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.

Preface

Who this book is for

What this book covers

To get the most out of this book

Free Chapter

Creating Your First Server in Go

Creating Your First Server in Go

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

Working with Templates, Static Files, and HTML Forms

Working with Templates, Static Files, and HTML Forms

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

Working with Sessions, Error Handling, and Caching in Go

Working with Sessions, Error Handling, and Caching in Go

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

Writing and Consuming RESTful Web Services in Go

Writing and Consuming RESTful Web Services in Go

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

Working with SQL and NoSQL Databases

Working with SQL and NoSQL Databases

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

Writing Microservices in Go Using Micro – a Microservice Toolkit

Writing Microservices in Go Using Micro – a Microservice Toolkit

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

Working with WebSocket in Go

Working with WebSocket in Go

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

Working with the Go Web Application Framework – Beego

Working with the Go Web Application Framework – Beego

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

Working with Go and Docker

Working with Go and Docker

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

Securing a Go Web Application

Securing a Go Web Application

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

Deploying a Go Web App and Docker Containers to AWS

Deploying a Go Web App and Docker Containers to AWS

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

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Handling HTTP errors in Beego

Error handling is one of the most important aspects in a web application design because it helps in two ways. Firstly, it lets the application user know in a relatively friendly manner that something has gone wrong and they should contact the technical support department or someone from tech support should be notified. Secondly, it allows the programmer to put in some niceties to aid in the debugging of issues. In this recipe, we will learn how we can implement error handling in Beego.

How to do it...

Move to $GOPATH/src/my-first-beego-project/controllers and create errorcontroller.go, where we will define handlers to handle 404 and 500 HTTP errors as well as the handler to handle any generic...