Slack Slash Command - inline image attachments
<p>I'm making a cribbage app for our slack channel. It's played using Slash commands. I'm currently showing the player their hand when they type the /showHand command, and it works, but I'd really like to be able to inline the image attachments but I cannot find a way to do this. Currently, it looks like this:
<a href="https://i.stack.imgur.com/457Ui.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/457Ui.png" alt="enter image description here" /></a></p>
<p>And if I use thumbnails it looks like this:
<a href="https://i.stack.imgur.com/G0gkl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/G0gkl.png" alt="enter image description here" /></a></p>
<p>Is there a better approach? Possibly a way to add multiple images to one attachment? Possibly a display option to display response attachments inline?</p>
<p>UPDATE:
I followed Szymon Roziewski's advice and created a server-side module to download  the card images I needed and create the final image of the player's hand. The images are cached so they only need to be downloaded once during the lifetime of the dyno.
I also contacted Slack support and I was told that inlining image attachments isn't currently possible but they might make it a future feature.</p>