Actions require unique method/path combination for Swagger

You can resolve it as follows:

services.AddSwaggerGen (c =>
  {
    other configs;
    c.ResolveConflictingActions (apiDescriptions => apiDescriptions.First ());
  });
//in the Startup.cs class in the ConfigureServices method

or you can put routes to differentiate your methods, for example:

[HttpGet("~/getsomething")]
[HttpGet("~/getothersomething")]