codesnips
typescript 
export interface Todo {
  id: string;
  title: string;
  done: boolean;
}

Optimistic Todo Toggling in React with Rollback via useReducer

javascript typescript react
by codesnips 3 tabs
go 
package scheduler

import (
	"context"
	"log"
	"sync"

Graceful Cron-Style Scheduler in Go With Ticker and Context Cancellation

scheduler ticker context
by codesnips 3 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 { Injectable, signal, computed } from '@angular/core';

export interface CurrentUser {
  id: string;
  email: string;
  roles: string[];

Guarding a Lazy-Loaded Angular Admin Route with a Functional CanActivate Role Check

angular routing lazy-loading
by codesnips 3 tabs
typescript 
import { createContext } from "react";

export type ToastVariant = "info" | "success" | "error";

export interface Toast {
  id: string;

Toast Notification Queue with a useToast Hook and Context Provider in React

react hooks context
by codesnips 4 tabs
php 
<?php

namespace App\Http\Requests;

use Illuminate\Contracts\Validation\Validator;
use Illuminate\Foundation\Http\FormRequest;

Laravel Form Request Validation for Signup With Custom Rules and Error Responses

laravel validation form-request
by codesnips 3 tabs
javascript 
const { EventEmitter } = require('events');

class NotificationBus extends EventEmitter {
  constructor(bufferSize = 100) {
    super();
    this.setMaxListeners(0);

Server-Sent Events for Live Notifications with a Reconnectable EventSource Hook

sse server-sent-events eventsource
by codesnips 3 tabs
php 
<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

Generating URL Slugs from Titles with a Laravel Model Observer

laravel eloquent observers
by codesnips 4 tabs
python 
from django.db import models
from django.utils import timezone


class SoftDeleteQuerySet(models.QuerySet):
    def delete(self):

Soft-Delete in Django with a Custom Manager and QuerySet

django orm soft-delete
by codesnips 3 tabs
ruby 
class ReportsController < ApplicationController
  def monthly_sales
    year = params.fetch(:year, Date.current.year).to_i
    rows = Order.monthly_sales(year: year)
    @report = MonthlySalesReport.new(rows, year: year)

Aggregate Monthly Sales Reports in Rails with group_by SQL and a Presenter

rails postgres reporting
by codesnips 3 tabs
ruby 
class User < ApplicationRecord
  has_secure_password

  RESET_TOKEN_TTL = 30.minutes

  def self.reset_verifier

Signed Password Reset Tokens with ActiveSupport::MessageVerifier in Rails

rails authentication password-reset
by codesnips 3 tabs
python 
from dataclasses import dataclass


class ConfigError(Exception):
    pass

Typed Argparse Subcommands with Dataclasses and Handler Dispatch

argparse cli dataclasses
by codesnips 3 tabs