ExtCore/ExtCore

parker2k2

@parker2k2

parker2k2

@parker2k2

Hi Everyone.... I was wondering if anyone might be able to offer any assistance with a problem I'm experiencing when trying to use and implement Extcore in a .NET Core 3.1 MVC based solution. My setup is as follows, I have a main .NET Core 3.1 Project called AAGOne which will act as the overall holder for all of the different modules which will be used as part of the website. To test the compiled DLL modular functionality of ExtCore I have added a test module called "CBAS" which is a .NET Core 3.1 class library. I have listed the references I have set up for the two different projects below.

AAGOne - Holder Project

references - ExtCore.Mvc 5.1.0, ExtCore.Mvc.Infrastructure 5.1.0, ExtCore.WebApplication 5.1.0

CBAS - Module/Extension

references - ExtCore.Mvc.Infrastructure 5.1.0

In the holder project I am setting up ExtCore as shown below in the start up class, the "extensionsPath" variable is populated correctly as I can see the path generated and navigate there. I have attached screen shot labelled "Startup.cs - ConfigureServices" and highlighted the extcore call.

Then in the "Configure" method in Startup.cs I am then requesting that the "ApplicationBuilder" make use of extcore as showin the screen labelled "Startup.cs - Configure".

On the module "CBAS" side of things I thought I would start with setting up a really simple controller and view to test it out, so I the project structure in the screen shot labelled "CBAS Project Structure".

In Actions/UseEndPointsAction.cs I have implemented "IUseEndpointsAction" as show in screen shot labelled "UseEndpointsAction.cs". On the CBAS project file side I have added the "EmbeddedResource" directive as shown in the screen shot labelled "CBAS.csproj".

I am then building the solution and copying the built CBAS dll and placing this in the "Modules" folder within the holder solution as shown in screenshot labelled "Modules Location", which matches up with the appsettings.json of the holder project as shown in screenshot labelled with "AppSettings".

When I run the project I navigate to the correct route "https://localhost:44372/default/cbasindex" and this then triggers the view error screen as shown in screen shot labelled "View Error".

After googling around this issue I think that this may be related to this previously reported issue - ExtCore/ExtCore#22. I've tried various things but I've been unable to make progress with this....does anyone have any ideas how I can fix this problem or debug this further?

Any help much appreciated,

Thanks Ian

Kevin Boon

@SloppyShovel

Hi, We are currently looking into Extcore to use in one of our new projects, is it possible for the views to be located in a template directory in the root directory so that custom templates and/or views could be created ?

Jantje2000

@Jantje2000

Hi all, probably I'm doing something wrong, but if I adds addExtCore, i get an error

warn: ExtCore.WebApplication[0]
      System.IO.FileNotFoundException: Could not load file or assembly 'runtime.debian.8-x64.runtime.native.System.Security.Cryptography.OpenSsl, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
      File name: 'runtime.debian.8-x64.runtime.native.System.Security.Cryptography.OpenSsl, Culture=neutral, PublicKeyToken=null'
         at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, RuntimeAssembly assemblyContext, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.Assembly.Load(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
         at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
         at ExtCore.WebApplication.DefaultAssemblyProvider.GetAssembliesFromDependencyContext(List`1 assemblies)


warn: ExtCore.WebApplication[0]
      Error loading assembly 'runtime.fedora.23-x64.runtime.native.System.Security.Cryptography.OpenSsl'
warn: ExtCore.WebApplication[0]
      System.IO.FileNotFoundException: Could not load file or assembly 'runtime.fedora.23-x64.runtime.native.System.Security.Cryptography.OpenSsl, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
      File name: 'runtime.fedora.23-x64.runtime.native.System.Security.Cryptography.OpenSsl, Culture=neutral, PublicKeyToken=null'
         at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, RuntimeAssembly assemblyContext, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.Assembly.Load(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
         at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
         at ExtCore.WebApplication.DefaultAssemblyProvider.GetAssembliesFromDependencyContext(List`1 assemblies)


warn: ExtCore.WebApplication[0]
      Error loading assembly 'runtime.fedora.24-x64.runtime.native.System.Security.Cryptography.OpenSsl'
warn: ExtCore.WebApplication[0]
      System.IO.FileNotFoundException: Could not load file or assembly 'runtime.fedora.24-x64.runtime.native.System.Security.Cryptography.OpenSsl, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
      File name: 'runtime.fedora.24-x64.runtime.native.System.Security.Cryptography.OpenSsl, Culture=neutral, PublicKeyToken=null'
         at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, RuntimeAssembly assemblyContext, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.Assembly.Load(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
         at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
         at ExtCore.WebApplication.DefaultAssemblyProvider.GetAssembliesFromDependencyContext(List`1 assemblies)

Anyone who know how to solve this? I don't add extension currently, so I don't know what the reason of this error is.

I use .netcore 3.1, so maybe that's wrong?

Jantje2000

@Jantje2000

@DmitrySikorsky Do you know how I could solve this?

Benjamin Nolmans

@Xarkam

@Jantje2000 what's your linux distrib ?

