Hands-On Server-Side Web Development with Swift

Declaring application classes

App is the top class for the App module, and it handles the main life cycle functions for the application:

// File: /Application/Application.swiftimport Foundationimport Kituraimport LoggerAPIimport Configurationimport CloudEnvironmentimport KituraContractsimport Healthpublic let projectPath = ConfigurationManager.BasePath.project.pathpublic let health = Health()public class App {    let router = Router()    let cloudEnv = CloudEnv()    public init() throws { // [1]        // Run the metrics initializer        initializeMetrics(router: router)    }    func postInit() throws {        // Endpoints        initializeHealthRoutes(app: self)    }    public func run() throws {        try postInit() // [2] Kitura.addHTTPServer(onPort: cloudEnv.port, with: router) // [3] ...