The got http library doesn't support authentication in URLs such as user:[email protected], so there's currently no way to use gateways with basic auth in front of them.

Looks like this was raised as an issue on the old repository austinfrey#5 - and PR #6 does add basic auth, but was never merged, and seems to be against an old version.

Would it be better to –

1. Add a second constructor argument allowing you to add got options so you can call new OpenFaas(gateway, { auth: "user:pass" }) and any requests will then merge that in before sending
2. Base it on the design in PR Refactor into ES6 class, add more tests and update docs #6 which allowed you to pass either a URL, a URL and options, or just options with a gateway parameter (it's described well here). Could extract that part of the PR into a new one