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lrduques's avatar
lrduques
Helpful | Level 6
6 years ago
Solved

OAuth2 access token request invalid - grant_type expecting \"authorization_code"\

Hi, I am trying to obtain an acces token by converting the authorization code. I followed both documentation available in the following links:  https://www.dropbox.com/developers-v1/core/docs#oa2...
  • Greg-DB's avatar
    6 years ago

    The "grant_type" parameter value should literally be the string "authorization_code", and only the "code" parameter value should be the authorization code string you received. 

    That is to say, your parameter line should like something like this instead:

        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array('code'=> $_GET['code'], 'client_id' => "5n5**********aw", 'client_secret' => "zq**********tn8", 'grant_type' => "authorization_code", 'redirect_uri' => 'http://localhost/optiSurface-dropbox/login.php')));

    By the way, you linked to the old version of the documentation. For reference, the current version is here: https://www.dropbox.com/developers/documentation/http/documentation#oauth2-token 

  • lrduques's avatar
    lrduques
    6 years ago

    Problem solved!! 

    I just realized it's not necessary to include the complete path from the URL. Since the app has permission to access just it's own folder, I just included the file path itself.

    So my json file it's like this:

    {
        "path": "/text.txt",
        "include_media_info": false,
        "include_deleted": false,
        "include_has_explicit_shared_members": false
    }

    Thank you!!

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