implement TwingleForm.create

it's meant to get used to alter the 'page' url of a TwingleProject

api/v3/TwingleForm/Create.php

@@ -0,0 +1,59 @@
+<?php
+
+use CRM_TwingleCampaign_ExtensionUtil as E;
+
+/**
+ * TwingleForm.Create API specification (optional)
+ * This is used for documentation and validation.
+ *
+ * @param array $spec description of fields supported by this API call
+ *
+ * @see https://docs.civicrm.org/dev/en/latest/framework/api-architecture/
+ */
+function _civicrm_api3_twingle_form_Create_spec(array &$spec) {
+  $spec['id'] = [
+    'name'         => 'id',
+    'title'        => E::ts('TwingleProject ID'),
+    'type'         => CRM_Utils_Type::T_INT,
+    'api.required' => 1,
+    'description'  => E::ts('ID of the TwingleProject campaign'),
+  ];
+  $spec['page'] = [
+    'name'         => 'page',
+    'title'        => E::ts('TwingleProject Page URL'),
+    'type'         => CRM_Utils_Type::T_STRING,
+    'api.required' => 1,
+    'description'  => E::ts('URL of the TwingleProject Page'),
+  ];
+}
+
+/**
+ * TwingleForm.Create API
+ *
+ * @param array $params
+ *
+ * @return array
+ *   API result descriptor
+ *
+ * @throws CiviCRM_API3_Exception
+ * @see civicrm_api3_create_success
+ *
+ */
+function civicrm_api3_twingle_form_Create(array $params): array {
+
+  // filter parameters
+  $allowed_params = [];
+  _civicrm_api3_twingle_form_Create_spec($allowed_params);
+  $params = array_intersect_key($params, $allowed_params);
+
+  $result = civicrm_api3('TwingleProject', 'create', $params);
+
+  if ($result['is_error'] != 1) {
+    return civicrm_api3_create_success($result,$params,'TwingleForm', 'create',);
+  }
+  else {
+    return civicrm_api3_create_error(
+      'Could not create TwingleForm: ' . $result['error_message']
+    );
+  }
+}