C#•4mo ago

Adding Blazor to an existing Razor Pages project

I decided that messing around with SSR and JS for the admin panel is not worth the hassle and I'll just make it with Blazor. I don't care about the bundle size, I don't care about SignalR connections, seems to be a perfect fit. I think I did everything correctly, but I'm still getting errors out the wazoo.

//...
services.AddRazorComponents().AddInteractiveServerComponents();
//...
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseBanMiddleware();
app.UseAntiforgery();
app.UseEndpoints(endpoints => {
    endpoints.MapRazorPages();
    endpoints.MapControllers();
    endpoints.MapOgma3Endpoints();
    endpoints.MapGroup("panel")
        .MapRazorComponents<App>()
        .AddInteractiveServerRenderMode();
});

//...
services.AddRazorComponents().AddInteractiveServerComponents();
//...
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseBanMiddleware();
app.UseAntiforgery();
app.UseEndpoints(endpoints => {
    endpoints.MapRazorPages();
    endpoints.MapControllers();
    endpoints.MapOgma3Endpoints();
    endpoints.MapGroup("panel")
        .MapRazorComponents<App>()
        .AddInteractiveServerRenderMode();
});

but going to /panel results in the following:

An unhandled exception has occurred while executing the request.
System.InvalidOperationException: Unable to find the provided template 'panel/'

An unhandled exception has occurred while executing the request.
System.InvalidOperationException: Unable to find the provided template 'panel/'

With the whole log being https://pastie.io/bcixjg.yml

2 Replies

Salman•4mo ago

Maybe check this guide if you haven't already : https://learn.microsoft.com/en-us/aspnet/core/blazor/components/integration?view=aspnetcore-8.0#add-blazor-support-to-an-aspnet-core-app

Integrate ASP.NET Core Razor components into ASP.NET Core apps

Learn about Razor component integration scenarios ASP.NET Core apps, Razor Pages and MVC.

AngiusOP•4mo ago

Yeah, that's the one I followed :/

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Adding Blazor to an existing Razor Pages project