Net Core Dependency Injection for Non-Controller

Question

Seems crazy that something like this is causing me such a headache. But here it is:

How do you use the built-in dependency injection for net core for a non-controll

Answer 1

Just make the class a service.

In startup.cs

services.AddScoped();

Then in controller, same as you do for other services:

private readonly AccountBusinessLayer _ABL;

Include in constructor as you do for other services:

 public AccountController(
    UserManager userManager,
    SignInManager signInManager,IOptions identityCookieOptions,
    IEmailSender emailSender,
    ISmsSender smsSender,
    ILoggerFactory loggerFactory,
    RoleManager roleManager,
    AccountBusinessLayer ABL
  )
{
  _userManager = userManager;
  _signInManager = signInManager;
  _externalCookieScheme = identityCookieOptions.Value.ExternalCookieAuthenticationScheme;
  _emailSender = emailSender;
  _smsSender = smsSender;
  _logger = loggerFactory.CreateLogger();
  _roleManager = roleManager;
  _ABL = ABL;
}