CODEWITHSUNDEEP
javascriptajaxhttp
Andy Hin
Andy Hin

Reputation: 31893

Capture HTTP requests with Javascript

is it possible with javascript to listen for and capture outgoing HTTP requests? (For example, AJAX calls). Sort of like firebug, etc

Upvotes: 9

Views: 10540

Answers (3)

Sachin Jain
Sachin Jain

Reputation: 21842

If you want to capture all HTTP requests, I would suggest using Charles. Its an awesome tool which works as proxy and gives result in human readable form.

Shows Request, Response, Time Chart. The request is shown with headers. Response is shown with headers along with content. Worth trying it.

Upvotes: 1

Matthew Flaschen
Matthew Flaschen

Reputation: 284836

Sure, you can trace AJAX requests on your own pages. Make a wrapper for the XMLHttpRequest constructor that records the information you're interested in.

EDIT: An extension lets you observe internal browser operations. For example, you can see in Firebug's source that it observes all of Firefox's HTTP topics. These are "http-on-modify-request", "http-on-examine-response", and "http-on-examine-cached-response."

Upvotes: 5

David Hedlund
David Hedlund

Reputation: 129792

Nope, not like firebug. The closest thing you can do, if you're using a framework such as jQuery or Microsoft AJAX.NET, you can be notified when an AJAX request is issued through that specific framework.

For jQuery, that's .ajaxStart()

There are heaps of requests that this won't catch, though, such as all requested assets (script files, images, etc.)

Upvotes: 6

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