codesnips
java 
package com.example.feed;

import java.nio.charset.StandardCharsets;
import java.time.Instant;
import java.util.Base64;

Keyset (Cursor) Pagination with Spring Data JPA and Base64 Cursors

spring spring-data jpa
by codesnips 3 tabs
php 
<?php

namespace App\Services;

use App\Mail\VerifyEmail;
use App\Models\ContactEmail;

Signed URL Email Verification in Laravel Without the Built-in MustVerifyEmail Contract

laravel php signed-urls
by codesnips 4 tabs
rust 
use std::collections::HashSet;
use std::hash::Hash;

pub struct DedupByKey<I, K, F> {
    inner: I,
    key_fn: F,

Order-Preserving Stream Deduplication by Key in Rust with a HashSet Guard

rust streams deduplication
by codesnips 3 tabs
javascript 
const jwt = require('jsonwebtoken');

const ACCESS_SECRET = process.env.JWT_ACCESS_SECRET;
const REFRESH_SECRET = process.env.JWT_REFRESH_SECRET;
const ISSUER = 'api.example.com';
const AUDIENCE = 'example-web';

Sign and Verify JWT Access Tokens in Express Auth Middleware

express jwt authentication
by codesnips 3 tabs
go 
package pipeline

import "context"

func generate(ctx context.Context, nums ...int) <-chan int {
	out := make(chan int)

Fan-Out/Fan-In Pipeline With Channels and Context Cancellation in Go

go concurrency channels
by codesnips 3 tabs
javascript 
function createReadiness() {
  let ready = true;

  function markUnready() {
    ready = false;
  }

Graceful HTTP Server Shutdown on SIGTERM With In-Flight Request Draining in Node.js

nodejs http graceful-shutdown
by codesnips 3 tabs
typescript 
import {
  WebSocketGateway,
  WebSocketServer,
  SubscribeMessage,
  OnGatewayConnection,
  OnGatewayDisconnect,

Room-Based Live Notifications over a NestJS WebSocket Gateway

nestjs websockets socket-io
by codesnips 4 tabs
ruby 
class ApplicationPolicy
  attr_reader :user, :record

  def initialize(user, record)
    @user = user
    @record = record

Authorizing Controller Actions with Pundit Policy Objects in Rails

rails pundit authorization
by codesnips 3 tabs
python 
import magic
from django import forms
from django.core.exceptions import ValidationError
from django.template.defaultfilters import filesizeformat

Validating Upload Size and MIME Type in a Custom Django Form Field

django forms file-upload
by codesnips 3 tabs
javascript 
import { useEffect, useState } from "react";

export function useDebouncedValue(value, delay = 300) {
  const [debounced, setDebounced] = useState(value);

  useEffect(() => {

Debounced Search Input in React with a Reusable useDebouncedValue Hook

react hooks debounce
by codesnips 3 tabs
php 
<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

Cursor Pagination in Laravel with API Resources and Encoded Cursors

laravel pagination cursor-pagination
by codesnips 3 tabs
ruby 
class CounterFlushJob
  include Sidekiq::Job
  sidekiq_options queue: :counters, retry: 3

  def perform
    CounterBuffer.flush_all.each do |field, delta|

Coalesced Counter Cache with Redis Buffering and Nightly Reconciliation in Rails

rails counter-cache redis
by codesnips 4 tabs