Web Feature service

Creating a request to access a layer through WFS is not so different from WMS. However, the output is very different; with WFS, you get a vector representation of the data in a textual or binary format. The following code snippet is a request for the Packt:places layer:

     http://localhost:8080/geoserver/Packt/ows? 
     service=WFS& 
     version=1.0.0& 
     request=GetFeature& 
     typeName=Packt:places& 
     maxFeatures=50& 
     outputFormat=text/xml; subtype=gml/2.1.2 

As we did previously with WMS, we are now going to discuss each parameter:

Parameter	Description
service	Explains to GeoServer what kind of request you are sending. The value is WFS as we want to retrieve a vector representation of the data.
version	Indicates the specific version of WFS you want to use.
request	Defines what operation you are requesting, among those supported by the service, GetFeature is the basic request to obtain data.
typeName	Specifies what layer should be used to...