[proposal] Add support for throttling per route

[jamesls]

API Gateway has various forms of API throttling. This proposal adds support for throttling at the routing level. This allows you to specify a rate and burst limit per @app.route.

Similar to CORS and authorizers, there will be a new param, throttle, that takes an instance of ThrottleConfig:

@app.route('/', throttle=ThrottleConfig(rate=10, burst=15))
def index(): pass

ThrottleConfig accepts two arguments, rate and burst:

class ThrottleConfig(object):
    def __init__(self, rate: int, burst: int): pass

The rate and burst params map to the corresponding concepts described in the API Gateway throttling docs

[kyleknap]

It might be good to mention that we could potentially attach the ThrottleConfig to the app.api as well to represent the stage-wide throttle configuration. Otherwise, :ship:

[atyshka]

3 years later... any updates on this? Very useful feature

[isohrab]

4 years later... any updates on this? Very useful feature

[tedmiston]

Would be awesome to have

[dhensen]

We are getting this when?

[denpufa]

5 years later... any updates on this? very useful feature

[nqbao]

6 years later.... i guess it never comes