Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
Javascript: Primeiros Passos
Search
Dmitry Rocha
July 18, 2015
Technology
96
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
Javascript: Primeiros Passos
Meus primeiros passos em Javascript no backend.
Dmitry Rocha
July 18, 2015
More Decks by Dmitry Rocha
See All by Dmitry Rocha
Crystal Lang - Introduction
dmitryrck
0
150
Docker (for developers)
dmitryrck
0
240
Introdução a testes automatizados
dmitryrck
0
62
Introdução a Linguagem Crystal
dmitryrck
0
320
Docker
dmitryrck
0
81
Scoola Talk
dmitryrck
0
72
Testes, testes everywhere
dmitryrck
0
61
Saltos no Vim - GURUPI
dmitryrck
0
56
Other Decks in Technology
See All in Technology
Rust で関数型ドメインモデリング
takonda
0
140
脆弱性診断って、何をしているの? 〜弱点を見つけて、会社の改善につなげるまで〜
keeg
0
920
JAWS-UGグッズ職人仕事の流儀
kentapapa
0
100
しろおびから始める!ログ活用の第一歩
shumei_ito
0
950
AI駆動開発の時代になったのでトヨタ生産方式から見直す
terurou
7
6k
分析の民主化を支えるメタデータ整備の実践
kakehashi
PRO
4
1.4k
分析AIエージェントを育てる、動く環境を育てる
codatum
1
1.1k
アウトプット初心者、半年間のふりかえり
4o1sobblue
0
430
Local CI × GitHub Actions
gogutan
2
190
Getting Started with Google Antigravity
glaforge
0
300
Running Kotlin + Quarkus with Lambda
nealle
1
3.7k
サブエージェントと Claude Mods で作る独自 Advisor ツールの話
kenichiodo
2
160
Featured
See All Featured
Marketing Yourself as an Engineer | Alaka | Gurzu
gurzu
0
330
Navigating Algorithm Shifts & AI Overviews - #SMXNext
aleyda
1
1.7k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
141
35k
Jess Joyce - The Pitfalls of Following Frameworks
techseoconnect
PRO
1
450
Deep Space Network (abreviated)
tonyrice
0
370
Intergalactic Javascript Robots from Outer Space
tanoku
273
28k
A Tale of Four Properties
chriscoyier
163
24k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
35
3.8k
How to Align SEO within the Product Triangle To Get Buy-In & Support - #RIMC
aleyda
2
1.8k
Facilitating Awesome Meetings
lara
57
7.2k
Building an army of robots
kneath
307
47k
[Rails World 2026] Durable orchestration on Rails: from continuation to workflow
palkan
1
750
Transcript
Javascript: Primeiros Passos Dmitry Rocha GURUPI, PUG-PI, THC, … July
18, 2015 1 / 25
Mas primeiro: Javascript no backend E Primeiros passos 2 /
25
Meu projeto, minhas regras 1. Liberdade de escolha da tecnologia;
2. Esta parte do projeto: banco de dados somente leitura; 3. Servidor e banco de dados legado; 3 / 25
Eu não decidi fazer em javascript. 4 / 25
Eu fui… …marotamente tentando acessar o banco de dados via
js… 5 / 25
Eu fui… …marotamente tentando acessar o banco de dados via
js… …”vou renderizar uma notíciazinha aqui”… 6 / 25
Eu fui… …marotamente tentando acessar o banco de dados via
js… …”vou renderizar uma notíciazinha aqui”… …PUTZ: FIZ A PORRA TODA EM JS. 7 / 25
Javascript Básico + Testes 8 / 25
Javascript Básico + Testes $ npm init 9 / 25
Javascript Básico + Testes $ npm init $ npm install
mocha --save-dev 10 / 25
Javascript Básico + Testes $ npm init $ npm install
mocha --save-dev $ npm install expect.js --save-dev 11 / 25
Live coding ;) 12 / 25
Banco de Dados sequelizejs.com 13 / 25
Banco de Dados $ npm install sequelize 14 / 25
Live coding? Not today 1 var DataTypes = require('sequelize'); 2
var sequelize = new DataTypes('database', 'username', 3 'password', { 4 logging: false, port: 'port', host: 'host' 5 }); 6 var db = {}; 7 8 db.DataTypes = DataTypes; 9 db.sequelize = sequelize; 10 11 var news = sequelize['import'](__dirname + '/news'); 12 var section = sequelize['import'](__dirname + '/section'); 13 db.news = news; 14 db.section = section; 15 db.news.belongsTo(db.section, { foreignKey: 'secao_id' }); 16 17 module.exports = db; 15 / 25
Banco de Dados: ”model” 1 module.exports = function(sequelize, DataTypes) {
2 return sequelize.define('news', { 3 title: DataTypes.STRING, 4 content: DataTypes.TEXT, 5 status: DataTypes.INTEGER, 6 date: DataTypes.DATE, 7 'secao_id': DataTypes.STRING 8 }, { 9 tableName: 'noticias', 10 underscored: true, 11 timestamps: false, 12 scopes: { 13 'feed': { 14 where: { status: 1 }, 15 order: [ ['id', 'desc'] ], 16 limit: 20 17 }, 18 } 19 }); 20 }; 16 / 25
Banco de Dados: teste 1 process.env.NODE_ENV = 'test'; 2 var
expect = require('expect.js'); 3 describe('News', function(){ 4 before(function() { 5 this.db = require('../../models'); 6 7 this.news = { 8 title: 'Letters from Germany', slug: 'letters-from-germany', data: new Date() 9 }; 10 }); 11 12 beforeEach(function() { return this.db.news.destroy({ truncate: true }); }); 13 14 describe('create', function() { 15 it('should be persisted', function(done) { 16 return this.db.news.create(this.news).then(function(news) { 17 expect(news.isNewRecord).to.equal(false); 18 19 return done(); 20 }); 21 }); 22 23 it('has title', function(done) { 24 return this.db.news.create(this.news).then(function(news) { 25 expect(news.titulo).to.equal('Letters from Germany'); 26 27 return done(); 28 }); 29 }); 30 // … 31 }); 32 }); 17 / 25
Servidor Web expressjs.com 18 / 25
Servidor Web $ npm install express 19 / 25
Servidor Web: exemplo básico 1 var express = require('express'); 2
var app = express(); 3 4 app.get('/', function (req, res) { 5 res.send('Hello World!'); 6 }); 7 8 var server = app.listen(3000, function () { 9 var host = server.address().address; 10 var port = server.address().port; 11 12 console.log('Example app listening at http://%s:%s', host, port); 13 }); 20 / 25
Servidor Web: Gerador $ npm install express-generator -g 21 /
25
Servidor Web: Gerador $ npm install express-generator -g $ express
myapp --ejs 22 / 25
Servidor Web: Gerador $ npm install express-generator -g $ express
myapp --ejs Live showing, exemplo do gerador. 23 / 25
Mais informações no meu blog. Fiz duas postagens sobre uso
do sequelize com jasmine 1 e sequelize com mocha 2. 1Jasmine e Sequelize: Uma introdução - http://dmitryrck.github.io/jasmine-sequelize/ 2Mocha, expect.js e Sequelize: Uma introdução - http://dmitryrck.github.io/mocha-sequelize/ 24 / 25
25 / 25