Using dependency injection which as great Scott says: "is available in a consistent way throughout the entire web stack"

[developer1998]

So I enable it inside Startup.cs as so:

services.AddSingleton < IClientPackagesRepository, ClientPackagesRepository > () ;

I can do the injection on Controller level using

private readonly IClientPackagesRepository _repository;
public HomeController(IClientPackagesRepository repository)

I can do the injection as well on View level using

@inject IClientPackagesRepository repository;

What about if I want to do the injection right in Startup.cs?
I cannot figure out how to do it, and according to great Scott says in
https://weblogs.asp.net/scottgu/introducing-asp-net-5
I should be able.
I am thinking along the lines

app.UseServices...

Thanks for your help.

[danieltharris]

Another way is to use the [Activate] attribute if you want to do property injection too, I believe.

When you pass your dependency into the constructor for your controller, the Dependency Resolver is resolving and passing in your dependency when the controller is constructed.

Can you give an example of what you mean by doing the injection in Startup.cs and what the context is for what you're wanting to do?

[Eilon]

What do you mean by "doing the injection right in Startup.cs"? What type of code are you imagining?

[developer1998]

I need to populate this singleton with data right in Startup.cs. Is that even possible is the question? Reason for this because I need to access that data in many places, and Startup.cs is the best place that I can think off.

[davidfowl]

Configure is injected.

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddSingleton<IClientPackagesRepository, ClientPackagesRepository> () ;
    }

    public void Configure(IApplicationBuilder app, IClientPackagesRepository repo)
    {
    }
}

Anything you add as a service is available in the Configure method. So yes, "is available in a consistent way throughout the entire web stack"

[developer1998]

David it works!!! Thank you so much, and I've learned also that Configure accepts dynamic parameters, which is amazing... You guys are doing great job.

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerfactory, IClientPackagesRepository repo)

[davidfowl]

Yep, any service provided by the host or by services you added are accessible.