:Invalid asset pair
warn: PayServer:      Error while contacting exchange kraken: EQuery:Invalid asset pair
[...]

What browser do you use?

No response

Additional information

No response

Are you sure this is a bug report?

• I confirm this is a bug report

[Kukks]

fixed in https://github.com/btcpayserver/btcpayserver/commit/15e1169f6211f401e7a53ae4b576243bef565ca7

[Kukks]

This was fixed. Update to latest.

On Sun, Aug 21, 2022, 14:47 v ₿ @.***> wrote:

same error. In the setting I’ve setup Preferred Price Source coingeko however btcpay server keeps contacting contacting other exchanges resulting in 504 gateway time-out on the payment page.

2022-08-21 12:38:07.843 +00:00 [WRN] Error while contacting exchange coingecko: A task was canceled. 2022-08-21 12:38:07.845 +00:00 [WRN] Error while contacting exchange kraken: A task was canceled. 2022-08-21 12:38:37.844 +00:00 [WRN] Error while contacting exchange coingecko: A task was canceled. 2022-08-21 12:38:57.847 +00:00 [WRN] Error while contacting exchange kraken: A task was canceled. 2022-08-21 12:39:47.845 +00:00 [WRN] Error while contacting exchange coingecko: A task was canceled. 2022-08-21 12:39:47.845 +00:00 [WRN] Error while contacting exchange kraken: A task was canceled. 2022-08-21 12:39:57.852 +00:00 [WRN] Error while contacting exchange okex: APIRequest timeout 2022-08-21 12:40:37.846 +00:00 [WRN] Error while contacting exchange coingecko: A task was canceled. 2022-08-21 12:40:37.846 +00:00 [WRN] Error while contacting exchange kraken: A task was canceled. 2022-08-21 12:40:47.848 +00:00 [WRN] Error while contacting exchange okex: APIRequest timeout 2022-08-21 12:41:07.845 +00:00 [WRN] Error while contacting exchange coingecko: A task was canceled. 2022-08-21 12:41:07.845 +00:00 [WRN] Error while contacting exchange kraken: A task was canceled. 2022-08-21 12:41:37.844 +00:00 [WRN] Error while contacting exchange okex: APIRequest timeout

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