json_example.yml

- hosts: localhost
  connection: local
  gather_facts: no
  tasks:
    - name: Read JSON file (can also be a variable).
      shell: cat files/example.json
      register: json

    - name: Get simple value.
      set_fact:
        simple_value: "{{ (json.stdout | from_json).example_simple.name }}"

    - name: Simple debug.
      debug:
        msg: "{{ simple_value }}"

    - name: Get foo value.
      set_fact:
        foo_value: "{{ (json.stdout | from_json).example_list | map(attribute='foo') | list }}"

    - name: Jinja list debug, printing out the list as comma seperated.
      debug:
        msg: "{% for each in foo_value %}{{ each }}{% if not loop.last %},{% endif %}{% endfor %}"