Executing bash script with spawn node.js method returns errors

Question

I cannot find a way to execute my node command with spawn method. My script is :

node node_modules/.bin/webpack-dev-server --port 8081 --content-base app

I tried to execute it like :

spawn('node', ['node_modules/.bin/webpack-dev-server --port 8081 --content-base app']);

this returns an error

Cannot find module '/Users/myuser/code/gui/node_modules/.bin/webpack-dev-server --port 8081 --content-base app'

I also tried this :

spawn('node', ['node_modules/.bin/webpack-dev-server',' --port 8081 ', '--content-base app']);

it runs my webpack server but it doesn't take the port and content-base params into account. For this case the error is :

ERROR in Entry module not found: Error: Cannot resolve module ' --port 8081 '

Any ideas? Thanks!

Oh, and I forgot to add that the script runs well with the exec method.

mscdex · Accepted Answer · 2016-03-14 09:00:58Z

1

You have extra spaces in your second argument in the second example. Try this:

const args = [
  'node_modules/.bin/webpack-dev-server',
  '--port',
  '8081',
  '--content-base',
  'app'
];
spawn('node', args);

answered Mar 14, 2016 at 9:00

mscdex

107k15 gold badges201 silver badges159 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

this would work only if port is number not string, '--port', 8081, '--content-base',