Allow file size and extensions specification for FileUpload components

[S2009-dev]

It would be cool if we could specify the requested files size in the FileUpload components, while remaining within the limits imposed by Discord.

Use cases:

• An attachment is uploaded in server1/channel1 and must be reposted in server2/channel2, we need to ensure that the bot can repost it.
• I have a modal that allows the user to upload a txt file with some data, but I want to restrict the maximum size for two reasons:
  • The file will be uploaded on my server and more than 25MB for a txt file is extremely huge.
  • I want to allow the user to upload larger files with premium subscription

[S2009-dev]

It also would be cool if we could specify the allowed file extensions ! If I want a txt file, I don't want a png one...

[Ariz-z]

i think you can add a custom checks in your code to check the file type and file size and if it goes above the limit and dont a proper type you can simply return a warning message

[Smidul]

Yeah, we can add custom checks to validate them. The real point is letting us set those limits up front — otherwise warning users after they’ve already uploaded a file isn’t very user‑friendly.

[S2009-dev]

And most importantly, the file is uploaded, so it's not very scalable.

[Ariz-z]

yeah i just gave a alternative idk this will be added soon but yeah its a good idea/suggestion

[biast12]

This would be really helpful tbh, it would also cut down on unnecessary file uploads, which obviously would benefit Discord too