The key aspects are: Initialize each user's rate limiter with different max requests and refill rates. Before making a request, check if there are available tokens If not, sleep based on refill time. Deduct a token for each request Refill tokens periodically based on refill rate. This allows allocating different capacity to different users while…

stripe-api-limiter-example.py

# USAGE EXAMPLES
# User 1 request 
# curl -H "X-User-ID: user1" -d "..." http://localhost:5000/charge

# User 2 request
# curl -H "X-User-ID: user2" -d "..." http://localhost:5000/charge 


from flask import Flask, request, jsonify
import stripe
import time

app = Flask(__name__)

# Rate limiter class from previous example

user1_rate_limiter = RateLimiter(10, 10)
user2_rate_limiter = RateLimiter(5, 5) 

@app.route('/charge', methods=['POST'])  
def create_charge():
    user_id = request.headers.get('X-User-ID')
    
    if user_id == 'user1':
        rate_limiter = user1_rate_limiter
    elif user_id == 'user2':
        rate_limiter = user2_rate_limiter
    else:
        return jsonify({'error': 'Invalid user'}), 403
    
    try:
        response = rate_limiter.make_request()
        return jsonify(response)
    except stripe.error.RateLimitError:
        return jsonify({'error': 'Too many requests'}), 429

if __name__ == '__main__':
    app.run()