An Introduction to the Go Language - Golang Basics with Code Examples

Go (or golang ) is a programming language created at Google in 2007 by Robert Griesemer, Rob Pike, and Ken Thompson. It is a compiled, statically-typed language in the tradition of Algol and C. It has garbage collection, limited structural typing, memory safety, and CSP-style concurrent programming features added. The compiler and other language tools originally developed by Google are all free and open source. Its popularity is increasing fast. It is a great choice for building web applications.

For more information head to Go’s Homepage

Want a quick Tour of Go?

Pre-Installations:

Install Golang with Homebrew:

$ brew update
$ brew install golang

When installed, try to run go version to see the installed version of Go.

Setup the workspace:

Add Environment variables:

First, you will need to tell Go the location of your workspace.

You will add some environment variables into shell config. One of those files is located in your home directory bash_profile, bashrc or .zshrc (for Oh My Zsh Army)

$ vi .bashrc

then add those lines to export the required variables

This is actually your .bashrc file

export GOPATH=$HOME/go-workspace # don't forget to change your path correctly!
export GOROOT=/usr/local/opt/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin

Create your workspace:

Create the workspace directories tree:
$ mkdir -p $GOPATH $GOPATH/src $GOPATH/pkg $GOPATH/bin
$GOPATH/src : Where your Go projects / programs are located
$GOPATH/pkg : contains every package objects
$GOPATH/bin : The compiled binaries home

Quickstart

For a quickstart and boilerplate Go project, try Alloy

  1. Clone Alloy repository
git clone https://github.com/olliecoleman/alloy
cd alloy
  1. Install the dependencies
glide install
npm install
  1. Start the development server
go install
alloy dev
  1. Visit website at http://localhost:1212

Alloy uses Node, NPM, and Webpack

Go Playground

Go Playground

Learning how to install go on your local machine is important, but if want to start playing with go right in your browser, then Go Playground is the perfect sandbox to get started right away! To learn more about the Go Playground see their article titled Inside the Go Playground

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