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)

Working with PostgreSQL, JSON, and Go

In this chapter, we are going to take a bird's-eye view of SQL. In the previous chapters, we discussed SQLite3, which is a lightweight database for quick prototyping. But when it comes to developing an enterprise-grade application, MySQL or PostgreSQL is the preferred choice. Both are well-proven, heavy-duty databases that are open source. In this chapter, we'll pick PostgreSQL as our main subject.

First, we'll discuss the internals of PostgreSQL, and then move on to use the database with Go. The goal of this chapter is to make the reader comfortable working with PostgreSQL and Go. We'll also build a URL-shortening service that requires a database layer.

In this chapter, we will cover the following topics:

  • Discussing PostgreSQL installation options
  • Introducing pq, a pure PostgreSQL database driver for Go
  • Implementing a...