CODE EXAMPLE FOR PYTHON

Add PostgreSQL Settings in Django

# Just after the default DATABASE configuration add this in settings.py

POSTGRES_DB = os.environ.get("POSTGRES_DB")
POSTGRES_PASSWORD = os.environ.get("POSTGRES_PASSWORD")
POSTGRES_USER = os.environ.get("POSTGRES_USER")
POSTGRES_HOST = os.environ.get("POSTGRES_HOST")
POSTGRES_PORT = os.environ.get("POSTGRES_PORT")

POSTGRES_READY = (
    POSTGRES_DB is not None
    and POSTGRES_PASSWORD is not None
    and POSTGRES_USER is not None
    and POSTGRES_HOST is not None
    and POSTGRES_PORT is not None
)

if POSTGRES_READY:
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.postgresql",
            "NAME": POSTGRES_DB,
            "USER": POSTGRES_USER,
            "PASSWORD": POSTGRES_PASSWORD,
            "HOST": POSTGRES_HOST,
            "PORT": POSTGRES_PORT,
        }
    }