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Merged
RolandGuijt merged 1 commit into from
Jan 22, 2026
Merged

Add BlazorWasm sample for BFF v4 #290

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18 changes: 18 additions & 0 deletions BFF/v4/BlazorWasm/BFF/BFF.csproj
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<Project Sdk="Microsoft.NET.Sdk.Web">

<PropertyGroup>
<TargetFramework>net10.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>

<ItemGroup>
<ProjectReference Include="..\BlazorWasm\BlazorWasm.csproj" />
</ItemGroup>

<ItemGroup>
<PackageReference Include="Duende.BFF.Yarp" Version="4.0.2" />
<PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="10.0.2" />
</ItemGroup>

</Project>
62 changes: 62 additions & 0 deletions BFF/v4/BlazorWasm/BFF/Program.cs
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using Duende.Bff;
using Duende.Bff.Yarp;
using Microsoft.AspNetCore.Authentication;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddAuthorization();
builder.Services.AddCascadingAuthenticationState();
builder.Services
.AddBff()
.AddRemoteApis()
.ConfigureOpenIdConnect(options =>
{
options.Authority = "https://demo.duendesoftware.com";

options.ClientId = "interactive.confidential";
options.ClientSecret = "secret";
options.ResponseType = "code";
options.ResponseMode = "query";

options.Scope.Clear();
options.Scope.Add("openid");
options.Scope.Add("profile");
options.Scope.Add("api");
options.Scope.Add("offline_access");

options.MapInboundClaims = false;
options.ClaimActions.MapAll();
options.GetClaimsFromUserInfoEndpoint = true;
options.SaveTokens = true;

options.TokenValidationParameters.NameClaimType = "name";
options.TokenValidationParameters.RoleClaimType = "role";
})
.ConfigureCookies(options =>
{
options.Cookie.Name = "__Host-blazor";
options.Cookie.SameSite = SameSiteMode.Strict;
});

var app = builder.Build();

app.UseAuthentication();
app.UseBff();
app.UseAuthorization();

app.MapBffManagementEndpoints();

app.MapStaticAssets();

app.MapGet("/api/data", async () =>
{
var json = await File.ReadAllTextAsync("weather.json");
return Results.Content(json, "application/json");
}).RequireAuthorization().AsBffApiEndpoint();

app.MapRemoteBffApiEndpoint("/remoteapi", new Uri("https://demo.duendesoftware.com/api"))
.WithAccessToken();

app.MapFallbackToFile("index.html");

app.Run();
23 changes: 23 additions & 0 deletions BFF/v4/BlazorWasm/BFF/Properties/launchSettings.json
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{
"$schema": "https://json.schemastore.org/launchsettings.json",
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "http://localhost:5267",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "https://localhost:7256;http://localhost:5267",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}
8 changes: 8 additions & 0 deletions BFF/v4/BlazorWasm/BFF/appsettings.Development.json
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}
9 changes: 9 additions & 0 deletions BFF/v4/BlazorWasm/BFF/appsettings.json
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}
27 changes: 27 additions & 0 deletions BFF/v4/BlazorWasm/BFF/weather.json
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[
{
"date": "2022-01-06",
"temperatureC": 1,
"summary": "Freezing"
},
{
"date": "2022-01-07",
"temperatureC": 14,
"summary": "Bracing"
},
{
"date": "2022-01-08",
"temperatureC": -13,
"summary": "Freezing"
},
{
"date": "2022-01-09",
"temperatureC": -16,
"summary": "Balmy"
},
{
"date": "2022-01-10",
"temperatureC": -2,
"summary": "Chilly"
}
]
4 changes: 4 additions & 0 deletions BFF/v4/BlazorWasm/BlazorSample.slnx
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<Solution>
<Project Path="BFF/BFF.csproj" />
<Project Path="BlazorWasm/BlazorWasm.csproj" />
</Solution>
8 changes: 8 additions & 0 deletions BFF/v4/BlazorWasm/BlazorWasm/App.razor
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<CascadingAuthenticationState>
<Router AppAssembly="@typeof(App).Assembly" NotFoundPage="typeof(Pages.NotFound)">
<Found Context="routeData">
<RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)"/>
<FocusOnNavigate RouteData="@routeData" Selector="h1" />
</Found>
</Router>
</CascadingAuthenticationState>
21 changes: 21 additions & 0 deletions BFF/v4/BlazorWasm/BlazorWasm/BlazorWasm.csproj
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<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">

