Go Essentials: Concurrency, Connectivity, and High-Performance Apps

Course details

Go is an open-source programming language created by Google, prized for its concurrency and connectivity. Using Go, developers can build modern applications that can save companies money on backend resources. This course is designed to help developers be productive with Go, starting with the essentials of the syntax. Learn the basics of Go basic types such as numbers and strings; working with conditionals and loops; creating object-oriented code with structs and methods; and handling errors. Instructor Miki Tebeka also emphasizes the concurrency features such as goroutines and channels, and connectivity features for networking with APIs and databases. For the final project, Mika shows you how to build a highly concurrent server that combines everything you've learned into one elegant solution powered by Go.

Concepts

Introduction

Go for modern applications
What you should know

Getting Started

Setting up your work environment
Anatomy of a Go program
The Go tool

Go Basics

Numbers and assignments
Conditionals
For loops
Challenge - FizzBuzz
Solution - FizzBuzz
Strings
Challenge - Even-ended numbers
Solution - Even-ended numbers
Slices
Challenge - Find the maximal value
Solution - Find the maximal value
Maps
Challenge - Maps
Solution - Maps

Functions

Defining a function
Parameter passing
Error return
Defer
Challenge - Write a function
Solution - Write a function

Object-Oriented

Structs
Methods
Creating structs with New function
Challenge - Structs
Solution - Structs
Interfaces
Challenge - Interfaces
Solution - Interfaces
Generics

Error Handling

pkg errors
Panic and recover
Challenge - Server kill
Solution - Server kill

Concurrency

Goroutines
Channels
Challenge - Channels
Solution - Channels
Select
Context
Challenge - Download size
Solution - Download size

Project Management

Manage requirements
Testing
testify
Challenge - Testing
Solution - Testing
Benchmarking and profiling

Networking

JSON
HTTP calls
Timeouts & Size Limit
Challenge - Call the GitHub API
Solution - Call the GitHub API
HTTP server
Challenge - Key-value database
Solution - Key-value database

Conclusion

Next steps