The HTTP Request postfunction lets you make a parametrized HTTP Request in a transition.
Fields
Path: This is the URL that will be called. Example:
https://mycompany/confluence/rest/api/content/
Method: A selector of HTTP methods. Available options: GET, POST, PUT, DELETE.
Headers:
Add header button: Click it to add a new empty header.
Header name - Header value: The name and value of one header. The header name can’t be empty.
Remove button: Click it to remove the corresponding header.
Request body: The body of the request.
You can use Smart Values in the Path, Header name, Header value and Request body inputs.