Creating GCP Resource Hierarchy in one run

Terraform Providers Google
1

Hello,

I want to create the following GCP folders and projects in one run:

========= The yaml file(resources.yaml) : ===========

folders:
  - display_name: "Folder1"
    parent: "organizations/ORGANIZATION-NUMBER"
    projects:
        - project11
        - project12
  - display_name: "Folder2"
    parent: "folders/Folder1"
    projects:
        - project21

===============================================

The bare minimum code could be as below:

========= main.tf ===============================

locals {
  config                = yamldecode(file("./resources.yaml"))
  folders               = { for folder in lookup(local.config, "folders", []) : folder.display_name => folder }
}

resource "google_folder" "folder-structure" {
  for_each = local.folders
  display_name = each.key
  parent = lookup(each.value, "parent")
}

===============================================

for “parent” parameter, either organization/ORGANIZATION_ID
or folders/FORDER_ID is needed. However, it is not possible to provide the folder ID for “Folder1” before creating it.

To me it seems like a recursion which is not supported in terraform?

Is there any workaround/solution to implement such senario in one run?

Thank you in advance.