I can activate the Conda Environment with any problems from the bash shell. I can use this two options on bash:

source activate env_name
. activate env_name

But I am using the method exec of Node to run the activation of the environment. Node uses sh shell in order to run commands. I tried the commands above, but they did not work. I got this error

/bin/sh: 1: /env_name/bin/source: not found

So I had to use this command to run the environment

const child_process = require('child_process')
child_process.exec('bash -c "source activate env_name"')

Is there a better way to do this to make it work on Ubuntu?

I run this on Windows and it is enough to make it work

child_process.exec('activate env_name')