logo
Tags down

shadow

What are the difference using app.run and app.useendpoints in asp.net-core?


By : Ali
Date : September 29 2020, 12:00 PM
like below fixes the issue For app.Run, it adds a terminal middleware delegate to the application's request pipeline.
For app.Use, it adds a middleware delegate to the application's request pipeline.
code :
    public static IApplicationBuilder UseEndpoints(this IApplicationBuilder builder, Action<IEndpointRouteBuilder> configure)
    {
        if (builder == null)
        {
            throw new ArgumentNullException(nameof(builder));
        }

        if (configure == null)
        {
            throw new ArgumentNullException(nameof(configure));
        }

        VerifyRoutingServicesAreRegistered(builder);

        VerifyEndpointRoutingMiddlewareIsRegistered(builder, out var endpointRouteBuilder);

        configure(endpointRouteBuilder);

        // Yes, this mutates an IOptions. We're registering data sources in a global collection which
        // can be used for discovery of endpoints or URL generation.
        //
        // Each middleware gets its own collection of data sources, and all of those data sources also
        // get added to a global collection.
        var routeOptions = builder.ApplicationServices.GetRequiredService<IOptions<RouteOptions>>();
        foreach (var dataSource in endpointRouteBuilder.DataSources)
        {
            routeOptions.Value.EndpointDataSources.Add(dataSource);
        }

        return builder.UseMiddleware<EndpointMiddleware>();
    }
    public static IApplicationBuilder UseMiddleware(this IApplicationBuilder app, Type middleware, params object[] args)
    {
        if (typeof(IMiddleware).GetTypeInfo().IsAssignableFrom(middleware.GetTypeInfo()))
        {
            // IMiddleware doesn't support passing args directly since it's
            // activated from the container
            if (args.Length > 0)
            {
                throw new NotSupportedException(Resources.FormatException_UseMiddlewareExplicitArgumentsNotSupported(typeof(IMiddleware)));
            }

            return UseMiddlewareInterface(app, middleware);
        }

        var applicationServices = app.ApplicationServices;
        return app.Use(next =>
        {
            var methods = middleware.GetMethods(BindingFlags.Instance | BindingFlags.Public);
            var invokeMethods = methods.Where(m =>
                string.Equals(m.Name, InvokeMethodName, StringComparison.Ordinal)
                || string.Equals(m.Name, InvokeAsyncMethodName, StringComparison.Ordinal)
                ).ToArray();

            if (invokeMethods.Length > 1)
            {
                throw new InvalidOperationException(Resources.FormatException_UseMiddleMutlipleInvokes(InvokeMethodName, InvokeAsyncMethodName));
            }

            if (invokeMethods.Length == 0)
            {
                throw new InvalidOperationException(Resources.FormatException_UseMiddlewareNoInvokeMethod(InvokeMethodName, InvokeAsyncMethodName, middleware));
            }

            var methodInfo = invokeMethods[0];
            if (!typeof(Task).IsAssignableFrom(methodInfo.ReturnType))
            {
                throw new InvalidOperationException(Resources.FormatException_UseMiddlewareNonTaskReturnType(InvokeMethodName, InvokeAsyncMethodName, nameof(Task)));
            }

            var parameters = methodInfo.GetParameters();
            if (parameters.Length == 0 || parameters[0].ParameterType != typeof(HttpContext))
            {
                throw new InvalidOperationException(Resources.FormatException_UseMiddlewareNoParameters(InvokeMethodName, InvokeAsyncMethodName, nameof(HttpContext)));
            }

            var ctorArgs = new object[args.Length + 1];
            ctorArgs[0] = next;
            Array.Copy(args, 0, ctorArgs, 1, args.Length);
            var instance = ActivatorUtilities.CreateInstance(app.ApplicationServices, middleware, ctorArgs);
            if (parameters.Length == 1)
            {
                return (RequestDelegate)methodInfo.CreateDelegate(typeof(RequestDelegate), instance);
            }

            var factory = Compile<object>(methodInfo, parameters);

            return context =>
            {
                var serviceProvider = context.RequestServices ?? applicationServices;
                if (serviceProvider == null)
                {
                    throw new InvalidOperationException(Resources.FormatException_UseMiddlewareIServiceProviderNotAvailable(nameof(IServiceProvider)));
                }

                return factory(instance, context, serviceProvider);
            };
        });
    }


