File upload using BOX API

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kishimoto2

• 2020年07月15日 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);

 

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• 

  Jason

  • 2020年07月15日 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;

   

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• 

  kishimoto2

  • 2020年07月15日 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.

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• 

  kishimoto2

  • 2020年07月15日 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.

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