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)

Setting up the project

In this section, you will be instructed on how to set this service up before we start coding the main elements. Setting up this service is a good bit easier than the previous service, the UMS. We are not sending emails, nor are we issuing JSON Web Tokens (JWTs). Remember that JWTs are issued by our UMS, so all we have to do is validate that they are actually issued correctly and have not been tampered with. We will need a database in which to store the product and category information, which—just as before—is going to be MySQL.

What we will do is basically the following:

  • Manage models that represent the products and categories.
  • Verify that a user is authorized to modify products or categories.

This section covers the following:

  • Setting up the template
  • Setting up JWT verification
  • Setting up the database

Let's start with the template...