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Vistashow to monitor the network on node.js similar to chrome/firefox developer tools?
When developing client side javascript applications, the developer network panel is invaluable for debugging network issues:
How does a developer creating a NodeJS application monitor the network traffic from the nodejs application to a http/https server? For example how to debug the following network traffic?
var http = require('http');
var req = http.request ...
req.write ...
req.send()
My code is making a call to a third party https server, so I am unable to use wireshark or similar packet sniffing tools.
For more information, the problem I am trying to investigate is here.
EDIT:
Here are similar questions asking how to do the same thing in other languages:
3 Respuestas
Responde la pregunta0
Use external HTTP Debugging tool. Your options include:
- node-http-proxy as seen in How do I use node.js http-proxy for logging HTTP traffic in a computer?
- middlefiddle written in node.js (but abandoned for 3 years now) https://github.com/mdp/middlefiddle
- mitmproxy - a CLI tool http://mitmproxy.org
- fiddler http://www.telerik.com/fiddler
- and many more - https://www.google.pl/search?q=HTTP+debugger
You fire up one of those, tell them where to route the traffic, and point your application at that debugging proxy instead of the real server.
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If you only need to see URLs of outgoing traffic and what caused it, You can use debugging-aid
npm i -D debugging-aid
node --require debugging-aid/network app.js
Resulting console output may look like this:
[aid] network, outgoing to: http://example.com/
stack: at Agent.createSocket (_http_agent.js:234:26)
at Agent.addRequest (_http_agent.js:193:10)
at new ClientRequest (_http_client.js:277:16)
at Object.request (http.js:44:10)
at Request.start (myapp-path/node_modules/request/request.js:751:32)
at Request.end (myapp-path/node_modules/request/request.js:1511:10)
[aid] network, outgoing to: http://example.com/
stack: at Agent.createSocket (_http_agent.js:234:26)
at Agent.addRequest (_http_agent.js:193:10)
at new ClientRequest (_http_client.js:277:16)
at Object.request (http.js:44:10)
at get (myapp-path/node_modules/got/source/request-as-event-emitter.js:234:22)
at Immediate.<anonymous> (myapp-path/node_modules/got/source/request-as-event-emitter.js:305:10)
Disclaimer:
I'm the author of debugging-aid
This answer was written when debugging-aid was on version 0.2.1
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I came to this question looking for something similar but I'm using the request package. In this case all you need to do is include this line in your code:
require('request-debug')(request);
(make sure request-debug package is installed)
This will print all the request data to the console.