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Unhandled exception. System.AggregateException: Some services are not able to be constructed #119

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Unhandled exception. System.AggregateException: Some services are not able to be constructed#119

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@0llirocks
0llirocks
opened on Jan 15, 2026

.NET Version: 10.0
SecurityKey Version: 4.0.0

I created a custom validator like in the documentation and added the following config to program.cs

builder.Services.AddScoped<IApiUserRepository, ApiUserRepository>();
builder.Services.AddSecurityKey<DatabaseSecurityKeyValidator>();

My implementation is almost 100% like in the example except it is called ApiUser instead of ApiKey. Once I run my program I get the following:

Unhandled exception. System.AggregateException: Some services are not able to be constructed (Error while validating the service descriptor 'ServiceType: AspNetCore.SecurityKey.ISecurityKeyValidator Lifetime: Singleton ImplementationType: Services.DatabaseSecurityKeyValidator': Cannot consume scoped service 'Interfaces.IApiUserRepository' from singleton 'AspNetCore.SecurityKey.ISecurityKeyValidator'.) (Error while validating the service descriptor 'ServiceType: AspNetCore.SecurityKey.SecurityKeyAuthorizationFilter Lifetime: Singleton ImplementationType: AspNetCore.SecurityKey.SecurityKeyAuthorizationFilter': Cannot consume scoped service 'Interfaces.IApiUserRepository' from singleton 'AspNetCore.SecurityKey.ISecurityKeyValidator'.) (Error while validating the service descriptor 'ServiceType: AspNetCore.SecurityKey.SecurityKeyAuthenticationHandler Lifetime: Transient ImplementationType: AspNetCore.SecurityKey.SecurityKeyAuthenticationHandler': Cannot consume scoped service 'Interfaces.IApiUserRepository' from singleton 'AspNetCore.SecurityKey.ISecurityKeyValidator'.)

Am I missing something?

BTW when I use AddSecurityKey without my own validator everything works as expected.

Activity

  1. 0llirocks commented on Jan 15, 2026

    @0llirocks
    0llirocks
    on Jan 15, 2026
    Author

    I think the documentation is not 100% correct, passing a scoped repository will always throw that exception. Unless I did a mistake the following works and should be the correct way:

    public class DatabaseSecurityKeyValidator : ISecurityKeyValidator
{
    private readonly ILogger _logger;
    private readonly IServiceProvider _serviceProvider;

    public DatabaseSecurityKeyValidator(IServiceProvider serviceProvider, ILogger<DatabaseSecurityKeyValidator> logger)
    {
        _serviceProvider = serviceProvider;
        _logger = logger;
    }
}

    using var scope = _serviceProvider.CreateScope();
var repository = scope.ServiceProvider.GetRequiredService<IApiUserRepository>();
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