codesnips

sliding-window

typescript 
import { Injectable } from '@nestjs/common';

export interface RateLimitResult {
  allowed: boolean;
  remaining: number;
  limit: number;

Sliding-Window Webhook Rate Limiting with a NestJS Interceptor and In-Memory Counter

typescript nestjs rate-limiting
by codesnips 3 tabs
python 
import time
import threading
from collections import deque, defaultdict


class SlidingWindowLimiter:

Sliding-Window Rate Limiting in Flask With a Custom Decorator and In-Memory Buckets

flask rate-limiting decorators
by codesnips 3 tabs
lua 
-- KEYS[1] = current window key, KEYS[2] = previous window key
-- ARGV: limit, window_ms, elapsed_ms
local limit = tonumber(ARGV[1])
local window = tonumber(ARGV[2])
local elapsed = tonumber(ARGV[3])

Sliding-Window Rate Limiting for Express Routes Backed by Redis

express redis rate-limiting
by codesnips 4 tabs
ruby 
require "securerandom"
require "digest"

class SlidingWindowLimiter
  Result = Struct.new(:allowed, :count, :remaining)

Sliding-Window API Rate Limiting with Rack Middleware and Redis

ruby rack redis
by codesnips 4 tabs
typescript 
import { readFileSync } from 'fs';
import { join } from 'path';
import type { Redis } from 'ioredis';
import { randomUUID } from 'crypto';

export interface LimitResult {

Rate limiting by IP + user (Express)

security express redis
by codesnips 4 tabs
php 
<?php

declare(strict_types=1);

namespace App\Security;

PHP Login Rate Limiting with a Sliding-Window Throttle Middleware

php rate-limiting middleware
by codesnips 3 tabs
ruby 
class SlidingWindowLimiter
  Result = Struct.new(:allowed, :count, :limit, :window_ms, keyword_init: true)

  SCRIPT = <<~LUA.freeze
    local key = KEYS[1]
    local now = tonumber(ARGV[1])

Rate Limiting with Redis + Increment Expiry

rails redis reliability
by codesnips 3 tabs