Book Image

Hands-On RESTful Web Services with Go - Second Edition

By : Naren Yellavula
Book Image

Hands-On RESTful Web Services with Go - Second Edition

By: Naren Yellavula

Overview of this book

Building RESTful web services can be tough as there are countless standards and ways to develop API. In modern architectures such as microservices, RESTful APIs are common in communication, making idiomatic and scalable API development crucial. This book covers basic through to advanced API development concepts and supporting tools. You’ll start with an introduction to REST API development before moving on to building the essential blocks for working with Go. You’ll explore routers, middleware, and available open source web development solutions in Go to create robust APIs, and understand the application and database layers to build RESTful web services. You’ll learn various data formats like protocol buffers and JSON, and understand how to serve them over HTTP and gRPC. After covering advanced topics such as asynchronous API design and GraphQL for building scalable web services, you’ll discover how microservices can benefit from REST. You’ll also explore packaging artifacts in the form of containers and understand how to set up an ideal deployment ecosystem for web services. Finally, you’ll cover the provisioning of infrastructure using infrastructure as code (IaC) and secure your REST API. By the end of the book, you’ll have intermediate knowledge of web service development and be able to apply the skills you’ve learned in a practical way.
Table of Contents (16 chapters)

IaC with Terraform

Terraform is a software tool for provisioning infrastructure on cloud platforms, including AWS. Using Terraform, we can create, configure, or delete resources. Terraform allows automatic resource provisioning compared to the AWS Console. When compared to low-level REST APIs and SDKs, Terraform has a clean, high-level API. Terraform stores the current state of provisioned infrastructure in a state file.

Let's say the infrastructure provisioned on an account should be replicated on another account as part of disaster recovery. If we do not have IaC, all resources have to be reconfigured manually. However, if the whole infrastructure is modeled in the form of Terraform scripts, then it is easy to replay the infrastructure on any number of accounts. This approach is very readable and maintainable compared to hand-wiring infrastructure on the AWS console.

Terraform...