ASP.NET Core MVC consuming Internal Web API without using Http request

Question

I'm using ASP.NET Core MVC and Web API and trying to consume the internal Web API (done using ApiController, prepare for future cross-platform application use), I saw an answer which doesn't need to use HttpClient or any Http Request features to get data from Web API, refer: Consuming web api controller action from mvc controller

I'm trying to do the similar thing, but my auto generated Web API Controller comes with DBContext parameter, which causing me unable to follow what is mentioned from the link.

Below is what i have in my Controller which caused me unable to follow actions mentioned in the link above:

    private readonly MyTestDBContext _context;

    public MfgProductsController(MyTestDBContext context)
    {
        _context = context;
    }

If the "MyTestDBContext context" parameter supposed to remain, what should I write in my Controller in order to pass the DBContext in?

Or if there's a way to remove "MyTestDBContext context" from the parameter, how the constructor supposed to change to?

mxmissile's answer will work, but I think it'd make more sense to refactor the code you're calling into a service that both your MVC and Web API controllers depend on, and call that instead rather than going through the controller. Depending on a controller feels wrong. — Rup
– Rup, Commented Aug 6, 2019 at 14:17
@Rup Is there any example for what you have mentioned? Sorry I'm new to this. I tried mxmissile's suggestion but I get another error. InvalidOperationException: Unable to resolve service for type 'WebApplication4.Controllers.MfgProductsController' while attempting to activate — Jeff Tung
– Jeff Tung, Commented Aug 7, 2019 at 0:17

mxmissile · Accepted Answer · 2019-08-06 14:14:36Z

2

Let the container do its job, just add the controller as a dependency in your controller:

public class MyController : Controller
{
    public MyController(MfgProductsController productsController) 
    {
        _productsController = productsController;
    }

    private readonly MfgProductsController _productsController;    
}

It should fill all dependencies for you.

answered Aug 6, 2019 at 14:14

mxmissile

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