# Webhooks
  
  ## Setup
  
  To interact with the webhooks of a group's scaling policy, you will need to setup the group and policy objects beforehand.
  
  ```php
  $groupId  = 'foo';
  $policyId = 'bar';
  
  $group  = $service->getGroup($groupId);
  $policy = $group->getPolicy($policyId);
  ```
  
  For more information about setting up the `$service` object, please see the userguide tutorial for [Autoscale groups]().
  
  ## Get all webhooks
  
  ```php
  $webhooks = $policy->getWebookList();
  ```
  
  ## Create a new webhook
  
  ```php
  $policy->getWebhook()->create(array(
      (object) array(
          'name' => 'Alice',
          'metadata' => array(
              'firstKey'  => 'foo',
              'secondKey' => 'bar'
          )
      )
  ));
  ```
  
  ## Get, update and delete an individual webhook
  
  ```php
  $webhookId = 'baz';
  $webhook   = $policy->getWebhook($webhookId);
  
  // Update the metadata
  $metadata = $webhook->metadata;
  $metadata->thirdKey = 'blah';
  $webhook->update(array(
      'metadata' => $metadata
  ));
  
  // Delete it
  $webhook->delete();
  ```