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NPM & Root Permissions

Tuesday, November 1st, 2016

When dealing with NPM Permissions, often times it can be tempting to resort to installing modules as root (sudo), especially when under tight time constraints; where troubleshooting such issues will only serve to delay your progress.

Admittedly, I have been guilty of this more often than I care to admit. That said, being as I always have the Broken Windows Theory in the back of my mind, I knew this workaround needed to be resolved as soon as I had a moment to dig into it a bit more.

Previously, I had followed the instructions from docs.npmjs; however, they focus more on installations of global dependencies, rather than local dependencies. Fortunately, after a few quick searches, it became apparent that by simply changing permissions to the ~/.npm directory, this issue could easily be resolved as, all that is needed is to change the owner of the ~/.npm directory to the current user (as opposed to root).

To do so, simply run the following:

sudo chown -R $(whoami) ~/.npm

Likewise, you can use your username explicitly; e.g.:
sudo chown -R efeminella ~/.npm

And with that, the issue can safely be resolved, allowing you to run npm install as expected without having to fallback to using sudo.