The document provides an overview of a NodeJS CRUD and deployment course. The course outline includes: setting up a NodeJS environment on SmartOS with MySQL and Git in 3 minutes; tools for cloud development like SSH, SCP, and Git; building a simple web server with authorization using Passport and CRUD functionality with MySQL; and advanced topics like load balancing for cloud services. The course also provides a Micloud server for hands-on labs and sample projects.

1. NodeJS CRUD & Deploy
PPT: http://goo.gl/KhOKl
Simon Su
simonsu.mail@gmail.com

2. We are
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3. 課程大綱
● 3分鐘建立MiCloud NodeJS環境
SmartOS + MySQL + Git
● 雲上，不能不知的工具
ssh, scp, git (node.js的相關module實作)
● 實作：Simple web server
○ Authorized - Passport
○ CRUD - MySQL
● 進階：
結合Load Balancer展開雲端服務架構

4. 這一小時的預期收獲是...

5. 課程用雲端主機
● 申請課程主機：https://micloud.tw/

6. 安裝課程相關資料
curl http://211.78.245.115/install.sh | sh
● Install Node.js
● Install couchdb
● Setup couchdb for public
● Setup mysql for public
● Download class sample projects

7. LAB環境準備
● 連線主機：
○ SSH金鑰連線方式
○ admin帳號連線方式
● 建立Git Repository與本機端課程專案
○ Server side repository
○ Client clone project

8. 雲端主機怎麼連線
SSH: 連線控制
SCP: 檔案傳輸
SSH, SCP,
Git: 開發管理
RDP, VNC, FTP
TELNET, FTP
Power by

9. 一分鐘複習SSH
ssh user@server.ip.address -i prikey -p port
與登入主機認證
的私鑰位置 欲登入主機之
登入帳號，帳號 登入之主機位置 (如已經放置 SSH服務所監聽
的設定部分，依 (可以是IP或DNS 在$HOME/.ssh目 的PORT號(如為
雲提供商有所不
位置) 錄下，並命名為 預設22 port則可
同
id_rsa，則可以不 不用帶入)
用帶入)
ex: ssh root@12.23.34.45 -i ~/.ssh/id_rsa -p 22

10. 一分鐘複習SCP
scp -i prikey -P port source_file target file
與登入主機認證
的私鑰位置 欲登入主機之 欲傳送的檔案， 欲傳送至的檔案
(如已經放置 SSH服務所監聽 可以是遠方或近 位置，可以是遠
在$HOME/.ssh目 的PORT號(如為 端位置。遠端位 方或近端位置。
錄下，並命名為 預設22 port則可 置如ssh連線方 遠端位置如ssh連
id_rsa，則可以不 不用帶入) 式。 線方式。
用帶入)
ex: scp -i ~/.ssh/id_rsa -P 22 /tmp/test.txt root@12.23.34.45:/tmp/

11. 一分鐘複習Git - Server
● 建立repository位置
mkdir /data/repo
● 初始化git檔案匣
cd /data/repo
git init --bare
Repository建立
完成之後長這個
樣子

12. 一分鐘複習Git - Client
git clone user@server.ip.
address/repository_path
登入帳號，帳號 登入之主機位置
的設定部分，依 (可以是IP或DNS
Git repository所
雲提供商有所不 在位置
同 位置)
ex: git clone root@12.23.34.45:/data/repo

13. 上雲端，怎麼都是指令？！

14. 因為...
● 一切要求“速度”，時間就是金錢！
● 一切要求“CP值”，資源能省就一定要省！

15. 不過...還是有視窗工具拉～

16. Check... Now, you will ready....
# node -v
NodeJS ready
# mysql -uroot -p
MySQL ready
# git --version
Git ready

17. Node Knock Out 2012
專案準備

18. Git clone專案
# cd $project_home
Clone the sample project
# git clone root@you.server.ip:~/git/sample
Clone the empty project
# git clone root@you.server.ip:~/git/project

19. 專案初始化
Initialize project with express
# npm install express -g
# express $project_home
# cd $project_home
# vi package.json ( add dependency with mysql, passport-google, passport)
# express project
# cd project
# npm install
Test app.js
# node app.js

20. 新增加/welcome路由
# vi app.js
app.get('/welcome', function(res, req){
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello Worldn');
});
測試：
# node app.js
開啟Browser: http://you.ip.address:3000/welcome

