A target is an ip address/hostname with a port that identifies an instance of a backend service. Every upstream can have many targets, and the targets can be dynamically added. Changes are effectuated on the fly. Because the upstream maintains a history of target changes, the targets cannot be deleted or modified. To disable a target, post a new one with weight=0; alternatively, use the DELETE convenience method to accomplish the same. The current target object definition is the one with the latest created_at.

Checkout Kong documentation for the meaning of the form parameters.