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"error_description": "missing required field \"grant_type\""
I am trying to get a sl access token with my refresh token but it gives this error. Any idea why? Input: {
"body": {
"grant_type": "",
"refresh_token": "<token>"
},
"contentType": "applicat...
In addition why are you using application/json encoding? It requires application/x-www-form-urlencoded POST parameters. 😉
Thanks, for your prompt responses. I am making these requests from another integration that doesn't support application/x-www-form-urlencoded.
Do you know any other way to make it work with an application/json encoding?
To be honest, I haven't tried (haven't need), but you may do it by "hands". Shouldn't be so difficult to join names and value using = and & (no additional encoding steps needed in particular - all value are URL compatible already). Right? 🙂
- Greg-DB
Dropbox Community Moderator
emretezisci The /oauth2/token endpoint does not support those parameters being passed as "application/json"; they'll need to be passed as "application/x-www-form-urlencoded".
While it is recommended to use some library or platform functionality to have that built automatically, as Здравко said you can otherwise try to build that directly.
Is there any other server-side authentication option that doesn't require "application/x-www-form-urlencoded"?
- Greg-DB
emretezisci There isn't another endpoint for using a refresh token to get a new short-lived access token.
If your platform doesn't natively provide support for writing the data as "application/x-www-form-urlencoded", I suggest checking your platform's documentation to see how you can supply a string instead so you can build the parameters in your own code, and also override the "Content-Type" header with "application/x-www-form-urlencoded".
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