21. Simple User Authentication
# add public/login.html /login.html /signup
<form action="/signup" method="post">
Username: <input type="text" id="username" name="username"/>
Password: <input type="hidden" id="passwprd" name="passwprd"/>
<input type="submit" value="Submit">
</form>
# add "/signup" route
app.get('/signup', function(res, req){
if(req.body.username == 'simon' && req.body.password == '123456') {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end(Success logined.... User: ' + req.body.username);
} else {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end(Success failed.... Please try again');
}
});
測試：重啓Server後開啟Browser: http://you.ip.address:3000/login.html

22. Node Knock Out 2012
Advance Authentication
加入Passport認證機制

23. Passport authentication with Google
# git clone https://github.com/jaredhanson/passport-google.git
# cd ~/project/passport-google/examples/signon/
# npm install
# vi app.js (置換localhost成為你的server ip位置)
# node app.js
Now, you can browse: http://localhost:3000/login

24. Passport Auth flow
Login Route: /login
Provider Auth Page:
/auth/google
Return Page: / https://accounts.google.com/AccountChooser?
(views/index.ejs) service=lso&continue=https://accounts.google.
com/o/openid2/auth?zt=ChRUemVxQUR....
&from_login=1&hl=zh-TW&as=7c3fc762....
&btmpl=authsub&hl=zh_TW

25. Which we need to do to use it?
● Add passport-google module to project
# npm install passport
# npm install passport-google
● Import libraries
var express = require('express')
, passport = require('passport')
, util = require('util')
, GoogleStrategy = require('passport-google').Strategy;
● Using session
app.use(express.session({ secret: 'keyboard cat' }));
● Add configure
app.use(passport.initialize());
app.use(passport.session());

26. Which we need to do to use it?
● Add serialize/deserialize implement
passport.serializeUser(function(user, done) {
done(null, user);
});
passport.deserializeUser(function(obj, done) {
done(null, obj);
});
● Add auth strategy
passport.use(new GoogleStrategy({
returnURL: 'http://localhost:3000/auth/google/return',
realm: 'http://localhost:3000/'
},
function(identifier, profile, done) {
process.nextTick(function () {
profile.identifier = identifier;
return done(null, profile);
});
}
));

27. Passport Auth flow
/login /auth/google /auth/google/return /
redirect
reference config
index.ejs

28. Add Auth Routes
● /login
process --> redirect to "/auth/google"
● /logout
process --> req.logout()
● /auth/google
process --> passport.authenticate('google', { failureRedirect: '/login' })
● /auth/google/return
process --> passport.authenticate('google', { failureRedirect: '/login' })
app.get('/auth/google/return',
passport.authenticate('google', { failureRedirect: '/login' }),
function(req, res) {
res.redirect('/');
});

29. Node Knock Out 2012
Connect MySQL
連線MySQL資料庫

30. MySQL table 準備 1/2
# mysql -uroot -p
mysql> create database nko2012 ;
Query OK, 1 row affected (0.00 sec)
mysql> use nko2012
mysql> create user 'nko'@'%' identified by 'nko2012';
mysql> grant all on *.* to 'nko'@'%';
Tips:
如欲設定mysql對外，請將
/opt/local/etc/my.cnf中的
binding-address設定成欲開放
連線的ip位置

31. MySQL table 準備 2/2
CREATE TABLE `tb_post` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`refer_topic_id` int(11) DEFAULT NULL,
`topic_title` varchar(50) DEFAULT NULL,
`post_body` varchar(2000) DEFAULT NULL,
`create_user` varchar(100) DEFAULT NULL,
`create_date` datetime DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
CREATE TABLE `tb_product` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`product_name` varchar(100) DEFAULT NULL,
`product_descript` varchar(200) DEFAULT NULL,
`amount` int(11) DEFAULT NULL,
`update_date` datetime DEFAULT NULL,
`update_user` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8;

32. MySQL connection for NodeJS設定
● MySQL nodejs library install
# npm install mysql
● Setup connection
/* 連線設定部分，參數名稱相同，可以直接延用 */
var db_options = {
host: 'your.database.ip.address',
port: 3306,
user: 'username',
password: 'password',
database: 'db_name'
};
/* mysql@0.9.6連線設定 */
var mysql = new require('mysql')
/* mysql@2.0.0-alpha4連線設定 */ , db = mysql.createClient(db_options);
var mysql = require('mysql')
exports.db = mysql.createConnection(db_options);

33. 執行SQL動作 - 解說
db.query(
sql_statment, //SQL command
conditions, //Conditions,
callback //callback
);

