Time for action – exploring Demo requests

You learned that WMS, WFS, and WCS are standards describing the interaction among clients and servers. Each standard defines a set of operations that, from a client's point of view, are requests. On the OGC site, you can download detailed documents describing each admitted request. The demo application is a valuable tool to help you practice with requests. Let's explore some basic operations:

1. Open the Demo requests application. The page is similar to the Style Editor. From the drop-down list, you can select a set of prepared requests. They are listed with a syntax declaring the standard as a prefix and the standard's version as a suffix. Choose WFS_getCapabilities-1.1.xml.

   

2. Press the Submit button. A new panel shows, and after a while it lists the XML response from GeoServer.

   

3. Another basic WFS operation is getFeature, which will retrieve a feature for you. Select WFS_getFeature-1.1.xml. If you look at the XML code, you can see a clear reference to the...