express-latency-headers

Add latency headers to express

Usage no npm install needed!

<script type="module">
  import expressLatencyHeaders from 'https://cdn.skypack.dev/express-latency-headers';
</script>

README

Express Latency Header Middleware

This middleware adds two headers to the response.

  • x-request-received is set by the server with the timestamp of when the request was received
  • x-response-sent is set by the server with the timestamp of when the response was sent

More information on why to add these headers.

Example

npm install express-latency-headers --save

var express = require('express')
var latencyHeaders = require('express-latency-headers')
var app = express()

app.use(latencyHeaders())

app.use(function(req, res, next) {
  setTimeout(function(){
    res.send('Hello World!')
  },1000)
})

var server = app.listen(3000)