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NODE.JS
4์žฅ. npm์„ ์ด์šฉํ•œ ์˜์กด์„ฑ ํ™•์žฅ ๋ชจ๋“ˆ
๊ด€๋ฆฌ
5์žฅ. ํŠธ์œ„ํ„ฐ ๋ฐฑ์—… ์–ดํ”Œ๋ฆฌ์ผ€์ด์…˜ ์˜ˆ์ œ

๊ฒ€์ƒ‰๊ด‘๊ณ ์„œ๋น„์Šค๊ฐœ๋ฐœ2ํŒ€ ํ—ˆ์›์ง„
4.1 npm์†Œ๊ฐœ
npm : ๋…ธ๋“œ๋ฅผ ์œ„ํ•œ ํŒจํ‚ค์ง€ ๋งค๋‹ˆ์ €, ํ™•์žฅ ๋ชจ๋“ˆ์˜ ๊ด€๋ฆฌ๋ฅผ ์‰ฝ๊ฒŒ ํ•˜๊ฒŒ ๋„์™€์ฃผ๋Š” ๊ฒƒ
(MAVEN ๊ณผ ๊ฐ™์€ ์˜์กด์„ฑ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ ๊ด€๋ฆฌ ๊ธฐ๋Šฅ๊ณผ ๋น„์Šทํ•จ)

-์ค‘์•™ ์ €์žฅ์†Œ : ๋ชจ๋“  ์‚ฌ์šฉ์ž๊ฐ€ ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ๋Š” ๊ณณ
-package.json : ํ”„๋กœ์ ํŠธ ๊ด€๋ จ ์ •๋ณด ์ €์žฅ, ์˜์กด์„  ํ™•์žฅ ๋ชจ๋“ˆ ์ •๋ณด๋„ ๋‹ด๊ฒจ ์žˆ์–ด ๊ณต์œ 
๊ฐ ๊ฐœ๋ฐœ์ž๊ฐ€ ์ž์‹ ์˜ ๋กœ์ปฌ ํ™˜๊ฒฝ์—์„œ ํ•„์š”ํ•œ ์˜์กด ๋ชจ๋“ˆ์„ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ์Œ
4.2 npm ์„ค์น˜
๋…ธ๋“œ 0.6.3๋ถ€ํ„ฐ npm์ด ๋…ธ๋“œ์— ํฌํ•จ๋˜์–ด ํ•จ๊ป˜ ์„ค์น˜๋œ๋‹ค.
๋‹ค์Œ ๋ช…๋ น์–ด๋ฅผ ํ†ตํ•ด ์„ค์น˜ ์—ฌ๋ถ€๋ฅผ ํ™•์ธ ํ•  ์ˆ˜ ์žˆ๋‹ค.
$ npm โ€“v
1.1.0-beta-4
4.3 npm์„ ์ด์šฉํ•œ ํ™•์žฅ ๋ชจ๋“ˆ
์„ค์น˜ /usr/local/lib๊ณผ ๊ฐ™์€ node์„ค์น˜ ๊ฒฝ๋กœ์—
๊ธ€๋กœ๋ฒŒ ์„ค์น˜ : ์ปค๋งจ๋“œ ์ฐฝ์—์„œ ์ง์ ‘ ์“ฐ๋Š” ๊ฒฝ์šฐ.
node_modules๋””๋ ‰ํ† ๋ฆฌ ์•„๋ž˜์— ์„ค์น˜
๋กœ์ปฌ ์„ค์น˜ : require(โ€˜๋ชจ๋“ˆ๋ช…โ€™) ์œผ๋กœ ์ ‘๊ทผํ•˜๋Š” ๊ฒฝ์šฐ. ํ˜„์žฌ ์œ„์น˜ ๊ธฐ์ค€ node_modules
๋””๋ ‰ํ† ๋ฆฌ์— ์„ค์น˜
๊ธ€๋กœ๋ฒŒ ์„ค์น˜
[nodemon : ์ปค๋งจ๋“œ๋ผ์ธ์—์„œ ์œ ํ‹ธ๋ฆฌํ‹ฐ ๋„๊ตฌ ์ฒ˜๋Ÿผ ์‚ฌ์šฉํ•˜๋Š” ๋ชจ๋“ˆ]
$ npm install nodemon โ€“g
$ npm list โ€“g
๋กœ์ปฌ ์„ค์น˜
[ request ๋ชจ๋“ˆ]
$ npm install request

