GBG Id scan Api in php - php

Question

I need to implement GBG id scan api to recognize uploaded identity documents verification.
I have tried as following. Platform is php codeigniter.
$img_path = base_url()."images/NID-1.jpg";
$img_content = file_get_contents($img_path);
$encode_img = base64_encode($img_content);
$img_path2 = base_url()."images/NID-2.jpg";
$img_content2 = file_get_contents($img_path2);
$encode_img2 = base64_encode($img_content2);
$ids_user_name = "XXXXXXXXXX";
$ids_passwd = "XXXXXXXXXXX";
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://poc.idscan.cloud/idscanenterprisesvc/token',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS => 'username='.$ids_user_name.'&password='.$ids_passwd.'&grant_type=password&area=scanning',
CURLOPT_HTTPHEADER => array(
'Content-Type: application/x-www-form-urlencoded'
),
));
$response = curl_exec($curl);
curl_close($curl);
$decode_response = json_decode($response);
$access_token = $decode_response->access_token;
$token_type = $decode_response->token_type;
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://poc.idscan.cloud/idscanenterprisesvc/journey/upload',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_POSTFIELDS =>"{'InputImages': [{'Name':'WhiteImage','ImageFormat':'jpg','Data':'".$encode_img."'}],'IsDocumentExtracted':'false','Source':2}",
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer '.$access_token,
'Content-Type: application/json'
),
));
$response1 = curl_exec($curl);
curl_close($curl);
$decode_response1 = json_decode($response1);
echo '<pre>';
print_r($decode_response1);
exit;
Response:
stdClass Object
(
[PersonEntryId] => 00000000-0000-0000-0000-000000000000
[EntryDateTime] => 0001-01-01T00:00:00
[CurrentResult] => ProcessingError
[IsFinished] =>
[RequestId] => 00000000-0000-0000-0000-000000000000
[HasError] =>
[EntryData] => stdClass Object(
)
)
pls Help me to solve this ProcessingError
i have referred this document https://docs.idscan.com/docs/ieos-web-api-8-7/actions/upload/
I need to upload identity document to IDscan backend to be processed along with an optional face match input data to match two faces.
Thanks in advance..