Cannot extract value from URI path

[pimonnat]

I have a proxy with base path "{host}/myapiTest/v1"

and I add a new api in this proxy with full path "{host}/myapiTest/v1/myapi/update/1234"

then I try to get the value 1234 with a block of code below in Extract Variable Policy

<URIPath>
     <Pattern ignoreCase="true">/myapi/*/{id}</Pattern>
</URIPath>

After that, I print the {id} but the value is null.

So I try to change path of this api to "{host}/myapiTest/v1/apitest/update/1234" and finally I got the value of {id}.

I know that I can use the js code to get the {id} from "{host}/myapiTest/v1/myapi/update/1234" but I'm curious about this problem.

If anyone have the information, please tell me. 

Thank you.

[dchiesa1]

I am not sure if you can use a * within the Pattern.  Even if you don't need that part of the URI, just extract it, and ignore it. 

This works for me. 

<ExtractVariables name="EV-GetUriPathElements-2">
   <URIPath name="proxy.url">
      <Pattern ignoreCase="true">/myapi/{action}/{id}</Pattern>
   </URIPath>
</ExtractVariables>

Working Example

$ curl -i $endpoint/ev-uripath/myapi/update/1234
HTTP/1.1 200 OK
Date: Tue, 13 Jul 2021 00:41:32 GMT
Content-Type: application/json
Content-Length: 40
Connection: keep-alive
APIProxy: ev-uripath r1

{
  "action": "update",
  "id": "1234"
}

 Please find the working proxy attached.