This feature allows you to execute Workflow from any System, which could initiate HTTP Post Requests. You could also submit any values to the workflow and access these variables from every task.
This allows a very flexible Webservice System you could configure in vtigerCRM Frontend.

You could execute single Workflows by ID or trigger a custom trigger, which could be managed via trigger configuration.

The access to the HTTP Handler is denied per default for all IP's.
If you want to use such handler, you must grant access for single IP's/IP Ranges to execute a specific trigger/workflow.
This configuration could be done in the Workflow Designer configuration on “Settings HTTP Handler”.
If you press “new permission” or “edit” you will see the following form.

• The title is only used for usability and don't affect the permission.
• In the IP field you could configure all IP's which get permissions by this entry
  • Here you could use single IP's, but also Ranges in the following structure:
    • 192.168.0.
    • 192.168.0.100-192.168.0.160
    • 192.168.0.0/24
• The Trigger drop down will show all created triggers
• The Workflow drop down will show all workflows together with the ID, which you need for the execution

To configure the Workflow/Trigger you want to execute, use the following GET Variables:

• record_id
  Which record from CRM should be used by Workflow Designer to append the Workflow
  

If you don't want to connect a record, set the record_id = 0

• workflow_id
  Which Workflow should be executed? You get the Workflow ID from the URL in administration

?record_id=0&workflow_id=<IDofWorkflow>

To submit variables to the workflow only use POST variables to transfer data.
The values could be used inside the executed workflows in the $env variable.

For example if you submit a variable lastname to the workflow, you could access the variable in every task of this workflow by using

$env[“lastname”]

.

$url = '<urlofvtigerCRM>/<shorturl>?<ExecutionConfiguration>';
 
$fields = array(
   'firstname' => "Firstname",
   'lastname' => "Lastname",
   'street' => "streetname 123"
);
 
foreach($fields as $key=>$value) {
  $fields_string .= $key.'='.urlencode($value).'&';
}
rtrim($fields_string, '&');
 
$ch = curl_init();
 
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, count($fields));
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$result = curl_exec($ch);
curl_close($ch);

You want to execute the workflow with the ID 77 on the record 852 you need to write:

$url = '<urlofvtigerCRM>/<shorturl>?record_id=852&workflow_id=77';
 
$fields = array(
   'firstname' => "Firstname",
   'lastname' => "Lastname",
   'street' => "streetname 123"
);
 
foreach($fields as $key=>$value) {
  $fields_string .= $key.'='.urlencode($value).'&';
}
rtrim($fields_string, '&');
 
$ch = curl_init();
 
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, count($fields));
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$result = curl_exec($ch);
curl_close($ch);