Chapter 12: User-Defined Policies

API Connect (APIC) is designed to provide a user-friendly, drag and drop experience for creating APIs within the Assembly screen of the graphical user interface (GUI). This provides a very efficient means to create, expose, and secure your APIs without having to know all of the underlying details. In most cases, the work is done for you under the hood. APIC provides a plethora of policies that can be used within the processing of your API requests and responses, ranging from transformations to custom code (XSLT or GatewayScript), to validation policies. Although this drag and drop functionality provides a simple interface to get your APIs created quickly, there may be times when you might feel a little restricted and want to customize your own policies. Perhaps you have a set of built-in policies that you use throughout many of your APIs and would like to package up as one reusable policy. Or maybe you are very familiar with the DataPower product itself...