npm [๋ช…๋ น์–ด] [ํƒ€๊ฒŸ ๋ชจ๋“ˆ์ด๋ฆ„] [์˜ต์…˜]
http://search.npmjs.org
4.5 ์„ค์น˜๋œ ํ™•์žฅ ๋ชจ๋“ˆ ๊ด€๋ฆฌ
๋ชจ๋“ˆ ์—…๋ฐ์ดํŠธ : $ npm update ๋ชจ๋“ˆ๋ช…
ํŠน์ • ๋ฒ„์ „ ์„ค์น˜ : $ npm install ๋ชจ๋“ˆ๋ช…@๋ฒ„์ „
๋ฒ„์ „ ํ™•์ธ : $ npm info ๋ชจ๋“ˆ๋ช…
๋ชจ๋“ˆ ์‚ญ์ œ : $ npm uninstall ๋ชจ๋“ˆ๋ช…
4.6 package.json์„ ์ด์šฉํ•œ ํ”„๋กœ์ ํŠธ ๊ด€๋ฆฌ
{
โ€œnameโ€ : โ€œapplication-nameโ€
, โ€œversionโ€ : โ€œ0.0.1โ€
, โ€œprivateโ€ : true
, โ€œdependenciesโ€ : {
โ€œexpressโ€ : โ€œ2.4.6โ€
, โ€œjadeโ€ : โ€œ>= 0.0.1โ€
}
}

name, version, description,
keywords, homepage,
author, contributors,
repository, scripts, config,
private, dependencies ๋“ฑ

package.json ์ž๋™ ์ƒ์„ฑ
$ npm init : ๊ธฐ๋ณธ์ ์ธ package.json์„ ๋งŒ๋“ค ์ˆ˜ ์žˆ์Œ
$ npm install ๋ชจ๋“ˆ๋ช… โ€“save : dependenciesํ•„๋“œ์— ์ž๋™์œผ๋กœ ๋ชจ๋“ˆ์— ๋Œ€ํ•œ ์ •๋ณด๋ฅผ ์ถ”๊ฐ€
5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API
์‚ฌ์šฉ
ํŠธ์œ„ํ„ฐ์˜ Open API : http://search.twitter.com/search.json?q=test&result_type=recent&
rpp=100&seince_id=1
{ completed_in : 0.222,
max_id : 1245919293949919192390,
max_id_str : โ€˜124518862616213312โ€™,
next_page : โ€˜?page=2&max_id=1245188626151213312&q=text&rpp=100โ€™,
page : 1,
query : โ€˜textโ€™,
refresh_url : โ€˜?since_id = 124518852515213312&q=textโ€™,
results:
[ { created_at: โ€˜Thu, 13 Oct 2011 16:16:22 +0000โ€™,
from_user: โ€˜twitpiclvrโ€™,
โ€ฆ
}],
results_per_page : 100,
since_id : 1,
since_id_str :โ€™1โ€™}
5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API
์‚ฌ์šฉ
REST ํด๋ผ์ด์–ธํŠธ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ restler ์„ค์น˜
$ npm install restler
get(url, options)
post(url, options)

