We have identified some of the technologies that underly the Apigee Platform and added links to a sampe of online training resources. This is a sample and not meant to represent conclusive training and Apigee is not recommending these links over other training offerings. These resources are intended to help you get started and to understand the breadth of the opportunity to leverage the platform to it's fullest potential.
Introduction to XML (W3 Schools)
What is SOAP? (W3 Schools)
Apigee's Developer Portal is built on Drupal
Programming XML in Java Tutorial