You might see that the Dropbox Community team have been busy working on some major updates to the Community itself! So, here is some info on what’s changed, what’s staying the same and what you can expect from the Dropbox Community overall.
Forum Discussion
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-token
https://blogs.dropbox.com/developers/2013/07/using-oauth-2-0-with-the-core-api/
This is the code I am runing after being redirected from Dropbox page:
<?php
if (isset($_GET['code'])) {
echo 'UserCode -> ' . $_GET['code'];
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
curl_setopt($ch, CURLOPT_URL, "https://api.dropboxapi.com/oauth2/token");
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array('code'=> $_GET['code'], 'client_id' => "5n5**********aw", 'client_secret' => "zq**********tn8", 'grant_type' => $_GET['code'], 'redirect_uri' => 'http://localhost/optiSurface-dropbox/login.php')));
$response = curl_exec($ch);
echo '<pre>';
var_dump($response);
echo '</pre>';
}else{
header('Location: http://localhost/optiSurface-dropbox/curl-auth1.php');
}However, I am receiving a error message as follow:
string(154) "{"error_description": "\"grant_type\": got \"L22mWRF0R0AAAAAAAAAGt4o3aW761b9KrBSPgX6OugA\", expecting \"authorization_code\"", "error": "invalid_request"}"As the error message says, it was expecting the authorization code. I am unsure what variable/data to use in this parameter.
Reading the documentation, I noted that is the same value from code attribute:
curl https://api.dropbox.com/oauth2/token \
-d code=<AUTHORIZATION_CODE> \
-d grant_type=authorization_code \
-d redirect_uri=<REDIRECT_URI> \
-u <APP_KEY>:<APP_SECRET>How can I fix this problem?
Thank you in advance!
The "grant_type" parameter value should literally be the string "authorization_code", and only the "code" parameter value should be the authorization code string you received.
That is to say, your parameter line should like something like this instead:
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array('code'=> $_GET['code'], 'client_id' => "5n5**********aw", 'client_secret' => "zq**********tn8", 'grant_type' => "authorization_code", 'redirect_uri' => 'http://localhost/optiSurface-dropbox/login.php')));By the way, you linked to the old version of the documentation. For reference, the current version is here: https://www.dropbox.com/developers/documentation/http/documentation#oauth2-token
Problem solved!!
I just realized it's not necessary to include the complete path from the URL. Since the app has permission to access just it's own folder, I just included the file path itself.
So my json file it's like this:
{ "path": "/text.txt", "include_media_info": false, "include_deleted": false, "include_has_explicit_shared_members": false }Thank you!!
- Greg-DB
Dropbox Staff
The "grant_type" parameter value should literally be the string "authorization_code", and only the "code" parameter value should be the authorization code string you received.
That is to say, your parameter line should like something like this instead:
curl_setopt($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
Thank you Greg!
I am trying to list the files (/get_metadata) in my app folder but for some reason I can't set up the correct path. Take a look at this message:
{"error_summary": "path/not_found/", "error": {".tag": "path", "path": {".tag": "not_found"}}}The app folder was automatically created by Dropbox, and after that I created a txt file named text.txt inside it. As you can see, this is the path:
However, when I send the /get_metadata request via curl I receive the error message that the path dosen't exist.
This is the json file - named getMetadata.json - with the parameters:
{ "path": "/home/Aplicativos/optisurface", "include_media_info": false, "include_deleted": false, "include_has_explicit_shared_members": false }This is the curl request I am using:
<?php require_once 'Functions/functions.php'; $token = getToken($_SESSION['uid']); $data = file_get_contents('json/getMetadata.json'); $ch = curl_init(); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Bearer ' . $token[0]->itoken, 'Content-Type: application/json')); curl_setopt($ch, CURLOPT_URL, "https://api.dropboxapi.com/2/files/get_metadata"); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); $response = curl_exec($ch); echo '<pre>'; print_r($response); echo '</pre>'; ?>Can you help me saying what am I doing wrong?
Meanwhile, I used the /list_folder request since it supports root path just by leaving it empty "".
{"entries": [{".tag": "file", "name": "text.txt", "path_lower": "/text.txt", "path_display": "/text.txt", "id": "id:WEoRMx3RGMAAAAAAAAAAJg", "client_modified": "2019-03-08T00:23:18Z", "server_modified": "2019-03-08T00:23:18Z", "rev": "012000000012ec82090", "size": 5, "content_hash": "fe362d76b941f8f883e360e1a7bd26c78d4252c8229621711d6857846a2285f8"}], "cursor": "AAGNZvzM-WGZO5F9XFCBcrTUsT6mhUTRHnnY12-dD6lPgRK-hUZFzy8zMvgbnPMBuvKpIFY-1-QTfe0m_qpJMEE0hUs-JHq_gvzY1gGg2zIEblN0sE8MaGJnnyI_9a5dTi8CwzzfjgwL86mZtZL6UbMi", "has_more": false}But I really want to understand why /get_metadata ins't working because in future code I'll need to access specifics paths.
Thank you in advance!
About Dropbox API Support & Feedback
Find help with the Dropbox API from other developers.