๏ƒจ get ๊ณผ post๋กœ ์š”์ฒญ์„ ๋ณด๋‚ด๊ณ , ์ฝœ๋ฐฑ์„ ํ†ตํ•ด ์‘๋‹ต์„ ๋ฐ›๊ณ  restler๊ฐ€ content-type์— ๋”ฐ๋ผ
์‘๋‹ต์„ ์ž๋™์œผ๋กœ JSON์ด๋‚˜ XML๋กœ ํŒŒ์‹ฑํ•ด ์ค€๋‹ค.
5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API
์‚ฌ์šฉ
var rest=require('restler')
, fs = require('fs')
, schedule = require('node-schedule');
var Tweet = {
sinceId: '1'
, isOpened: false
, getTweets: function(search, callback){
search = encodeURIComponent(search);
fs.readFile('./maxid.txt', function(err, maxId){
if(err){Tweet.sinceId=1;}
else{ Tweet.sinceId=maxId;}
โ€ฆ
5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API
์‚ฌ์šฉ
rest.get(
'http://search.twitter.com/search.json?q=' + search +
'&result_type=recent' + '&rpp=100' +
'&since_id=' + this.sinceId
).on('complete', function(data){

var text="";
data.results.forEach(function(elem, index, array){
text += elem.from_user+':'+
elem.text + ' at' + elem.created_at +'n';
});
if(!Tweet.isOpened){
fs.open('./tweets.txt','a',0666,function(err,fd){
if(err){throw err;}
โ€ฆ
5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API
์‚ฌ์šฉ
isOpened=true;
var buffer = new Buffer(text);
fs.write(fd, buffer, 0, buffer.length, null
,function(err){
fs.close(fd,function(){
tweet.isOpened = false;
fs.writeFile('./maxid.txt'
, data.max_id.toString()
,function(err){}
);
});

});
});
}
});
});
}
}
โ€ฆ
5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API
์‚ฌ์šฉ
var rule = new schedule.RecurrenceRule();
rule.hour = new schedule.Range(0,23);
rule.minute = [0,5, 10,15, 20,25, 30,35, 40,45, 50];
var j = schedule.scheduleJob(rule, function(){
Tweet.getTweets('#nodejs');
console.log('Backup is completed at ' + new Date());
});

