GoHighLevel - Inbound Webhook

Description

We use GoHighLevel for our CRM. We are about to sign up with a leads company that has asked for the following information;
Here is the API information we need please?What is the URL we need to submit the lead information to?What is the HTTP request method we should be using? GET, POST, PUT?What is the request body type? JSON, XML, Other.
I understand that GHL uses an inbound webhook, but I simply don't have the time to learn how to do it.
Essentially, we're looking to have leads flow in, which will then trigger a workflow within GHL.
Any help would be greatly appreciated.
All the best
Steve