/// <summary>
/// Initializes a new instance of the <see cref="TiingoService"/> class.
/// </summary>
/// <param name="configuration">IConfiguration</param>
public TiingoService(IConfiguration configuration)
{
this.settings = new TiingoSettings(configuration);
}
/// <summary>
/// Initializes a new instance of the <see cref="TiingoService"/> class.
/// </summary>
/// <param name="settings">Authorization token to access service.</param>
public TiingoService(TiingoSettings settings)
{
this.settings = settings ?? throw new NullReferenceException("settings must be set.");
}