aspnetcore | NET Core is a cross-platform .NET framework

 by   dotnet C# Version: v8.0.0-preview.5.23302.2 License: MIT

kandi X-RAY | aspnetcore Summary

kandi X-RAY | aspnetcore Summary

aspnetcore is a C# library. aspnetcore has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

            kandi-support Support

              aspnetcore has a medium active ecosystem.
              It has 31947 star(s) with 9160 fork(s). There are 1445 watchers for this library.
              It had no major release in the last 12 months.
              There are 2600 open issues and 26897 have been closed. On average issues are closed in 141 days. There are 54 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of aspnetcore is v8.0.0-preview.5.23302.2

            kandi-Quality Quality

              aspnetcore has 0 bugs and 0 code smells.

            kandi-Security Security

              aspnetcore has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              aspnetcore code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              aspnetcore is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              aspnetcore releases are available to install and integrate.
              Installation instructions are available. Examples and code snippets are not available.
              It has 148446 lines of code, 470 functions and 9280 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

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            aspnetcore Key Features

            No Key Features are available at this moment for aspnetcore.

            aspnetcore Examples and Code Snippets

            Invoking a method on SignalR connection in Redux middleware to send message to server
            Lines of Code : 56dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import {
            } from '@microsoft/signalr';
            import actionTypes from '../actions/actionTypes';
            const startSignalRConnection = (connection) =>
            How to reuse Promise after using it once in my Angular service?
            Lines of Code : 11dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            public stopConnection = (): void => {
                if (this.hubConnection) {
            private connectionHubClosed(): void {
                //trigerred when lost connection with server
            SignalR with web Api as client [.Net Core]
            Lines of Code : 18dot img3License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            public sealed class SignalRService : BackgroundService
                /// Executes the background service.
                /// The cancellation token. This token signals that the 
            failed signalR hub connection from TypeScript
            Lines of Code : 32dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import { Injectable } from '@angular/core';
            import * as signalr from '@microsoft/signalr';
              providedIn: 'root'
            export class NotificationService {
              private hubConnection: signalr.HubConnection;
              public startConnection
            Using JWT during SignalR connection with Blazor-WASM
            Lines of Code : 49dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            var token = "eyJ";
            hubConnection = new HubConnectionBuilder()
            services.AddAuthentication(options =>
                // Identity made Cook
            calling signalr methods in javascript
            Lines of Code : 99dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                public void ConfigureServices(IServiceCollection services)
                // This method gets called by the runtime. Use this method to configure the HTTP request pipel
            SignalR from React: 'HubConnectionBuilder' is not defined no-undef
            Lines of Code : 8dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import * as signalR from '@aspnet/signalr';
            import { HubConnectionBuilder, JsonHubProtocol, LogLevel } from '@aspnet/si
            How to live notification in MVC with SignalR?
            Lines of Code : 33dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
               public class NotificationHub : Hub
                    public static void Send()
                        IHubContext context = GlobalHost.ConnectionManager.GetHubContext();
            Create an instance of IHubContext in a webjob with Simple Injector
            Lines of Code : 50dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            public class Startup
                private readonly Container container = new Container();
                public Startup(IConfiguration configuration) => Configuration = configuration;
                public IConfiguration Configuration { get; }
                public void Conf
            SignalR listener not getting invoked in React Native
            Lines of Code : 33dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                    this.messageReceived=this.messageReceived.bind(this);   // <========== **Important**
                    this.sendPrivateMessage=this.sendPrivateMessage.bind(this);   // <========== **Important**

            Community Discussions


            Entity Framework | Sequence contains more than one matching element
            Asked 2022-Mar-31 at 09:23

            I used the database first approach. The model is right (or at least it looks like) But I always get this error. Please, I've already tried so many things.. The full code of my program (and even sql script by which I create my database) is here:

            Since I have a mac. I created my model with dotnet ef cli commands (dbcontext scaffold) I can use my context. But I can't touch any DbSet..



            Answered 2022-Mar-31 at 09:23

            You have net6.0 target framework which is still not released while you have installed EF6 which is a previous iteration Entity Framework (mainly used with legacy .NET Framework projects) and you also have EF Core (a modern iteration of it) but older version - 5.0 (which you are actually using for your context, see the using Microsoft.EntityFrameworkCore; statements there).

            Try removing EntityFramework package and installing preview version of Microsoft.EntityFrameworkCore.SqlServer (possibly just updating to the latest 5 version also can help) and either removing completely or installing preview version of Microsoft.EntityFrameworkCore.Design. (Also I would recommend to update your SDK to rc and install rc versions of packages).

            Or try removing the reference to EntityFramework (not Core one) and changing target framework to net5.0 (if you have it installed on your machine).

            As for why do you see this exception - I would guess it is related to new methods added to Queryable in .NET 6 which made one of this checks to fail.


