how to add hosts to ansible inventory in dynamic

ansible-dynamic-hosts-digitalocean.yml

- hosts: localhost
  gather_facts: no
  vars:
    api_token: "${API_TOKEN_HERE}"
    limit: 25
  tasks:
    
    - uri:
        url: "https://api.digitalocean.com/v2/droplets?page=1&per_page={{ limit }}"
        return_content: yes
        headers:
          Content-Type: application/json
          Authorization: "Bearer {{ api_token }}"
      register: _result
    
    # - debug:
    #     msg: "{{ item.networks.v4[1].ip_address }}"
    #   with_items: "{{ _result.json.droplets }}"
    #   loop_control:
    #     label: "{{ item.name }}"
    
    - add_host:
        name: "{{ item.name|default(item.id) }}"
        ansible_host: "{{ item.networks.v4[1].ip_address|default(item.networks.v4[0].ip_address) }}"
        groups: digitalocean
        id: "{{ item.id }}"
        size: "{{ item.size_slug }}"
        ip: "{{ item.networks.v4[0].ip_address }}"
        region: "{{ item.region.slug }}"
      with_items: "{{ _result.json.droplets }}"
      loop_control:
        label: "{{ item.name }}"

- hosts: digitalocean
  gather_facts: no
  tasks:
    - debug:
        msg: "{{ inventory_hostname }} {{ id }} {{ ip }} {{ size }} {{ region }}"