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Forum Discussion
How to get an access token and refresh token
I am encountering issues when trying to obtain an access token and refresh token.
I retrieved the access code from the following URL: https://www.dropbox.com/oauth2/authorize?client_id=<app key>&redirect_uri=<REDIRECT URL>&token_access_type=offline&response_type=code
I input the access code obtained from the above into <AUTHORIZATION_CODE> and executed it:
{
"code": "<AUTHORIZATION_CODE>",
"grant_type": "authorization_code",
"redirect_uri": "<REDIRECT_URI>",
"client_id": "<APP_KEY>",
"client_secret": "<APP_SECRET>"
}
However, I received the following error:
There was an issue setting up your call.
Raw response for the API Status code 400
{"error": "invalid_request", "error_description": "The request parameters do not match any of the supported authorization flows. Please refer to the API documentation for the correct parameters."}
I am unsure of what needs to be corrected. Because this is not functioning correctly, I am unable to proceed with obtaining the refresh token.
I would appreciate your advice.
When you say you executed it, it sounds like you're referring to the step where you call /oauth2/token to exchange the authorization code for a refresh token and access token. It looks you're sending the parameters as JSON though, but the /oauth2/token endpoint requires application/x-www-form-urlencoded POST parameters, not JSON. Please update your code to send those parameters as application/x-www-form-urlencoded POST parameters. There's an example of this flow here that may be helpful.
- Greg-DB
Dropbox Staff
When you say you executed it, it sounds like you're referring to the step where you call /oauth2/token to exchange the authorization code for a refresh token and access token. It looks you're sending the parameters as JSON though, but the /oauth2/token endpoint requires application/x-www-form-urlencoded POST parameters, not JSON. Please update your code to send those parameters as application/x-www-form-urlencoded POST parameters. There's an example of this flow here that may be helpful.
Thank you for your help. It is working properly now.
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