Book Image

Go Web Development Cookbook

By : Arpit Aggarwal
Book Image

Go Web Development Cookbook

By: Arpit Aggarwal

Overview of this book

Go is an open source programming language that is designed to scale and support concurrency at the language level. This gives you the liberty to write large concurrent web applications with ease. From creating web application to deploying them on Amazon Cloud Services, this book will be your one-stop guide to learn web development in Go. The Go Web Development Cookbook teaches you how to create REST services, write microservices, and deploy Go Docker containers. Whether you are new to programming or a professional developer, this book will help get you up to speed with web development in Go. We will focus on writing modular code in Go; in-depth informative examples build the base, one step at a time. You will learn how to create a server, work with static files, SQL, NoSQL databases, and Beego. You will also learn how to create and secure REST services, and create and deploy Go web application and Go Docker containers on Amazon Cloud Services. By the end of the book, you will be able to apply the skills you've gained in Go to create and explore web applications in any domain.

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Table of Contents (13 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Sections
Get in touch
Free Chapter
1
Creating Your First Server in Go
Creating Your First Server in Go
Introduction
Creating a simple HTTP server
Implementing basic authentication on a simple HTTP server
Optimizing HTTP server responses with GZIP compression
Creating a simple TCP server
Reading data from a TCP connection
Writing data to a TCP connection
Implementing HTTP request routing
Implementing HTTP request routing using Gorilla Mux
Logging HTTP requests
2
Working with Templates, Static Files, and HTML Forms
Working with Templates, Static Files, and HTML Forms
Introduction
Creating your first template
Serving static files over HTTP
Serving static files over HTTP using Gorilla Mux
Creating your first HTML form
Reading your first HTML form
Validating your first HTML form
Uploading your first file
3
Working with Sessions, Error Handling, and Caching in Go
Working with Sessions, Error Handling, and Caching in Go
Introduction
Creating your first HTTP session
Managing your HTTP session using Redis
Creating your first HTTP cookie
Implementing caching in Go
Implementing HTTP error handling in Go
Implementing login and logout in web application
4
Writing and Consuming RESTful Web Services in Go
Writing and Consuming RESTful Web Services in Go
Introduction
Creating your first HTTP GET method
Creating your first HTTP POST method
Creating your first HTTP PUT method
Creating your first HTTP DELETE method
Versioning your REST API
Creating your first REST client
Creating your first AngularJS Client
Creating your first ReactJS client
Creating your first VueJS client
5
Working with SQL and NoSQL Databases
Working with SQL and NoSQL Databases
Introduction
Integrating MySQL and Go
Creating your first record in MySQL
Reading records from MySQL
Updating your first record in MySQL
Deleting your first record from MySQL
Integrating MongoDB and Go
Creating your first document in MongoDB
Reading documents from MongoDB
Updating your first document in MongoDB
Deleting your first document from MongoDB
6
Writing Microservices in Go Using Micro – a Microservice Toolkit
Writing Microservices in Go Using Micro – a Microservice Toolkit
Introduction
Creating your first protocol buffer
Spinning up a microservice discovery client
Creating your first microservice
Creating your second microservice
Creating your Micro API
Interacting with microservices using a command-line interface and web UI
7
Working with WebSocket in Go
Working with WebSocket in Go
Introduction
Creating your first WebSocket server
Creating your first WebSocket client
Debugging your first local WebSocket server
Debugging your first remote WebSocket server
Unit testing your first WebSocket server
8
Working with the Go Web Application Framework – Beego
Working with the Go Web Application Framework – Beego
Introduction
Creating your first project using Beego
Creating your first controller and router
Creating your first view
Creating your first session variable
Creating your first filter
Handling HTTP errors in Beego
Implementing caching in Beego
Monitoring the Beego application
Deploying the Beego application on a local machine
Deploying the Beego application with Nginx
9
Working with Go and Docker
Working with Go and Docker
Introduction
Building your first Go Docker image
Running your first Go Docker container
Pushing your Docker image to the Docker Registry
Creating your first user-defined bridge network
Running a MySQL Docker image on a user-defined bridge network
Building a Go web application Docker image
Running a web application Docker container linked with a MySQL Docker container on a user-defined bridge network
10
Securing a Go Web Application
Securing a Go Web Application
Introduction
Creating a private key and SSL certificate using OpenSSL
Moving an HTTP server to HTTPS
Defining REST APIs and routes
Creating a JSON web token
Securing a RESTful service using a JSON web token
Preventing cross-site request forgery in Go web applications
11
Deploying a Go Web App and Docker Containers to AWS
Deploying a Go Web App and Docker Containers to AWS
Introduction
Creating your first EC2 instance to run a Go web application
Interacting with your first EC2 instance
Creating, copying, and running a Go web application on your first EC2 instance
Setting up an EC2 instance to run a Docker container
Pulling a Docker image on an AWS EC2 instance from Docker Hub
Running your Go Docker container on an EC2 instance
12
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Versioning your REST API

When you create a RESTful API to serve an internal client, you probably don't have to worry about versioning your API. Taking things a step further, if you have control over all the clients that access your API, the same may be true.

However, in a case where you have a public API or an API where you do not have control over every client using it, versioning of your API may be required, as businesses need to evolve, which we will be covering in this recipe.

How to do it...

  1. Install the github.com/gorilla/mux package, using the go get command, as follows:
$ go get github.com/gorilla/mux
  1. Create http-rest-versioning.go where we will define two versions of the same URL path that support the HTTP...
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