Book Image

Hands-On Swift 5 Microservices Development

Book Image

Hands-On Swift 5 Microservices Development

Overview of this book

The capabilities of the Swift programming language are extended to server-side development using popular frameworks such as Vapor. This enables Swift programmers to implement the microservices approach to design scalable and easy-to-maintain architecture for iOS, macOS, iPadOS, and watchOS applications. This book is a complete guide to building microservices for iOS applications. You’ll start by examining Swift and Vapor as backend technologies and compare them to their alternatives. The book then covers the concept of microservices to help you get started with developing your first microservice. Throughout this book, you’ll work on a case study of writing an e-commerce backend as a microservice application. You’ll understand each microservice as it is broken down into details and written out as code throughout the book. You’ll also become familiar with various aspects of server-side development such as scalability, database options, and information flow for microservices that are unwrapped in the process. As you advance, you’ll get to grips with microservices testing and see how it is different from testing a monolith application. Along the way, you’ll explore tools such as Docker, Postman, and Amazon Web Services. By the end of the book, you’ll be able to build a ready-to-deploy application that can be used as a base for future applications.
Table of Contents (19 chapters)

Creating our models

In this service, we need to store the incoming orders in the database. The models we are creating in this section are representing that information in Swift through Fluent. Additionally, we also need to create input and output models that help us transfer the information from and to the user.

We have the following models to consider:

  • Order: This represents the order from a consumer.
  • OrderItem: This is an item within an order.
  • OrderPayment: This is a payment posted for an order.
When it comes to payments, make sure you always provide enough flexibility for different payment types and amounts. People are usually not as well-versed as we would like them to be for our services.

Let's go through the following sections:

  • Configuring database models: Creating the models that correspond with the database.
  • Writing input models: All our inputs put into structs...