Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
The Road to Node
Search
Guille Paz
October 28, 2017
Programming
0
250
The Road to Node
The Road to Node (at a big company).
Guille Paz
October 28, 2017
Tweet
Share
More Decks by Guille Paz
See All by Guille Paz
No me robes el Scroll!
pazguille
0
260
User First
pazguille
1
210
#OfflineFirst
pazguille
3
5.9k
ES6 in Production
pazguille
10
3.2k
No me hagas esperar!
pazguille
1
180
CSS Sprites vs. Data URIs
pazguille
0
440
Hello, Style Guides!
pazguille
0
270
Decoupling your JavaScript
pazguille
0
180
Progressive Enhancement - Is it still important?
pazguille
0
130
Other Decks in Programming
See All in Programming
HTTPプロトコル正しく理解していますか? 〜かわいい猫と共に学ぼう。ฅ^•ω•^ฅ ニャ〜
hekuchan
2
680
360° Signals in Angular: Signal Forms with SignalStore & Resources @ngLondon 01/2026
manfredsteyer
PRO
0
120
なぜSQLはAIぽく見えるのか/why does SQL look AI like
florets1
0
450
Apache Iceberg V3 and migration to V3
tomtanaka
0
160
OCaml 5でモダンな並列プログラミングを Enjoyしよう!
haochenx
0
140
Vibe Coding - AI 驅動的軟體開發
mickyp100
0
170
React 19でつくる「気持ちいいUI」- 楽観的UIのすすめ
himorishige
11
7.4k
Lambda のコードストレージ容量に気をつけましょう
tattwan718
0
120
フロントエンド開発の勘所 -複数事業を経験して見えた判断軸の違い-
heimusu
7
2.8k
責任感のあるCloudWatchアラームを設計しよう
akihisaikeda
3
170
AgentCoreとHuman in the Loop
har1101
5
230
Honoを使ったリモートMCPサーバでAIツールとの連携を加速させる!
tosuri13
1
180
Featured
See All Featured
Fashionably flexible responsive web design (full day workshop)
malarkey
408
66k
Thoughts on Productivity
jonyablonski
74
5k
Tell your own story through comics
letsgokoyo
1
810
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
46
2.7k
StorybookのUI Testing Handbookを読んだ
zakiyama
31
6.6k
A Soul's Torment
seathinner
5
2.2k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
47
7.9k
Building a A Zero-Code AI SEO Workflow
portentint
PRO
0
310
Lightning talk: Run Django tests with GitHub Actions
sabderemane
0
110
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
kimpetersen
PRO
0
240
Music & Morning Musume
bryan
47
7.1k
Stop Working from a Prison Cell
hatefulcrawdad
273
21k
Transcript
The Road to Node at a big company
- I’m Guille Paz - Frontend developer - Tech Lead
at Mercado Libre @pazguille (twitter / github) Hi!
Mercado Libre
Largest e-commerce ecosystem in Latin America
None
~ 1500 developers
~ 1500 developers ~ 4600 repositories
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day ~ 800 frontend apps
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day ~ 800 frontend apps ~ 3 Million rpm
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day ~ 800 frontend apps ~ 3 Million rpm ~ 900 coffees per day
Back to 2016
Frontend Frontend developers Backend developers
Frontend
Frontend Access Data UI Logic Business Logic Build assets Auth
i18n e2e testing ...
TOO many Technologies
TOO many Responsibilities
It’s a kilombo!
“The world is changing and we must change with it.”
- Ragnar Lothbrok
Hey Guille, coffee? Hey, what's happened? Nothing, just running grails
run-app... Sure! I have 10-15 mins.
New Team Frontend Core
We made Big decisions!
Node is the new UI Layer
Frontend Middleend UI Layer Business Logic
Frontend API API Middleend
Frontend API API Middleend Mobile Native
None
The new frontend stack
None
LTS version
None
None
None
ES6 Modules vs CommonJS
None
None
Use ES Features and don’t transpile the server.
node.green
None
six-speed
None
Use ES Stable Features and don’t transpile the server.
None
Shared Version
Default Middlewares
Authentication Device Detection Security Default Middlewares
Default Routes (“/ping”)
An Express Instance on Steroids
Routers (“mini-applications”)
Start Server (development vs production)
None
Using React Is A Business Decision, Not A Technology Choice.
- Eric Baer
Server-Side Rendering
React on the Server
Only transpile JSX in runtime
JSX (template engine)
res.render(‘View.js, props);
None
Render React Middleware
Override res.render( ).
res.render(<View />, props);
Universal UI Components
Universal Views
React on the Server & Client
None
Hey Guille, coffee? Hey, what's happened? Nothing, just running npm
install... Sure! I have 2-3 mins.
None
None
nordic & nordic-dev packages
None
None
react-router on the server
None
None
[email protected]
async hooks (onEnter ) are defined globally
None
None
process.env
It’s not a normal JavaScript object...
Server rendering is slower...
cache all the values!
React 16
Takeaway
⇢ Knows your dependencies ⇢ Node is the new UI
Layer ⇢ New roles and responsibilities ⇢ ~ 126 coffees per day (86% real) ⇢ Today we feel like...
None
None
Thank you! @pazguille