http_server_restfuljson.js

var http = require('http');
var port = 1337;
var obj = {};
var server = http.createServer(function(req, res){
  var remoteAddress = req.connection.remoteAddress;
  var header = {'Connection' : 'close', 'Content-Length' : 0};
  var key = req.url;
  switch (req.method){
    case 'POST':
      if(obj[key]){
        res.writeHead(403, header);
        res.end();
      }else{
        var data = '';
        req.on('data', function(chunk){
          data += chunk;
        });
        req.on('end', function(){
          try{
            obj[key] = JSON.parse(data);
            res.writeHead(200, header);
            console.log('POST', key, obj[key], ' from ' + remoteAddress);
          }catch(e){
            res.writeHead(400, e.message, header);
          }
          res.end();
        });
      }
      break;

    case 'GET':
      if(obj[key]){
        var json = JSON.stringify(obj[key]);
        res.writeHead(200, {
          'Content-Length' : Buffer.byteLength(json),
          'Content-Type' : 'application/json',
          'Connection' : 'close'
        });
        res.write(json);
        console.log('GET', key, ' from ' + remoteAddress);
      }else{
        res.writeHead(404, header);
      }
      res.end();
      break;

    case 'PUT':
      if(obj[key]){
        var data = '';
        req.on('data', function(chunk){
          data += chunk;
        });
        req.on('end', function(){
          try{
            obj[key] = JSON.parse(data);
            res.writeHead(200, header);
            console.log('PUT', key, obj[key], ' from ' + remoteAddress);
          }catch(e){
            res.writeHead(400, e.message, header);
          }
          res.end();
        });
      }else{
        res.writeHead(403, header);
        res.end();
      }
      break;

    case 'DELETE':
      if(obj[key]){
        delete obj[key];
        res.writeHead(200, header);
        console.log('DELETE', key, ' from ' + remoteAddress);
      }else{
        res.writeHead(404, header);
      }
      res.end();
      break;

  }
});

server.on('error', function(e){
  console.log('Server Error', e.message);
});

server.on('clientError', function(e){
  console.log('Client Error', e.message);
});

server.listen(port, function(){
  console.log('listening on ' + port);
});