Services Plugins FAQs

How to detect when a file is selected but not yet uploaded?

Plugins
#1

Hey team — I’m using the AWS File Uploader plugin and trying to do something very simple: show an “Upload” button only when a file has been selected (i.e., staged for upload, but not uploaded yet).

I’ve tried all of the following conditions:

  • File Name Original is not empty
  • List of Files is not empty
  • Progress of Files Upload > 0

But none of them trigger at the moment a file is selected. The condition either never evaluates true, or only becomes true after the file has already uploaded — which defeats the purpose.

This seems like basic functionality. Is there any reliable way to detect when a file is ready to be uploaded (but not yet uploaded)?

Thanks!

#2

Hello @michael.victor02 ,
Thank you for contacting us.

At the moment, the AWS File Uploader plugin does not offer a built-in event or condition that directly detects when a file is staged for upload (i.e., selected but not yet uploaded). Most of the plugin’s available conditions — like File Name Original, List of Files, or Progress of Files Upload — are only updated once the upload process has started or completed, which is why you’re not seeing the expected behavior.

To better help you out, could you please let us know whether you’re using the “File Uploader No GUI” element or the standard one? That will help us better understand your setup and explore possible workarounds or feature adjustments that could fit your use case.

Looking forward to your reply!

Best Regards,
Anton

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#3

@AntonZ

Thanks, Anton. Understood. I’m using the standard version. If there’s currently no way to detect staged files, can you let me know the proper set of workflow actions to upload immediately on file selection? (Though, some way to detect a staged file would be a huge help.)

#4

Hey @michael.victor02 ,
Thank you for your patience.

To achieve the functionality you’re looking for—showing the “Upload” button only after a file has been selected (but before it’s uploaded)—you’ll need to use the “File uploader No GUI” element included in the AWS File Uploader plugin.

Here’s what you need to do:

  1. Add the “File uploader No GUI” element to your page.
  2. Uncheck the “Instant upload” option in the element settings. This prevents the file from uploading automatically upon selection.
  3. Once that’s done, you can use the “Begin upload from input” workflow action to manually trigger the upload whenever you’re ready—such as when the user clicks your “Upload” button.

(Screenshot) :framed_picture:

Have a nice day!

Best Regards,
Anton

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