express/examples/search/index.js

// first:
// $ npm install redis
// $ redis-server

/**
 * Module dependencies.
 */

var express = require('../..')
  , redis = require('redis')
  , db = redis.createClient();

// npm install redis

var app = express();

app.set('view engine', 'jade');
app.set('views', __dirname);

// populate search

db.sadd('ferret', 'tobi');
db.sadd('ferret', 'loki');
db.sadd('ferret', 'jane');
db.sadd('cat', 'manny');
db.sadd('cat', 'luna');

/**
 * GET the search page.
 */

app.get('/', function(req, res){
  res.render('search');
});

/**
 * GET search for :query.
 */

app.get('/search/:query?', function(req, res){
  var query = req.params.query;
  db.smembers(query, function(err, vals){
    if (err) return res.send(500);
    res.send(vals);
  });
});

/**
 * GET client javascript. Here we use sendfile()
 * because serving __dirname with the static() middleware
 * would also mean serving our server "index.js" and the "search.jade"
 * template.
 */

app.get('/client.js', function(req, res){
  res.sendfile(__dirname + '/client.js');
});

app.listen(3000);
console.log('app listening on port 3000');