codesnips

ttl

typescript 
type Loader<T> = () => Promise<T>;

interface Entry<T> {
  value: T;
  expiresAt: number;
}

TTL Cache With In-Flight Request Deduplication for Async Calls

caching async deduplication
by codesnips 4 tabs
python 
import asyncio
import time
from dataclasses import dataclass
from typing import Any, Dict

In-Memory TTL Cache for FastAPI Endpoints With a Cache-Key Builder Dependency

fastapi caching ttl
by codesnips 3 tabs
ruby 
class Cart < ApplicationRecord
  TTL = 30.minutes

  has_many :line_items, dependent: :destroy

  enum status: { active: 0, expired: 1, checked_out: 2 }

Expiring Idle Shopping Carts with a TTL Check and a Sweeper Job in Rails

rails background-jobs sidekiq
by codesnips 3 tabs
java 
import com.github.benmanes.caffeine.cache.CacheLoader;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.cache.LoadingCache;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

Time-Based Caffeine Cache for Expensive Currency Rate Lookups in Spring

caffeine caching spring
by codesnips 3 tabs
ruby 
require "securerandom"

class RedisMutex
  class LockError < StandardError; end

  UNLOCK_SCRIPT = <<~LUA.freeze

Redis-Based Distributed Mutex (with TTL)

rails redis concurrency
by codesnips 2 tabs
go 
package httpcache

import (
	"strconv"
	"strings"
	"time"

Parsing Cache-Control max-age for a TTL In-Memory Cache in Go

go caching http
by codesnips 3 tabs
python 
import functools
import threading
import time
from collections import OrderedDict

Custom TTL + LRU Cache Decorator for Expensive Python Computations

python caching lru
by codesnips 2 tabs