I am creating a website using nodejs
. In a page of my website, i request to google then parse its results and send them to the user. I use request
module of npm
to request to google. request
module has a flag called time
that if i set it to true then request
gives me details of timing of the request. I request to google like this:
var express = require('express');
var router = express.Router();
var request = require('request');
router.get('/', function(req, res, next) {
return request({
url: 'https://<google-ip>/search?q=' + req.query.query + '&num=30&start=0',
headers: {
'host': 'www.google.com'
},
strictSSL: false,
time: true,
gzip: true,
}, function (error, response, body) {
res.send(
{
'starts_at: ':{
'timings.socket':response.timings.socket,
'timings.lookup':response.timings.lookup,
'timings.connect': response.timings.connect,
'timings.response': response.timings.response,
'timings.end': response.timings.end
},
'duration: ':{
'timingPhases.wait': response.timingPhases.wait,
'timingPhases.dns': response.timingPhases.dns,
'timingPhases.tcp': response.timingPhases.tcp,
'timingPhases.firstByte': response.timingPhases.firstByte,
'timingPhases.download': response.timingPhases.download,
'timingPhases.total': response.timingPhases.total
}
});
});
});
module.exports = router;
And the output is here:
{
starts_at:
{
timings.socket: 3.725953000015579,
timings.lookup: 3.725953000015579,
timings.connect: 117.76885500003118,
timings.response: 692.0431389999576,
timings.end: 1220.5685750000412
},
duration:
{
timingPhases.wait: 3.725953000015579,
timingPhases.dns: 0,
timingPhases.tcp: 114.0429020000156,
timingPhases.firstByte: 574.2742839999264,
timingPhases.download: 528.5254360000836,
timingPhases.total: 1220.5685750000412
}
}
But when i search the same query in chrome i get these results:
I do not know why these numbers are very different. tcp
time in nodejs
takes about 114 miliseconds but in chrome it takes about 0 milisecond. Also both chrome and nodejs
server are in a same region but time-to-first-byte
in nodejs
is slower than chrome about 245 miliseconds.
How can i improve nodejs
to be like chrome?