# Web callback notification
<a name="notification-web"></a>

You can configure AWS Elemental Conductor Live to send you web callback notifications when alerts occur. 

To receive web callback notifications, you must have a web server that supports php scripting. Use the following steps to configure this server to receive alert notifications from Conductor Live.

**To set up web callback notifications**

1. Use a text editor such as Notepad on a Windows system or Nano on Linux to create a `.php` file containing the following text:

   ```
   <?php
       function get_raw_post(){
           $data = @file_get_contents('php://input');
           if ($data){
               return $data;
           }
               return "nothing passed";
           }
   
       $file = "../webcallback/notify";
       $fh = fopen($file, "a");
       $data = get_raw_post();
       fwrite($fh, $data);
       fclose($fh);
   ?>
   ```

1. Save the file in a directory on your web server. 

1. Subscribe to all or some alerts using the steps described here:  
**Subscribe to all alerts**  

   1. On the Conductor Live web interface, go to the **Settings** page and make sure that you're on the **General** tab.

   1. Complete the **Global Alert Notification** fields as described in the following table and choose **Update**.    
[See the AWS documentation website for more details](http://docs.aws.amazon.com/elemental-cl3/latest/configguide/notification-web.html)  
**Subscribe to individual alerts**  

   1. On the Conductor Live web interface, go to the **Stats** page and choose **Notifications**.

   1. On the **Notifications** page, find the alert that you want to be notified on and choose the plus sign (\+) to expand it.

   1. Complete the fields as described in the following table and choose **Save**.    
[See the AWS documentation website for more details](http://docs.aws.amazon.com/elemental-cl3/latest/configguide/notification-web.html)

   1. For each alert that you want to be notified on, find the alert, then expand and complete the fields.

1. Test your setup by typing the following at the command line of the Conductor Live node:

   ```
   curl -X POST -d {{"param1=value1&param2=value2" http://yourdomain.com}}/webcallback/notification.php
   ```

1. Open your `notify.php` to check that it was updated. The text of your file should contain something like this:

   ```
   <?xml version="1.0" encoding="UTF-8"?>
   <job href="/jobs/3401">
     <node>earhart</node>
     <user_data></user_data>
     <submitted>2014-11-14 01:27:05 -0800</submitted>
     <priority>50</priority>
     <status>preprocessing</status>
     <pct_complete>0</pct_complete>
     <average_fps>0.0</average_fps>
     <elapsed>0</elapsed>
     <start_time>2014-11-14 01:27:06 -0800</start_time>
     <elapsed_time_in_words>00:00:00</elapsed_time_in_words>
   </job>
   
   param1=value&param2=value2
   ```

1. Enter your web callback URL into a web browser to see the HTTP post.