How to handle ajax actions?

[Koc]

For example we have some ajax action which return json/xml. How it possible to profile it?

[phoenix128]

We are investigating on it to find a good way to debug it. Do you have any suggestion about that?

[Koc]

Maybe using Symfony's approach: write serialized data + csv index with possibility show info about last N requests. Plus overwrite xmlhttprequest http://symfony.com/blog/new-in-symfony-2-6-ajax-requests-in-the-web-debug-toolbar

[Koc]

see https://github.com/symfony/symfony/blob/master/src/Symfony/Component/HttpKernel/Profiler/FileProfilerStorage.php for more info

[phoenix128]

Could be an option. Thank you for your suggestion. We are also investigating in using payloads inside the response headers.

[Koc]

Please do not make response headers too big, it may cause hard to debug errors on webserver/browser side. See Seldaek/monolog#172

[phoenix128]

That was exactly our concern! This is why we stopped it for a while, but your suggestion could be a better option.

[barryvdh]

In https://github.com/maximebf/php-debugbar we use different approaches:

• For regular requests, render the data in json on the page itself
• For ajax requests, send a request ID in the headers. This ID is used to make an ajax request to the API to get the data (to prevent too large headers)
• For redirects (post actions), store the data in the session.

It then provides a dropdown to switch between requests. Eg. a save action will have 2 items, the POST request and the redirected page. So you can always see what happened on the POST (which is mostly more interesting). And ajax requests will trigger a new item in the dropdown.

[phoenix128]

@barryvdh , seems a good approach.