Images are only sent as links and don't show up on Discord

[AllegraCodes]

Discord and other destinations are typically outside our local network, so references to images on our servers as shown in the templates can't resolve unless your server is accessible from the public web.

It would be fantastic if we could choose to upload the image files along with the message so thumbnails etc are visible in the message. This is allowed on discord webhooks but does require a more complicated http request.

[AllegraCodes]

I made a proof-of-concept/stopgap-solution using spring and jackson that may be helpful to whoever may implement this

https://github.com/AllegraCodes/jellyfin-discord-webhook-interceptor

[kristianvld]

I would also very much appreciate this feature. It would be nice to have this support all the places where an image can be added, not just the thumbnail as proposed in the pull request, such as the author.icon_url, footer.icon_url, image.url and thumbnail.url.

Perhaps the best thing would be to add another helper function in handlebars, which when called would download the image and add it as an attachment and return the attachment URL to be added to the field in question. This would also need to handle the attachments list somehow. Either that or that the plugin detects which images are local to Jellyfin and which might be external and perhaps images that you do not want to download and upload as attachments.