File upload using BOX API

Answered

New post

July 15, 2020 02:56

Using BOX API in PHP program
I want to upload a file.

But it doesn't work.
In the response, the message "The request was rejected because no multipart boundary was found" is returned.

Please tell me the possible causes.
The sample code below does not work.

$request = $_REQUEST->all();
$file_obj = $ request->file('file');
$originalFileName = $file_obj->getClientOriginalName();
$uploadFileName = $file_obj->getFileName();
$uploadFileFull = $file_obj->getPathName();
$uploadFileSize = $file_obj->getSize();

$param_attributes = array('name' => $originalFileName, 'parent' => array('id' => '0'));
$param_file = "@".$originalFileName;
$param = array('attributes' => $param_attributes, 'file' => $param_file);

$param_json = json_encode($param);

$header = array("Authorization：Bearer { 'access_token' }", "Content-Type：multipart / form-data");

$ch = curl _init( "https://api.box.com/2.0/files/content" );
cur_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $param_json);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$response = curl_exec($ch);

Comments

3 comments

Jason

July 15, 2020 06:45

Hi , hope you are doing well.

The error may be in how you are attaching the file content to the curl request. I'm not sure what this does:

$param_file = "@".$originalFileName;

But one thing you can try is using the CURLFILE class:

https://www.php.net/manual/en/class.curlfile.php

Here is a working example on PHP 7.3:


$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "https://upload.box.com/api/2.0/files/content",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => array('attributes' => '{"name":"test.test", "parent": {"id": "0"}}','file'=> new CURLFILE('/path/to/file')),
  CURLOPT_HTTPHEADER => array(
    "Authorization: Bearer $token",
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

kishimoto2

July 15, 2020 17:58
Dear .

thank you for your answer.
It was very helpful
I'll try referring to the code that I was told.
Thank you very much.
0

Comment actions Permalink
kishimoto2

July 15, 2020 20:57
Dear .

There was a problem with the upload file specification.
By using the CURLFile object you taught me,
The problem is solved.

// Mistake part
$param_attributes = array('name' => $originalFileName,'parent' => array('id' => '0'));
$param_file = "@".$originalFileName;
$param = array('attributes' => $param_attributes,'file' => $param_file);
$param_json = json_encode($param);

// Modified part
$param_attributes = array('name' => $originalFileName,'parent'=> array('id' => '0'))
$param_file = new \CURLFile($uploadFileFull);
$param_json = array(
'attributes' => json_encode($param_attributes)
'file' => $param_file
);

Thank you very much.
0

Comment actions Permalink

Please sign in to leave a comment.