Single Page App components

api_module.js

var cfg = require('../config').Config,
    qs = require('querystring'),
    request = require('request');

request = request.defaults({jar: true})

exports.awesome = function(req, res){

  headers = {};

  request.get({ 'url': cfg.transportRequire + '://localhost:' + cfg.apiPort + '/awesome',
                headers: headers} , function (error, response, body) {
    if (!error && response.statusCode == 200) {
        res.set('Content-Type', 'application/json; charset=utf-8');
        res.send(body);
    } else {
      res.send(response.statusCode, body);
    }
  });
};

express_app.js

/**
 * Module dependencies.
 */

var express = require('express')
  , cons = require('consolidate')
  , swig = require('swig')
  , routes = require('./routes')
  , partials = require('./routes/partials')
  , http = require('http')
  , path = require('path');

var app = express();

swig.init({
    root: __dirname + '/views',
    allowErrors: true // allows errors to be thrown and caught by express instead of suppressed by Swig
});

app.configure(function(){
  app.set('port', process.env.PORT || 6000);
  app.set('views', __dirname + '/views');
  app.engine('.html', cons.swig);
  app.set('view engine', 'html');
  app.set('jsonp callback name', 'JSON_CALLBACK');
  app.use(express.favicon());
  app.use(express.logger('dev'));

  app.use(express.bodyParser());
  app.use(express.cookieParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
});

app.configure('development', function(){
  app.use(express.errorHandler());
});

app.get('/', routes.index);
app.get('/partials/:filename', partials.partials);

//apis
app.get('/api/v1/awesome', api_module.awesome);

http.createServer(app).listen(app.get('port'), '127.0.0.1', function(){
  console.log("Express server listening on port " + app.get('port'));
});

nginx.conf

user www-data;
worker_processes 4;
pid /run/nginx.pid;

events {
        worker_connections 768;
}

http {

        ##
        # Basic Settings
        ##

        proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=one:8m max_size=3000m inactive=600m;
        proxy_temp_path /var/tmp;
        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;

        server_names_hash_bucket_size 128;
        # server_name_in_redirect off;

        include /usr/local/nginx/conf/mime.types;
        default_type application/octet-stream;

        #Remember this setting for 365 days, HSTS
        add_header Strict-Transport-Security max-age=31536000;

        #prevent any page from being shown in an iframe
        add_header X-Frame-Options DENY;

        #for ie
        add_header X-XSS-Protection 1:mode=block;

        #prevent ie from mime-sniffing
        add_header  X-Content-Type-Options nosniff;

        ##
        # Logging Settings
        ##

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        ##
        # Gzip Settings
        ##
        gzip on;
        gzip_disable "msie6";
        gzip_vary on;
        gzip_proxied any;
        gzip_comp_level 6;
        gzip_buffers 16 8k;
        gzip_http_version 1.1;

        #text/html is always compressed by default
        gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

        #google recommendation for min length below which not to gzip
        #default nginx value is 20
        gzip_min_length 150;

        ##
        # nginx-naxsi config
        ##
        # Uncomment it if you installed nginx-naxsi
        ##

        #include /etc/nginx/naxsi_core.rules;

        ##
        # nginx-passenger config
        ##
        # Uncomment it if you installed nginx-passenger
        ##

        #passenger_root /usr;
        #passenger_ruby /usr/bin/ruby;

        server {
          listen 80;
          return 301 https://$host$request_uri;
      }

      server {
          listen 443 ssl spdy;

          #ssl on;
          ssl_certificate /etc/ssl/packageindex.crt;
          ssl_certificate_key /etc/ssl/packageindex.key;

          server_name packageindex.com www.packageindex.com;

          #let nginx serve all static media
          location ~ ^/(images/|img/|javascript/|javascripts/|js/|css/|stylesheets/|flash/|media/|static/|robots.txt|humans.txt|favicon.ico) {
            root /home/pindex/packageindex/web/public;
            access_log off;
            expires max;
          }

          location /status {
             stub_status on;
             access_log off;
             allow 127.0.0.1;
             deny all;
        }

          location / {
            proxy_redirect off;
            proxy_set_header   X-Real-IP            $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Proto $scheme;
            proxy_set_header   Host                   $http_host;
            proxy_set_header   X-NginX-Proxy    true;
            proxy_set_header   Connection "";
            proxy_http_version 1.1;
            proxy_cache one;
            proxy_cache_key sfs$request_uri$scheme;
            #send to varnish
            proxy_pass http://127.0.0.1:6081;
          }

}

}

varnish.vcl

backend default {
    .host = "127.0.0.1";
    .port = "<some port number>";
}

sub vcl_fetch { 
    if (req.url ~ "^/stylesheets/") {
        set beresp.ttl = 1d;
    }

    if (req.url ~ "^/javascripts/") {
        set beresp.ttl = 1d;
    }

}