Share : facebook icon twitter icon

UseEndpoints routing to Login page with Identity on startup


By : Lubna
Date : March 29 2020, 07:55 AM
This might help you If only authenticated user can access your application , you can provide a policy in the call to AddAuthorization.The DefaultPolicy is initially configured to require authentication, so no additional configuration is required :
code :
public void Configure(IApplicationBuilder app)
{
    ...

    app.UseRouting();

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

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapDefaultControllerRoute().RequireAuthorization();
    });
}

Why is middleware not executed when there are multiple calls to app.UseEndpoints(..)?


By : user3487333
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You seem to misunderstand how endpoint routing works. There are two middlewares that endpoint routing runs: The routing middleware, invoked by app.UseRouting(), and the endpoint middleware, invoked by app.UseEndpoints(…).
The routing middleware runs first and its job is to essentially figure out what endpoint is being requested. It uses the information from the request to figure that out. When it’s done, it saves that information to be used for later. It does not actually produce any output.

How can I check if a route is valid in a .NET Core middleware before UseEndpoints does?


By : user3550353
Date : March 29 2020, 07:55 AM
will be helpful for those in need The call to UseRouting does the job of figuring out which endpoint is going to run. If a match is found, it sets the Endpoint for the current HttpContext. This is available inside a middleware component using HttpContext.GetEndpoint. Here's an example that uses this approach:
code :
app.UseRouting();

app.Use(async (ctx, next) =>
{
    // using Microsoft.AspNetCore.Http;
    var endpoint = ctx.GetEndpoint();

    if (endpoint != null)
    {
        // An endpoint was matched.
        // ...
    }

    await next();
});

app.UseEndpoints(endpoints => endpoints.MapControllers());

IApplicaionBuilder dos not contain a definition UseEndpoints. app.UseEndpoints(...) not workin on ASP.NET CORE


By : user3550966
Date : March 29 2020, 07:55 AM
may help you . As per your comment, you are targeting .NET Core 2.1, but the UseEndpoints extension method was introduced in 3.0. To add SignalR in 2.1, firstly make sure you have services.AddSignalR(); in your ConfigureServices method. Secondly, you should use app.UseSignalR in the Configure method, instead of UseEndpoints.
Like so:
code :
app.UseSignalR(route =>
{
    route.MapHub<MyHub>("/myHub");
});

What are the differences between app.UseRouting() and app.UseEndPoints()?


By : Baskaran R
Date : October 03 2020, 05:00 AM
may help you . First of all,you could have a look at their source code:
1.UseRouting
code :
public static IApplicationBuilder UseRouting(this IApplicationBuilder builder)
    {
        if (builder == null)
        {
            throw new ArgumentNullException(nameof(builder));
        }

        VerifyRoutingServicesAreRegistered(builder);

        var endpointRouteBuilder = new DefaultEndpointRouteBuilder(builder);
        builder.Properties[EndpointRouteBuilder] = endpointRouteBuilder;

        return builder.UseMiddleware<EndpointRoutingMiddleware>(endpointRouteBuilder);
    }
public static IApplicationBuilder UseEndpoints(this IApplicationBuilder builder, Action<IEndpointRouteBuilder> configure)
    {
        if (builder == null)
        {
            throw new ArgumentNullException(nameof(builder));
        }

        if (configure == null)
        {
            throw new ArgumentNullException(nameof(configure));
        }

        VerifyRoutingServicesAreRegistered(builder);

        VerifyEndpointRoutingMiddlewareIsRegistered(builder, out var endpointRouteBuilder);

        configure(endpointRouteBuilder);

