I'm trying to build a simple project using Asp.Net Core and Identity Server 4. But I'm faced with the error
No storage mechanism for grants specified. Use the 'AddInMemoryPersistedGrants' extension method to register a development version"
..My Startup class is:
`
public void ConfigureService(IServiceCollection services)
{
services.AddIdentityServer()
.AddInMemoryApiResources(Config.GetAllApiResources())
.AddInMemoryIdentityResources(Config.GetIdentityResources())
.AddInMemoryClients(Config.GetClients())
.AddDeveloperSigningCredential();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseIdentityServer();
}
`
Notice, when I use AddInMemoryPersistedGrants method, nothing is changed- still the same error. How can I fix it?
Related
I am Upgrading .Net core web api solution 2.2 to 3.1
I have question what should i use in statrup.cs file for 3.1
// currently i am using this
public Startup(Microsoft.AspNetCore.Hosting.IHostingEnvironment env)
public Startup(Microsoft.Extensions.Hosting.IHostingEnvironment env)
I am Upgrading .Net core web api solution 2.2 to 3.1 I have question what should i use in statrup.cs file for 3.1
If you create a new ASP.NET Core 3.1 API project using the API template, you would find it uses below Startup class.
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
Compare it with old one, you can find the following changes:
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2) is changed to services.AddControllers()
IHostingEnvironment is obsolete, and it uses IWebHostEnvironment now
app.UseEndpoints, endpoint routing is used
This is my startup.cs file
Does anyone know whats going wrong This is my index.cshtml
Alright so my code will be below its very basic startup.cs file and a index.cshtml file with some basic code just for testing
public class Startup
{
// This method gets called by the runtime. Use this method to add services to the container.
// For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
public void ConfigureServices(IServiceCollection services)
{
services.AddRazorPages();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Error");
app.UseHsts();
}
app.UseStaticFiles();
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapRazorPages();
});
}
}}
#page
#DateTime.Now
Try to create a new project and check whether you have the same problem.
And did you apply something to your service side? You can share it.
Or you can try these code first:
ConfigureServices:
services.AddMvc(options =>
{
options.EnableEndpointRouting = false;
});
Configure:
app.UseMvcWithDefaultRoute();
I build blazor server multi tenant application and I wants to use HasQueryFilter in entity framework DbContext for predefined filter with TenantId. Ofcourse I have connected User with tenant. I created CurrentTenatnProvider which has method GetCurrentTenatnId. In this mehtod i use AuthentificationStateProvider and call GetAuthenticationStateAsync(). Ofcourse i get the error ''GetAuthenticationStateAsync was called before SetAuthenticationState". I Cannot use IHttpContextAccessor because in Azure app I get null reference exception.
Is there any other possibility how to get CurrentUser in time when DbContext execute select data query?
I was thinking about cache CurrnetUser but there is problem with cache key.CurrentTenatnProvider service is registered as scoped service. There is Id attribute which is set in constructor. And then is used as cache key. But this approach does not working and I get the same error.
It si possible get signal-r connection identificator and use it as cache key?
I spended 2 days with test lots of combination and read lots of documentation but unfortunately I didn't find any solution. I will be very grateful for any advice.
I have done this a few ways but the simplest way I could find was retrieving my user from the database in the MainLayout.razor file during OnInitializedAsync() and passing it in a fixed cascading parameter <CascadingValue Name="CurrentUser" IsFixed="true" Value="UserId">. From there, I could reference it where needed in any child component.
finally I found solution! From my view it is bug! Problem is because services.AddDbContextFactory is registered as Singleton. I create my own implementation of IDbContext factory and register it as Scoped. After this change everything’s works perfect. When I change registration scope of DbContextFactory to singleton, I get the error: GetAuthenticationStateAsync was called before SetAuthenticationState.
My DbContextFactory
public class BlazorContextFactory<TContext> : IDbContextFactory<TContext> where TContext : DbContext
{
private readonly IServiceProvider provider;
public BlazorContextFactory(IServiceProvider provider)
{
this.provider = provider;
}
public TContext CreateDbContext()
{
if (provider == null)
{
throw new InvalidOperationException(
$"You must configure an instance of IServiceProvider");
}
return ActivatorUtilities.CreateInstance<TContext>(provider);
}
}
My StartUp
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
// For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
public void ConfigureServices(IServiceCollection services)
{
services.AddScoped<ApplicationDbContext>();
services.AddScoped<IDbContextFactory<ApplicationDbContext>, BlazorContextFactory<ApplicationDbContext>>();
services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = true)
.AddEntityFrameworkStores<ApplicationDbContext>();
services.AddRazorPages();
services.AddServerSideBlazor();
services.AddScoped<AuthenticationStateProvider, RevalidatingIdentityAuthenticationStateProvider<IdentityUser>>();
services.AddSingleton<WeatherForecastService>();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseDatabaseErrorPage();
}
else
{
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();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
endpoints.MapBlazorHub();
endpoints.MapFallbackToPage("/_Host");
});
}
}
I hope it's help other peoples! I spend 6 days with this problem :(
I have the following code in Startup.cs file
public void ConfigureServices(IServiceCollection services)
{
services.
AddAuthentication("CookieAuth").
AddCookie("CookieAuth", config =>
{
config.Cookie.Name = "user.cookie";
config.LoginPath = "/Home/Login";
});
services.AddControllersWithViews();
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment()) {
app.UseDeveloperExceptionPage();
}
app.UseRouting();
app.UseAuthentication();//determining a user's identity
app.UseAuthorization();//determines what a user is able to do
app.UseEndpoints(opt => {
opt.MapDefaultControllerRoute();
});
}
The above configuration works fine, it doesn't have any exception. But I can't figure out how the Authentication works. I have known the following concepts:
Authentication determines the user's identity.
Authorization determines what a user is able to do.
I didn't know the execution sequential. I mean:
does the Authentication always check the user's identity per request? Even though these requests are in the same session?
What's will happen if a request doesn't have a valid user's identity(e.g: on the first request)? is it going to continue executing the Authorization?
My startup.cs is
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseBrowserLink();
}
else
{
app.UseExceptionHandler("/Home/Error");
}
app.UseStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
SeedData.Seed(app);
}
and my seed class is :
public static class SeedData
{
public static void Seed(IApplicationBuilder app)
{
var _dbContext= app.ApplicationServices.GetRequiredService<BlogDbContext>();
_dbContext.Database.EnsureDeleted();
_dbContext.Add<User>(new User { UserName = "Niko", Password ="123",EmailAddress="nikozhao5456#gmail.com",UserType= Models.User.Type.Visitor,RegistDate=System.DateTime.Now});
_dbContext.Add<Admin>(new Admin{EmailAddress="lovezgd888#163.com",Password="123"});
_dbContext.SaveChanges();
}
}
when I Update-Database in the Nuget Package Manage :
An error occurred while calling method 'BuildWebHost' on class 'Program'. Continuing without the application service provider. Error: Cannot resolve scoped service 'Blog.DAL.Context.BlogDbContext' from root provider.
and
Unable to create an object of type 'BlogDbContext'. Add an implementation of 'IDesignTimeDbContextFactory' to the project, or see https://go.microsoft.com/fwlink/?linkid=851728 for additional patterns supported at design time.
Well Ive solve it by watching the docs，There is something different between Asp.Net Core 1.x and 2.0;I just should write the seed method in the program.cs