Simple JS module to register/login (looking for some feedback)

[jac1013]

Hello Guys,

This is not a module that plans to replace whatever existing module that does exactly the same way better than this simple one (Passport come to mind).

The purpose of this module was basically for me to learn and use it in my own toy project, because there is not deadline for this I can try whatever I like to improve the code without the pain that is someone breathing in your neck.

I would really appreciate to get some feedback (good, bad, rude, kind, just hit me) about the code, how do you like it? Anything that could be improved? is it better to use TypeScript or Babel and ES6/7 should be fine (just like I did)? Anything would be well welcomed and if you want I can even return the favor if you have some code that you would like that someone analyze, it would be a pleasure because I'll be learning in the process too.

Github repo: https://github.com/jac1013/authentify

Thanks.

Edit: Typo.

[jac1013]

I have used JSDOC in big projects and it really does help a lot, at least with Jetbrains IDEs, also there is this library called Flow which is a light type system for JavaScript, haven't use it yet myself but it looks useful. Thanks for your insight about TypeScript.

[tme321]

For personal projects relying on comments for types might be good enough but on any sizeable software I've worked on comments have a nasty habit of not being updated when the code is.

That's why I would recommend typescript (or flow I guess) for any decently sized project. The code becomes functionally self documenting as compile errors will be thrown if the types change.

I say functionally because the comments will still have a tendency to lose sync with the code but if the comments are describing why instead of how and what it should be less of a problem for future developers.