Describe the bug

Supposed I have the following action in the controller:

[HttpGet("GetProductPrices(organizationId={organizationId},partId={partId})")]
public IActionResult GetPrice(string organizationId, string partId)
{
   // ....
}

The following request works fine:

https://{{url}}/GetProductPrices(organizationId='10001',partId='100000-01')  <-- Working 

The following request can't work. (Be noted, there's a whitespace between parameters)

https://{{url}}/GetProductPrice(organizationId='10001', partId='100000-01')  <-- This does not work and gets a 404 Not Found response

I'd like to learn :

1. GetProductPrices(organizationId={organizationId},partId={partId}) is correct pattern?
2. A whitespace between parameters is not allowed?
3. If I put a whitespace between route template, For example, GetProductPrices(organizationId={organizationId}, partId={partId}), we have to match the whitespace in the request URI?