I’ve got an HttpGet on an API method with primitive parameters and would like to provide the option of passing parameters via the query OR route. I’ve just trashed half a day building various custom binders and such trying to figure this out to no avail.

I’d like this method to work with both /GetMyData/1 and /GetMyData?id=1

[HttpGet]
[Route("GetMyData/{id}")]
public async Task<ActionResult> GetMyData(int id)
{
    return await _dataService.GetMyData(id).ConfigureAwait(false);
}

If I set to [Route("GetMyData")] then /GetMyData?id=1 works. If I set to [Route("GetMyData/{id}")] then /GetMyData/1 works. But if I have [Route("GetMyData")][Route("GetMyData/{id}")] then only /GetMyData/1 works.

What am I missing here? I’m working with an ApiController in .NET Core 8.