Nswag: Pass complex types as HTTPGET parameters

[UID-MS]

Hi!
I´d like to pass a custom Filter-object to my controller method GET(Filter filter).
I have learned that setting the annotation
[HttpGet("{filter:Filter}")]
public async IActionResult Get(Filter filter)
{...}
creates a client that expects a Filter-object correctly (instead of each filter-property).
But in server I get a System.InvalidOperationException
see:
https://stackoverflow.com/questions/51423435/asp-net-core-webapi-httpget-passing-complex-type

What am I missing here?

[RicoSuter]

Swagger cannot describe complex parameters for GET (this is an ASP.NET (Core) model binder feature) and thus you'll end up with lot's of normal query parameters...

[UID-MS]

You´re right! Your answer led me to the solution.
In my case I had to add the [FromRoute]-Attribute
to the controller method argument. Runs perfectly!

Thank you!