cmc-sales/php/app/views/quotes/pdf.ctp

<?php
// Generate Quote PDF by calling the Go service instead of TCPDF.

$goBaseUrl = AppController::getGoBaseUrlOrFail();
$goEndpoint = $goBaseUrl . '/go/pdf/generate-quote';

$outputDir = Configure::read('pdf_directory');

$lineItems = array();
if (isset($products) && is_array($products)) {
    foreach ($products as $li) {
        $lineItems[] = array(
            'item_number' => isset($li['item_number']) ? $li['item_number'] : '',
            'quantity' => isset($li['quantity']) ? $li['quantity'] : '',
            'title' => isset($li['title']) ? $li['title'] : '',
            'unit_price' => isset($li['gross_unit_price']) ? floatval($li['gross_unit_price']) : 0.0,
            'total_price' => isset($li['gross_price']) ? floatval($li['gross_price']) : 0.0,
        );
    }
}

$payload = array(
    'document_id' => 0,
    'cmc_reference' => $enquiry['Enquiry']['title'],
    'revision' => intval($quote['Quote']['revision']),
    'created_date' => date('Y-m-d', strtotime($enquiry['Enquiry']['created'])),
    'customer_name' => $enquiry['Customer']['name'],
    'contact_email' => $enquiry['Contact']['email'],
    'contact_name' => $enquiry['Contact']['first_name'].' '.$enquiry['Contact']['last_name'],
    'user_first_name' => $enquiry['User']['first_name'],
    'user_last_name' => $enquiry['User']['last_name'],
    'user_email' => $enquiry['User']['email'],
    'currency_symbol' => isset($quote['Currency']['symbol']) ? $quote['Currency']['symbol'] : '$',
    'show_gst' => (bool)$enquiry['Enquiry']['gst'],
    'commercial_comments' => isset($commercialDetails) ? $commercialDetails : '',
    'line_items' => $lineItems,
    'pages' => array_map(function($p) { return $p['content']; }, $quote['QuotePage']),
    'output_dir' => $outputDir,
);

$ch = curl_init($goEndpoint);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$curlErr = curl_error($ch);
curl_close($ch);

if ($httpCode < 200 || $httpCode >= 300) {
    echo "<p>Failed to generate Quote PDF via Go service (HTTP $httpCode).";
    if ($curlErr) {
        echo " Error: $curlErr";
    }
    echo "</p>";
    exit;
}
?>

<script type="text/javascript">
    window.location.replace("/quotes/view/<?=$quote['Quote']['id']?>");
</script>