get sub id by vm id

rest-api/provisioner_rest_api_extensions.php

@@ -437,6 +437,51 @@ function federated_needs_provision_subscriptions(){
     return array_map('get_subscription_id', $posts);
 }
 
+//Get by VM ID
+add_action('rest_api_init', 'federated_route_get_subscription_by_vm_id');
+
+function federated_route_get_subscription_by_vm_id(){
+    //register routes here
+    register_rest_route(
+        'federated-rest/v1',
+        'get-subscription-id-by-vm-id',
+        array(
+            'methods' => 'POST',
+            'callback' => 'federated_get_subscription_by_vm_id',
+            'permissions_callback' => 'check_federated_permissions'
+        )
+    );
+}
+
+function federated_get_subscription_by_vm_id($request){
+    $vm_id = $request['vm_id'];
+    
+    $args = array(
+        'numberposts'   => -1,
+        'post_type'     => 'shop_subscription',
+        'post_status'   => 'wc-active',
+        'meta_key'      => 'vm_id',
+        'meta_value'    => $vm_id
+    );
+	
+	$posts = get_posts($args);
+    $output = array();
+	
+    foreach($posts as $post) {
+        $subscription_id = get_subscription_id($post);
+        $subscription_vm_id = get_field('vm_id', $subscription_id);
+
+        if($subscription_vm_id == $vm_id) {
+            $output['subscription_id'] = $subscription_id;
+            return $output;
+        }
+    }
+
+    $output['subscription_id'] = 0;
+	return $output;
+}
+
+
 //Shared Functions
 function get_subscription_id($subscription){
 	return $subscription->ID;