[SOLVED] How do I automatically add my service registration to the di container

How do I automatically add my service registration to the di container

I want to automate adding services to di container. Here in my ServiceRegistration class:

builder.Services.AddScoped<ICategoryService, CategoryService>();
builder.Services.AddScoped<IProductDetailService, ProductDetailService>();
builder.Services.AddScoped<IProductImageService, ProductImageService>();
builder.Services.AddScoped<IProductService, ProductService>();
...

I don't want to add like this, I want to mark each of my service classes with an attribute and find this class and find the interface that the class I found implements and add it to di container automatically. How do I do this? Or do you have a better solution?

I don't want to add my services manually, I want to do it automatically

Solution

You can use Reflection:

var components =
    from type in typeof(CategoryService).Assembly.GetTypes()
    where type.Name.EndsWith("Service")
    where !type.IsAbstract && !type.IsGenenicTypeDefinition
    where type.GetInterfaces().Count() == 1
    select { Service = type.GetInterfaces().Single(), Implementation = type };

foreach (var component in components)
{
    services.AddScoped(component.Service, component.Implementation);
}

There are also extensions to MS.DI available that can simplify this task, such as Scrutor.