Run

• You need to create a directory for mongodb (/opt/mongodb by default) and chown to your user (or remove the volume attribute for mongodb in docker-compose.yml)
• docker-compose up
• localhost:5000/oauth2callback
• Connect to the flask node docker exec -it #container_id /bin/bash
• cd ..
• python
• from app.tasks import fetch_messages
• fetch_messages.delay(#yourclientid)