Audio service build with python and flask.
- Fill in .flaskenv file.
 - Create and setup firebase storage.
 - Download and setup elasticsearch.
 
    python -m venv [YOUR_ENV_NAME]
    [YOUR_ENV_NAME]/Scripts/activate    pip install -r requirements.txt    flask db upgrade # Apply database migrations
    flask insert-roles # Insert user roles to database
    flask create-indx Song # Create elasticsearch index for Song model
    flask translate compile # Compile all application languages    flask run