diff --git a/fulcrm_webhook.module b/fulcrm_webhook.module
index d2ce2d2..24e61b1 100644
--- a/fulcrm_webhook.module
+++ b/fulcrm_webhook.module
@@ -36,6 +36,39 @@ function fulcrm_webhook_menu() {
     return $items;
 }
 
+function fulcrm_webhook_get_pk_for_entity_type( $entity_type, $entity_id, $fulcrm_type ) {
+    $query = db_select( 'fulcrm_webhook_entity_mapping', 'fwem' )
+        ->fields( 'fwem', array( 'fulcrm_pk' ) )
+        ->condition( 'entity_type', $entity_type )
+        ->condition( 'entity_id', $entity_id )
+        ->condition( 'fulcrm_type', $fulcrm_type );
+    $result = $query->execute();
+    return $result->fetchField();
+}
+
+function fulcrm_webhook_find_entity( $data ) {
+    if ( array_key_exists( 'url', $data ) ) {
+        $url = $data[ 'url' ];
+        $fulcrm_type = fulcrm_apiv2_url_to_type( $url );
+        $fulcrm_pk = fulcrm_apiv2_url_to_pk( $url );
+
+        $query = db_select( 'fulcrm_webhook_entity_mapping', 'fwem' )
+            ->fields( 'fwem', array( 'entity_type', 'entity_id' ) )
+            ->condition( 'fulcrm_type', $fulcrm_type )
+            ->condition( 'fulcrm_pk', $fulcrm_pk );
+
+        $result = $query->execute();
+        foreach ( $result as $row ) {
+            return entity_load( $row->entity_type, array( $row->entity_id ) );
+        }
+
+        module_invoke_all( 'fulcrm_find_entity', $fulcrm_type, $fulcrm_pk );
+    }
+}
+
+function fulcrm_webhook_fulcrm_find_entity( $fulcrm_type, $fulcrm_pk ) {
+}
+
 function fulcrm_webhook_webhook( $uuid ) {
     if ( $uuid === variable_get( 'fulcrm_webhook_url' ) ) {
         $headers = getallheaders();
@@ -52,24 +85,34 @@ function fulcrm_webhook_webhook( $uuid ) {
         $client_id = variable_get( 'fulcrm_apiv2_client_id' );
 
         if ( fulcrm_apiv2_prevent_loop( $headers ) ) {
+            $op = null;
+
             switch ( $method ) {
             case 'GET':
-                drupal_json_output( array( "status" => "error", "info" => "GET requests do nothing; webhooks must be POST, PATCH, PUT, or DELETE" ) );
+                drupal_json_output( array( "status" => "error", "info" => "GET requests do nothing; webhooks must POST, PATCH, PUT, or DELETE" ) );
                 break;
             case 'DELETE':
+                $op = 'DELETE';
+                break;
             case 'POST':
+                $op = 'CREATE';
+                break;
             case 'PATCH':
             case 'PUT':
+                $op = 'UPDATE';
+                break;
+            default:
+                drupal_json_output( array( 'status' => 'error', 'info' => 'unsupported method' ) );
+                break;
+            }
+
+            if ( $op ) {
                 if ( $payload === null ) {
                     drupal_json_output( array( 'status' => 'error', 'info' => $payload_error_msg ) );
                 } else {
                     // actually do something :)
                     drupal_json_output( array( 'status' => 'ok', 'headers' => $headers, 'method' => $method ) );
                 }
-                break;
-            default:
-                drupal_json_output( array( 'status' => 'error', 'info' => 'unsupported method' ) );
-                break;
             }
         } else {
             drupal_json_output( array( 'status' => 'ok', 'info' => 'loop prevention' ) );