Forum Discussion

FoxyLoxy's avatar
FoxyLoxy
New member | Level 2
4 years ago

Acces thumbnail images for PDFs

I'm using Dropbox to store PDF files, and my external application needs to programmatically access a thumbnail image of the first page for each of these PDF files.   These thumbnail images need t...
API
Здравко's avatar
Здравко
Legendary | Level 20
4 years ago
Greg-DB wrote:

... it looks like that failure is due to an invalid app key and/or secret value, so please double check your values. ...

Ok, Might be, but there is no reliable way I check it. The following is the way I use to get authentication values. I repeated the test with the same result.

curl -s -S -o ~/dump.txt -D - -g "https://content.dropboxapi.com/2/files/get_thumbnail_v2?arg={\"resource\":{\".tag\":\"link\",\"url\":\"<shared link>\"},\"size\":\"w128h128\"}&authorization=Basic%20$(echo "<app key>:<app secret>" | base64)"

Here used values are correct for sure; they are same as above (first command), but fails still (second command). Is the used algorithm wrong? 🤔 I thought it's the same as described, but...

Greg-DB's avatar
Greg-DB
Icon for Dropbox Community Moderator rankDropbox Community Moderator
4 years ago

Здравко You need to use "echo -n " instead of just "echo" in this case. When you don't set "-n", echo includes a trailing newline character which will corrupt your encoded app key/secret value.

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