MLEM/Demos.Web/Program.cs

using System;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.DependencyInjection;

namespace Demos.Web;

internal static class Program {

    private static async Task Main(string[] args) {
        var builder = WebAssemblyHostBuilder.CreateDefault(args);
        builder.RootComponents.Add<App>("#app");
        builder.RootComponents.Add<HeadOutlet>("head::after");
        builder.Services.AddScoped(_ => new HttpClient {
            BaseAddress = new Uri(builder.HostEnvironment.BaseAddress)
        });
        await builder.Build().RunAsync();
    }

}