Starling test exercise by Roman Shevtsov

Please see original requirements in pdf

How to run

• Xcode 11.3.1
• Please insert your apiAccessToken in Configuration.swift

Project highlights

UI

• barebones logger-style
• autolayout with safe areas
• dark mode support

Architecture

• Separation of concerns (BankManager and ViewModel)
• Dependency injection
• MVVM with passing ViewData via delegate pattern
• API wrapper around URLSession utilising generics
• API consumes Endpoint encapsulating strongly-typed request and response

What could be improved given more time

• Chaining of API calls done via Operations/ProcedureKit/RxSwift. Considering that I needed to chain 2 API calls at most, I've chosen the simplest solution possible
• Round up extracted out into a separate object and tested more thoroughly
• More tests. Everything is made testable, but due to repetetive nature of tests and time constraints, I did not cover API helpers and all possible scenarios in business logic
• Better UI obviously