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javascriptphpfat-free-framework

triggering a background task by web client without loosing session

I have a webapp that is supposed to run a resource-intensive task (function) that will take time to complete. I'm triggering this task by calling a url;

http://app.domain.com/process_file/@fileid

However, as expected, the web client waits for the task (function) to complete. This is likely to cause time outs.

Please suggest ways i can trigger the task and let the user continue navigating the webapp.

I have tried the following so far;

1. JQuery/ajax
2. Redirecting to a _blank page

NB: I have no access to the crontab or Scheduler. I'm using PHP, JavaScript & fat-free framework

Solution

  • I believe you're looking for the abort function:

    function (Base $f3) {
  // process request and send response to client (could be a redirect status)
  $f3->abort(); // disconnect the client
  // perform consuming task here
}

    This is basically the solution suggested by Pavel Třupek, wrapped in a method for convenience.