Full-Stack Web Development with Go: Build your web applications quickly using the Go programming language and Vue.js

302 Pages·2023·19.645 MB·English

by  Nanik Tolaram, Nick Glynn

Full-Stack Web Development
with Go
Build your web applications quickly using the Go programming
language and Vue.js
Nanik Tolaram
Nick Glynn
BIRMINGHAM—MUMBAI
Full-Stack Web Development with Go
Copyright © 2023 Packt Publishing
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First published: February 2023
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ISBN 978-1-80323-419-9
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To my dearest Mum, who always supported me in pursuing my dreams and encouraged me to keep on
going no matter what life brought.
To my late Dad, who stood by me and encouraged me to write my very first book when I was
17 years old.
To my beautiful wife and best friend, for allowing me the time to write the book and supporting me in
every step of our life.
To both my sons, Rahul and Manav, for allowing me to spend time in front of the computer on
weekends to chase my dream and passion. Last but not least, to God, for giving me this life and the
opportunity to be where I am in this world.
– Nanik Tolaram
I would like to thank my family for their love; my beautiful daughter Inara, for always being there
to brighten my day; and my beautiful partner Kate, for all her support in my business efforts and in
writing this book.
– Nick Glynn
Contributors
About the authors
Nanik Tolaram is a big proponent of open source software. He has dabbled in different programming
languages, such as Java, JavaScript, C, and C++. He has developed different products from the ground
up while working in start-up companies. He is a software engineer at heart, but he loves to write
technical articles and share his knowledge with others. He learned to program with Go during the
COVID-19 pandemic and hasn’t looked back.
I want to thank the Packt team – Feza Shaikh, Bhavya Rao, Manthan Patel, and Mark D’Souza – for
their guidance and patience in helping us complete the book.
Nick Glynn is the founder and current chief product officer of FeeWise, a US payments and finance
platform.
He has previously worked in CTO, senior, and principal engineering roles developing products, training,
and consulting for companies such as Intel, Qualcomm, Hewlett Packard, L3, and many more.
With a broad range of experience from board bring-up, Linux driver development, and systems
development up through to building and deploying platforms that power investment and financial
institutions, Nick is always looking to build pragmatic solutions to real-world problems.
Nick also continues his independent efforts as a trainer and consultant, delivering courses and expertise
globally through his company Curiola (www.curiola.com).
About the reviewers
Pablo David Garaguso was born in Mar del Plata, Argentina. He graduated with two degrees in
computer sciences and enterprise systems from CAECE University and later on received an MBA
from CEMA University in Buenos Aires, Argentina. He has worked as an attached professor, project
leader, and international manager, and currently occupies a position as a solutions architect in R&D
for FamilySearch Int. Europe. Based in Finland, he has published a variety of books according to his
many interests, from novels and fiction to software engineering. His latest book, Vue 3 Applications
and Design Patterns, will be published by Packt in 2023.
Suraj Bobade is an experienced software professional, currently located in Pune, India. He completed
a B.Tech in computer science from Walchand College of Engineering, Sangli.
He is passionate about software development with a keen interest in product management. He builds
user-first feature-rich products while driving critical software and product design decisions.
Go has been his go-to choice for building the microservice backend and prototypes. Considering the
simplicity and increasing adoption by the open source community, Suraj is optimistic that readers of
this book will learn in-demand skills.
Tan Quach is an experienced software engineer with a career spanning over 25 years and exotic locations
such as London, Canada, Bermuda, and Spain. He has worked with a wide variety of languages and
technologies for companies such as Deutsche Bank, Merrill Lynch, and Progress Software, and loves
diving deep into experimenting with new ones.
Tan’s first foray into Go began in 2017 with a proof-of-concept application built over a weekend and
productionized and released 3 weeks later. Since then, Go has been his language of choice when
starting any project.
When he can be torn away from the keyboard, Tan enjoys cooking meat over hot coals and open
flames and making his own charcuterie.
Nima Yahyazadeh is a Software Architect focused on developing solutions for startups. He has years
of experience developing distributed and cloud-native solutions. He has worked at medium to large
corporations such as Amazon Web Services, Intel, and Appian. He is currently the founder and CEO
of a consulting company, Lenzo LLC, that has helped more than five startups to architect, develop, and
deliver exciting features to their customers. He is passionate about AWS, Kubernetes, Elasticsearch,
Kafka, and Golang.

Table of Contents
Preface xi
Part 1: Building a Golang Backend
1
Building the Database and Model 3
Technical requirements 4 Using sqlc 11
Installing Docker 4 Setting up the database 13
Setting up Postgres 5 Generating CRUD with sqlc 14
Designing the database 6 Building the makefile 21
Installing sqlc 9 Summary 22
2
Application Logging 23
Technical requirements 23 Writing log messages to the
Exploring Go standard logging 23 logging server 30
Using golog 26 Configuring multiple outputs 33
Local logging 29 Summary 36
3
Application Metrics and Tracing 37
Technical requirements 37 The OpenTelemetry APIs and SDK 39
Understanding OpenTelemetry 38 Tracing applications 40
viii Table of Contents
Installing Jaeger 41 Adding metrics using Prometheus 50
Adding metrics using Prometheus 52
Integrating the Jaeger SDK 43
Integration with Jaeger 44 Running docker-compose 58
Summary 60
Part 2: Serving Web Content
4
Serving and Embedding HTML Content 63
Technical requirements 63 Rendering static content 72
Handling HTTP functions and Rendering dynamic content 74
Gorilla Mux 63 Using Go embed to bundle
Hello, World with defaults 64 your content 78
Building on the basics with Gorilla Mux 67 Summary 83
5
Securing the Backend and Middleware 85
Technical requirements 85 Adding cookies and sessions 92
Adding authentication 86 Cookies and session handling 92
Creating our dummy user 88 Storing session information 95
Authenticating a user 89 Using Redis for a session 95
Adding middleware 90 Summary 97
Basic middleware 90
6
Moving to API-First 99
Technical requirements 99 Exposing our REST API 102
Structuring an application 100 Cross-Origin Resource Sharing (CORS) 104
Defining packages 100 JSON middleware 105
Session middleware 107
Table of Contents ix
Converting to and from JSON 108 Using JSONError 112
Defining request model 109 Using JSONMessage 114
Defining a response model 111
Summary 115
Reporting errors with JSON 112
Part 3: Single-Page Apps with Vue and Go
7
Frontend Frameworks 119
Technical requirements 119 Application and components 124
Server-side rendering versus single- Login page using Vue 124
page apps 119 Using Vite 127
Introducing React, Vue, and more 120
Using Vue Router to move around 130
React 120
Routing the login page 132
Svelte 121
Summary 133
Vue 121
Creating a Vue app 124
8
Frontend Libraries 135
Technical requirements 135 Setting up Buefy 141
Understanding Vuetify 136 UI components 142
Setting up Vuetify 136 Validating data entry with Vuelidate 143
Using UI components 137 Better input handling with Cleave.JS 148
Understanding Buefy 139 Summary 150
Bulma sample 140
9
Tailwind, Middleware, and CORS 151
Technical requirements 151 Introducing Tailwind 151