Quick demo of how to setup Rollbarin a Blazor .NET Server application.

This will allow you to capture handled and unhandled exceptions quickly and easily. The code shoudl be similer to .NET core applications with Rollbar

#Setup Program.cs

using BlazorAppRollbarDemo.Data; using Microsoft.AspNetCore.Components; using Microsoft.AspNetCore.Components.Web; using Rollbar; using Rollbar.NetCore.AspNet;

var builder = WebApplication.CreateBuilder(args);

// Rollbar Steps // STEP.1 - enable Http Context Accessor: builder.Services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

// STEP.2 - Setup Rollbar Infrastructure: ConfigureRollbarInfrastructure();

// STEP.3 - Add Rollbar logger with properly configured log level filter: builder.Services.AddRollbarLogger(loggerOptions => { loggerOptions.Filter = (loggerName, loglevel) => loglevel >= LogLevel.Trace; });

// Add services to the container. builder.Services.AddRazorPages(); builder.Services.AddServerSideBlazor(); builder.Services.AddSingleton();

var app = builder.Build();

// Configure the HTTP request pipeline. if (!app.Environment.IsDevelopment()) { app.UseExceptionHandler("/Error"); // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts. app.UseHsts(); }

// STEP.4 - Use Rollbar middleware: app.UseRollbarMiddleware();

app.UseHttpsRedirection();

app.UseStaticFiles();

app.UseRouting();

app.MapBlazorHub(); app.MapFallbackToPage("/_Host");

app.Run();

// STEP.2 - Setup Rollbar Infrastructure: void ConfigureRollbarInfrastructure() { RollbarInfrastructureConfig config = new RollbarInfrastructureConfig( "your_access_token_here", "production" ); RollbarDataSecurityOptions dataSecurityOptions = new RollbarDataSecurityOptions(); dataSecurityOptions.ScrubFields = new string[] { "url", "method", }; config.RollbarLoggerConfig.RollbarDataSecurityOptions.Reconfigure(dataSecurityOptions);

RollbarInfrastructure.Instance.Init(config);

//// Optionally:
//RollbarInfrastructure.Instance.QueueController.InternalEvent += OnRollbarInternalEvent;

}