Any way to require or include a shared .js file in my nodes html definition?

[René Köcher]

Hi,

so I've started working on a litte extension project for Node-RED.

So far I made good progress and came to a point where I have some common shared data in a separate file which my node code can require().

The package layout looks something like this (simplified):

 |- my-node.html

 |- my-node.js

 |- lib

 | \- shared-stuff.js

 \- package.json

Is there any way to require or include 'shared-stuff.js' from the a script-block inside 'my-node.html' ?

What I like to do is use part of the shared data in the 'oneditprepare' callback to populate a 'select' with possible choices.

(And in that case I really don't want to duplicate the data in both html & js!)

So far I tried tried something like this in my callback:

 var shared = require('lib/sharde-stuff');

event with different versions of specifying the path and with and without '.js' extension

all gave the same result: an error message from require that it can't load / locate the file.

In a desperate attempt I event tried using a separate <script type="text/javascript" src="..."> which in hindsight couldn't work..

Any help on this would be great..

Regards,

René

[Dave C-J]

Hi,

see the technique used in Ben's GeoFence node - https://github.com/hardillb/node-red-node-geofence

Basically an Http request to load it into the browser when required....

[René Köcher]

Thanks a lot, that is pretty neat - I wouldn't have thought about doing it that way!

Sir, you're awesome.

[Dave C-J]

The kudos go to Ben !

[Maxim Kolchin]

Hi Rene, Dave,

Could you explain, how to determine the path to a .js file, e.g `geofence/js/leaflet/leaflet-src.js`? It's located in `static` directory, but the path is different, i.e. geofence/js/leaflet/leaflet-src.js.

My environment: Node v0.13.0

Thank you in advance!
Maxim

[René Köcher]

Hi Maxim,

it's pretty easy (OK, Ben's version can be challenging to read..).

Take a look at my implementation which basically does the same (it returns a file from $node-install-path/lib/):

https://github.com/Shirk/node-red-contrib-homegear-mqtt/blob/master/homegear-mqtt.js#L223

Cheers,

René

[Maxim Kolchin]

Oh, okay, I missed it :) For some reason, I thought Node-RED somehow
serves such static content by itself.

Thank you very much René!

Maxim

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