<PropertyGroup>
<TargetFramework>net10.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<OverrideHtmlAssetPlaceholders>true</OverrideHtmlAssetPlaceholders>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="Duende.BFF.Blazor.Client" Version="4.0.2" />
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.0" />
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Authentication" Version="10.0.2" />
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.0" PrivateAssets="all" />
</ItemGroup>

<ItemGroup>
<Folder Include="wwwroot\sample-data\" />
</ItemGroup>

</Project>
24 changes: 24 additions & 0 deletions BFF/v4/BlazorWasm/BlazorWasm/Layout/MainLayout.razor
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@inherits LayoutComponentBase
<div class="page">
<div class="sidebar">
<NavMenu />
</div>

<main>
<div class="top-row px-4">
<AuthorizeView>
<Authorized>
<strong>Hello, @context.User.Identity.Name!</strong>
<a href="@context.User.FindFirst("bff:logout_url")?.Value">Log out
</a>
</Authorized>
<NotAuthorized>
<a href="bff/login">Log in</a>
</NotAuthorized>
</AuthorizeView>
</div>
<article class="content px-4">
@Body
</article>
</main>
</div>
77 changes: 77 additions & 0 deletions BFF/v4/BlazorWasm/BlazorWasm/Layout/MainLayout.razor.css
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.page {
position: relative;
display: flex;
flex-direction: column;
}

main {
flex: 1;
}

.sidebar {
background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
}

.top-row {
background-color: #f7f7f7;
border-bottom: 1px solid #d6d5d5;
justify-content: flex-end;
height: 3.5rem;
display: flex;
align-items: center;
}

.top-row ::deep a, .top-row ::deep .btn-link {
white-space: nowrap;
margin-left: 1.5rem;
text-decoration: none;
}

.top-row ::deep a:hover, .top-row ::deep .btn-link:hover {
text-decoration: underline;
}

.top-row ::deep a:first-child {
overflow: hidden;
text-overflow: ellipsis;
}

@media (max-width: 640.98px) {
.top-row {
justify-content: space-between;
}

.top-row ::deep a, .top-row ::deep .btn-link {
margin-left: 0;
}
}

@media (min-width: 641px) {
.page {
flex-direction: row;
}

.sidebar {
width: 250px;
height: 100vh;
position: sticky;
top: 0;
}

.top-row {
position: sticky;
top: 0;
z-index: 1;
}

.top-row.auth ::deep a:first-child {
flex: 1;
text-align: right;
width: 0;
}

.top-row, article {
padding-left: 2rem !important;
padding-right: 1.5rem !important;
}
}
44 changes: 44 additions & 0 deletions BFF/v4/BlazorWasm/BlazorWasm/Layout/NavMenu.razor
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<div class="top-row ps-3 navbar navbar-dark">
<div class="container-fluid">
<a class="navbar-brand" href="">BlazorWasm</a>
<button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
<span class="navbar-toggler-icon"></span>
</button>
</div>
</div>

<div class="@NavMenuCssClass nav-scrollable" @onclick="ToggleNavMenu">
<nav class="nav flex-column">
<div class="nav-item px-3">
<NavLink class="nav-link" href="" Match="NavLinkMatch.All">
<span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="counter">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> Counter
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="weather">
<span class="bi bi-list-nested-nav-menu" aria-hidden="true"></span> Weather
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="claims">
<span class="bi bi-list-nested-nav-menu" aria-hidden="true"></span> Claims
</NavLink>
</div>
</nav>
</div>

@code {
private bool collapseNavMenu = true;

private string? NavMenuCssClass => collapseNavMenu ? "collapse" : null;

private void ToggleNavMenu()
{
collapseNavMenu = !collapseNavMenu;
}
}
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