Coverting CURL command to CURL php - php

Question

I am trying to add documents to elastic search index via bulk API. My CURL query works fine on command line and I converted it to PHP.
When I am trying to run PHP code, nothing happens. Neither documents are added in index in elastic search, nor any error appears.
CURL Query:
curl -H "Content-Type:application/json" -XPOST "http://localhost:9200/inven/default/_bulk?pretty" --data-binary "#file_name.json"
PHP Query:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://localhost:9200/inven/default/_bulk?pretty');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$post = array(
'file' => '#' .realpath('file_name.json')
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
curl_setopt($ch, CURLOPT_POST, 1);
$headers = array();
$headers[] = 'Content-Type: application/json';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$result = curl_exec($ch);
if (curl_errno($ch)) {
echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
I have set ini_set('max_execution_time', 0); as well, in case it, it was timing out.
What could be the issue?

Answer 1

You are not sending the actual file contents, just its filename as a string. Try this:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://localhost:9200/inven/default/_bulk?pretty');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1 );
// The line below assumes the file_name.json is located in the same directory
// with this script, if not change the path to the file with the correct one.
curl_setopt($ch, CURLOPT_POSTFIELDS, file_get_contents('file_name.json') );
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
$result = curl_exec($ch);
if (curl_errno($ch)) {
echo 'Error:' . curl_error($ch);
}
curl_close ($ch);

Answer 2

try $post = '#' .realpath('file_name.json')

Answer 3

If you are using PHP 5.5+, use:
$post = [
'file' => curl_file_create('file_name.json')
];
For more info check: Fix CURL file uploads.