Support for Smartsheet Webhooks

1. What is your feature/integration request?
Better support for webhooks, specifically Smartsheet


2. What problem would this feature/integration solve?

It looks like Smartsheet is expecting Parabola to send this type of verification response:

HTTP status: 200 OK
Smartsheet-Hook-Response: d78dd1d3-01ce-4481-81de-92b4f3aa5ab1 
{
  "smartsheetHookResponse": "d78dd1d3-01ce-4481-81de-92b4f3aa5ab1"
}

Currently, Parabola can only send back this response to a POST request when a flow is sucessfully triggered.

HTTP status: 200 OK
{
  "data": {
   "success":true
  }
}

3. How do you solve/workaround this problem today?
At the moment, there’s no resolution except for hitting the Parabola callback URL manually to trigger the workflow. To run the workflow on a schedule would be wasteful and costly, as it only needs to run periodically when there’s a change in a Smartsheet sheet column.