public async static Task <Queue <decimal> > GetCCI(string symbol)
{
var avClient = new AlphaVantageCoreClient();
var ret = new Queue <decimal>(5);
var query = GetDefaultQueryDic(symbol);
query.Remove("series_type"); // not needed
JObject cciObj = await avClient.RequestApiAsync(API_KEY_ALPHA_VANTAGE, ApiFunction.CCI, query);
//error parsing
if (!cciObj.ContainsKey("Meta Data"))
{
throw new AlphaVantage.Net.Core.Exceptions.AlphaVantageException($"Error parsing json object. Got: {cciObj.ToString()}");
}
JToken cciDataObj = cciObj["Technical Analysis: CCI"];
foreach (var timeCCI in cciDataObj.Take(5))
{
decimal wow = timeCCI.First.First.First.Value <decimal>();
ret.Enqueue(wow);
}
return(ret);
}
public AlphaVantageTechIndicatorsClient(string apiKey)
{
if (string.IsNullOrWhiteSpace(apiKey))
{
throw new ArgumentNullException(nameof(apiKey));
}
_apiKey = apiKey;
_coreClient = new AlphaVantageCoreClient();
}
public AlphaVantageStocksClient(string apiKey, TimeSpan?requestTimeout = null)
{
if (string.IsNullOrWhiteSpace(apiKey))
{
throw new ArgumentNullException(nameof(apiKey));
}
_apiKey = apiKey;
_coreClient = new AlphaVantageCoreClient(timeout: requestTimeout);
_parser = new DataParser();
}
public AlphaVantageStocksClient(string apiKey)
{
if (string.IsNullOrWhiteSpace(apiKey))
{
throw new ArgumentNullException(nameof(apiKey));
}
_apiKey = apiKey;
_coreClient = new AlphaVantageCoreClient();
_parser = new StockDataParser();
}
public async Task CorrectRequestTest()
{
var function = ApiFunction.TIME_SERIES_INTRADAY;
var symbol = "AAPL";
var interval = "15min";
var query = new Dictionary <string, string>()
{
{ nameof(symbol), symbol },
{ nameof(interval), interval }
};
var client = new AlphaVantageCoreClient();
var response = await client.RequestApiAsync(ApiKey, function, query);
Assert.NotNull(response);
Assert.True(response.ContainsKey("Time Series (15min)"));
}
public async Task BadRequestTest()
{
var function = ApiFunction.TIME_SERIES_INTRADAY;
var symbol = "wrong_symbol"; // Bad request! No such symbol exist
var interval = "15min";
var query = new Dictionary <string, string>()
{
{ nameof(symbol), symbol },
{ nameof(interval), interval }
};
var client = new AlphaVantageCoreClient();
await Assert.ThrowsAsync <AlphaVantageException>(async() =>
{
await client.RequestApiAsync(ApiKey, function, query);
});
}
public async Task ValidationErrorTest()
{
var function = ApiFunction.TIME_SERIES_INTRADAY;
var symbol = "wrong_symbol"; // Bad request! No such symbol exist
var interval = "15min";
var query = new Dictionary <string, string>()
{
{ nameof(symbol), symbol },
{ nameof(interval), interval }
};
var client = new AlphaVantageCoreClient(new TestValidator());
var exception = await Assert.ThrowsAsync <AlphaVantageException>(async() =>
{
await client.RequestApiAsync(ApiKey, function, query);
});
Assert.Equal(TestValidator.ErrorMsg, exception.Message);
}
public async static Task <Queue <decimal> > GetRSI(string symbol)
{
var avClient = new AlphaVantageCoreClient();
var ret = new Queue <decimal>(5);
var query = GetDefaultQueryDic(symbol);
JObject rsiObj = await avClient.RequestApiAsync(API_KEY_ALPHA_VANTAGE, ApiFunction.RSI, query);
//error parsing
if (!rsiObj.ContainsKey("Meta Data"))
{
throw new AlphaVantage.Net.Core.Exceptions.AlphaVantageException($"Error parsing json object. Got: {rsiObj.ToString()}");
}
JToken rsiDataObj = rsiObj["Technical Analysis: RSI"];
foreach (var timeRsi in rsiDataObj.Take(5))
{
decimal wow = timeRsi.First.First.First.Value <decimal>();
ret.Enqueue(wow);
}
return(ret);
}
public async Task <StockSymbol> UpdateStockSymbolDataAsync(StockSymbol Symbol)
{
//String baseUrl = null;
String apiKey = null;
try
{
//baseUrl = _config.Configuration["AlphavantageBaseUrl"];
apiKey = _config.Configuration["AlphavantageApiKey"];
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
throw;
}
if (String.IsNullOrWhiteSpace(apiKey))
{
throw new Exception("AlphavantageApiKey null or empty!");
}
AlphaVantageCoreClient client = new AlphaVantageCoreClient();
Dictionary <string, string> query = new Dictionary <string, string>()
{
{ "symbol", Symbol.Symbol },
{ "interval", "5min" },
{ "outputsize", "full" }
};
JObject result = await client.RequestApiAsync(apiKey, ApiFunction.TIME_SERIES_INTRADAY, query);
DateTime lastRefresh = Symbol.LastRefresh ?? DateTime.MinValue;
string timeZoneString = (string)result["Meta Data"]["6. Time Zone"];
//TODO: Move elsewhere
if ("US/Eastern".Equals(timeZoneString))
{
timeZoneString = "US Eastern Standard Time";
}
TimeZoneInfo timeZone = TimeZoneInfo.FindSystemTimeZoneById(timeZoneString);
Symbol.Values = new List <StockValue>();
List <Task> waitingTasks = new List <Task>();
foreach (JObject timeSerie in result["Time Series (5min)"].Values())
{
JProperty prop = (JProperty)timeSerie.Parent;
String timestampProp = prop.Name;
DateTime localTimeStamp = DateTime.ParseExact(timestampProp, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
DateTime utcTimeStamp = TimeZoneInfo.ConvertTimeToUtc(localTimeStamp, timeZone);
if (utcTimeStamp < lastRefresh)
{
continue;
}
StockValue value = new StockValue()
{
TimeStamp = utcTimeStamp,
Open = Decimal.Parse(timeSerie.Value <string>("1. open")),
High = Decimal.Parse(timeSerie.Value <string>("2. high")),
Low = Decimal.Parse(timeSerie.Value <string>("3. low")),
Close = Decimal.Parse(timeSerie.Value <string>("4. close")),
Volume = Decimal.Parse(timeSerie.Value <string>("5. volume")),
ParentId = Symbol.Id
};
Symbol.Values.Add(value);
waitingTasks.Add(_repository.AddStockSymbolDataAsync(value));
if (waitingTasks.Count > 4)
{
int i = Task.WaitAny(waitingTasks.ToArray());
waitingTasks.RemoveAt(i);
}
}
Task.WaitAll(waitingTasks.ToArray());
waitingTasks.Clear();
DateTime localRefresh = DateTime.ParseExact((string)result["Meta Data"]["3. Last Refreshed"], "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
Symbol.LastRefresh = TimeZoneInfo.ConvertTimeToUtc(localRefresh, timeZone);
return(Symbol);
}