Construindo uma aplicação Full Stack com Swift

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FullStackSwiftExample/
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├── Models/
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│   ├── Package.swift
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│   └── Sources/
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│       └── Models/
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│           └── Models.swift
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├── Backend/
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│   ├── Package.swift
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│   └── Sources/
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│       ├── App/
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│       │   ├── configure.swift
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│       │   └── routes.swift
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│       └── Run/
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│           └── main.swift
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└── iOSApp/
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    └── Kittens/
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        ├── KittensApp.swift
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        ├── Utilities.swift
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        ├── ViewModels/
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        │   ├── AddKittenViewModel.swift
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        │   ├── KittenListViewModel.swift
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        │   └── ViewUpdateDeleteKittenViewModel.swift
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        └── Views/
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            ├── AddKitten.swift
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            ├── KittenList.swift
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            └── ViewUpdateDeleteKitten.swift

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/**
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* Represents a kitten.
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* This type conforms to `Codable` to allow us to serialize it to and deserialize it from extended JSON and BSON.
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* This type conforms to `Identifiable` so that SwiftUI is able to uniquely identify instances of this type when they
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* are used in the iOS interface.
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*/
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public struct Kitten: Identifiable, Codable {
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   /// Unique identifier.
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   public let id: BSONObjectID
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   /// Name.
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   public let name: String
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   /// Fur color.
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   public let color: String
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   /// Favorite food.
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   public let favoriteFood: CatFood
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   /// Last updated time.
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   public let lastUpdateTime: Date
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   private enum CodingKeys: String, CodingKey {
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       // We store the identifier under the name `id` on the struct to satisfy the requirements of the `Identifiable`
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       // protocol, which this type conforms to in order to allow usage with certain SwiftUI features. However,
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       // MongoDB uses the name `_id` for unique identifiers, so we need to use `_id` in the extended JSON
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       // representation of this type.
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       case id = "_id", name, color, favoriteFood, lastUpdateTime
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   }
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}