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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...
Greg-DB
Dropbox Community Moderator
Dropbox Community ModeratorЗдравко Your code does work for me, as long as I add "-n", and plug in my own app key/secret and shared link. That "not_found" error should indicate an issue with the shared link in this case. Make sure you're supplying a valid and accessible shared link value and are encoding it correctly. For instance, it appears your "arg" URL parameter value is not encoded, though it's not clear if that is how you're sending it or if that's just for illustration purposes.
For example, here's a working version of your code, with the "-n" and an encoded arg containing a sample link:
curl -s -S -o ~/dump.txt -D - -g "https://content.dropboxapi.com/2/files/get_thumbnail_v2?arg=%7B%22resource%22%3A%7B%22.tag%22%3A%22link%22%2C%22url%22%3A%22https%3A%2F%2Fwww.dropbox.com%2Fs%2F1xzftgs96f8ksbx%2Ftest.pdf%3Fdl%3D0%22%7D%2C%22size%22%3A%22w128h128%22%7D&authorization=Basic%20$(echo -n "<app key>:<app secret>" | base64)"
Thanks Greg-DB,
It's not exactly missing URL encoding, but you drive my to right direction and I found out what's wrong. Since I have used non ASCII symbols in the file name this seems confuses the function. I have no idea why? There is an easy workaround: I just stripped filename in the link; the name isn't mandatory there. Everything works now. 😉
You can take a look if this can be fixed. To reproduce, just rename your "test.pdf" to something like "тест.pdf", for example. It still works while passed as header, but not as parameter! Anyway... I successfully bypassed the issue. 👍
Thanks again!
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