Shutter Stock API PHP Post Object formatting - php

Question

I am talking to the Shutter Stock API. I am certain the problem is not SS but more the formatting of my PHP Curl post as if I send this request via terminal I get a proper response.
The Terminal curl comand is as follows:
curl "https://api.shutterstock.com/v2/images/licenses?subscription_id=$SUBSCRIPTION_ID" \
--header "Authorization: Bearer $ACCESS_TOKEN" \
--header "Content-Type: application/json" \
-X POST \
--data '{
"images": [
{ "image_id": "137111171" }
]
}
so I am playing with sending this as a PHP curl instead and here is what I have:
$url = 'https://api.shutterstock.com/v2/images/licenses?subscription_id='.$SUBSCRIPTION_ID;
$params = new Object();
$params = {
'images' : {'image_id' : '137111171'}
};
$headers = [
'Content-Type: application/json',
'Authorization: Bearer '.$ACCESS_TOKEN
];
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 2);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_decode($params));
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch,CURLOPT_USERAGENT,'Butterfly');
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$response = curl_exec($ch);
curl_close($ch);
/*$json = json_decode($response, true);
if (json_last_error()) {
echo '<span style="font-weight:bold;color:red;">Error: ' . $response . '</span>';
} else {*/
return $response;
The response form Shutter Stock is "Decode body failure" which is a custom error response. I think the problem is in the $params variable and how it is formatted. Problem is that this is a post, I suspect that on the other side SS is decoding this in a specific way. The proper curl parameter is in the bash curl above as:
--data '{
"images": [
{ "image_id": "137111171" }
]
Does anyone have any suggestions about how to properly format this particular --data value so that I can send it as a POST?
Thanks

Answer 1

your PHP code contains invalid syntax, also PHP has no class named Object, but you're probably looking for StdObject, but even that doesn't make much sense here.. also you're not urlencoding $SUBSCRIPTION_ID . remove the invalid syntax parts, and use json_encode, not json_decode..
curl_setopt ( $ch, CURLOPT_POSTFIELDS, json_encode ( array (
'images' => array (
array (
'image_id' => '137111171'
)
)
), JSON_OBJECT_AS_ARRAY ) );
(edit, going by the comments, the api requires applicable data to be an array instead of an object, thus i added the JSON_OBJECT_AS_ARRAY flag.)

Answer 2

I think you pass wrong CURLOPT_POSTFIELDS data. Try:
$url = 'https://api.shutterstock.com/v2/images/licenses?subscription_id='.$SUBSCRIPTION_ID;
$params = [
'images' => ['image_id' => '137111171']
];
$headers = [
'Content-Type: application/json',
'Authorization: Bearer '.$ACCESS_TOKEN
];
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch,CURLOPT_USERAGENT,'Butterfly');
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$response = curl_exec($ch);
curl_close($ch);
return $response;