Support for Blazor Server

[sebastianbk]

Thanks a lot for all of the work that has gone into this fantastic project. I've used it for multiple ASP.NET Core MVC projects and it works so well. I really appreciate all of your efforts!

Now, I'm building a Blazor Server app and, unfortunately, ElmahCore does not catch exceptions thrown in Blazor Server components. Is there any way this could be added easily?

[sebastianbk]

I'm actually a little puzzled why this doesn't work. Blazor Server logs exceptions to Microsoft.Extensions.Logging but, even though I have configured ElmahCore using ConfigureLogging, I don't see any exceptions raised in components.

builder.Host.ConfigureLogging((context, logging) =>
{
    logging.Services.AddElmah<PgsqlErrorLog>(options =>
    {
        options.ConnectionString = npgsqlConnectionStringBuilder.ConnectionString;
        options.OnPermissionCheck = (context) =>
        {
            var email = context.User?.Claims?.Where(c => c.Type.Equals(System.Security.Claims.ClaimTypes.Email))
                .Select(c => c.Value)
                .FirstOrDefault();
            return email.EndsWith("@*******.***");
        };
    });
});

Am I doing something wrong?

[LukasKubicek]

Hi, has this been resolved? I have Blazor Server, added ElmahCore and it is logging things like 404 but not exceptions happening in Blazor Server - I mean exceptions that the default Microsoft logger stores in Windows Event log. I would like these exceptions to be saved into ElmahCore as well.

[justBanks]

This issue is now solved using .NET's ErrorBoundary component together with the ElmahExtensions.RaiseError(exception) statement. In fact, when implementing global error handling, I find that Elmah logs errors in Blazor server as well as in client components.

🔥See this comment here, which references the article here 🔥🔥