In any case, it's normal, it looks for assemblies according to your distribution. Take a good look at the name he is looking for.

Jantje2000

@Jantje2000

That's the weird thing, because I am using Windows.

Jantje2000

@Jantje2000

Right, that warnings did'nt have any effects, so my app is working now.

I have another question. Is it possible to locate the dll files in a zip folder, or is that impossible?

And if each zip folder has it's own dependencies, it could be that 1 dependency is in multiple folders. Is that possible, or should each dependency only be 1 time in it?

Benjamin Nolmans

@Xarkam

@Jantje2000 ok for windows. It's same of linux :)

For your question, look at publish an application in microsoft documentation.

Jantje2000

@Jantje2000

Ehm, I want the plugins to be in a zip package. That has nothing to do with publishing an app I think?

Jantje2000

@Jantje2000

Hi, I am using extcore now, but sometimes , the body in my api controller is null, however I use the [FromBody] attribute and my body isn't empty in Postman

Anyone who knows what's the problem?

Benjamin Nolmans

@Xarkam

I don't think this is a problem with extcore

I have never had any problems with my controllers and extcore

Johannes Jacobs

@johmarjac

hi, is it possible to use ExtCore for long running services too?
For example, I want to run a .NET Core 3.1 WebApi Application which uses ExtCore. Then I want to make an Extension which is NOT invoked upon request. It more should make use of the Discord.NET Api and act as a discord bot... can i use ExtCore for something like that?

Armarr

@Armarr

@johmarjac Asp Core can do this with hosted services and using ExtCore to initialize it shouldn't be an issue. https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-3.1&tabs=visual-studio

Johannes Jacobs

@johmarjac

@Armarr Can I use the DI on the ConfigureServices already to call a Contract Interface which tells the service to execute?

or how wuld you approach

because the service would be one in an extension

Armarr

@Armarr

Yeah, sounds about right

Caesar moussalli

@CaesarMoussalli_twitter

How to replace a dll (in case of new version update) while the host application is running ? I don't want to stop the host app cause this will stop all the modules

Johannes Jacobs

@johmarjac

is it possible that an extension can use the Shared Layout from the Host Application? I think it is kinda redundant having the layout separate for each extension the host is loading.

Alok Sharma

@aloksharma1

have anyone used plugin architecture in a microservice environment powered by angular or react... my frontend is angular for my next project, so instead of razor views i will need to use angular/react (possibly).. any reference or help is very much appreciated

Armarr

@Armarr

@aloksharma1 ExtCore can make your WebApi back-end modular but it will not help you in splitting up the front-end.
There's a discussion about this here: ExtCore/ExtCore#164

Alok Sharma

@aloksharma1

@Armarr thanks for the reply, i found something called ngmodule plugin architecture but i am checking if extcore will be able to handle it in modular design

Alok Sharma

@aloksharma1

how to handle viewcomponents in extcore sitting in a plugin?

Alok Sharma

@aloksharma1

is hot reload available now with 3.1 update or its still a wip?

Trk Kcm

@tarkankocaman1919_gitlab

C#(game) algorithm open source code,How can I assure the samples..or paid.?

Benjamin Nolmans

@Xarkam

@aloksharma1 hi, no hot reload not available. I've proposed a full transitional netcore 3.1 before make change for net 5.0. @DmitrySikorsky is very fully occupied with his work. I don't know when my pullrequest will be validated. With the future net 5.0 version, I will see with him how we could work on a hotreload

Dmitry Sikorsky

@DmitrySikorsky

Hi guys, I've updated ExtCore to use .NET 5.0. It was very easy, it worked just after changing target frameworks... It is release as 6.0.0-beta1: https://github.com/ExtCore/ExtCore/releases/tag/6.0.0-beta1

Paris

@angaratosurion

ihave a problem with the migration part of thedatamodels

the class public class DesignTimeStorageContextFactory : DesignTimeStorageContextFactoryBase<SlimeDbContext>
{
}

doesnt like the applciation context

Paris

@angaratosurion

that it implements the : IdentityDbContext<ApplicationUser, ApplicationRole, int>, IStorageContext classes and interfaces any idea what it needs to be changed?

Reza E Rabby

@Reza-E-Rabby

Hello Dmitry. Recently working with ExtCore 5 and having a trouble switching to Extensions.

Hello Dmitry. Recently working with ExtCore 5 and having a trouble switching to Extensions.
The Startup.cs of my inner project is not recognized by the Project. So Dependency Injection not working

Reza E Rabby

@Reza-E-Rabby

Please answer if anyone sees this

Dmitry Sikorsky

@DmitrySikorsky

@Reza-E-Rabby hi! Could you share some details about the problem?

Dmitry Sikorsky

@DmitrySikorsky

ExtCore 6.0.0 is released: https://github.com/ExtCore/ExtCore/releases/tag/6.0.0

Alok Sharma

@aloksharma1

guys @Xarkam were you able to make hotreload available in new release?

Dmitry Sikorsky

@DmitrySikorsky

Hi, if you like the project you can now support its development on Patreon: https://www.patreon.com/dmitry_sikorsky

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