Book Image

Hands-On Full-Stack Development with Swift

By : Ankur Patel
Book Image

Hands-On Full-Stack Development with Swift

By: Ankur Patel

Overview of this book

Making Swift an open-source language enabled it to share code between a native app and a server. Building a scalable and secure server backend opens up new possibilities, such as building an entire application written in one language—Swift. This book gives you a detailed walk-through of tasks such as developing a native shopping list app with Swift and creating a full-stack backend using Vapor (which serves as an API server for the mobile app). You'll also discover how to build a web server to support dynamic web pages in browsers, thereby creating a rich application experience. You’ll begin by planning and then building a native iOS app using Swift. Then, you'll get to grips with building web pages and creating web views of your native app using Vapor. To put things into perspective, you'll learn how to build an entire full-stack web application and an API server for your native mobile app, followed by learning how to deploy the app to the cloud, and add registration and authentication to it. Once you get acquainted with creating applications, you'll build a tvOS version of the shopping list app and explore how easy is it to create an app for a different platform with maximum code shareability. Towards the end, you’ll also learn how to create an entire app for different platforms in Swift, thus enhancing your productivity.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Deleting an item


Deleting an Item is very similar to deleting a Shopping List where we need to make a DELETE request to the /items endpoint instead, with the ID of the item passed in the URL. Just like addition, we need to update the remove method inside the ShoppingList class so that it can make a network request to delete and invoke an onCompletion handler that we can use to update the tableView. For this, we need to make two changes. They are as follows:

  1. Inside of the ShoppingList.swift file of the iOS project, update the method signature of the remove method to take an extra parameter called the onCompletion closure function. Inside this function, make the network request to delete the item from the server. On success, remove the item from the Shopping List's items array and call the onCompletion handler. The updated remove method looks like the following:
func remove(at index: Int, onCompletion: @escaping () -> Void) {
  let itemId = self.items[index].id!
  request(url: "/items/\(itemId...