Slides from a Go Lang Coding Dojo I ran recently at a client. The slides are pretty brief as most of the session was spent looking through Tour of Go (http://tour.golang.org/) and a sample project I put together for the coding dojo: https://github.com/clarenceb/jokes_api_golang

1. Intro to Go (aka golang)
By Clarence Bakirtzidis
!
Twitter: @clarenceb_oz | Email: clarenceb@gmail.com, cbakirtz@thoughtworks.com
Image credit: https://github.com/golang-samples/gopher-vector/blob/master/gopher.png

2. What is Go?
• Programming language developed at Google in 2007 by
Robert Griesemer, Rob Pike, and Ken Thompson
• Compiled, Statically-Typed language with “C”-like syntax
• Designed to be a simple language to learn
• Addresses real scalability and productivity problems at
Google
• Developed because the inventors disliked C++ ;)
Image credits: http://talks.golang.org/2012/splash/datacenter.jpg

3. Why Go? (in quotes)
“The goals of the Go project were to eliminate the
slowness and clumsiness of software development at
Google…”
“The language was designed by and for people who write and read
and debug and maintain large software systems.”
“Go's purpose is therefore not to do research into
programming language design…”
“Less is exponentially more”
Excerpts from: http://talks.golang.org/2012/splash.article, http://commandcenter.blogspot.com.au/2012/06/less-is-exponentially-more.html
Image credit: http://rouninurashima.files.wordpress.com/2012/05/gordon_unicorn1.png

4. What is it good for?
• Systems Programming - like C but easier, low-level access, C-interop
• Web Services - It has just about everything you need built into the Standard Library
• Concurrent Programming - Its built into the language: goroutines and channels
• Target multiple platforms - Linux, Windows, Mac OS X, Free BSD
• Simple deployments - Your app is a single binary with no other dependencies
• Large scale development!
• Easy to read, write, maintain
• Garbage collected, statically-typed, fast compilation, fast execution
Image credit: http://blog.golang.org/go-11-is-released_gopherbiplane5.jpg

5. • Google!
• SoundCloud!
• Docker!
• Dropbox!
• DigitalOcean
Who uses it?
• Hashcorp (Serf, Terraform,
Consul, Packer)
• Rackspace (Airbrake,
Gophercloud)
• SendGrid!
• Many more...
Image credit: https://developer.rackspace.com/blog/gophercloud/

6. Into the codes…
1. Selected examples from Tour of Go (http://tour.golang.org/)
2. Sample RESTful API and Commandline tool:
• https://github.com/clarenceb/jokes_api_golang
Image credit: https://talks.golang.org/2012/splash/appenginegophercolor.jpg

7. Learning Resources
• Essential background reading:!
• http://commandcenter.blogspot.com.au/2012/06/less-is-exponentially-more.html
• http://talks.golang.org/2012/splash.article
• Start Learning Go now:!
• Tour of Go (http://tour.golang.org/) - Interactive hands-on tour of Go
• How I Start - Go (http://howistart.org/posts/go/1) - Go setup and sample wed service
• Go by Example (https://gobyexample.com/) - Annotated examples
• Go Programming Language Official Site (http://golang.org/) - Blog, Docs, etc.
Image credit: https://golang.org/doc/gopher/doc.png

8. The End
Image credit: http://blog.golang.org/gif-decoder-exercise-in-go-interfaces_image00.jpg