Doesn't support the new OAuth authentication system

[NathanC]

Printful is phasing out the old API key (disabling entirely next March), and recommends all new projects use their new OAuth system. Fortunately, for simple personal store usage, there's no need to manage access/refresh tokens, you can just use a private token.

However, it requires Bearer instead of Basic in the Authorization header.

I'm just starting integrating with Printful. This project hasn't been touched in a year-- are you open to accepting PRs or giving me access to further develop it, or would it be better if I forked it and uploaded a separate package to NPM? Either way, let me know, and thanks for the work you've done on this!

[maxmezzomo]

Hi sorry wasn't paying attention to the repo, yea PR or can make contributor either way works if still interested. Thanks!