Web API optional parameters

Question

I have a controller with the following signature:

[Route(\"products/filter/{apc=apc}/{xpc=xpc}/{sku=sku}\")]
public IHttpActionResult Get(string apc, string          


        

Answer 1

Sku is an int, can't be defaulted to string "sku". Please check Optional URI Parameters and Default Values

Answer 2

I figured it out. I was using a bad example I found in the past of how to map query string to the method parameters.

In case anyone else needs it, in order to have optional parameters in a query string such as:

• ~/api/products/filter?apc=AA&xpc=BB
• ~/api/products/filter?sku=7199123

you would use:

[Route("products/filter/{apc?}/{xpc?}/{sku?}")]
public IHttpActionResult Get(string apc = null, string xpc = null, int? sku = null)
{ ... }

It seems odd to have to define default values for the method parameters when these types already have a default.

Answer 3

you need only set default value to parameters(you do not need the Route attribute):

public IHttpActionResult Get(string apc = null, string xpc = null, int? sku = null)
{ ... }