Sanic

Sanic is both a framework and a web server.

hello world application: sever.py

from sanic import Sanic
from sanic.response import text
 
app = Sanic("My Hello, world app")
 
@app.get("/")
async def hello_world(request):
    return text("Hello, world.")\

Let’s save the above code as server.py.

And launch it by sanic server.app

Some Notes

Every request handler can either be sync (def hello_world) or async (async def hello_world).

Unless you have a clear reason for it, always go with async.

The request object is always the first argument of your handler.

• Other frameworks pass this around in a context variable to be imported.
• In the async world, this would not work so well and it is far easier (not to mention cleaner and more performant) to be explicit about it.
  • Explicit Call: You must use a response type.
    • MANY other frameworks allow you to have a return value like this: return "Hello, world." or this: return {"foo": "bar"}.
    • But, in order to do this implicit calling, somewhere in the chain needs to spend valuable time trying to determine what you meant.
    • So, at the expense of this ease, Sanic has decided to require an explicit call.

Related

References