redirect one POST query to another with the same params .NET Core Web API - .net-core

Question

I have .NET Core Web API app. And I have 3 API endpoints:
"/a", "/b", "/c" that accept the same parameters (Form parameters with files).
So, user do request to "/a", I check some conditions and need to redirect him to "/b" or "/c" with the same (Form data with files) parameters.
The important thing: user can also execute "/b" or "/c" separately without request to "/a". Also I need to redirect user to "/b" or "/c" inside "/a", so no response I wait for from "/a" or, in other words, response from "/a" = redirection to other endpoint.
Is there way to do it?

Answer 1

You can't redirect to a different Web API endpoint, but you can do one of those:
User requests "/a", and you give him a response containing the URL/URLs to "/b" or "/c".
You have implemented a service and your controllers are logically clean. So in the controller, you only do the check which service method you should call "/a", "/b" or "/c".
Edit3:
I highly recommend option 2, because you've mentioned that you have 3 controller actions that have the same input data. So your best way to do it is to have only one action and inside it call your service methods A, B or C depending on the input data.
Edit2:
First option pseudo-code:
[HttpPost("/a")]
public ActionResult<DefaultResponseModel> Verify(MyInputModel myModel)
{
MyResponse response = new MyResponse();
if(myModel.MyProperty1 == "something")
{
response.RedirectURL = "https://myurl/a"
}
else if(myModel.MyProperty1 == "other")
{
response.RedirectURL = "https://myurl/b"
}
else
{
response.RedirectURL = "https://myurl/c"
}
return Ok(respomse);
}
Edit:
Example of how to do the second option.
In your Startup.cs file in the ConfigureServices method you register a service like this:
services.AddTransient<IMyService, MyService>();
In your controller you inject it via dependency injection:
public class BusinessController : ControllerBase
{
private readonly IMyService businessService;
public BusinessController(IMyService businessService)
{
this.businessService = businessService;
}
// the actions are below..
// code here
}
And then let's say in your desired action called "/a"
[HttpPost("/a")]
public ActionResult<DefaultResponseModel> Verify(MyInputModel myModel)
{
if(myModel.MyProperty1 == "something")
{
var response = this.businessService.A(myModel)
}
else if(myModel.MyProperty1 == "other")
{
var response = this.businessService.B(myModel)
}
else
{
var response = this.businessService.C(myModel)
}
}
And don't forget to create the service and the implementation.
public interface IMyService
{
ResponseModel A(MyInputModel myModel);
ResponseModel B(MyInputModel myModel);
ResponseModel C(MyInputModel myModel);
}
And the implementations of the service:
public class MyService : IMyService
{
enter code here
}