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Nodejs4

  • 1. NODE.JS 4์žฅ. npm์„ ์ด์šฉํ•œ ์˜์กด์„ฑ ํ™•์žฅ ๋ชจ๋“ˆ ๊ด€๋ฆฌ 5์žฅ. ํŠธ์œ„ํ„ฐ ๋ฐฑ์—… ์–ดํ”Œ๋ฆฌ์ผ€์ด์…˜ ์˜ˆ์ œ ๊ฒ€์ƒ‰๊ด‘๊ณ ์„œ๋น„์Šค๊ฐœ๋ฐœ2ํŒ€ ํ—ˆ์›์ง„
  • 2. 4.1 npm์†Œ๊ฐœ npm : ๋…ธ๋“œ๋ฅผ ์œ„ํ•œ ํŒจํ‚ค์ง€ ๋งค๋‹ˆ์ €, ํ™•์žฅ ๋ชจ๋“ˆ์˜ ๊ด€๋ฆฌ๋ฅผ ์‰ฝ๊ฒŒ ํ•˜๊ฒŒ ๋„์™€์ฃผ๋Š” ๊ฒƒ (MAVEN ๊ณผ ๊ฐ™์€ ์˜์กด์„ฑ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ ๊ด€๋ฆฌ ๊ธฐ๋Šฅ๊ณผ ๋น„์Šทํ•จ) -์ค‘์•™ ์ €์žฅ์†Œ : ๋ชจ๋“  ์‚ฌ์šฉ์ž๊ฐ€ ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ๋Š” ๊ณณ -package.json : ํ”„๋กœ์ ํŠธ ๊ด€๋ จ ์ •๋ณด ์ €์žฅ, ์˜์กด์„  ํ™•์žฅ ๋ชจ๋“ˆ ์ •๋ณด๋„ ๋‹ด๊ฒจ ์žˆ์–ด ๊ณต์œ  ๊ฐ ๊ฐœ๋ฐœ์ž๊ฐ€ ์ž์‹ ์˜ ๋กœ์ปฌ ํ™˜๊ฒฝ์—์„œ ํ•„์š”ํ•œ ์˜์กด ๋ชจ๋“ˆ์„ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ์Œ
  • 3. 4.2 npm ์„ค์น˜ ๋…ธ๋“œ 0.6.3๋ถ€ํ„ฐ npm์ด ๋…ธ๋“œ์— ํฌํ•จ๋˜์–ด ํ•จ๊ป˜ ์„ค์น˜๋œ๋‹ค. ๋‹ค์Œ ๋ช…๋ น์–ด๋ฅผ ํ†ตํ•ด ์„ค์น˜ ์—ฌ๋ถ€๋ฅผ ํ™•์ธ ํ•  ์ˆ˜ ์žˆ๋‹ค. $ npm โ€“v 1.1.0-beta-4
  • 4. 4.3 npm์„ ์ด์šฉํ•œ ํ™•์žฅ ๋ชจ๋“ˆ ์„ค์น˜ /usr/local/lib๊ณผ ๊ฐ™์€ node์„ค์น˜ ๊ฒฝ๋กœ์— ๊ธ€๋กœ๋ฒŒ ์„ค์น˜ : ์ปค๋งจ๋“œ ์ฐฝ์—์„œ ์ง์ ‘ ์“ฐ๋Š” ๊ฒฝ์šฐ. node_modules๋””๋ ‰ํ† ๋ฆฌ ์•„๋ž˜์— ์„ค์น˜ ๋กœ์ปฌ ์„ค์น˜ : require(โ€˜๋ชจ๋“ˆ๋ช…โ€™) ์œผ๋กœ ์ ‘๊ทผํ•˜๋Š” ๊ฒฝ์šฐ. ํ˜„์žฌ ์œ„์น˜ ๊ธฐ์ค€ node_modules ๋””๋ ‰ํ† ๋ฆฌ์— ์„ค์น˜ ๊ธ€๋กœ๋ฒŒ ์„ค์น˜ [nodemon : ์ปค๋งจ๋“œ๋ผ์ธ์—์„œ ์œ ํ‹ธ๋ฆฌํ‹ฐ ๋„๊ตฌ ์ฒ˜๋Ÿผ ์‚ฌ์šฉํ•˜๋Š” ๋ชจ๋“ˆ] $ npm install nodemon โ€“g $ npm list โ€“g ๋กœ์ปฌ ์„ค์น˜ [ request ๋ชจ๋“ˆ] $ npm install request npm [๋ช…๋ น์–ด] [ํƒ€๊ฒŸ ๋ชจ๋“ˆ์ด๋ฆ„] [์˜ต์…˜] http://search.npmjs.org
  • 5. 4.5 ์„ค์น˜๋œ ํ™•์žฅ ๋ชจ๋“ˆ ๊ด€๋ฆฌ ๋ชจ๋“ˆ ์—…๋ฐ์ดํŠธ : $ npm update ๋ชจ๋“ˆ๋ช… ํŠน์ • ๋ฒ„์ „ ์„ค์น˜ : $ npm install ๋ชจ๋“ˆ๋ช…@๋ฒ„์ „ ๋ฒ„์ „ ํ™•์ธ : $ npm info ๋ชจ๋“ˆ๋ช… ๋ชจ๋“ˆ ์‚ญ์ œ : $ npm uninstall ๋ชจ๋“ˆ๋ช…
  • 6. 4.6 package.json์„ ์ด์šฉํ•œ ํ”„๋กœ์ ํŠธ ๊ด€๋ฆฌ { โ€œnameโ€ : โ€œapplication-nameโ€ , โ€œversionโ€ : โ€œ0.0.1โ€ , โ€œprivateโ€ : true , โ€œdependenciesโ€ : { โ€œexpressโ€ : โ€œ2.4.6โ€ , โ€œjadeโ€ : โ€œ>= 0.0.1โ€ } } name, version, description, keywords, homepage, author, contributors, repository, scripts, config, private, dependencies ๋“ฑ package.json ์ž๋™ ์ƒ์„ฑ $ npm init : ๊ธฐ๋ณธ์ ์ธ package.json์„ ๋งŒ๋“ค ์ˆ˜ ์žˆ์Œ $ npm install ๋ชจ๋“ˆ๋ช… โ€“save : dependenciesํ•„๋“œ์— ์ž๋™์œผ๋กœ ๋ชจ๋“ˆ์— ๋Œ€ํ•œ ์ •๋ณด๋ฅผ ์ถ”๊ฐ€
