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Forum Discussion
Invalid access token - across multiple Dropbox Team Spaces
We have suddenly seen an influx of the above error occuring for our customers including our own integrations tests (with no changes in code) I've been looking at the following post, we use PKCE ...
Hi awb,
Access tokens expire! (~4 hours live) Did you ensure refresh token accompanying the access token and use it on Dropbox client object initialization?
Also, you should ensure when for some reason refresh token cannot work (when some of the cases you described comes up), your code asks the user to link your application anew. So the user will know what exactly predisposes this behavior (its recent activity).
Hope this gives direction.
- Hi,
Thanks for the response. Tokens were refreshing fine until around 4pm BST.
Even trying to get a new token with pkce results in the same error.
From code perspective nothing has changed. The app we created is enabled and linked in our Dropbox. As far as I’m aware. Nothing has changed
awb wrote:
...
Even trying to get a new token with pkce results in the same error.
...I assume that happens on refresh time (despite you don't point it explicitly; correct me if that's not true). That means user's authorization for your application is canceled somehow (using one of the ways you enumerated already). 🤷 That's it.
There is no need something got changed. Just the granting was canceled. In such a situation new authorization has to be initiated from your application side (when catching such a case). 😉 This is the correct way - nothing else you can do, but just inform your users that after deauthorizing application they will need to authorize anew.
Good luck.
- We also get the same when re authorising our application.
tested this in two of our Dropbox team space accounts that our Dropbox app is installed in. Would be handy return a message to say why it’s invalid eg token revoked etc
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