API V2 Upload Limit

It sounds like you're using /2/files/upload. That endpoint does have a file size limit of 150 MB. 

For larger files, you should use upload sessions instead.

This works the same way for both paid and free accounts.

Hi Greg,

Thanks for your response. please suggest how to use session with the curl in PHP.

An example of the same would be great because I am not able to implement it correctly after so many trials.

I changed my API URL: https://content.dropboxapi.com/2/files/upload_session/start

it gives "error in call to API function"

this is my header code

$headers = array('Authorization: Bearer ' . $token,
    'Content-Type: application/octet-stream',
    'Dropbox-API-Arg: ' .
    json_encode(
        array(
            "path" => '/' . basename($destPath . $to_zip_folder),
            "mode" => "add",
            "autorename" => true,
            "mute" => false
        )
    ),
    'Content-Type: application/octet-stream'
);

Thanks in advance.

vibh,

You seem to be doing things all yourself with curl.  It might be easier for you to use some PHP bindings to the Dropbox API that someone else has made.

There doesn't seem to be an official Dropbox PHP binding, but this looks popular and sort of active on github: https://github.com/kunalvarma05/dropbox-php-sdk

You can see it uses upload sessions so that you can upload files larger than 100MB piece by piece://github.com/kunalvarma05/dropbox-php-sdk/blob/master/src/Dropbox/Dropbox.php#L780

To install it, full their instructions here.  You might first have to install php composer to use this though, documentation for that is here.

If you're getting stuck on implementing an API just from the HTTP spec...I'd really recommend using an SDK since you'll likely just continue to have problems as you start using other Dropbox API features.

Hi,

Thanks for your response.

$api_url = 'https://content.dropboxapi.com/2/files/upload_session/start';

to above API my code is: 

$headers = array('Authorization: Bearer ' . $token,
    'Content-Type: application/octet-stream',
    'Dropbox-API-Arg: '.
    json_encode(
        array(

            "close"=>false,
        )
    ),


    'Content-Type: application/octet-stream'
);

$ch = curl_init($api_url);

curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_POST, true);

$path = $destPath . $to_zip_folder;
//echo $path;die;
$fp = fopen($path, 'rb');
$filesize = filesize($path);

curl_setopt($ch, CURLOPT_POSTFIELDS, fread($fp,$filesize));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug

$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

curl_close($ch);

response === {"session_id": "AAAAAAAAAFAB2YI_TkrUgw"}

http_code === 200

$api1_url = 'https://content.dropboxapi.com/2/files/upload_session/append_v2';

 to above API my code is:

$headers1 = array('Authorization: Bearer ' . $token,
    'Content-Type: application/octet-stream',
    'Dropbox-API-Arg: '.
    json_encode(
        array(

                "cursor"=>$w,

                "close" => false,
        )
    ),

    'Content-Type: application/octet-stream'
);

$ch = curl_init($api1_url);

    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers1);
    curl_setopt($ch, CURLOPT_POST, true);

    $path = $destPath . $to_zip_folder;
//echo $path;die;
    $fp = fopen($path, 'rb');
    $filesize = filesize($path);

    curl_setopt($ch, CURLOPT_POSTFIELDS, fread($fp,$filesize));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug

    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    curl_close($ch);

response === null

http_code === 200

 $api2_url = 'https://content.dropboxapi.com/2/files/upload_session/finish';

 to above my code is:

$headers2 = array('Authorization: Bearer ' . $token,
    'Content-Type: application/octet-stream',
    'Dropbox-API-Arg: ' .
    json_encode(
        array(

            "cursor"=>$w1,
            "commit"=>$q,

        )
    ),
    'Content-Type: application/octet-stream'
);

$ch = curl_init($api2_url);

    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers2);
    curl_setopt($ch, CURLOPT_POST, true);

    $path = $destPath . $to_zip_folder;
//echo $path;die;
    $fp = fopen($path, 'rb');
    $filesize = filesize($path);

    curl_setopt($ch, CURLOPT_POSTFIELDS, fread($fp,$filesize));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug

    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    curl_close($ch);

http_code === 413  

Please help. 

Hi,

Thanks for your response. Below is my code what I am using.

$api_url = 'https://content.dropboxapi.com/2/files/upload_session/start'; 

To above my code is:

$headers = array('Authorization: Bearer ' . $token,
    'Content-Type: application/octet-stream',
    'Dropbox-API-Arg: '.
    json_encode(
        array(

            "close"=>false,
        )
    ),


    'Content-Type: application/octet-stream'
);


$ch = curl_init($api_url);

curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_POST, true);

$path = $destPath . $to_zip_folder;
//echo $path;die;
$fp = fopen($path, 'rb');
$filesize = filesize($path);

curl_setopt($ch, CURLOPT_POSTFIELDS, '');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug

$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

curl_close($ch);

response === {"session_id": "AAAAAAAAAFXd8SqjQyOldQ"}

http_code === 200

$api1_url = 'https://content.dropboxapi.com/2/files/upload_session/append_v2';

 To above API my code is:

$headers1 = array('Authorization: Bearer ' . $token,
        'Content-Type: application/octet-stream',
        'Dropbox-API-Arg: '.
        json_encode(
            array(

                    "cursor"=>$w,

                    "close" => false,
            )
        ),

        'Content-Type: application/octet-stream'
    );
   //print_r($headers1);die;



    $ch = curl_init($api1_url);

    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers1);
    curl_setopt($ch, CURLOPT_POST, true);

    $path = $destPath . $to_zip_folder;
//echo $path;die;
    $fp = fopen($path, 'rb');
    $filesize = filesize($path);

    curl_setopt($ch, CURLOPT_POSTFIELDS, '');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug

    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    curl_close($ch);

response === null

http_code === 200

$api2_url = 'https://content.dropboxapi.com/2/files/upload_session/finish';

To above API my code is:

$headers2 = array('Authorization: Bearer ' . $token,
        'Content-Type: application/octet-stream',
        'Dropbox-API-Arg: ' .
        json_encode(
            array(

                "cursor"=>$w1,
                "commit"=>$q,

            )
        ),
        'Content-Type: application/octet-stream'
    );
   // print_r($headers2);die;
    $ch = curl_init($api2_url);

    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers2);
    curl_setopt($ch, CURLOPT_POST, true);

    $path = $destPath . $to_zip_folder;
//echo $path;die;
    $fp = fopen($path, 'rb');
    $filesize = filesize($path);

    curl_setopt($ch, CURLOPT_POSTFIELDS, fread($fp,$filesize));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug

    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    curl_close($ch);

http_code === 413

if I use 

curl_setopt($ch, CURLOPT_POSTFIELDS, fread($fp,$filesize));

 then status_code = 413.

if I use 

curl_setopt($ch, CURLOPT_POSTFIELDS, '');

then it will save 0-byte file.

please suggest what curl should be for these three API?

Please help.