How can I set random limit?

[anilmwr]

I am working on a Flask app for fun and wanted to set random wait limits between subsequent requests.

I looked into the docs and source for a way to set random limits, but couldn't find any.
Is there a way by which I can set the retry after header and effective limit to a random number for each breach?

Something like below:

@app.route('/hello')
@limiter.limit('random')
def hello():
    return 'Hello World!'

[alisaifee]

There's nothing built in that would support this, but you could use your own after_request hook to populate the headers yourself. Something like this might work:

import random

from flask import Flask

from flask_limiter import Limiter
from flask_limiter.util import get_remote_address

app = Flask(__name__)
limiter = Limiter(
    get_remote_address, app=app, default_limits=["20/day"]
)


@app.after_request
def custom_headers(response):
    if limiter.current_limit:
        response.headers[
            "X-RateLimit-Reset"
        ] = limiter.current_limit.reset_at + random.randint(1, 10)
        response.headers["X-RateLimit-Remaining"] = max(
            0, limiter.current_limit.remaining - random.randint(1, 10)
        )

    return response


@app.route("/")
def root():
    return "42"


app.run()