alickbass

import RxSwift

protocol ApiResultType {
    associatedtype ResultType
    var result: ApiResult<ResultType> { get }
}

enum ApiResult<T>: ApiResultType {
    typealias ResultType = T
    case success(T)

alickbass

import RxSwift
import ViewComponents

extension ObservableType where E: ComponentConvertible {
    public func diff() -> Observable<Component<E.ComponentViewType>> {
        return map({ $0.toComponent })
            .scan((Component(), Component()), accumulator: { ($0.1, $1) })
            .map({ $0.0.diffChanges(from: $0.1) })
    }
}

alickbass

import SwiftyJSON

extension Person {
    enum PropertyKey: String {
        case firstName, lastName, age, isMarried, height, hobbies
    }

    init(json: JSON) {
        firstName = json[PropertyKey.firstName.rawValue].stringValue
        lastName = json[PropertyKey.lastName.rawValue].stringValue

alickbass

Type safe JSON in Swift with SwiftyJSONModel

Table of contents

1. JSON everywhere
2. How would Apple do it?
3. Problems with Apple's approach
4. Using enum to store all the strings
5. Using SwiftyJSON to remove boilerplate
6. SwiftyJSONModel for the rescue
7. Type-safe and autocompleted keys for the JSON