server.js

var express = require('express');
var compression = require('compression');
var bodyParser = require('body-parser');
var fs = require('fs');
var app = express();

var encoding = 'utf8';
var storeDir = __dirname + '/store/';

if (!fs.existsSync(storeDir)){
  console.log("could not find store directory at %s", storeDir);
  process.exit(1);
}

app.use(compression());
app.use(bodyParser.json());
app.use(express.static(__dirname + '/public'));

app.get('/v1/store', function(req, res, next){
  fs.readdir(storeDir, function(err, files){
    if (err) {
      return next(err);
    }
    var boards = [];
    files.forEach(function(file){
      var json = JSON.parse(fs.readFileSync(storeDir + file, encoding));
      boards.push({
        id: file.replace('.json', ''),
        title: json.title
      });
    });
    // send response
    res.json({
      dashboards: boards
    });
  });
});

app.get('/v1/store/:id', function(req, res, next){
  fs.readFile(storeDir + req.params.id + '.json', encoding, function(err, data){
    if (err) {
      return next(err);
    }
    res.writeHead(200, {'Content-Type': 'application/json'});
    res.end(data);
  });
});

app.post('/v1/store/:id', function(req, res, next){
  fs.writeFile(
    storeDir + req.params.id + '.json',
    JSON.stringify(req.body, undefined, 2),
    function(err){
      if (err) {
        return next(err);
      }
      res.status(204).end();
    }
  );
});

app.delete('/v1/store/:id', function(req, res, next){
  fs.unlink(storeDir + req.params.id + '.json', function(err){
    if (err) {
      return next(err);
    }
    res.status(204).end();
  });
});

app.use(function(err, req, res, next) {
  if (err.errno === 34){
    console.log("could not find file for url %s", req.url);
    res.status(404).end();
  } else {
    console.log("unknown error on url %s: ", req.url, err);
    res.status(500).end();
  }
});

var server = app.listen(3000, function() {
    console.log('Listening on port %d', server.address().port);
});