Fixed REST applying tags for contacts

src/Infusionsoft/Api/Rest/TagService.php

@@ -46,20 +46,27 @@ public function removeContacts($contactIds)
  return $response;
  }
 
- public function addContacts($contactIds)
+ /**
+ * @param array $contactIds
+ * @param int $tagId
+ *
+ * @return mixed
+ * @throws InfusionsoftException
+ */
+ public function addContacts($contactIds, $tagId)
  {
- if ( ! is_array($contactIds)) {
+ if ( ! is_array($contactIds) ) {
  throw new InfusionsoftException('Must be an array of contact ids');
- } elseif (count($contactIds) > 100) {
+ }
+ if ( count($contactIds) > 100 ) {
  throw new InfusionsoftException('A maximum of 100 contact ids can be modified at once');
  }
-
+ if ( !is_int($tagId) ) {
+ throw new InfusionsoftException('Tag id must be an integer.');
+ }
  $contacts = new \stdClass();
  $contacts->ids = $contactIds;
-
- $response = $this->client->restfulRequest('post', $this->getFullUrl($this->id . '/contacts'), $contacts);
-
- return $response;
+ return $this->client->restfulRequest('post', $this->getFullUrl($this->id . '/' . $tagId . '/contacts'), $contacts);
  }
 
  public function addCategory($name, $description)