[vtkusers] VTK-js: how to read a .json file

[Scott Wittenburg]

Hi Cristina,

In vtk.js we now use webpack2 (in master at least, you may have picked an
older version though), and the webpack2 documentation states that you no
longer need a loader for json:

https://webpack.js.org/guides/migrating/#json-loader-is-not-required-anymore

Is your project also using webpack2?  In that case you shouldn't need the
json loader.  Also, when you refer to "Build-in modules of Node.js", does
that refer specifically to this:

https://github.com/sindresorhus/builtin-modules

or do you mean something else?

Cheers,
Scott

On Fri, Jul 21, 2017 at 8:57 AM, Aron Helser <aron.helser at kitware.com>
wrote:

> Hi Cristina,
> ParaViewWeb uses this webpack 1.x loader:
> {
>     test: /\.json$/,
>     loader: 'json-loader',
>   },
> That should allow you to 'include' a json file in your javascript, and
> then you might need to use the built-in JSON.parse() to turn it into an
> object.
>
> Regards,
> Aron
>
> On Fri, Jul 21, 2017 at 4:43 AM, Cristina Oyarzun via vtkusers <
> vtkusers at vtk.org> wrote:
>
>> Dear all,
>>
>> I visualized several actors using VTK-js. Now I want to read a .json file
>> and according to the information that it is included there assign different
>> colors to the actors.
>>
>> Unfortunately as soon as I try to use the Build-in modules of Node.js I
>> start getting errors. I didnt manage to find out how do I have to adapt the
>> "webpack.config.js" (or the "package.json"?) so that it works.
>>
>> I found somewhere in a forum that it should work by adding " target:
>> 'node' " to the webpack.config.js but it didnt. Any help would be great!
>>
>> Thank you!
>> Cristina
>>
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