How are image links generated?

support
1

Here’s a large image:

image
image.jpg1920×1278 387 KB

Its original link is: https://assets-meta-cdck-prod-meta.s3.dualstack.us-west-1.amazonaws.com/original/3X/a/3/a37df25f15fccd47dc543f3d5751d81cb61dbe6b.jpeg
Which is different from ![image|690x459](upload://nkjFnpawJaOanmycDbIXVG4jlkn.jpeg)

It will however, also have multiple optimized (for size and dimensions) versions.
Here’s one i got: https://d11a6trkgmumsb.cloudfront.net/optimized/3X/a/3/a37df25f15fccd47dc543f3d5751d81cb61dbe6b_2_690x459.jpeg.

My questions are:

  • can i link somehow to the image via the “upload link”: ![image|690x459](upload://nkjFnpawJaOanmycDbIXVG4jlkn.jpeg) (eg: https://meta.discourse.org/uploads/nkjFnpawJaOanmycDbIXVG4jlkn.jpeg) => i would expect that discourse will redirect me to the correct url afterwards.
  • how can i know what other links/versions of my image are created?
    eg. :
    • https://assets-meta-cdck-prod-meta.s3.dualstack.us-west-1.amazonaws.com/original/3X/a/3/a37df25f15fccd47dc543f3d5751d81cb61dbe6b.jpeg
    • or maybe https://assets-meta-cdck-prod-meta.s3.dualstack.us-west-1.amazonaws.com/original/>>>2<<<X/a/3/a37df25f15fccd47dc543f3d5751d81cb61dbe6b.jpeg (this one doesnt exist)
    • other versions for retina, mobile, idk?
2

Since it’s a custom URL scheme, that kind of link will only work in a Discourse instance. Plus, if you want the link to actually work, it’ll need to be a link to an image on the same instance.

Why would you want to know? In Discourse, there are the “original” and a bunch of thumbnails (what we call optimized) which are mostly generated to support different pixel ratios.

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3

Well, i’m mostly interested in getting the original link.

Right now if Copy link address: image on my picture above i get

https://d11a6trkgmumsb.cloudfront.net/original/3X/a/3/a37df25f15fccd47dc543f3d5751d81cb61dbe6b.jpeg

which even although has original in the name, is not the same as

https://assets-meta-cdck-prod-meta.s3.dualstack.us-west-1.amazonaws.com/original/3X/a/3/a37df25f15fccd47dc543f3d5751d81cb61dbe6b.jpeg.

My point is that if in the future discourse would change the cdn, all the links with the old cdn will be broken.

4

That’s the exact same file (cue the filename), except your 1st link is on the CDN and the 2nd link is on S3 (the storage we use here on meta).

1 Like
5

i just modified the post again (sry, i though you werent gonna answer that fast :blush: )

6

Click / tap the image and click / tap the download link at the bottom. Problem solved.

image

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