The Go programming language - Intro by MyLittleAdventure

Jan 9, 20190 likes48 views

The document discusses the Go programming language, providing information on its history, characteristics, pros and cons, benchmarking, major companies using it, and the future of Go2. It then discusses how Go could be used by MyLittleAdventure for web development, APIs, software development, machine learning, and provides an example of scraping hotel data from Booking.com to display on a server.

The Go programming Language
Valéry BERNARD - CEO & Founder
valery.bernard@mylittleadventure.com
(+33) 6.17.21.52.81 - ! @mylitadventure
Sophia-Antipolis (06) - France

The Go programming language
History
Go (often referred to as Golang) is a programming language designed
by Google engineers Robert Griesemer (Hotspot & JVM), Rob Pike (Unix
& UTF-8), and Ken Thompson (B, C, UTF-8).
Go was conceived in 2007 to improve programming productivity at
Google, in an era of multicore processors, computer networks,
and large codebases.

Platform is a new way of thinking
Experience, services, channels

The Go programming language
Characteristics
Statically typed
Performant
Multiple-cores
Concurrency
Compiled
Network
Built-in HTTP / JSON / XML
No class

The Go programming language
Pro & Cons
Clean syntax
Powerful standard library
Garbage collected
Portable
Compile very quickly
Built-in unit testing
Fast learning
Backed by Google
Open Source
No manual Memory Mgt
Lack of Runtime safety
Interfaces
Few developers available
Pro Cons

The Go programming language
Who is using it?
Algolia, Adobe, Basecamp, bit.ly, CircleCI, Crème de la crème, Dailymotion,
Facebook, Github, Heetch, LeBonCoin, PSA, TF1, Zenly, Intel, Netﬂix, New york
Times, Pinterest, Reddit, Stripe, Tencent, Tumblr, Twitter, Heroku, Uber, Yahoo,
Zalando,
And many others

The Go programming language
The future - Go2
Generics
Package Management
Error handling
…

The Go programming language
Where?
Web
API, Web & Mobile, templating
Softwares
Computing, Image processing, Scrappers,
Daemons, Messaging system, Database
management, Internal framework
Machine Learning
Live computing, Recommandation
engine, features scoring

The Go programming language
Why?
Perfomance
Quick batch computing

Live computing (x100)

Productivity
Code fast

Software deployment (Docker)

Less dependencies

Company
Improve team coordination

Better readability

Promising language
Eﬃciency
Less servers (cost)

Better scalability

The Go programming language
Booking.com website

The Go programming language
Scrapper / Server example
Display listing of hotel in Nice
from booking.com website
Create an http client

Create packages

Booking.com scrapping

Goquery library

Go routines / Channels
Get Hotel’s title / Thumbnail / Rating

HTML templating

The Go programming language
Scrape function

The Go programming language
Server - HTML / API

The Go programming language
HTML Template

The Go programming language
Resources
Curated list of packages
https://github.com/avelino/awesome-go
Showcases of features
https://gobyexample.com/
Golang oﬃcial tour
https://tour.golang.org/welcome/1
MyLittleAdventure github
https://github.com/mylittleadventure/meetup-golang-intro

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The Go programming language - Intro by MyLittleAdventure

1. The Go programming Language Valéry BERNARD - CEO & Founder [email protected] (+33) 6.17.21.52.81 - ! @mylitadventure Sophia-Antipolis (06) - France

2. Golang Why a new language?

3. The Go programming language History Go (often referred to as Golang) is a programming language designed by Google engineers Robert Griesemer (Hotspot & JVM), Rob Pike (Unix & UTF-8), and Ken Thompson (B, C, UTF-8). Go was conceived in 2007 to improve programming productivity at Google, in an era of multicore processors, computer networks, and large codebases.

4. Platform is a new way of thinking Experience, services, channels

5. Platform is a new way of thinking Experience, services, channels

6. The Go programming language Characteristics Statically typed Performant Multiple-cores Concurrency Compiled Network Built-in HTTP / JSON / XML No class

7. The Go programming language Pro & Cons Clean syntax Powerful standard library Garbage collected Portable Compile very quickly Built-in unit testing Fast learning Backed by Google Open Source No manual Memory Mgt Lack of Runtime safety Interfaces Few developers available Pro Cons

8. The Go programming language Benchmark

9. The Go programming language Who is using it? Algolia, Adobe, Basecamp, bit.ly, CircleCI, Crème de la crème, Dailymotion, Facebook, Github, Heetch, LeBonCoin, PSA, TF1, Zenly, Intel, Netﬂix, New york Times, Pinterest, Reddit, Stripe, Tencent, Tumblr, Twitter, Heroku, Uber, Yahoo, Zalando, And many others

10. The Go programming language The future - Go2 Generics Package Management Error handling …

11. Golang & MyLittleAdventure

12. The Go programming language Where? Web API, Web & Mobile, templating Softwares Computing, Image processing, Scrappers, Daemons, Messaging system, Database management, Internal framework Machine Learning Live computing, Recommandation engine, features scoring

13. The Go programming language Why? Perfomance Quick batch computing Live computing (x100) Productivity Code fast Software deployment (Docker) Less dependencies Company Improve team coordination Better readability Promising language Eﬃciency Less servers (cost) Better scalability

14. Golang In practice

15. The Go programming language Booking.com website

16. The Go programming language Scrapper / Server example Display listing of hotel in Nice from booking.com website Create an http client Create packages Booking.com scrapping Goquery library Go routines / Channels Get Hotel’s title / Thumbnail / Rating HTML templating

17. The Go programming language Entry point

18. The Go programming language Scraper

19. The Go programming language Scrape function

20. The Go programming language Server - HTML / API

21. The Go programming language HTML Template

22. The Go programming language Json result

23. The Go programming language HTML page

24. Golang Ressources

25. The Go programming language Resources Curated list of packages https://github.com/avelino/awesome-go Showcases of features https://gobyexample.com/ Golang oﬃcial tour https://tour.golang.org/welcome/1 MyLittleAdventure github https://github.com/mylittleadventure/meetup-golang-intro

26. #LiveYourDreamNow

The Go programming language - Intro by MyLittleAdventure

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