Golang for Jobseekers: Unleash the power of Go programming for career advancement 9789355518538

Table of contents :
Cover Page
Title Page
Copyright Page
Dedication
About the Author
About the Reviewers
Acknowledgements
Preface
Table of Contents
1. Understanding Golang and its Potential
Introduction
Structure
Objectives
Characteristics of Golang Programming Language
Statically typed
Garbage collection
Cross-compilation
“Batteries Included” standard library
Version guarantees
What kind of development work is Golang used in?
Web applications
Command Line Interface (CLI)
Major applications written with Golang
Docker
Kubernetes
CockroachDB
Companies that use Golang
Cloudflare
Monzo
Conclusion
2. Golang Fundamentals
Introduction
Structure
Objectives
Golang playground
Installing and running Golang locally
Main function in main package
Imports
Variable initialization
Basic types
List
Maps
Writing functions
Structs
Interfaces
Loops
Public versus private
Using “Go” verb
Channels
Errors
Conclusion
3. Exploring Data Structures
Introduction
Structure
Objectives
Singly linked list
Doubly linked list
Circular linked list
Stack
Queue
Binary tree
Hashed maps
Conclusion
4. Understanding Algorithms
Introduction
Structure
Objectives
Big O notation
Sorting algorithms and their importance
Bubble sort
Merge sort
Quick sort
Binary search
Dynamic programming
Conclusion
5. Getting Comfortable with Go Proverbs
Introduction
Structure
Objectives
The bigger the interface, the weaker the interface
Make the zero value useful
interface{} says nothing
Gofmt’s style is no one’s favorite, yet everyone’s favorite
Errors are values
Do not just check errors, handle them gracefully
Documentation is for users
Do not panic
Accept interfaces, return structs
Never use global variables
Conclusion
6. Building REST APIs
Introduction
Structure
Objectives
Why learn to build REST APIs?
HTTP verbs
HTTP status codes
Building a “Hello World” REST API Golang application
Building a URL shortener
Conclusion
7. Testing in Golang
Introduction
Structure
Objectives
Why build tests?
Test-driven development
Writing a simple unit test
Table driven tests
Mocking
Setup and teardown of environments within tests
HTTP testing
Golden files
Conclusion
8. Deploying a Golang Application in a Virtual Machine
Introduction
Structure
Objectives
Using SSH
Using SCP
Using Systemd to run the Golang application
Debugging the Golang application on the server
Real-life deployments with virtual machines
Conclusion
9. Deploying a Containerized Golang Application
Introduction
Structure
Objectives
Docker basics
Docker command basics
Building a Golang application in a Docker container
Using Docker compose on a local workstation
Using docker-compose on a virtual machine
Deploying the application via Kubernetes
Conclusion
10. Microservices with Golang Applications
Introduction
Structure
Objectives
What are microservices, and why are microservices?
Demo-ing an application stack with multiple applications via docker-compose
Demo-ing an application with multiple applications in Kubernetes
Conclusion
11. Introduction to Monitoring and Logging
Introduction
Structure
Objectives
Why monitoring and logging are important?
Introduction to Prometheus
Instrumenting an application with metrics to be consumed by Prometheus
Viewing metrics on Prometheus
Quick word on logging
Conclusion
12. Adding Concurrency in Golang Application
Introduction
Structure
Objectives
Concurrency features in Golang
Exchanging messages and persisting it locally
Using channels to receive interrupts in a program
Live reload of configurations
Parallelize parts of an application
Conclusion
13. What is Next?
Introduction
Structure
Objectives
GRPC—alternative communication protocols
SRE principles for reliable applications
Profiling
Working with data storage
Embedding files
Generics
Fuzzing
Conclusion
Index