>
> Maybe you could apply Meteor ideas: no callback hell, but fibers
> https://www.meteor.com/
>
 
BTW I have looked at and considered fibres as an alternative to child 
processes.  At the time there wasn't any equivalent support for Windows and 
I wanted EWD.js to work across all platforms.  If things have moved on in 
that regard I'll consider moving in that direction, since they appeared to 
offer improved performance.

Regarding Meteor, I was actually working on the design and architecture of 
EWD.js long before Meteor came on the scene.  Yes it's got some 
similarities in concept - great minds I guess!  

Note that a key feature of EWD.js is that it's designed to interoperate 
seamlessly with the database technology used by VistA, exposing it as a 
very powerful and exceptionally performant JSON database, and making it 
straightforward to integrate new JavaScript code with the very old legacy 
code in VistA to the extent that you can treat that old stuff pretty much 
as a black box of APIs.  On that side of things, I'm hoping that we can 
encourage the guys who understand that old code to create the packages of 
APIs through which VistA's huge range of functionality (in EHR terms) can 
be accessed and modernised (and extended) by JavaScript / Node.js 
developers.  There's already a fair amount of stuff that's accessible, but 
we need to encourage much more to be made available and accessible
  
Rob

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