public async Task GetCandlesHistory_EmptyResponse_ReturnsEmptyArray()
{
const int fromSeconds = 1549490400;
const int toSeconds = 1549494000;
_fakeHttpMessageHandler.HandleRequestAsync = TestHelper.HandleQueryString(form =>
{
Assert.Equal("BTC_USDT", form["symbol"]);
Assert.Equal("1", form["resolution"]);
Assert.Equal(fromSeconds.ToString(CultureInfo.InvariantCulture), form["from"]);
Assert.Equal(toSeconds.ToString(CultureInfo.InvariantCulture), form["to"]);
});
_fakeHttpMessageHandler.ResponseMessage = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent("{\"s\":\"no_data\",\"nextTime\":1549488540}")
};
var request = new CandlesHistoryRequest
{
Pair = "BTC_USDT",
Resolution = Resolution.Minute,
From = DateTimeOffset.FromUnixTimeSeconds(fromSeconds),
To = DateTimeOffset.FromUnixTimeSeconds(toSeconds),
};
var candles = await _publicApi.GetCandlesHistoryAsync(request);
Assert.Empty(candles);
}
public async Task <Candle[]> GetCandlesHistoryAsync(CandlesHistoryRequest request, CancellationToken cancellationToken = default)
{
var jsonToken = await _client.GetAsync <JToken>("candles_history", request, cancellationToken);
_candleHistoryErrorHandler.HandleResponse(jsonToken);
var errorToken = ((JObject)jsonToken).GetValue("s", StringComparison.OrdinalIgnoreCase);
if (errorToken?.Type == JTokenType.String && string.Equals(errorToken.Value <string>(), "no_data", StringComparison.OrdinalIgnoreCase))
{
return(Array.Empty <Candle>());
}
var result = jsonToken.ToObject <CandlesHistory>(JsonHelper.Serializer);
return(result.Candles);
}
public async Task GetCandlesHistory()
{
const int fromSeconds = 1587844151;
const int toSeconds = 1587844532;
_fakeHttpMessageHandler.HandleRequestAsync = TestHelper.HandleQueryString(form =>
{
Assert.Equal("BTC_USD", form["symbol"]);
Assert.Equal("5", form["resolution"]);
Assert.Equal(fromSeconds.ToString(CultureInfo.InvariantCulture), form["from"]);
Assert.Equal(toSeconds.ToString(CultureInfo.InvariantCulture), form["to"]);
});
_fakeHttpMessageHandler.ResponseMessage = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent("{\"candles\":[{\"t\":1587844200000,\"o\":7546.6259,\"c\":7540.4937,\"h\":7546.6259,\"l\":7539.06212565,\"v\":0.46677045000000006},{\"t\":1587844500000,\"o\":7543.4013,\"c\":7543.3275,\"h\":7545,\"l\":7539.53903772,\"v\":0.65390688}]}")
};
var request = new CandlesHistoryRequest
{
Pair = "BTC_USD",
Resolution = Resolution.Minute5,
From = DateTimeOffset.FromUnixTimeSeconds(fromSeconds),
To = DateTimeOffset.FromUnixTimeSeconds(toSeconds),
};
var candles = await _publicApi.GetCandlesHistoryAsync(request);
Assert.Equal(2, candles.Length);
Assert.Equal(1587844200000, candles[0].Time.ToUnixTimeMilliseconds());
Assert.Equal(7546.6259m, candles[0].Open);
Assert.Equal(7540.4937m, candles[0].Close);
Assert.Equal(7546.6259m, candles[0].High);
Assert.Equal(7539.06212565m, candles[0].Low);
Assert.Equal(0.46677045000000006m, candles[0].Volume);
Assert.Equal(1587844500000, candles[1].Time.ToUnixTimeMilliseconds());
Assert.Equal(7543.4013m, candles[1].Open);
Assert.Equal(7543.3275m, candles[1].Close);
Assert.Equal(7545m, candles[1].High);
Assert.Equal(7539.53903772m, candles[1].Low);
Assert.Equal(0.65390688m, candles[1].Volume);
}
public async Task GetCandlesHistory_ErrorResponse_ThrowsExmoApiException(string response, int?code, string message)
{
const int fromSeconds = 1587844151;
const int toSeconds = 1587844532;
_fakeHttpMessageHandler.ResponseMessage = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(response)
};
var request = new CandlesHistoryRequest
{
Pair = "BTC_USD",
Resolution = Resolution.Minute5,
From = DateTimeOffset.FromUnixTimeSeconds(fromSeconds),
To = DateTimeOffset.FromUnixTimeSeconds(toSeconds),
};
var exception = await Assert.ThrowsAsync <ExmoApiException>(async() => await _publicApi.GetCandlesHistoryAsync(request));
Assert.Equal(code, exception.Code);
Assert.Equal(message, exception.Message);
}
public async Task <IActionResult> GetHistoryCandles([FromRoute] string assetPairId, [FromBody] CandlesHistoryRequest request)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState.ToApiError()));
}
IEnumerable <IFeedCandle> candles = await _feedCandlesRepository.GetCandlesAsync(
assetPairId,
request.Period.Value.ToDomainModel(),
isBuy : request.Type == PriceType.Bid,
from : request.DateFrom.Value,
to : request.DateTo.Value);
var response = new CandlesHistoryResponse()
{
AssetPair = assetPairId,
Period = request.Period.Value,
DateFrom = request.DateFrom.Value,
DateTo = request.DateTo.Value,
Type = request.Type.Value,
Data = candles.ToApiModel().ToList()
};
return(Ok(response));
}
