Book Image

Hands-On Server-Side Web Development with Swift

By : Angus Yeung
Book Image

Hands-On Server-Side Web Development with Swift

By: Angus Yeung

Overview of this book

This book is about building professional web applications and web services using Swift 4.0 and leveraging two popular Swift web frameworks: Vapor 3.0 and Kitura 2.5. In the first part of this book, we’ll focus on the creation of basic web applications from Vapor and Kitura boilerplate projects. As the web apps start out simple, more useful techniques, such as unit test development, debugging, logging, and the build and release process, will be introduced to readers. In the second part, we’ll learn different aspects of web application development with server-side Swift, including setting up routes and controllers to process custom client requests, working with template engines such as Leaf and Stencil to create dynamic web content, beautifying the content with Bootstrap, managing user access with authentication framework, and leveraging the Object Relational Mapping (ORM) abstraction layer (Vapor’s Fluent and Kitura’s Kuery) to perform database operations. Finally, in the third part, we’ll develop web services in Swift and build our API Gateway, microservices and database backend in a three-tier architecture design. Readers will learn how to design RESTful APIs, work with asynchronous processes, and leverage container technology such as Docker in deploying microservices to cloud hosting services such as Vapor Cloud and IBM Cloud.

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Table of Contents (18 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Introducing Server-Side Swift
Introducing Server-Side Swift
Introducing Swift
Surveying Swift server-side frameworks
Choosing the right framework
Summary
2
Getting Started with Vapor and Kitura
Getting Started with Vapor and Kitura
Installing Vapor and Kitura on Mac
Installing Vapor and Kitura on Ubuntu
Exploring Vapor Toolbox and the Kitura CLI
Exploring the Kitura CLI
Summary
3
Building Your First Web App
Building Your First Web App
Creating an app using Vapor CLI
Reviewing source code in Vapor boilerplate
Adding more routes in Vapor
Creating an app using Kitura CLI
Reviewing source code in Kitura boilerplate
Adding more routes in Kitura
Summary
4
Debugging and Testing
Debugging and Testing
Writing tests for server-side Swift projects
Debugging in a server-side Swift project
Summary
5
Setting Up Routes and Controllers
Setting Up Routes and Controllers
Adding custom routes in a Vapor project
Adding custom routes in a Kitura project
Summary
6
Working with Template Engines
Working with Template Engines
Using the Leaf templating engine in Vapor
Templating with Stencil in a Kitura project
Summary
7
Bootstrapping Your Design
Bootstrapping Your Design
Getting started with the Bootstrap framework
Using Bootstrap for a Vapor application
Using Bootstrap for Kitura
Summary
8
Employing Storage Framework
Employing Storage Framework
Installing databases
Working with the Fluent Framework in Vapor
Working with the Database Abstraction Layer in Kitura
Summary
9
Adding Authentication
Adding Authentication
Introducing the authentication API for Vapor
Introducing authentication for Kitura
Summary
10
Understanding Technologies for Web Services
Understanding Technologies for Web Services
Serving clients with web services
Encapsulating business logic into microservices
Cloud deployment
Summary
11
Designing for API Gateway
Designing for API Gateway
Serving clients with the RESTful API
Designing the RESTful API
Implementing the endpoints and responses
Implementing API endpoints for Kitura
Summary
12
Deploying to the Cloud
Deploying to the Cloud
Deploying Vapor web service to Vapor Cloud
Deploying the Kitura web service to IBM Cloud
Summary
13
Developing an iPhone Client
Developing an iPhone Client
Developing an iOS App for a server-side Swift application
Adding content to TableViewController
Adding domain exceptions for App Transport Security
Adding a new entry to journal
Using the Delegate Pattern
Hooking up new functionalities for UI items
Finishing the CRUD operations
Summary
14
Developing Microservices
Developing Microservices
Leveraging Microservices in Backend Applications
Deploying a Containerized Application to a Cluster
Summary
15
Vapor Boilerplate Project
Vapor Boilerplate Project
Reviewing Vapor-generated files
Configuring Swift Package Manager
Starting with an entry point
Instantiating an application object
Configuring before instantiating application
Adding initialization code after application instantiation
Registering the application's routes
Implementing endpoint logic in controllers
Using a data model
16
Kitura Boilerplate Project
Kitura Boilerplate Project
Reviewing Kitura-generated files
Understanding generated sourcecode in Kitura
17
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Templating with Stencil in a Kitura project

Unlike Vapor, which adopts Leaf as its own templating engine, Kitura allows support for multiple templating engines through its TemplateEngine protocol. Kitura's templating engine API provides a unified interface for multiple templating engines. Currently three templating engines are included in Kitura:

  • Stencil
  • Mustache
  • Markdown

You'll learn about Stencil extensively in this chapter because Stencil has the best coverage and support among the three templating engines in the Kitura's developer community. Stencil works similarly to Vapor's Leaf in generating dynamic frontend web pages. The templating engine scans for variables and tags in a template file and replaces them with actual values or places control flows that render filtered content. Given Stencil's maturity, it offers a richer set of features such as...

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