FBP Graph library with React: error on require()

[Santosh Kumar]

I am trying to create a web-based FBP frontend based on noflo.  To start with I want to integrate FBP Graph Library with a React app. I am using web-pack for the app. I am basically a C++ programmer who has recently taken to Javascript and React. 

In my react component on import using following code:

var fbpGraph = require('fbp-graph');

I get the error:

ERROR in ./node_modules/fbp-graph/lib/Graph.js Module not found: Error: Can't resolve 'fs'

I am able to solve this issue using:

node: {

fs: 'empty'

},

in webpack.config.js.

My worry is:

Why does FBP Graph Library needs a file system and what will happen if I run it  in the browser with this setting? 

Any help will be very useful to me. Thank you all.

Santosh

[Jon Nordby]

Hi Santosh,

There is *optional* support for saving a graph to disk in fbp-graph. But because the way webpack scans for dependencies it can't really know that this codepath will never be executed in a browser context.

[Santosh Kumar]

Hi Jon,

Thanks a lot. It was very helpful.

Regards,

Santosh

On Wed, Oct 18, 2017 at 11:00 PM, Jon Nordby <nordb...@gmail.com> wrote:

Hi Santosh,

There is *optional* support for saving a graph to disk in fbp-graph. But because the way webpack scans for dependencies it can't really know that this codepath will never be executed in a browser context.

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