Best way to create and calling variable

Terraform
1

I create module for google cloud load balancer, and confused how to simplified this resource into variable. the resource like this

resource "google_compute_url_map" "urlmap" {
  name        = "urlmap"
  description = "a description"

  default_service = google_compute_backend_bucket.static.id

  host_rule {
    hosts        = ["mysite.com"]
    path_matcher = "mysite"
  }

  host_rule {
    hosts        = ["myothersite.com"]
    path_matcher = "otherpaths"
  }

  path_matcher {
    name            = "mysite"
    default_service = google_compute_backend_bucket.static.id

    path_rule {
      paths   = ["/home"]
      service = google_compute_backend_bucket.static.id
    }

    path_rule {
      paths   = ["/login"]
      service = google_compute_backend_service.login.id
    }

    path_rule {
      paths   = ["/static"]
      service = google_compute_backend_bucket.static.id
    }
  }

  path_matcher {
    name            = "otherpaths"
    default_service = google_compute_backend_bucket.static.id
  }

I want to move host_rule, path_matcher, and path_rule, become variable…
is it correct if i make variable like this:

variable "path_mathcer" {
  type  = list(object({
    name    = string\
    default_service = (i confused what must be fill in here)
  }

  {  path_rule = object{
      path = list
      service = (i confused what must be fill in here)
    }    
  }))
}

variable "host_rules" {
  type    = list(object({
    hosts = list
    path_matcher = string
  }))
}

and how i call it in resource block?
for path_rule it can be null or many

Thank you