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)

Deploying a Go service using Nginx

As we have already discussed, Nginx can be a reverse proxy for a Go application. Let's say that we have a server that provides a REST API to access book data. A client can send a request and get it back in JSON. The server also stores all the logs in an external file. Let's take a look at the steps to create this application:

  1. Let's name our project bookServer:
> mkdir -p $GOPATH/src/github.com/git-user/chapter12/bookServer
touch
$GOPATH/src/github.com/git-user/chapter12/bookServer/main.go

This file is a basic Go server to illustrate the functioning of a reverse proxy server. We first run our program on port 8000. Then, we add a configuration that maps 8000 (Go's running port) to 80 (the Nginx HTTP port).

  1. Now, let's write the code. We will use a few packages for our server. We can use Go's built-in net/http package...