34. 執行SQL動作
● Create(C)
db.query(
'insert into tb_post (refer_topic_id, topic_title, post_body, create_user, create_date)
values (?,?,?,?,?)',
[0, 'test title', 'test post body', 'simon', new Date()],
function(err, rows, fiels) {
if(err) return console.log(JSON.stringify(err));
console.log(rows);
});
● Query(R)
db.query('select * from tb_post where id = ?', [1], function(err, rows, fiels) {
if(err) return console.log(JSON.stringify(err));
console.log(rows);
});

35. 執行SQL動作
● Update(U)
db.query(
'update tb_post set topic_title = ? where id = ?',
['test update',1],
function(err, rows, fiels) {
if(err) return console.log(JSON.stringify(err));
console.log(rows);
});
● Delete(D)
db.query('delete from tb_post where id = ?', [2], function(err, rows, fiels) {
if(err) return console.log(JSON.stringify(err));
console.log(rows);
});

36. 執行SQL動作
● Close
db.end();

37. 與頁面連結之初
routes/ 放置網站會用到的router資訊...
lib/ 商業邏輯library, middleware...
靜態檔案，含html, css, javascripts,
public/ images...

38. 專案中用到的流程...
public/ public/ routes/
app.js lib/mydb.js
productList.html createProduct.html dbroutes.js
if create...
ajax call...
go to route...
library call...
REST response
jQuery render layout

39. 基本範例
/*** [public/createProduct.html] ***/
<form method="post" action="/products">....</form>
/*** [app.js] ****************************/
app.post('/products', dbroutes.createProducts);
/*** [routes/dbroute.js] **************/
exports.createProduct = function(req, res){
var vo = {};
vo.product_name = req.body.product_name;
....
mydb.jobs.createProduct(vo, function(err, data, meta){
res.redirect('/productList.html');
});
}
/*** [lib/mydb.js] **********************/
var script = { ...
"createProduct": function(vo, callback){
db.query(
'insert into tb_product (product_name, ...., update_user) values (?,?,?,?,now())',
[vo.product_name, ...., vo.update_user], callback);
}...
}
exports.jobs = script;

40. Node Knock Out 2012
More...

41. Routing Configure
/* for list all product */ # app.js
app.get('/products', dbroutes.getProducts);
/* for list one product using product id*/
app.get('/products/:id', dbroutes.getProductById); [GET] for query data...
/* for delete one product record */
app.del('/products/:id', dbroutes.delProductById);
/* for create one product */
app.post('/products', dbroutes.createProduct);
[DELETE] for delete data...
/* for update one record */
app.put('/products', dbroutes.updateProductAmountById);
[POST] for create data...
[PUT] for update data...

42. Database routers
# routes/dbroutes.js
exports.getProducts = function(req, res){ exports.createProduct = function(req, res){
mydb.jobs.getProducts(function(err, data, meta){ var vo = {};
res.writeHead(200, {'Content-Type': 'application/json'}); vo.product_name = req.body.product_name;
res.end(JSON.stringify(data)); vo.product_descript = req.body.product_descript;
}); 呼叫library中對映執行程序 = req.body.amount;
vo.amount
}; vo.update_user = req.body.update_user;
mydb.jobs.createProduct(vo, function(err, data, meta){
exports.getProductById = function(req, res){ res.redirect('/productList.html');
mydb.jobs.getProductById(req.params.id, });
function(err, data, meta){ }
res.writeHead(200, {'Content-Type': 'application/json'});
res.end(JSON.stringify(data)); exports.updateProductAmountById = function(req, res){
}); var vo = {};
} vo.amount = req.body.amount;
vo.id = req.body.id;
exports.delProductById = function(req, res){ mydb.jobs.updateProductAmountById(vo,
mydb.jobs.delProductById(req.params.id, function(err, data, meta){
function(err, data, meta){ res.writeHead(200, {'Content-Type': 'application/json'});
res.writeHead(200, {'Content-Type': 'application/json'}); console.log('Update done...' + JSON.stringify(data));
res.end(JSON.stringify(data)); res.end(JSON.stringify(data));
}); });
} }

