Let's Go(Lang) !

by @yrezgui

Who am I ?

Yacine Rezgui — @yrezgui

French-Tunisian

Developer Evangelist

IBM Watson

#TrollMoment

#TrollMoment

Which one?

PHP

• Huge community
• All CMS are using it
• Big pool of talents
• Hosting
• Lot of security issues
• Apache is a black box
• Language design

Node.JS

• Everyone knows JavaScript
• Big hype
• Fast and simple
• Lot of tools
• Callback hell
• Instability with community packages
• Not typed (need TypeScript or Flow)

Java

• Performant
• Good for heavy tasks
• Verbose
• Resource consumption
• Good standard library

Python

• Simple to start
• Native support on Unix system
• Good for scripting and analytics
• Python 2/3 problem

Current languages are not good...Solution ?

What about Go ?

Golang feels like a scripting language, but with the elegance and speed of C.

Golang

• Designed at Google in 2007
• Open Sourced in 2009
• Stable since 2012
• Designed to scale to 10⁶⁺ machines
• Statically typed
• Scalable to large systems

Simplified language

• No classes
• No inheritance
• No constructors
• No final
• No exceptions
• No annotations

You can choose between Script or binary

Projects created with Go

• Docker
• Kubernetes
• Etcd
• Fleet
• InfluxDB
• CockroachDB
• Cayley

• Ngrok
• Websocketd
• Git-lfs
• Tile38
• Parse CLI
• Heroku CLI

Who use it ?

• Aerospike
• BBC Worldwide
• Bitbucket
• Booking.com
• Cloudflare
• Datadog
• Digital Ocean
• Dropbox
• Facebook
• Getty Images
• GitHub

• Shutterfly
• SmugMug
• SoundCloud
• SpaceX
• Square
• Stack Exchange
• Tumblr
• Twitch
• Twitter
• Uber
• VMWare

• GOV.UK
• Heroku
• IBM
• Intel
• Iron.io
• Medium
• Mozilla services
• Netflix
• New York Times
• pool.ntp.org
• Rackspace

Our first script

package main

import "fmt"

const g string = "constant"

func main() {

    var a string = "initial"
    fmt.Println(a)

    var b, c int = 1, 2
    fmt.Println(b, c)

    var d = true
    fmt.Println(d)

    var e int
    fmt.Println(e)

    f := "short"
    fmt.Println(f + " " + g)
}

Time for serious business...

IBM Watson

Cognitive APIs

Create BlueMix ACCOUNT

Create a Watson Translation instance

Create a Watson Text to Speech instance

Live coding time!

Read more

GOLANG.ORG

gobyexample.com

howistart.org/posts/go

@yrezgui

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