TodoResource.swift

let todoResources = Resource(middleware: recovery, contentNegotiaton) { todo in
    todo.index { _ in
        let todos = try app.getAllTodos()
        return Response(content: ["todos": todos.content])
    }

    todo.create(mappingTo: Todo.self) { request, todo in
        let todo = try app.createTodo(todo)
        return Response(content: todo)
    }
    
    todo.show { _, id in
        let todo = try app.getTodo(id: id)
        return Response(content: todo)
    }
    
    todo.update { request, id, content in
        let todo = try app.updateTodo(
            id: id,
            title: try? content.get("title"),
            done: try? content.get("done")
        )
        return Response(content: todo)
    }

    todo.destroy { _, id in
        try app.removeTodo(id: id)
        return Response(status: .NoContent)
    }
}