Ansible Tower API OAuth Tokens

https://docs.ansible.com/ansible-tower/latest/html/administration/oauth2_token_auth.html?extIdCarryOver=true&sc_cid=701f2000001OH7YAAW

9.3.1. Application using authorization code grant type

This document seems to be what I am looking for, but there is missing information. I need help to get moving in the right direction. I have already setup an Application in Tower using Authorization Code grant type. I have my client_id and client_secret.

I need to issue a GET against the authorize endpoint, providing the response_type (token), client_id (I have), redirect_urls, and scope (read)

example:

curl -X GET -d "response_type=token&client_id=XXXXX&scope=read&redirect_urls=https://mytower/api/v2" https://mytower/api/o/authorize

When I do this, I only get a 301 Moved Permanently response.

What am I doing wrong? Ultimately, I need to open up API access to an external application that is not associated with any particular user ID. I need this external application to be able to interact with Ansible Tower to start Jobs, passing parameters through Extra Vars.