How to have multiple values in false condition vs one in true condition?

Terraform
1

The callback_urls under aws_cognito_user_pool_client is List of allowed callback URLs for the identity providers.

So, here for non-prod and “Techno” application, I need http://localhost:3000/auth as well along with the other one created by values of the var. I added the square brackets for all values as not doing it gave me this error : The true and false result expressions must have consistent types. But with adding the square brackets, I am getting this error:

Inappropriate value for attribute callback_urls: element 0: string required."

callback_urls = [var.target_infra == "prod" ? (var.application_name == "techno" ? ["https://${local.domain_name}.${local.pe_subdomain_name[var.target_infra]}/auth"] : ["https://${local.domain_name}.${local.pe_subdomain_name[var.target_infra]}/setup/auth"]) : (var.application_name == "techno" ? ["https://${local.domain_name}.${var.environment}.${local.pe_subdomain_name[var.target_infra]}/auth", "http://localhost:3000/auth"] : ["https://${local.domain_name}.${var.environment}.${local.pe_subdomain_name[var.target_infra]}/setup/auth"])]

Is there a way to achieve this with a possibly cleaner code?

2

ChatGPT to the rescue! :slight_smile:

 callback_urls = concat(
  var.target_infra == "prod" ?
    (var.application_name == "techno" ?
      ["https://${local.domain_name}.${local.pe_subdomain_name[var.target_infra]}/auth"] :
      ["https://${local.domain_name}.${local.pe_subdomain_name[var.target_infra]}/setup/auth"]
    ) :
    (var.application_name == "techno" ?
      [
        "https://${local.domain_name}.${var.environment}.${local.pe_subdomain_name[var.target_infra]}/auth",
        "http://localhost:3000/auth"
      ] :
      ["https://${local.domain_name}.${var.environment}.${local.pe_subdomain_name[var.target_infra]}/setup/auth"]
    )
  )