vapor 4

Sources/App/configure.swift

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+import Leaf
+import Vapor
+
+// Called before your application initializes.
+public func configure(_ app: Application) throws {
+    //leaf
+    app.views.use(.leaf)
+    
+    //Register middleware
+    app.middleware.use(FileMiddleware(publicDirectory: app.directory.publicDirectory))
+    app.middleware.use(ErrorMiddleware.default(environment: app.environment))
+    
+    //port
+    app.http.server.configuration.port = 8080
+    
+    //routes
+    try routes(app)
+}

Sources/App/routes.swift

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+import Vapor
+
+// Register your application's routes here.
+public func routes(_ app: Application) throws {
+    app.get("") { req async throws -> View in
+        return try await req.view.render("home")
+    }
+    app.get("index.html") { req async throws -> View in
+        return try await req.view.render("home")
+    }
+    app.get("privacy") { req async throws -> View in
+        return try await req.view.render("privacy")
+    }
+    app.get("welcome") { req async throws -> View in
+        return try await req.view.render("welcome")
+    }
+    app.get("**") { req async throws -> View in
+        return try await req.view.render("404")
+    }
+}

Sources/Run/main.swift

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+import App
+import Vapor
+
+var env = try Environment.detect()
+try LoggingSystem.bootstrap(from: &env)
+let app = Application(env)
+defer { app.shutdown() }
+try configure(app)
+try app.run()