  • 7. 5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API ์‚ฌ์šฉ ํŠธ์œ„ํ„ฐ์˜ Open API : http://search.twitter.com/search.json?q=test&result_type=recent& rpp=100&seince_id=1 { completed_in : 0.222, max_id : 1245919293949919192390, max_id_str : โ€˜124518862616213312โ€™, next_page : โ€˜?page=2&max_id=1245188626151213312&q=text&rpp=100โ€™, page : 1, query : โ€˜textโ€™, refresh_url : โ€˜?since_id = 124518852515213312&q=textโ€™, results: [ { created_at: โ€˜Thu, 13 Oct 2011 16:16:22 +0000โ€™, from_user: โ€˜twitpiclvrโ€™, โ€ฆ }], results_per_page : 100, since_id : 1, since_id_str :โ€™1โ€™}
  • 8. 5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API ์‚ฌ์šฉ REST ํด๋ผ์ด์–ธํŠธ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ restler ์„ค์น˜ $ npm install restler get(url, options) post(url, options) ๏ƒจ get ๊ณผ post๋กœ ์š”์ฒญ์„ ๋ณด๋‚ด๊ณ , ์ฝœ๋ฐฑ์„ ํ†ตํ•ด ์‘๋‹ต์„ ๋ฐ›๊ณ  restler๊ฐ€ content-type์— ๋”ฐ๋ผ ์‘๋‹ต์„ ์ž๋™์œผ๋กœ JSON์ด๋‚˜ XML๋กœ ํŒŒ์‹ฑํ•ด ์ค€๋‹ค.
  • 9. 5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API ์‚ฌ์šฉ var rest=require('restler') , fs = require('fs') , schedule = require('node-schedule'); var Tweet = { sinceId: '1' , isOpened: false , getTweets: function(search, callback){ search = encodeURIComponent(search); fs.readFile('./maxid.txt', function(err, maxId){ if(err){Tweet.sinceId=1;} else{ Tweet.sinceId=maxId;} โ€ฆ
  • 10. 5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API ์‚ฌ์šฉ rest.get( 'http://search.twitter.com/search.json?q=' + search + '&result_type=recent' + '&rpp=100' + '&since_id=' + this.sinceId ).on('complete', function(data){ var text=""; data.results.forEach(function(elem, index, array){ text += elem.from_user+':'+ elem.text + ' at' + elem.created_at +'n'; }); if(!Tweet.isOpened){ fs.open('./tweets.txt','a',0666,function(err,fd){ if(err){throw err;} โ€ฆ
  • 11. 5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API ์‚ฌ์šฉ isOpened=true; var buffer = new Buffer(text); fs.write(fd, buffer, 0, buffer.length, null ,function(err){ fs.close(fd,function(){ tweet.isOpened = false; fs.writeFile('./maxid.txt' , data.max_id.toString() ,function(err){} ); }); }); }); } }); }); } } โ€ฆ
  • 12. 5.1 restler๋ฅผ ์ด์šฉํ•œ ํŠธ์œ„ํ„ฐ REST API ์‚ฌ์šฉ var rule = new schedule.RecurrenceRule(); rule.hour = new schedule.Range(0,23); rule.minute = [0,5, 10,15, 20,25, 30,35, 40,45, 50]; var j = schedule.scheduleJob(rule, function(){ Tweet.getTweets('#nodejs'); console.log('Backup is completed at ' + new Date()); });