Docker-compose django-python container communication

Question

So I am running a django node and a regular python script using docker-compose. The python script regularly asks django backend for data. However, when I docker-compose up I get this error:

requests.exceptions.ConnectionError: HTTPConnectionPool(host='0.0.0.0', port=8080): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f3d6e45dc10>: Failed to establish a new connection: [Errno 111] Connection refused'))

Here is my docker-compose.yaml:

version: "3"
services:
  backend:
    command: >
      sh -c "python3 manage.py wait_for_db && 
             python3 manage.py migrate &&
             python3 manage.py runserver 0.0.0.0:8080"
    build:
      context: ./backend
      dockerfile: Dockerfile
    volumes:
      - ./backend:/backend
    ports:
      - "8080:8080"

  monitor:
    command: >
      sh -c "python3 main.py"
    build:
      context: ./monitor
      dockerfile: Dockerfile
    volumes:
      - ./monitor:/monitor
    ports:
      - "8082:8082"

from monitor I do:

response = requests.get(url = 'http://0.0.0.0:8080/')

What is a correct way to communicate between nodes in docker?

P.S Cors origins are allowed in django