/// <summary>
/// Gets list of historical bars for single asset from Alpaca REST API endpoint.
/// </summary>
/// <param name="symbol">Asset name for data retrieval.</param>
/// <param name="barDuration">Single historical bar duration.</param>
/// <param name="startTimeInclusive">Start time for filtering (inclusive).</param>
/// <param name="endTimeInclusive">End time for filtering (inclusive).</param>
/// <returns>Read-only list of historical bars for specified asset.</returns>
public Task <IAssetBars> ListBarsAsync(
String symbol,
BarDuration barDuration,
DateTime?startTimeInclusive = null,
DateTime?endTimeInclusive = null)
{
var builder = new UriBuilder(_alpacaHttpClient.BaseAddress)
{
Path = $"v1/assets/{symbol}/bars",
Query = new QueryBuilder()
.AddParameter("timeframe ", barDuration.ToEnumString())
.AddParameter("start_dt", startTimeInclusive)
.AddParameter("end_dt", endTimeInclusive)
};
return(getSingleObjectAsync <IAssetBars, JsonAssetBars>(_alpacaHttpClient, builder));
}
/// <summary>
/// Gets list of historical bars for several assets from Alpaca REST API endpoint.
/// </summary>
/// <param name="symbols">List of asset names for data retrieval.</param>
/// <param name="barDuration">Single historical bar duration.</param>
/// <param name="startTimeInclusive">Start time for filtering (inclusive).</param>
/// <param name="endTimeInclusive">End time for filtering (inclusive).</param>
/// <returns>Read-only list of historical bars lists for specified assets.</returns>
public Task <IEnumerable <IAssetBars> > ListBarsAsync(
IEnumerable <String> symbols,
BarDuration barDuration,
DateTime?startTimeInclusive = null,
DateTime?endTimeInclusive = null)
{
var builder = new UriBuilder(_alpacaHttpClient.BaseAddress)
{
Path = "v1/bars",
Query = new QueryBuilder()
.AddParameter("symbols", String.Join(",", symbols))
.AddParameter("timeframe", barDuration.ToEnumString())
.AddParameter("start_dt", startTimeInclusive)
.AddParameter("end_dt", endTimeInclusive)
};
return(getObjectsListAsync <IAssetBars, JsonAssetBars>(_alpacaHttpClient, builder));
}
