C# HttpGet syntax for array variable - tried {values:double[]} complains about brackets

Question

[HttpGet("CalibrationModelFile/{networkID:int}/{ConstituentID:int}/{values:double[]}/UpdateLimits")]

I have to send in an array of doubles obviously. My function works fine if I pass in individual values like:

{value1: double}/{value2: double}/ etc

But that is pretty lame and I can have a lot of values to send. When I try to place the call, the server gets the following error (the relevant part):

Sorry for the tiny image.

I can't find documentation anywhere that helps. Any ideas?

Thanks in advance, Chuck ("Yogi")

Answer 1

Double[] isn't one of the accepted types for constraint. The important thing to note is that these are only constraints, not true type specifiers. We can just say we want values, and specify in the arguments that it is a double[]. See the documentation for a list of built-in constraints.

You can do this most easily by using the FromRoute attribute. Specify the type in the arguments rather than the route.

[HttpGet]
[Route("CalibrationModelFile/{networkID:int}/{ConstituentID:int}/{values}/UpdateLimits")]
public IActionResult GetThing([FromRoute(Name = "values")] double[] values)
{
      return new OkObjectResult(values);
}

Then call like

http://localhost:5000/api/CalibrationModelFile/12/13/5,2,3,4/UpdateLimits

Returns

[
  5234
]