On an HTTPTrigger can the Route value be set to an empty string?

Question

In Azure Functions I have a host setup like the below:

{
  "version": "2.0",
  "logging": {
    ...
    }
  },
  "extensions": {
    "http": {
      "routePrefix": "api/test"
    }
  }
}

I want to setup an http trigger that will have an empty route, IE: the endpoint would be api/test/ No route appears to default to the function name and the docs are not conclusive if an empty string as route will work? Is there a way to achieve this?

Sample HttpTrigger:

[Function("HttpFunction")]
public IActionResult Run(
	// should be called with `api/test/`
    [HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "")] HttpRequest req)
{
    return new OkObjectResult($"This was called with `api/test/`");
}

Answer 1

You can do the below which should work to set an empty route on an HttpTrigger

Route = "{x:regex(^$)?}"