CURL fail to send POST request with filestream - php

Question

Trying to send filestream with other data to an API , but it return the error:
The video provided was null
Here is my code:
function create_video($files) {
$api = "http://api.brightcove.com/services/post";
$local_file_list = $files['file']['tmp_name'];
foreach ($local_file_list as $local_file) {
try {
$fp = fopen($local_file, 'r');
$ch = curl_init();
if (FALSE === $ch) {
throw new Exception('failed to initialize');
}
//"video":{"name":"test","shortDescription":"test","startDate":1432282741000,"endDate":null}
$request = 'json={"params":{"encode_to":"MP4","create_multiple_renditions":"True","token":"' . WRITE_TOKEN . '"},"method":"create_video"}';
curl_setopt($ch, CURLOPT_URL, $api);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $request);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_INFILE, $fp);
curl_setopt($ch, CURLOPT_INFILESIZE, filesize($local_file));
$content = curl_exec($ch);
if (FALSE === $content) {
throw new Exception(curl_error($ch), curl_errno($ch));
}
die(var_dump(json_decode($content)));
return json_decode($content);
} catch (Exception $e) {
trigger_error(sprintf('Curl failed with error #%d: %s', $e->getCode(), $e->getMessage()), E_USER_ERROR);
}
}
}
Few things need to note:
CURL does not return error , so it may not caused by CURL
The filesize($local_file) has return the correct file size
fopen($local_file, 'r'); return the stream type content, so the file is exist
How to fix that? Thanks
API reference:
https://docs.brightcove.com/en/video-cloud/media/references/reference.html#Video_Write
Update:
Thanks for helping , but it now return another error:
POST methods require valid JSON-RPC in the POST body, with "method" and "params" properties
I have some idea of that as when I look at the request payload, it is slightly different from the correct one:
Current my version:
------WebKitFormBoundary8VABz8KuNRE8Hepd
Content-Disposition: form-data; name="file[0]"; filename="big_buck_bunny.mp4"
Content-Type: video/mp4
------WebKitFormBoundary8VABz8KuNRE8Hepd--
The correct version
------WebKitFormBoundaryCAB6WEANBJxoB3Op
Content-Disposition: form-data; name="JSONRPC"
{"params":{"video":{"name":"test","shortDescription":"test","startDate":1432282741000,"endDate":null},"encode_to":"MP4","create_multiple_renditions":"True","token":"VyocgALDnxU8HPvmnSnckgmXjoPlYWomc2La5Tn-evuAfsnSPJJoow.."},"method":"create_video"}
------WebKitFormBoundaryCAB6WEANBJxoB3Op
Content-Disposition: form-data; name="filePath"; filename="big_buck_bunny.mp4"
Content-Type: video/mp4
------WebKitFormBoundaryCAB6WEANBJxoB3Op
Content-Disposition: form-data; name="JSONView"
{"params":{"video":{"name":"test","shortDescription":"test","startDate":1432282741000,"endDate":null},"encode_to":"MP4","create_multiple_renditions":"True","token":"VyocgALDnxU8HPvmnSnckgmXjoPlYWomc2La5Tn-evuAfsnSPJJoow.."},"method":"create_video"}
------WebKitFormBoundaryCAB6WEANBJxoB3Op--

Answer 1

You can wrap the file to upload into CURLFile (PHP >= 5.5):
$cfile = new CURLFile($local_file, 'video/mp4', basename($local_file));
Then, add to CURLOPT_POSTFIELDS, making it part of the whole request:
$ch = curl_init();
curl_setopt($ch, CURLOPT_POSTFIELDS, [
'file' => $cfile,
'JSONRPC' => '{"params":{"encode_to":"MP4","create_multiple_renditions":"True","token":"' . WRITE_TOKEN . '"},"method":"create_video"}';
]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$content = curl_exec($ch);
Before PHP 5.5 you can use the # to indicate a file:
curl_setopt($ch, CURLOPT_POSTFIELDS, [
'file' => "#$local_file",
'JSONRPC' => '{"params":{"encode_to":"MP4","create_multiple_renditions":"True","token":"' . WRITE_TOKEN . '"},"method":"create_video"}';
]);