This presentation is Part 3 of the EWD 3 Training Course. It summarises the suite of Node.js Modules that constitute EWD 3

1. Copyright © 2016 M/Gateway Developments Ltd
EWD 3 Training Course
Part 3
Summary of EWD 3 Modules
Rob Tweed
Director, M/Gateway Developments Ltd
Twitter: @rtweed

2. Copyright © 2016 M/Gateway Developments Ltd
EWD 3 Modules
• Core Modules
• Application-layer Modules
• Client-side Modules
• Development Tools
• Management Tools

3. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
• ewd-session

4. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
– Provides the core master/worker infrastructure that
underpins EWD 3
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
• ewd-session

5. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
– Express Middleware for ewd-qoper8
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
• ewd-session

6. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
– Provides the interface between an ewd-qoper8
worker and Caché. Uses cache.node
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
• ewd-session

7. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• Provides the interface between an ewd-qoper8 worker and
GT.M. Uses NodeM
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
• ewd-session

8. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
– Global storage implemented using the Redis
database
• ewd-qoper8-redis
• ewd-document-store
• ewd-session

9. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
– Provides the interface between an ewd-qoper8 worker and ewd-
redis-globals
• ewd-document-store
• ewd-session

10. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
– Abstracts Caché, Redis (ewd-redis-globals) or GT.M as
persistent JavaScript Objects & Document Database
• ewd-session

11. Copyright © 2016 M/Gateway Developments Ltd
Core Modules
• ewd-qoper8
• ewd-qoper8-express
• ewd-qoper8-cache
• ewd-qoper8-gtm
• ewd-redis-globals
• ewd-qoper8-redis
• ewd-document-store
• ewd-session
– Provides a Session Management environment for EWD 3 applications.
Uses ewd-document-store

12. Copyright © 2016 M/Gateway Developments Ltd
Application-layer Modules
• QEWD (previously known as ewd-xpress)
• ewd-feder8
• ewd-qoper8-vistarpc

13. Copyright © 2016 M/Gateway Developments Ltd
Application-layer Modules
• QEWD
– Development and run-time environment for
Ajax, WebSocket and REST applications
– Complete one-stop system for your
applications
• ewd-feder8
• ewd-qoper8-vistarpc

14. Copyright © 2016 M/Gateway Developments Ltd
Application-layer Modules
• QEWD
• ewd-feder8
– Federation / integration platform for
integrating a set of HTTP or REST end-points
– essentially a lightweight ESB
– Extends QEWD
• ewd-qoper8-vistarpc

15. Copyright © 2016 M/Gateway Developments Ltd
Application-layer Modules
• QEWD
• ewd-feder8
• ewd-qoper8-vistarpc
– Provides REST access to RPCs within the
VA’s VistA EHR

16. Copyright © 2016 M/Gateway Developments Ltd
Client-side Modules
• ewd-client

17. Copyright © 2016 M/Gateway Developments Ltd
Client-side Modules
• ewd-client
– Designed to run within a browser
• Also runs within React Native mobile clients
– Communicates securely with QEWD via
WebSockets and/or Ajax
• Registers an application
• Provides the secure programmer APIs for
– Sending messages to QEWD back-end
– Receiving and handling responses from QEWD back-end
– Fetching HTML fragment files

18. Copyright © 2016 M/Gateway Developments Ltd
Development Tools
• ewd-xpress-react
• ewd-react-tools

19. Copyright © 2016 M/Gateway Developments Ltd
Development Tools
• ewd-xpress-react
– React.js client modules for QEWD
applications
• ewd-react-tools

20. Copyright © 2016 M/Gateway Developments Ltd
Development Tools
• ewd-xpress-react
• ewd-react-tools
– Tools for managing and documenting React.js
applications that run on QEWD

21. Copyright © 2016 M/Gateway Developments Ltd
Management Tools
• qewd-monitor

22. Copyright © 2016 M/Gateway Developments Ltd
Management Tools
• qewd-monitor
– Previously named ewd-xpress-monitor

23. Copyright © 2016 M/Gateway Developments Ltd
Management Tools
• qewd-monitor
– React.js-based QEWD application
– Monitors and manages QEWD
– Good example of how to write a React.js-
based QEWD application