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)

Using CodePipeline for CD

So, we have our three services set up, and they would be running once we upload a Docker image. You learned in the last chapter, Chapter 14, Docker and the Cloud, how to do that through your command line; however this time, we want to get AWS to do it from our source directly. The process to be automatically deployed is called CD.

Let's quickly talk about how CodePipeline operates. CodePipeline works in stages. At every stage, it is doing something with our code and sending it to the next stage (through the pipe). The stages, however, are often composed of other services such as CodeBuild. CodeBuild is a tool that essentially uses EC2 units to compile code for us. Both CodeBuild and CodePipeline are incredibly flexible and customizable. It is worth investing some time into learning more about how to use them.

To get started, you need to have three...