public static IApplicationBuilder UseEFCoreSlowQuery(this IApplicationBuilder app, Action <EFCoreSlowQueryOptions> optionsAction)
{
if (optionsAction == null)
{
throw new ArgumentNullException();
}
var options = new EFCoreSlowQueryOptions();
optionsAction.Invoke(options);
var logger = app.CreateLogger();
RegisterObserver(logger, options);
return(app);
}
private static void RegisterObserver(ILogger logger, EFCoreSlowQueryOptions options)
{
var slowQueryObserver = new SlowQueryObserver(logger, options);
DiagnosticListener.AllListeners.Subscribe(new EFCoreObserver(slowQueryObserver));
}
public SlowQueryObserver(ILogger logger, EFCoreSlowQueryOptions options)
{
_logger = logger;
_options = options;
}