elsa-core/src/apps/ElsaStudioWebAssembly/Program.cs

using System.Text.Json;
using Elsa.Studio.Dashboard.Extensions;
using Elsa.Studio.Shell;
using Elsa.Studio.Shell.Extensions;
using Elsa.Studio.Workflows.Extensions;
using Elsa.Studio.Contracts;
using Elsa.Studio.Core.BlazorWasm.Extensions;
using Elsa.Studio.Extensions;
using Elsa.Studio.Login.BlazorWasm.Extensions;
using Elsa.Studio.Login.Extensions;
using Elsa.Studio.Login.HttpMessageHandlers;
using Elsa.Studio.Models;
using Elsa.Studio.Options;
using Elsa.Studio.Workflows.Designer.Extensions;
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Options;
using Microsoft.JSInterop;

// Build the host.
var builder = WebAssemblyHostBuilder.CreateDefault(args);

// Register root components.
builder.RootComponents.Add<App>("#app");
builder.RootComponents.Add<HeadOutlet>("head::after");
builder.RootComponents.RegisterCustomElsaStudioElements();

// Register shell services and modules.
var backendApiConfig = new BackendApiConfig
{
    ConfigureBackendOptions = options => builder.Configuration.GetSection("Backend").Bind(options),
    ConfigureHttpClientBuilder = options => options.AuthenticationHandler = typeof(AuthenticatingApiHttpMessageHandler)
};

builder.Services.AddCore();
builder.Services.AddShell();
builder.Services.AddRemoteBackend(backendApiConfig);
builder.Services.AddLoginModule();
builder.Services.UseElsaIdentity();
builder.Services.AddDashboardModule();
builder.Services.AddWorkflowsModule();
builder.Services.AddAgentsModule(backendApiConfig);

// Build the application.
var app = builder.Build();

// Apply client config.
var js = app.Services.GetRequiredService<IJSRuntime>();
var clientConfig = await js.InvokeAsync<JsonElement>("getClientConfig");
var apiUrl = clientConfig.GetProperty("apiUrl").GetString()!;
app.Services.GetRequiredService<IOptions<BackendOptions>>().Value.Url = new Uri(apiUrl);

// Run each startup task.
var startupTaskRunner = app.Services.GetRequiredService<IStartupTaskRunner>();
await startupTaskRunner.RunStartupTasksAsync();

// Run the application.
await app.RunAsync();