How to use `nconf` module in config.js

[ghost]

Tried to add the following code

let externalConfig = {};

console.log('*** process.env.NODE_ENV', process.env.NODE_ENV);

if (process.env.NODE_ENV !== 'production') {
  console.log('--- client side code');
  externalConfig = require('./configDev.json');
}
else {
  console.log('--- production');
  const nconf = require('nconf');
  const path = require('path');

  nconf.env({separator: '__'}).file({file: path.join(__dirname, 'config.json')});
  externalConfig = nconf.get();
}
....
module.exports = Object.assign(
   {...}
  environment,
  externalConfig
}

In the dev mode I have the following

ERROR in ./~/nconf/lib/nconf.js
Module not found: Error: Cannot resolve module 'fs' in /Users/dsmiljanic/Projects/xxx/dashboard.web/node_modules/nconf/lib
 @ ./~/nconf/lib/nconf.js 8:9-22
ERROR in ./~/nconf/lib/nconf/common.js
Module not found: Error: Cannot resolve module 'fs' in /Users/dsmiljanic/Projects/xxx/dashboard.web/node_modules/nconf/lib/nconf
 @ ./~/nconf/lib/nconf/common.js 8:9-22
ERROR in ./~/nconf/lib/nconf/stores/file.js
Module not found: Error: Cannot resolve module 'fs' in /Users/dsmiljanic/Projects/xxx/dashboard.web/node_modules/nconf/lib/nconf/stores
 @ ./~/nconf/lib/nconf/stores/file.js 9:9-22
ERROR in ./~/nconf/~/yargs/lib/completion.js
Module not found: Error: Cannot resolve module 'fs' in /Users/dsmiljanic/Projects/xxx/dashboard.web/node_modules/nconf/node_modules/yargs/lib
 @ ./~/nconf/~/yargs/lib/completion.js 1:9-22

If the production the code

  const nconf = require('nconf');
  const path = require('path');

  nconf.env({separator: '__'}).file({file: path.join(__dirname, 'config.json')});
  externalConfig = nconf.get();

is commented out, everything is fine (in dev mode)

Please, could you tell me how can I solve this issue properly. Thanks

[jdosullivan]

It's an isomorphic app. fs isn't available on the browser so you need to instruct webpack to only look for fs when constructing the server bundle.

Try adding this to your webpack config:

node: { fs: "empty" }

[ghost]

Thank you David. The complete solution was

// dashboard.web/webpack/dev.config.js
...
module.exports = {
...
node: { fs: "empty", child_process: "empty" },
...
};