        // Yes, this mutates an IOptions. We're registering data sources in a global collection which
        // can be used for discovery of endpoints or URL generation.
        //
        // Each middleware gets its own collection of data sources, and all of those data sources also
        // get added to a global collection.
        var routeOptions = builder.ApplicationServices.GetRequiredService<IOptions<RouteOptions>>();
        foreach (var dataSource in endpointRouteBuilder.DataSources)
        {
            routeOptions.Value.EndpointDataSources.Add(dataSource);
        }

        return builder.UseMiddleware<EndpointMiddleware>();
    }
Related Posts Related Posts :
  • NullReferenceException with Ckeditor 5 and ASP.NET MVC bundle error?
  • How to refresh unc path cache?
  • dllexport Struct pointers and returning uint8_t
  • Is it a good practice to have setter in the get instance property of a singleton class
  • How to sort the coordinates of a hash set in C#
  • Multiply 64-bit integers using .NET Core's hardware intrinsics
  • How to parse string data to string and long?
  • Submit Button is not working In Razor asp.net mvc
  • While loop multiple condition check with single variable
  • Inside a catch clause, how can I see an exception without a name
  • How I can use Certificate.pfx for windows exe build
  • I'm trying to detect that SQL Server Compact Edition is installed in a system or not
  • UWP Replace MainView with FullScreen Frame
  • How do I display the data of the "current user"?
  • AVX2 SIMD XOR not yielding performance improvements in .NET
  • Algorithm to find the closest time
  • Xamarin Form - How To store an image in PDF or JPEG Format in UWP
  • ModelState error: The value 'null' is not valid for nullable field
  • Pre Increment of an operator
  • MSTest Asserts fail with null reference
  • Getting random numbers after a simple math problem. Might be a local variable thing
  • Convert HTML to PDF using HTML Renderer using C# and XML to Pdf
  • Conversion failed when converting varchar value to datatype bit
  • How to edit an XML file in Streamingassets from my hololens
  • Naming a DispatcherTimer based on a string from another method?
  • How to call the default browser in the Hololens app
  • How do I close an IF statement if there is no more code to be executed with 'else'?
  • Unity3D: Is there a easy way to give a min/max to a value in the inspector?
  • The type or namespace name 'ICloudRecoEventHandler' could not be found
  • When compiling C# expression trees into methods, is it possible to access "this"?
  • Sort an array of strings in ascending order in C#
  • How detect is a method in a C# class is implementing a method from an interface?
  • How to parse a timespan in order to add it to a datetime?
  • Changing code from if-statement to switch-statement in C#
  • Linq GroupBy Clause not including items with zero count
  • How to determine the highest value in a list of properties
  • C# Custom Json.NET List serialization
  • Session Variable is null after using RedirectToAction
  • How to manipulate c# code programatically In .Net Core?
  • Modifying Windows System sounds
  • Is there a way to convert this powershell script to C#
  • Lists will show null even though assigned in constructor
  • Any way to have a `using` block that doesn't define a scope block?
  • How do I get a result from this mocked service?
  • async await losing response in c#
  • How can I pause an execution without using Thread.Sleep()
  • How to Stop In Azure Ad Authentication Sign Out ask for Which account do you want to sign out of?
  • Use operators with and without space in c#
  • Remove duplicates from comma separated list
  • Use a String variable as argument from if sentence
  • unity how to avoid scaling heritage when parenting?
  • Is there a way to do nested model binding with the [FromBody] attribute?
  • How to insert dynamic query into table using c#
  • Why Unit Testing Assert.AreEqual() method does NOT pick up my own Equals() method in the customized class
  • Unity Error: Feature 'out variable declaration'
  • What happens if my C# switch expression is non-exhaustive?
  • How Can I Select an ItemTemplate Based on a Value?
  • EF Class table name and column have same name
  • Substring issues - input string was not in a correct format
  • C# Asynchronously read data from a redirected StandardOutput
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk