EF Core Interceptors #10982 | Support Center

zyrel.sermon created 2 years ago

Hi,

Is there any tutorial or documentation on how to implement interception logic in EF Core? Is there a retry mechanism in anz for creating connections in the database? we are using v8.2.0.0

Thanks

20 Answer(s)

0

ismcagdas created 2 years ago
Support Team

Hi @zyrel.sermon

Could you share what would you like to achive by interception ? We can offer you a solution accordingly.

Thanks
0

zyrel.sermon created 2 years ago

We are having peak connection issues on our azure servers, based on the recommendation of the azure engineer, they recommend to implement a interception login in EF core if there is none, that's why we are asking if there is a documentation of interception in anz? Or is it already implemented in anz version 8.2.0.0? And is there a retry mechanism in anz for creating connections in the database? Please advise.

Thanks
0
ismcagdas created 2 years ago
Support Team
Hi @zyrel.sermon

AspNet Zero doesn't have EF Core interceptors. I couldn't understand how this will help to solve the problem you are having. Before implementing EF Core interceptors, could you try the steps below;

Update your ABP pacakges to 6.6.2 or to latest 7.x version.

Implement changes in https://github.com/aspnetzero/aspnet-zero-core/pull/4234

Thanks,
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

thanks for the response, we will check this. How about the retry mechanism if there is failure in creating connection in the database is it already implemented in anz?

Thanks,
0

ismcagdas created 2 years ago
Support Team

Hi,

Currently, AspNet Zero doesn't support the retry mechanism. You can follow https://github.com/aspnetboilerplate/aspnetboilerplate/issues/3221 for that feature.
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

We will try to implement first the changes on jwt validation and we'll update you once soon.

Thanks
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

Code changes are applied and abp packages are already updated but we've encountered some errors when building the project. Attached is the screenshot of the error, please advise, thanks
0

ismcagdas created 2 years ago
Support Team

Please use only Abp.AspNetCore.SignalR if your project is an ASP.NET Core (.NET Core) project. If it is an ASP.NET MVC 5.x app (.NET 4.6.1), use only Abp.Web.SignalR package.
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

We already remove the Abp.Web.SignalR since our project is an ASP.NET Core (.NET Core) but we still encountered some issues Please advise. Thanks
0

ismcagdas created 2 years ago
Support Team

Hi @zyrel.sermon

Could you open NuGet Package Manager and see if you have any packages listed under Consolidate tab ? I think you have some packages with different versions in your project.
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

i've already updated the version of the packages but when building the project i've encounter this issue please advise, Thanks

ismcagdas created 2 years ago

Support Team

Hi,

Please inject below item to your Exception class and provide it to the constructor as the 3rd parameter

public class SprintTekExceptionFilter: AbpExceptionFilter{

    public SprintTekExceptionFilter(IErrorInfoBuilder errorInfoBuilder,
            IAbpAspNetCoreConfiguration configuration,
            IAbpWebCommonModuleConfiguration abpWebCommonModuleConfiguration): base(errorInfoBuilder, configuration, abpWebCommonModuleConfiguration) {
    
    }

}

0

zyrel.sermon created 2 years ago

Hi @ismcagdas

tried injecting the item based on what you've suggested but after building the project here's what i've got tried adding migration also, its possible that it's just missing a migration but here's the error when adding migration Am i missing something?

Please advise, Thanks
0

ismcagdas created 2 years ago
Support Team

Hi,

Please add a new migration to your app using "dotnet ef migrations add MIGRATION_NAME" and then update your local database using "dotnet ef database update" and try again.

Thanks,

zyrel.sermon created 2 years ago

Hi @ismcagdas,

I'm running the command on the package manager console of visual studio, as you can see the the build started and succeeded but encounters and error

PM> add-migration
cmdlet Add-Migration at command pipeline position 1
Supply values for the following parameters:
Name: test
Build started...
Build succeeded.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.TypeLoadException: Could not load type 'Microsoft.EntityFrameworkCore.Internal.SemanticVersionComparer' from assembly 'Microsoft.EntityFrameworkCore, Version=6.0.3.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor..ctor(IOperationReportHandler reportHandler, IDictionary args)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Span`1& arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture)
   at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
   at System.Activator.CreateInstance(Type type, Object[] args)
   at Microsoft.EntityFrameworkCore.Tools.ReflectionOperationExecutor..ctor(String assembly, String startupAssembly, String projectDir, String dataDirectory, String rootNamespace, String language)
   at Microsoft.EntityFrameworkCore.Tools.Commands.ProjectCommandBase.CreateExecutor()
   at Microsoft.EntityFrameworkCore.Tools.Commands.MigrationsAddCommand.Execute()
   at Microsoft.EntityFrameworkCore.Tools.Commands.CommandBase.&lt;&gt;c__DisplayClass0_0.&lt;Configure&gt;b__0()
   at Microsoft.DotNet.Cli.CommandLine.CommandLineApplication.Execute(String[] args)
   at Microsoft.EntityFrameworkCore.Tools.Program.Main(String[] args)
Exception has been thrown by the target of an invocation.

it is possible that there are packages affected internally when we updated the ff:?

Update your ABP pacakges to 6.6.2 or to latest 7.x version.
Implement changes in https://github.com/aspnetzero/aspnet-zero-core/pull/4234

Please advise, thanks

0

ismcagdas created 2 years ago
Support Team

Hi @zyrel.sermon

Is it possible to share your project via email with us ? We can fix these problems for you faster in that way. If that is possible, please share your project with [email protected].

Thanks,
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

Project file sent to [email protected]

Kindly check on your end, Thanks
0

ismcagdas created 2 years ago
Support Team

Hi @zyrel.sermon

I have replied to your email. We can continue via email.
0

zyrel.sermon created 2 years ago

Hi @ismcagdas

I've already sent the updated project file via email. Thanks
0

ismcagdas created 2 years ago
Support Team

Hi @zyrel.sermon

Thanks, replied to your email.

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