Using different WFS versions in OpenLayers
You are probably comfortable with WMS and including WMS layers in a web application. When you need more control over your data, it's time to switch to WFS.
Unlike WMS, a WFS request brings you the actual raw data in the form of features. By working with the features directly, you are no more dealing with a static rendering of features, that is, a map; you can take fine control of the shapes by setting drawing rules on the client side.
WFS comes in several different flavors or, more precisely, in different protocol versions. GeoServer supports 1.0.0, 1.1.0, and 2.0.0. Each version differs in the formats supported and the query capabilities supported. For example, WFS 2.0.0 supports the use of temporal queries ...
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