Sanic Application

原文地址：https://sanicframework.org/en/guide/basics/app.html

# path/to/server.py
from sanic import Sanic
app = Sanic("My Hello, world app")

# Raises a warning as deprecated feature in 21.3
app = Sanic("MyApp")
app.db = Database()

# Correct way to attach objects to the application
app = Sanic("MyApp")
app.ctx.db = Database()

# ./path/to/server.py
from sanic import Sanic
app = Sanic("my_awesome_server")

# ./path/to/somewhere_else.py
from sanic import Sanic
app = Sanic.get_app("my_awesome_server")

app = Sanic.get_app(
    "non-existing",
    force_create=True,
)

Sanic("My only app")
app = Sanic.get_app()

app = Sanic('myapp')
app.config.DB_NAME = 'appdb'
app.config['DB_USER'] = 'appuser'
db_settings = {
    'DB_HOST': 'localhost',
    'DB_NAME': 'appdb',
    'DB_USER': 'appuser'
}
app.config.update(db_settings)

app.config.GOOD = "yay!"
app.config.bad = "boo"