Node.DPWS: Efficient Web Services for the Internet of Things

Interconnected computing systems in various forms will soon permeate our lives, realizing the Internet of Things (IoT) and letting us enjoy novel, enhanced services that promise to improve our everyday life. Nevertheless, this new reality introduces significant challenges in terms of performance, scaling, usability, and interoperability. Leveraging the benefits of service-oriented architectures (SOAs) can help alleviate many of the issues that developers, implementers, and users alike must face in the context of the IoT. Node.DPWS is a novel implementation of the Devices Profile for Web Services (DPWS) based on the Node.js platform. It comprises the first set of DPWS libraries available to Node.js developers and can be used to deploy lightweight, efficient, and scalable Web services over heterogeneous nodes, including devices with limited resources. A performance evaluation on typical embedded devices validated the benefits of Node.DPWS compared to alternative DPWS libraries.