Author: Wilde, F.
Paper Title Page
WESH3003 Waltz - A Platform for Tango Controls Web Applications 1519
WEPHA172   use link to see paper's listing under its alternate paper code  
  • I. Khokhriakov, F. Wilde
    HZG, Geesthacht, Germany
  • O. Merkulova
    IK, Moscow, Russia
  Funding: Tango Controls Collaboration, contract 2018, PO 712608/WP1&WP2
The idea of creating Tango web platform was born at Tango Users Meeting in 2013, later a feature request was defined (v10 roadmap #6) – provide a generic web application for browsing and monitoring Tango devices. The work started in 2017* and a name Waltz was selected by voting at Tango Users meeting #32. Waltz is the result of joint efforts of Tango Community, HZG and IK. This paper gives an overview of Waltz as a platform for Tango web applications, the overall framework architecture and presents an end result of real-life applications**. The work shows that having Waltz platform web developer can intuitively and quickly create full web application for his/her needs. Different architectural layers provide maintainability. The platform has a number of abstractions and ready-to-use widgets that can be used by web developer to quickly produce web based solutions. Among Waltz features are user context saving, device control and monitoring, plot and drag-n-drop interface solutions. Communication with Tango happens via Tango REST API using HTTP/2.0 and Server-Sent Events. Waltz can be also treated as a system for device monitoring and control from any part of the world.
*Andrew Goetz, et al., TANGO Kernel Development Status, ICALEPCS2017
**Matteo Canzari, et al., A GUI prototype for SKA1 TM Services: compliance with user-centered design approach, Proc. SPIE 10707
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About • paper received ※ 19 July 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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