JSON : Fetching a field value from a doctype

1

Hi,
I was using webhooks.
How to fetch the mobile number of leave approver in leave application as in JSON format.

Leave approver ->user->Employee ( connected with user ) ->Mobile Number.

{
"Employee Name":"{{doc.employee_name}}",
"Leave Application":"{{doc.name}}",
"From Date":"{{doc.from_date}}",
"End Date":"{{doc.to_date}}",
"Reason":"{{doc.description}}",
"Approver":"{{doc.leave_approver}}",
"Mob":" ??? "

}

Can anyone help on this !
2

Parsing could be the Jinja2 engine. The syntax looks like it.
There is no mention in the documentation concerning variables in Webhook.

Referring to this
https://frappeframework.com/docs/v14/user/en/guides/integration/webhooks

3

In Jinja2 it would be something like this

“{% set la = frappe.get_doc(“User”,doc.leave_approver) %} {{ la.cell_number }}”

4

is there a way to retrieve doctype info from erpnext from a local computer, fetching datas from doctypes, but notepad or visual code local in another computer? the embbed area of print format with jinja is not well converted to pdf, so I prefer do it with CSS and html. The CSS in jinja print format doesn’t always work.

And is the exact syntax for getting values from erpnext next doctypes, I assume there is a required connection login in the headers or something like that. What is the syntax?