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Error when attempting to get an access token using refresh token
I keep encountering the same error when I attempt to use my refresh token, client id and client secret to get a new access token in my javascript code:
" Error in call to API function "files/upload...
Hi Greg,
Thank you so much for your reply!
Do you have any basic examples of doing this through javascript? I've been able to get the refresh token using curl, but I haven't had the same luck with my code. I've looked at the documentation on the OAuth guide and authorization documentation but I can't get the Javascript to function.
Thank you!
Greg-DB
Dropbox Community Moderator
Dropbox Community ModeratorGIS_questions As Здравко referred to, I recommend using the official Dropbox JavaScript SDK if possible, as it will do much of the work for you. Alternatively, it may also just serve as a good example even if you can't use it.
Hi Greg-DB,
Would you mind taking a look at this code and telling me where I'm going wrong? Currently I'm getting a 400 error regarding the bearer. I am using the access code for the bearer, though I don't know if it has to be the access token? The problem there being that I have to use this code to get the temporary access token, so I don't know how to request the access token without a preexisting access token, if that makes any sense? I'm using the url: https://api.dropbox.com/oauth2/token. I've also tried this without the Authorization request header, and with a grant_type of client_credentials.
Thank you so much for your help!
- Greg-DB
Whenever you get an error like this 400 error response, be sure to print out the response body as it will generally contain a more useful error message. What does it contain in this case?
Looking at your code though, I see you're attempting the step where you call /oauth2/token with the existing refresh token to get a new short-lived access token. That corresponds to the "refresh token request" example in the documentation for /oauth2/token. There are a few things that look wrong in your code as compared to that:
- you should not be supplying a Bearer token/code; this step does not require or accept an access token or authorization code
- you should not be setting the Content-Type to application/json or JSON-encoding your parameters; this OAuth endpoint expects the parameters as application/x-www-form-urlencoded POST parameters
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