June 2016
Beginner to intermediate
376 pages
8h 23m
English
Content preview from Node.js Web Development - Third EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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HTTP Sniffer – listening to the HTTP conversation
The events emitted by the HTTPServer object can be used for additional purposes beyond the immediate task of delivering a web application. The following code demonstrates a useful module that listens to all the HTTP Server events. It could be a useful debugging tool, which also demonstrates how HTTP server objects operate.
Node.js's HTTP Server object is an EventEmitter and the HTTP Sniffer simply listens to every server event, printing out information pertinent to each event.
Create a file named httpsniffer.js containing the following code:
var util = require('util'); var url = require('url'); exports.sniffOn = function(server) { server.on('request', (req, res) => { util.log('e_request'); util.log(reqToString(req)); ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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