public async Task GetObservationUpdatesTest()
{
List <Observation> data = await FredClient.GetObservationUpdates("GNPCA", new DateTime(2020, 1, 1), new DateTime(2020, 12, 31));
Assert.IsNotNull(data);
data = await FredClient.GetObservationUpdates(DOES_NOT_EXIST, new DateTime(2020, 1, 1), new DateTime(2020, 12, 31));
Assert.IsNull(data);
}
public async Task Download_five_symbols()
{
string[] symbols = new string[] { "LEU0252881600Q", "CPIAUCSL", "GDP", "M2V", "BAA10Y" };
DateTime startDate = new DateTime(2000, 1, 1);
DateTime endDate = new DateTime(2000, 12, 31);
ConcurrentBag <Observation> observations = new ConcurrentBag <Observation>();
Task[] tasks = new Task[symbols.Length];
for (int i = 0; i < symbols.Length; i++)
{
tasks[i] = FredClient.GetObservationUpdates(symbols[i], startDate, endDate)
.ContinueWith(x => x.Result.ForEach(o => observations.Add(o)));
}
Task result = Task.WhenAll(tasks);
await result;
Assert.IsFalse(result.IsFaulted);
Assert.AreEqual(5, observations.GroupBy(x => x.Symbol).Count());
}