WSO2 Mashup Server Screencast #3: Service Composition

Jonathan Marsh, Director of Mashup Technologies for WSO2, continues development of a podcast statistics mashup, augmenting it with an ongoing history of the podcast download count. Shows how code can be periodically executed to monitor changes, and an XML structure representing the history to be built up over time. Demonstrates generating, importing and using Javascript stubs to compose the Web scraping service with an external storage service. Annotations for operation “safety” are explored, including their effect on the HTTP binding in exposing the service RESTfully.

Related Resources:

1. WSO2 Mashup Server Screencast: "Hello, World!"
2. WSO2 Mashup Server Screencast Series: #2 Web Scraping