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SpaceX rocket listing app using RxSwift and CLEAN Architecture with MVVM

Demo

Features

  • Reactive Bindings
  • URL / JSON Parameter Encoding
  • Filter Years In Rocket Listing
  • Network Requests using URLSession
  • HTTP Response Validation
  • Image Caching
  • Unit Tests

Cool Features

  • CLEAN Architecture using MVVM-C with DIContainers

Requirements

  • iOS 15.0 (Change this to a lower version in project settings if you are not on latest xcode IDE)
  • Xcode 13+
  • Swift 5+

Clean Architecture using MVVM-C

in Clean Architecture, we have different layers in the application. The main rule is not to have dependencies from inner layers to outers layers. The arrows pointing from outside to inside is the Dependency rule. There can only be dependencies from outer layer inward
After grouping all layers we have: Presentation, Domain and Data layers.

  • Domain Layer

    • Domain Layer (Business logic) is the inner-most part of the onion (without dependencies to other layers, it is totally isolated). It contains Entities(Business Models)

  • Presentation Layer

    • Presentation Layer contains UI (UIViewControllers or SwiftUI Views). Views are coordinated by ViewModels (Presenters). Presentation Layer depends only on the Domain Layer

  • Data Layer

    • Data Layer contains Repository Implementations and one or many Data Sources. Repositories are responsible for coordinating data from different Data Sources. Data Source can be Remote or Local (for example persistent database). Data Layer depends only on the Domain Layer. In this layer, we can also add mapping of Network JSON Data (e.g. Decodable conformance) to Domain Models

  • Dependency Direction

    • Presentation Layer -> Domain Layer <- Data Repositories Layer
    • Presentation Layer (MVVM) = ViewModels(Presenters) + Views(UI)
    • Domain Layer = Entities
    • Data Repositories Layer = Repositories Implementations + API(Network) + Persistence DB

  • Coordinators

    • Navigation of the app is handled by coordinators

  • DIContainers

    • Dependencies are injected using dependency injection.

Dependencies

Installation

  • Clone the repo and open the .xcworkspace file

GitHub

View Github