            As mentioned in the comments - update EF Core to the corresponding latest version (worked for 5.0 and 3.1) or update to .NET 6.0 and EF Core 6.



            Asp.Net Core 6 Sort Swagger UI Tags Alphabetically
            Asked 2022-Mar-29 at 21:28

            I'm using core 6 & Swashbuckle.AspNetCore

            and I'm using SwaggerAnnotations in my actions

            But my Tags Groups are not ordered

            Here's my Swagger UI page

            My Program.cs :



            Answered 2022-Feb-07 at 08:13

            I got the solution

            I created this Custom DocumentFiler thats sorts the Tags



            Unauthorized (Invalid Token) when authenticating with JWT Bearer Token after update to .NET 6
            Asked 2022-Mar-23 at 10:13

            After updating the package Microsoft.AspNetCore.Authentication.JwtBearer from version 3.1.14 to 6.0.1, requests with authentication fail with 401 Unauthorized "invalid token".

            What needs to be changed with the new package version?



            Answered 2022-Jan-20 at 13:18

            This seems to be a bug. Adding an event handler (JwtBearerEvents), the failure could be identified as a MissingMethodException:



            Publish error: Found multiple publish output files with the same relative path
            Asked 2022-Mar-21 at 05:58

            When I publish my ABP project I get the following error:



            Answered 2022-Jan-13 at 21:59


            The issue raises after .NET 6 migration. There's a new feature that blocks multiple files from being copied to the same target directory with the same file name. See

            Solution #1 (workaround):

            You can add the following build property to all your publishable (*.Web) projects' *.csproj files. This property will bypass this check and works as previously, in .NET5.



            Where are the using statements/directives in .NET 6
            Asked 2022-Mar-15 at 17:03

            I got up and running with Visual Studio 2022 Preview for a couple of days now.

            Got the first shock, there is no Startup.cs. Thats ok, a bit of reading, I know Startup is removed.

            Today got another slap. I see no using statements. Here it is.

            I just created a brand new .NET 6 web app and as I hover over the WebApplication class, I realized it stays in Microsoft.AspNetCore.Builder namespace. And the generated Program.cs class looks like this.

            So where is the using Microsoft.AspNetCore.Builder; statement?

            Whats the magic? Why is .net becoming mystical by the day?

            The full Program.cs file is as follows.



            Answered 2022-Mar-15 at 17:03

            C# 10.0 introduces a new feature called global using directive (global using ;) which allows to specify namespaces to be implicitly imported in all files in the compilation. .NET 6 RC1 has this feature enabled by default in new project templates (see enable property in your .csproj).

            For Microsoft.NET.Sdk.Web next namespaces should be implicitly imported (plus the ones from Microsoft.NET.Sdk):

            • System.Net.Http.Json
            • Microsoft.AspNetCore.Builder
            • Microsoft.AspNetCore.Hosting
            • Microsoft.AspNetCore.Http
            • Microsoft.AspNetCore.Routing
            • Microsoft.Extensions.Configuration
            • Microsoft.Extensions.DependencyInjection
            • Microsoft.Extensions.Hosting
            • Microsoft.Extensions.Logging


            To address your questions in comment:

            At the moment of writing the generated file containing default imports will be inside the obj folder named something like ProjectName.GlobalUsings.g.cs.

            To modify default imports you can add Using element to your .csproj file. Based on exposed attributes it allows several actions including addition and removal:



            Why is HttpRepl unable to find an OpenAPI description? The command "ls" does not show available endpoints
            Asked 2022-Mar-14 at 10:00

            I am working through the Microsoft Learn tutorials to "Create a web API with ASP.Net Core".

            Under the heading, "Build and test the web API", at instruction (5) I am getting a response, "Unable to find an OpenAPI description".

            For step (6) when executing the "ls" command I get the response, "No directory structure has been set, so there is nothing to list. Use the 'connect' command to set a directory structure based on an OpenAPI description". I have tried the "connect" command suggested here and have tried "dir" as an alternative to "ls".

            I can successfully change directories in step (7) and execute the GET request for step (8) and receive the expected reply. However, it really bothers me the "ls" command is not working here and seems like an important function of the httprepl tool.

            How can I get the "ls" command to work here or tell me why does it not work?



            Answered 2021-Nov-23 at 00:52

            In step 5 HttpRepl emits the warning Unable to find an OpenAPI description, which means that it can't find the swagger endpoint, and therefore the ls command wont work.

            I assume you are using VS Code and ASP.NET Core 5.0. Here is my output from running dotnet --version:



            ASP.NET Core 6 how to access Configuration during startup
            Asked 2022-Mar-08 at 11:45

            In earlier versions, we had Startup.cs class and we get configuration object as follows in the Startup file.



