static void Main(string[] args)
{
IServiceProvider services = ServiceProviderBuilder.GetServiceProvider(args);
IOptions <APIKeys> options = services.GetRequiredService <IOptions <APIKeys> >();
SampleData.Root gnpcaData = CallAPI.CallLatestDataAPI("GNPCA", new DateTime(2010, 1, 1), DateTime.Now, options.Value.FRED);
Console.ReadLine();
}
public static SampleData.Root CallLatestDataAPI(string sereisID, DateTime startDt, DateTime endDt, string apiKey)
{
SampleData.Root returnObject = new SampleData.Root();
string content = string.Empty;
string url = string.Format("https://api.stlouisfed.org/fred/series/observations?series_id={0}&observation_start={1}&observation_end={2}&api_key={3}&file_type=json", sereisID, startDt.ToString("yyy-MM-dd"), endDt.ToString("yyyy-MM-dd"), apiKey);
WebRequest myReq = WebRequest.Create(url);
using (WebResponse wr = myReq.GetResponse())
using (Stream receiveStream = wr.GetResponseStream())
using (StreamReader sReader = new StreamReader(receiveStream, Encoding.UTF8))
content = sReader.ReadToEnd();
return(JsonSerializer.Deserialize <SampleData.Root>(content));
}