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Forum Discussion
AuthError 'invalid_access_token' with Python SDK after Token Refresh
Dear Dropbox Developer Team, I have been using the Dropbox API with your Python SDK for approximately four years without any issues. However, since November 25th or December 1st, I started encounter...
I see our messages just crossed, but yes, it sounds like that's the issue. The access tokens can certainly be longer than 255 characters, and you may have only recently started receiving access tokens of that length, so a database limit like that would cause the issue.
Greg-DB
Dropbox Staff
Dropbox StaffIt sounds like your database may be corrupting the access token, causing the subsequent API calls using the retrieved corrupted access tokens to fail. In particular, might your database have a length limit for storing the access tokens, which effectively truncates them?
Note that Dropbox API access tokens can vary in length, and you may have started receiving longer ones, potentially recently exceeding whatever the length limit is for your storage.
There isn't a guaranteed maximum length for Dropbox API access tokens, so make sure you're storing them via a method without a maximum length.
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