RESTful Service Composition with JOpera

Publication Type  Talk
Year of Publication  2010
Authors  Pautasso, C.
Date Published  21.05.2010
Place Published  Politecnico di Milano, Italy
Abstract  Next generation Web services technologies challenge the assumptions made by current standards for process-based service composition. For example, most existing RESTful Web service APIs cannot natively be composed using the WS-BPEL standard. In this talk we apply the notion of composition to RESTful services and discuss the conceptual relationship between business processes and stateful resources. Our goal is to enable lightweight access to service compositions published with a RESTful API. We show that the uniform interface and the hyper-linking capabilities of RESTful services provide an excellent abstraction for publishing proceses as a resource and exposing in a controlled way the execution state of a service composition. To do so, we present how to build a composite application (DoodleMap) out of some well-known, public and currently existing RESTful service APIs.
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