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Asked: 2026-05-25T13:04:01+00:00

I am using an asynchronous webservice which send me back a Job ID. The

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I am using an asynchronous webservice which send me back a Job ID. The full response is then send by the webservice as an XML file (jobId.xml) to my server using a PUT request.

After issuing the request to the webservice and getting the jobID, I
would like to know what would be the best (most efficient) way to wait
until the file is created into the PUT directory of my server?

I am thinking of a loop of file_exist() with a usleep() between each execution and with a timeout.

But I am sure that there is a better way.
Something like a listener…

The file can take less than a second to more than 1 minute to arrive.

Thanks!

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1 Answer

  1. Editorial Team

    1. You could use inotify to watch for file creations in some directory.

    2. Alternatively you could modify your PUT handler to notify your script. For example, you could create a named pipe, read from it (blocking), and modify your PUT handler to write on the pipe one it has written the file

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