// https://docs.asp.net/en/latest/mvc/controllers/dependency-injection.html#accessing-settings-from-a-controller
public CredentialManager(IOptions <Settings_Email> optionsAccessor)
{
_settings = optionsAccessor.Value; // reads appsettings.json
smtp = _settings.Host;
port = _settings.Port;
}
public EmailSink(string host, int port,
string recipients, string subject, string credentials,
IEventTextFormatter formatter,
IOptions <Settings_Email> optionsAccessor)
{
this.formatter = formatter ?? new EventTextFormatter();
this.host = host;
this.port = GuardPort(port);
_settings = optionsAccessor.Value; // reads appsettings.json
this.sender = new MailAddress(_settings.UserName); // see http://dotnetslackers.com/Community/blogs/kaushalparik/archive/2008/09/06/accessing-web-config-file-smtp-mail-settings-programmatically.aspx
this.recipients.Add(GuardRecipients(recipients));
this.subject = subject ?? DefaultSubject;
}