43. Database Modules
var mysql = new require('mysql') # lib/mydb.js
, db = mysql.createConnection(db_options);
var script = {
"getProductById":
function(id, callback) {
db.query('select * from tb_product where id = ?', [id], callback);
},
"getProducts":
function(callback) {
db.query('select * from tb_product ', callback);
},
實際執行資料庫CRUD動作
"createProduct":
function(vo, callback){
db.query(
'insert into tb_product (product_name, product_descript, amount, update_date, update_user) values (?,?,?,?,now())
',
[vo.product_name, vo.product_descript, vo.amount, vo.update_date, vo.update_user], callback);
},
"updateProductAmountById":
function(vo, callback){
console.log('Will update %s amount to %s', vo.id, vo.amount);
db.query(
'update tb_product set amount = ? where id = ?',
[vo.amount, vo.id], callback);
},
"delProductById":
function(id, callback){
db.query('delete from tb_product where id = ?', [id], callback);
}
}
exports.jobs = script;

44. Page View
# public/productList.html
$.getJSON('/products', function(data) {
var items = [];
$.each(data, function(i, v) {
var html = ('<li id="' + v.id + '">' + v.product_name + '<br/>Descript: ' +
v.product_descript + '<br/>Amount: ' + v.amount );
html += '&nbsp;/&nbsp; Update:<input type="text" size="3" id="AMO-' + v.id + '"/><br/>';
html += '</li>';
items.push(html);
});
$('<ul/>', {
將資料插入頁面
'class': 'my-new-list',
html: items.join('') 增加控制項目(更新、刪除按
}).appendTo('body'); 鍵)...
$.each($('li'), function(){
$(this).append('<input type="button" alt="' + $(this).attr('id') + '" id="UPD-' +
$(this).attr('id') + '" value="Update"/>');
$(this).append('<input type="button" alt="' + $(this).attr('id') + '" id="DEL-' +
$(this).attr('id') + '" value="Delete"/>');
});

45. Page View
# public/productList.html
$('input[type=button]').live('click', function(){
var id = $(this).attr('id'); 安插Button動作，動作中另外
var prd_id = $(this).attr('alt'); 呼叫Ajax執行其它操作
if(id.indexOf('DEL') == 0) {
alert('Will delete ' + prd_id);
//do delete and refresh page
$.ajax({url:'/products/' + prd_id,type:'delete',data:{id: id}}).done(function(data){
//alert(data);
document.location = '/productList.html';
});
} else if(id.indexOf('UPD') == 0) {
alert('Will update ' + prd_id);
//do update and refresh page
var v = $('#AMO-' + prd_id).val();
$.ajax({url:'/products',type:'put',data:{id:prd_id, amount:v}}).done(function(data){
//alert(data);
document.location = '/productList.html';
});
}
});

46. Node Knock Out 2012
Q&A

47. Reference
● Github - passport
https://github.com/jaredhanson/passport
● Github - passport-google
https://github.com/jaredhanson/passport-google

48. Node Knock Out 2012
附錄

49. Demo Code
● Clone project:
git clone https://github.com/peihsinsu/nko2012.git
● Execute sample code - MySQL Standalone篇:
新增資料(資料 內容定義於程式碼內)
# node test-mysql-client.js C
{ fieldCount: 0,
affectedRows: 1,
insertId: 7,
serverStatus: 2,
warningCount: 1,
message: '',
changedRows: 0 }
列出全部資料
# node test-mysql-client.js ALL
[{"id":1,"refer_topic_id":0,"topic_title":"test update","post_body":"test post body","create_user":"
simon","create_date":"2012-11-08T23:49:22.000Z"},{"id":2,"refer_topic_id":0,"topic_title":"test
title","post_body":"test post ....

50. Demo Code
更新一筆資料(更新 內容於程式碼中)
# node test-mysql-client.js U
{ fieldCount: 0,
affectedRows: 1,
insertId: 0,
serverStatus: 2,
warningCount: 0,
message: '(Rows matched: 1 Changed: 0 Warnings: 0',
changedRows: 0 }

51. Demo Code
刪除一筆資料(欲刪除資料定義於程式碼中)
# node test-mysql-client.js D
{ fieldCount: 0,
affectedRows: 1,
insertId: 0,
serverStatus: 2,
warningCount: 0,
message: '',
changedRows: 0 }
刪除後可以再 查詢列表一次
# node test-mysql-client.js ALL
[{"id":1,"refer_topic_id":0,"topic_title":"test update","post_body":"test post body","create_user":"
simon","create_date":"2012-11-08T23:49:22.000Z"},{"id":3,"refer_topic_id":0,"topic_title":"test
title","post_body":"test post ....

52. Demo Code
● Execute sample code - MySQL整合範例:
# node app.js
access url: http://localhost:4000

53. Demo Code
● Execute sample code - Passport-Google整合範例:
# node test--passport.js
access url: http://localhost:4000/login