            Answered 2021-Oct-26 at 12:26

            WebApplicationBuilder returned by WebApplication.CreateBuilder(args) exposes Configuration and Environment properties:



            Asked 2022-Mar-03 at 15:46

            I'm using Asp.Net Core Web Api 6

            I'm facing an error when migrating my DbContext and when updating the database

            The Error



            Answered 2022-Mar-03 at 15:46

            Add try/catch similar to the above around IHostBulder.Build() in any .NET/EF Core 6.0 RC2 project, and attempt to add a migration can reproduce the issue.

            We can fix the issue with the following :



            Unable to use Hot Reload while debugging Blazor WASM (Aspnet hosted)
            Asked 2022-Mar-02 at 17:39

            If I create a new Blazor WASM app, out of the box I can use Hot Reload by running dotnet watch run in a terminal window. This will launch a browser window, and any changes I make will update in the browser automatically.

            However, if I start my app in Visual Studio with the debugger attached (F5), I don't get any hot reload functionality. When I make a change, Visual Studio shows a message in the bottom left that says Code Changes were applied successfully, but the browser does not refresh. If I refresh the browser manually, I still do not see my changes.

            I have "Hot Reload on Save" checked. Pressing the new Hot Reload button doesn't seem to do anything.

            The browser refresh script is injected into my html.

            I am using Visual Studio 2022 Version 17.0.0 Preview 7.0, and dotnet 6 RC 2 (6.0.0-rc.2.21480.10).

            Is it not possible to use Hot Reload while debugging a Blazor WASM app, or am I missing something?



            Answered 2022-Mar-02 at 17:39

            This bug has been fixed as of version 17.1 of Visual Studio 2022.


            This feature is currently unsupported when using the debugger in WebAssembly apps. According to Microsoft:

            *In Visual Studio 2022 GA release Hot Reload support for Blazor WebAssembly when using the Visual Studio debugger isn’t enabled yet. You can still get Hot Reload If you start your app through Visual Studio without the debugger, and we are working to resolve this in the next Visual Studio update.

            According to Microsoft, this will be fixed in the 17.1 release of VS 2022.

            The fix will be included in the 17.1 release.

            The latest preview version of Visual Studio 2022 (17.1.0 Preview 2 released Jan 5, 2022) contains the fix for this. I tested this personally and verified it's working. Note that you will still need to wait for 17.1 if you don't want to use the preview channel.



            Deps File Missing for Dotnet 6 Integration Tests
            Asked 2022-Feb-17 at 21:19

            Before I start, I've tried all suggestions from the following and none work:

            Integration testing ASP.NET Core with .NET Framework - can't find deps.json


            So I'm trying to write some integration tests for dotnet 6. However, my WebApplicationFactory throws the following error:

            System.InvalidOperationException: Can't find '/repos/subscription-info-api/tests/SubscriptionInfoApi.Tests.Integration/bin/Debug/net6.0/...

            System.InvalidOperationException Can't find '/repos/subscription-info-api/tests/SubscriptionInfoApi.Tests.Integration/bin/Debug/net6.0/testhost.deps.json'. This file is required for functional tests to run properly. There should be a copy of the file on your source project bin folder. If that is not the case, make sure that the property PreserveCompilationContext is set to true on your project file. E.g 'true'. For functional tests to work they need to either run from the build output folder or the testhost.deps.json file from your application's output directory must be copied to the folder where the tests are running on. A common cause for this error is having shadow copying enabled when the tests run. at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.EnsureDepsFile() at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.EnsureServer() at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateDefaultClient(DelegatingHandler[] handlers) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateDefaultClient(Uri baseAddress, DelegatingHandler[] handlers) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateClient(WebApplicationFactoryClientOptions options) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateClient() at SubscriptionInfoApi.Tests.Integration.UnitTest1.Test1() in /repos/subscription-info-api/tests/SubscriptionInfoApi.Tests.Integration/UnitTest1.cs:line 14 at SubscriptionInfoApi.Tests.Integration.UnitTest1.Test1() in /repos/subscription-info-api/tests/SubscriptionInfoApi.Tests.Integration/UnitTest1.cs:line 16 at Xunit.Sdk.TestInvoker1.<>c__DisplayClass48_0.<b__1>d.MoveNext() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 264 --- End of stack trace from previous location --- at Xunit.Sdk.ExecutionTimer.AggregateAsync(Func1 asyncAction) in //src/xunit.execution/Sdk/Frameworks/ExecutionTimer.cs:line 48 at Xunit.Sdk.ExceptionAggregator.RunAsync(Func`1 code) in //src/xunit.core/Sdk/ExceptionAggregator.cs:line 90

            My actual test code is extremely simple:



            Answered 2021-Nov-18 at 21:03

            You are probably targeting the wrong namespace for Program in your test file (like I was).

            I had to add the following at the end of my Program.cs file (last line) to make it visible to my test projects needing it:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install aspnetcore

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