Security News
Namecheap Takes Down Polyfill.io Service Following Supply Chain Attack
Polyfill.io has been serving malware for months via its CDN, after the project's open source maintainer sold the service to a company based in China.
response-time
Advanced tools
Readme
Response time for Node.js servers.
This module creates a middleware that records the response time for requests in HTTP servers. The "response time" is defined here as the elapsed time from when a request enters this middleware to when the headers are written out to the client.
$ npm install response-time
var responseTime = require('response-time')
Create a middleware that adds a X-Response-Time
header to responses. If
you don't want to use this module to automatically set a header, please
see the section about responseTime(fn)
.
The responseTime
function accepts an optional options
object that may
contain any of the following keys:
The fixed number of digits to include in the output, which is always in
milliseconds, defaults to 3
(ex: 2.300ms
).
The name of the header to set, defaults to X-Response-Time
.
Boolean to indicate if units of measurement suffix should be added to
the output, defaults to true
(ex: 2.300ms
vs 2.300
).
Create a new middleware that records the response time of a request and
makes this available to your own function fn
. The fn
argument will be
invoked as fn(req, res, time)
, where time
is a number in milliseconds.
var express = require('express')
var responseTime = require('response-time')
var app = express()
app.use(responseTime())
app.get('/', function (req, res) {
res.send('hello, world!')
})
var finalhandler = require('finalhandler')
var http = require('http')
var responseTime = require('response-time')
// create "middleware"
var _responseTime = responseTime()
http.createServer(function (req, res) {
var done = finalhandler(req, res)
_responseTime(req, res, function (err) {
if (err) return done(err)
// respond to request
res.setHeader('content-type', 'text/plain')
res.end('hello, world!')
})
})
var express = require('express')
var responseTime = require('response-time')
var StatsD = require('node-statsd')
var app = express()
var stats = new StatsD()
stats.socket.on('error', function (error) {
console.error(error.stack)
})
app.use(responseTime(function (req, res, time) {
var stat = (req.method + req.url).toLowerCase()
.replace(/[:\.]/g, '')
.replace(/\//g, '_')
stats.timing(stat, time)
}))
app.get('/', function (req, res) {
res.send('hello, world!')
})
FAQs
Response time for Node.js servers
We found that response-time demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Polyfill.io has been serving malware for months via its CDN, after the project's open source maintainer sold the service to a company based in China.
Security News
OpenSSF is warning open source maintainers to stay vigilant against reputation farming on GitHub, where users artificially inflate their status by manipulating interactions on closed issues and PRs.
Security News
A JavaScript library maintainer is under fire after merging a controversial PR to support legacy versions of Node.js.