Terraform - passing output of other resources during execution

Last Updated: Sep 10, 2025

Overview

The customer needs to create a client grant with information that is obtained from during the same deployment, in this case the client_id of a client application that is created on the same run

resource "auth0_client_grant" "my_client_grant" {
client_id = "<client_id>"
audience = "<audience>"
scope = []
}

Symptoms
If they don't pass the clientID hardcoded, the run fails as they don't know how to pass it

Applies To

Terraform

Cause

This happens because they don't know how to handle resource deployment outputs, or module outputs in terraform

Solution

When provisioning the a resource, they can call its output values during execution. For instance, for resource:

"auth0_client" "my_client" {
//your code for this client
}

you can call a specific value obtained during execution in the following way:

<rousource_provider>.<resource_name>.<TheRequiredAttribute>

In this case, it would be something similar to this:

auth0_client.my_client.client_id

However, it would be a good practice to suggest the customer to look at both Terraform Outputs, and Terraform Modules so their terraform implementation could be easy to maintain and reuse in the future (having said that, that falls into Hashicorp's scope rather than Auth0 product configuration.
Outputs: https://www.terraform.io/language/values/outputs
Modules: https://www.terraform.io/language/modules/syntax