public ActionResult <string> Get()
{
//run with Chrome or Edge browser to see the result in the browser
var response = $"DI Scope Transient:\r\n" +
$"IOptions:{_serviceClient.GetUrl()}\r\n" +
$"IOptionsMonitor: {_serviceClient.GetUpdatedUrl()}\r\n" +
$"IOptionsSnapshot:{_serviceClient.GetSnapshotUrl()}\r\n" +
$"IOptionsSnapshot.HttpSource:{_serviceClient.GetSnapshotHttpSourceKey()}\r\n" +
$"IOptionsMonitor.HttpSource:{_serviceClient.GetMonitorHttpSourceKey()}" +
$"\r\n\r\nDI Scope Singleton:\r\n" +
$"IOption:{_singletonClass.GetUrl()}\r\n" +
$"IOptionsMonitor: {_singletonClass.GetUpdatedUrl()}\r\n" +
$"IOptionsSnapshot:{_singletonClass.GetSnapshotUrl()}\r\n" +
$"IOptions.HttpSource:{_singletonClass.GetOptionHttpSourceKey()}\r\n" +
$"IOptionsMonitor.HttpSource:{_singletonClass.GetMonitorHttpSourceKey()}";
return(response);
}