Default Routing for Single Page Application

To create single page application, default_route and multiple routing help you.

Default route

api = Api(default_route="/default")

@api.route("/default")
class Default:
    pass

@api.route("/spam")
class Spam:
    pass

In this example, a request to /spam gets a response from Spam , and the other requests include /default get responses from Default , so any users get not 404 responses.

Multiple routing for allowed patterns

A soft 404 is a bad practice. Routing allowed patterns to a view removes worry of the problem.

api = Api()

@api.route("/need/{converter:func}", converters={"func": lambda x: x*2} )
@api.route("/api/more/longer/path")
@api.route("/api/{foo}")
@api.route("/")
class Index:
    async def on_get(self, req, resp):
        ...

api returns Index to matched requests, and others get 404 .