GolangGetting started

Not a talk – reference deck

What is go?•  Statically-typed language //resembles C• Concurrency• Garbage collection• Type safety – with some dynamic typing• Fast compilation • Remote package management • Great builtins

… C + some Awesome stuff

The Mandatory

• http://play.golang.org/p/OccSs5jC9Y

package main

import "fmt”

func main() {fmt.Println("Hello World!")

}

Built for networks

• A simple server

package main

import "fmt” Import "net/http”

func hello(w http.ResponseWriter, r *http.Request) {fmt.Fprint(w, "Hello Client") //write response

}func main() {

http.HandleFunc("/", hello //attach handler http.ListenAndServe(":8080”, nil) //start server}

ConcurrencyGreen Threading like python – goroutines

no Gil like limitationshttps://gobyexample.com/goroutines

Utilize multiple coresgoroutines can be run on multiple threads

External pacakgesgo get <package_name>e.g. go get github.com/goibibo/gorpc

Installs to your specified patheasily install forks

Also checkout godep, https://github.com/tools/godep for better managing dependencies of your project

Builtins

Just checkout https://golang.org/pkg/

You can see the source at https://golang.org/src/

Start- tour• Take the tour, complete it tour.golang.org• Check http://openmymind.net/The-Little-Go-Book/ for a light introduction

Start- install

• Install locally (1.4 for now)• http://golang.org/doc/install• Or the docker image if you prefer https://hub.docker.com/r/google/golang/

Start – more stuff

• How to write Go code• Effective Go• http://golang.org/doc/effective_go.html

• Best Practices• https://talks.golang.org/2013/bestpractices.slide#1

Start – some more stuff

• Organising Go code by David Crawshaw, presented at Google I/O 2014.• Contributing to Open Source Git Repositories in Go by Katrina Owen.

Dev Environment - editors• Sublime Text 3

http://eefret.me/making-sublime-your-golang-ide/

• LiteIde http://

www.i-programmer.info/programming/other-languages/6600-a-programmers-guide-to-go-with-liteide-part-1.html

Dev Environment – tools• go fmt• golint

Right tool for the right problem…• Good for

Backend APIs Process Heavy stuff Non blocking IO, service calls

• Not so great Templating ORMs

… But still growing