ImageReferenceBlock

An image, referenced by URL rather than embedded in the message.

You can point url at any image the end user's browser can reach.

Freeday-hosted URLs expire seven days after upload. Treat the url on an older message as potentially dead — an image replayed from channel history more than a week after it was sent will no longer load. Upload the image again to get a working link.

  • An image, referenced by URL rather than embedded in the message.

    You can point url at any image the end user's browser can reach.

    Freeday-hosted URLs expire seven days after upload. Treat the url on an older message as potentially dead — an image replayed from channel history more than a week after it was sent will no longer load. Upload the image again to get a working link.

    • Filename of the image, used as its alt text. Freeday-hosted uploads return a generated name (a UUID plus the original extension), not the name the user's file had.

    • Unique block identifier

    • Block type discriminator

    • URL the image is served from. For Freeday-hosted uploads this is a signed URL that stops working seven days after the upload.