text: var log4js = require('log4js');
  var apiLogger = log4js.getLogger("API");
  var clientLogger = log4js.getLogger("client");
  var formidable = require('formidable');
  var apiHandler = require('../../handler/APIHandler');
  
  //This is for making an api call, collecting all post information and passing it to the apiHandler
  var apiCaller = function(req, res, fields) {
    res.header("Content-Type", "application/json; charset=utf-8");
  
    apiLogger.info("REQUEST, v"+ req.params.version + ":" + req.params.func + ", " + JSON.stringify(fields));
  
    //wrap the send function so we can log the response
    //note: res._send seems to be already in use, so better use a "unique" name
    res._____send = res.send;
    res.send = function (response) {
      response = JSON.stringify(response);
      apiLogger.info("RESPONSE, " + req.params.func + ", " + response);
  
      //is this a jsonp call, if yes, add the function call
      if(req.query.jsonp)
        response = req.query.jsonp + "(" + response + ")";
  
      res._____send(response);
    }
  
    //call the api handler
    apiHandler.handle(req.params.version, req.params.func, fields, req, res);
  }
  
  exports.apiCaller = apiCaller;
  
  exports.expressCreateServer = function (hook_name, args, cb) {
    //This is a api GET call, collect all post informations and pass it to the apiHandler
    args.app.get('/api/:version/:func', function (req, res) {
      apiCaller(req, res, req.query)
    });
  
    //This is a api POST call, collect all post informations and pass it to the apiHandler
    args.app.post('/api/:version/:func', function(req, res) {
      new formidable.IncomingForm().parse(req, function (err, fields, files) {
        apiCaller(req, res, fields)
      });
    });
  
    //The Collanote client side sends information about how a disconnect happened
    args.app.post('/ep/pad/connection-diagnostic-info', function(req, res) {
      new formidable.IncomingForm().parse(req, function(err, fields, files) { 
        clientLogger.info("DIAGNOSTIC-INFO: " + fields.diagnosticInfo);
        res.end("OK");
      });
    });
  
    //The Collanote client side sends information about client side javscript errors
    args.app.post('/jserror', function(req, res) {
      new formidable.IncomingForm().parse(req, function(err, fields, files) { 
        try {
          var data = JSON.parse(fields.errorInfo)
        }catch(e){
          return res.end()
        }
        clientLogger.warn(data.msg+' --', data);
        res.end("OK");
      });
    });
    
    //Provide a possibility to query the latest available API version
    args.app.get('/api', function (req, res) {
       res.json({"currentVersion" : apiHandler.latestApiVersion});
    });
  }
  