Node.js express and mongodb

sudo npm install express -g 


  Development  cd Node_js_Express_MongoDB 
➜  Node_js_Express_MongoDB  ls
➜  Node_js_Express_MongoDB  express -c stylus


OR

express -c stylus YOUR_APP


   create : .
   create : ./package.json
   create : ./app.js
   create : ./public
   create : ./public/javascripts
   create : ./public/images
   create : ./public/stylesheets
   create : ./public/stylesheets/style.styl
   create : ./routes
   create : ./routes/index.js
   create : ./routes/user.js
   create : ./views
   create : ./views/layout.jade
   create : ./views/index.jade

   install dependencies:
     $ cd . && npm install

   run the app:
     $ node app

➜  Node_js_Express_MongoDB  npm install -d

jade@0.31.1 node_modules/jade

├── character-parser@1.0.2

├── mkdirp@0.3.5

├── commander@1.1.1 (keypress@0.1.0)

├── with@1.0.4 (lexical-scope@0.0.12)

├── monocle@0.1.48 (readdirp@0.2.4)

└── transformers@2.0.1 (promise@2.0.0, css@1.0.8, uglify-js@2.2.5)

Check id mondgo is running 

http://www.mkyong.com/mongodb/how-to-install-mongodb-on-mac-os-x/

Or install it here 

http://www.mkyong.com/mongodb/how-to-install-mongodb-on-mac-os-x/

Node_js_Express_MongoDB  ps -ef | grep mongo

    0    62     1   0 11May13 ??        67:51.38 /usr/local/mongodb/bin/mongod run --config /usr/local/mongodb/mongod.conf

    0 74879     1   0  7:21am ??         0:04.45 /usr/local/mongodb/bin/mongod

  501 75707 63231   0  7:36am ttys000    0:00.00 grep mongo

run the app 

node app.js

Express

Welcome to Express

:) 

require mongo 

in package.json 

{
  "name": "application-name",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node app.js"
  },
  "dependencies": {
    "express": "3.2.5",
    "jade": "*",
    "stylus": "*",
"mongodb": ">= 0.9.6-7"
  }
}

package.json  is like GEM file in rails

UPDATE 

npm install -d

Install nodemon
Nodemon will reload your application each time it changes so you don't need to restart it.
npm install -g nodemon

http://blog.ijasoneverett.com/2013/03/a-sample-app-with-node-js-express-and-mongodb-part-1/


http://expressjs.com/guide.html





UPDATE:

update the package.json because heroku need a version


{
  "name": "application-name",
  "version": "0.0.1",
"engines": {
       "node": "0.10.x",
       "npm":  "1.2.x"
   },
  "private": true,
  "scripts": {
    "start": "node app.js"
  },
  "dependencies": {
    "express": "3.2.5",
    "jade": "*",
    "stylus": "*",
"mongodb": ">= 0.9.6-7"
  }
}






Push it on heroku

➜  Node_js_Express_MongoDB git:(master) ✗ heroku create                        
Creating nameless-sea-6255... done, stack is cedar
http://nameless-sea-6255.herokuapp.com/ | git@heroku.com:nameless-sea-6255.git
Git remote heroku added
➜  Node_js_Express_MongoDB git:(master) ✗ git push heroku 



add mongo to  heroku

heroku addons:add mongolab

➜  Node_js_Express_MongoDB git:(master)  heroku addons:add mongolab
----> Adding mongolab to nameless-sea-6255... done, v6 (free)

      Welcome to MongoLab.  Your new database is ready for use.  Please consult the MongoLab Add-on Admin UI for more information and useful management t


Create a Procfile

and add

web: node app.js
this tells heroku what to run when it deployed  


➜  Node_js_Express_MongoDB git:(master) heroku ps  
Process   State      Command
--------  ---------  -------
run.9003  up for 9m  node    
➜  Node_js_Express_MongoDB git:(master) heroku ps:scale web=1
Scaling web processes... done, now running 1
➜  Node_js_Express_MongoDB git:(master) heroku config:add NODE_ENV=production
Adding config vars and restarting app... done, v8
  NODE_ENV => production


Change on app.js


var port = process.env.PORT || 3000;

app.listen(port);

https://devcenter.heroku.com/articles/nodejs-mongoose


Heroku connection string

https://github.com/p15martin/BlogMongoDbNativeDriver/blob/master/web.js


heroku config | grep MONGOLAB_URI