Level 37
Yes but using Javascript in this case, you can't do it with Livewire, check this article, it's what you are looking for
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Sep 11, 2022
4
Level 1
Livewire: Validate rule(s) before creating a temporary file upload
The Livewire.php file contains a set of rules temporary_file_upload. These rules are validated after the file has been stored to the temporary directory. Would it be possible when creating a simple upload input, to validate e.g. the mimetype before it automatically starts uploading the file to the temporary place?
Level 1
@OussamaMater Thanks, though I was hoping for a server sided solution.
Level 37
@JayZeee You can't really do so, if it's server side than the file has to go to the server and be placed somewhere :)
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Level 102
@JayZeee the server cannot know anything about the file without the file
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