How to construct a WFS 2.0 GetCapabilities XML request to Geoserver?

Question

I am trying to use WFS 2.0 specifically because it supports temporal filtering. My GetCapabilities.xml file is

<GetCapabilities
version="2.0"
service="WFS"
xmlns="http://www.opengis.net/wfs"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wfs
http://schemas.opengis.net/wfs/2.0/wfs.xsd"/>

I use curl to make the request i.e.

curl -X POST -H "Content-type: application/gml+xml;version=3.2" -d @GetCapabilities.xml http://ws-beta.int.unavco.org:9090/geoserver/wfs 

But I receive the error:

<ows:ExceptionReport xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0.0" xsi:schemaLocation="http://www.opengis.net/ows/1.1 http://ws-beta.int.unavco.org:9090/geoserver/schemas/ows/1.1.0/owsAll.xsd">
  <ows:Exception exceptionCode="NoApplicableCode">
    <ows:ExceptionText>java.lang.IllegalArgumentException: java.lang.ClassCastException@44895b09
java.lang.ClassCastException@44895b09</ows:ExceptionText>
  </ows:Exception>
</ows:ExceptionReport>

I know the problem is almost certainly in my construction of the XML file because it works over HTTP:

http://my.geoserver.url/geoserver/wfs?service=wfs&version=2.0.0&request=GetCapabilities

I seek a working version of GetCapabilities.xml for WFS 2.0.

I have also tried using GET rather than POST, i.e.

curl -X GET -H "Content-type: application/gml+xml;version=3.2" -d @GetCapabilities.xml http://ws-beta.int.unavco.org:9090/geoserver/wfs 

I get a different error in this case:

<ows:ExceptionReport xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0.0" xsi:schemaLocation="http://www.opengis.net/ows/1.1 http://ws-beta.int.unavco.org:9090/geoserver/schemas/ows/1.1.0/owsAll.xsd">
  <ows:Exception exceptionCode="MissingParameterValue" locator="request">
    <ows:ExceptionText>Could not determine geoserver request from http request org.geoserver.platform.AdvancedDispatchFilter$AdvancedDispatchHttpRequest@66acc6c5</ows:ExceptionText>
  </ows:Exception>
</ows:ExceptionReport>

Answer 1

Short answer: The primary place to search information about how to use WFS standard is the standart itself.

Have a look at the current WFS 2.0.2 standard at http://docs.opengeospatial.org/is/09-025r2/09-025r2.html and from the section B.7 GetCapabilities example you can find this.

<?xml version="1.0" ?>
<GetCapabilities
   service="WFS"
   version="2.0.2"
   xmlns="http://www.opengis.net/wfs/2.0"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.opengis.net/wfs/2.0
                       http://schemas.opengis.net/wfs/2.0/wfs.xsd"/>

I tested that request document with the demo request utility that comes with GeoServer and it did work. I had to remove the line <?xml version="1.0" ?>" I guess because the application is adding it automatically. Using version 2.0.2 that GeoServer does not support was not critical but GeoServer answered with the highest version that it supports, 2.0.0.

Then I saved the XML from the WFS standard as is into a file and used your curl command with my local GeoServer

curl -X POST -H "Content-type: application/gml+xml;version=3.2" -d @GetCapabilities.xml http://localhost:8080/geoserver/wfs

That worked as well.

Answer 2

The 1.0.0 and 1.1.0 requests didn't include the version in the namespace, but 2.0.0 requires it (tested with GeoServer 2.10.1): xmlns="http://www.opengis.net/wfs/2.0".