Remove PromiseKit

[khoi]

I briefly look through the list of dependencies and see both PromiseKit and RxSwift. Why does the app need PromiseKit? Isn't Rx Single basically the same thing?

[antranapp]

I don't know much about RxSwift or Single, but the beauty of PromiseKit is that you can chain the async calls. I assume we can also do that with Single and map or flatMap. And That's why we have this ticket 😉

To be honest, I'm a very beginner when talking about RxSwift, only familiar with PromiseKit, if you could help to remove PromiseKit dependency by using RxSwift, it would be a huge help.

[antranapp]

Or we can skip RxSwift altogether and go straight to Combine using Future type as a replacement for PromiseKit 😆

[antranapp]

Haha, just found out that I've planned to remove both RxSwift & PromiseKit in another ticket already #104 😬

[khoi]

great