Book Image

Event-Driven Architecture in Golang

By : Michael Stack
5 (1)
Book Image

Event-Driven Architecture in Golang

5 (1)
By: Michael Stack

Overview of this book

Event-driven architecture in Golang is an approach used to develop applications that shares state changes asynchronously, internally, and externally using messages. EDA applications are better suited at handling situations that need to scale up quickly and the chances of individual component failures are less likely to bring your system crashing down. This is why EDA is a great thing to learn and this book is designed to get you started with the help of step-by-step explanations of essential concepts, practical examples, and more. You’ll begin building event-driven microservices, including patterns to handle data consistency and resiliency. Not only will you learn the patterns behind event-driven microservices but also how to communicate using asynchronous messaging with event streams. You’ll then build an application made of several microservices that communicates using both choreographed and orchestrated messaging. By the end of this book, you’ll be able to build and deploy your own event-driven microservices using asynchronous communication.
Table of Contents (18 chapters)
1
Part 1: Event-Driven Fundamentals
5
Part 2: Components of Event-Driven Architecture
12
Part 3: Production Ready

Installing the necessary DevOps tools

The plan is to deploy the application in its microservices form to AWS. For most developers, learning about every service offering in AWS is not something they focus on – taking off their software developer hat and putting on their system administrator hat, so to speak. To make things easier, we will be relying on an application called Terraform, which is an IaC tool. We will be able to define what our application needs with code and then let it do the heavy lifting of pulling all the right levers and pushing all the right buttons for us.

We will also need a few more tools to help us:

  • The AWS CLI, aws, is how we will authorize ourselves with AWS
  • Helm is a tool that will let us use packages called Charts to deploy some complex machinery into Kubernetes
  • We will be using a PostgreSQL database in the cloud and will want the PostgreSQL client psql installed to help set it up
  • To view our Kubernetes cluster, we will use an...