simple-login/app/extensions.py

from flask import request
from flask_limiter import Limiter
from flask_limiter.util import get_remote_address
from flask_login import LoginManager
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()
login_manager = LoginManager()
login_manager.session_protection = "strong"
migrate = Migrate(db=db)

# Setup rate limit facility
limiter = Limiter(key_func=get_remote_address)


@limiter.request_filter
def ip_whitelist():
    # Uncomment line to test rate limit in dev environment
    # return False
    # No limit for local development
    return request.remote_addr == "127.0.0.1"