Remove a service in ASP.Net Core Dependency Injection [duplicate]

You can use normal collection API to remove your services:

services.AddScoped<IService>();

var serviceDescriptor = services.FirstOrDefault(descriptor => descriptor.ServiceType == typeof(IService));
services.Remove(serviceDescriptor);

Also you can create extension methods to achieve the same:

public static class ServiceCollectionExtensions
{
    public static IServiceCollection Remove<T>(this IServiceCollection services)
    {
        if (services.IsReadOnly)
        {
            throw new ReadOnlyException($"{nameof(services)} is read only");
        }

        var serviceDescriptor = services.FirstOrDefault(descriptor => descriptor.ServiceType == typeof(T));
        if (serviceDescriptor != null) services.Remove(serviceDescriptor);

        return services;
    }
}