Timing body transmission in HTTP requests using restify/express

Question

A HTTP application is sending a large body in a specific POST method. I would like to measure the time taken in the server since the headers were received until the body was received. Is there a way I can assign events (data, end) to a route definition in restify or express? I wouldn't like to switch to node.js's raw HTTP server.

score 1 · Answer 1 · answered Sep 08 '14 at 07:18

Restify uses formidable to process file uploads. You can use the bodyParser plugin bundled with restify to listen to events on the multipart file handler. The end event can be logged to know when the file was completely received.

Use the restify server's pre() method to record when the request was received.

var restify = require('restify');
var server = restify.createServer();

server.post('/upload', function(req, res, next){
  res.send({upload: 'done'});
  next();
});

server.pre(function (req, res, next) {
  console.log("Request received at: " + req._time);
  next();
});

server.use(restify.bodyParser({
  multipartFileHandler: function(part) {
    // Fired when the parser is done receiving the file
    part.on('end', function(data) {
      console.log('File parsing ended: ' + new Date().getTime());      
    });
  }
}));

server.listen(8080, function() {
  console.log('%s listening at %s', server.name, server.url);
});

Timing body transmission in HTTP requests using restify/express

1 Answers1