codesnips
rust 
use base64::{engine::general_purpose::URL_SAFE_NO_PAD, Engine};
use serde::{Deserialize, Serialize};
use time::OffsetDateTime;
use uuid::Uuid;

#[derive(Debug, Clone, Serialize, Deserialize)]

Cursor-Paginated Streaming REST Endpoint in Axum with Keyset Pagination

axum rust pagination
by codesnips 3 tabs
rust 
use serde::{Deserialize, Deserializer};
use time::OffsetDateTime;

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct UserProfile {

Deserializing Optional and Renamed JSON API Fields with Serde in Rust

rust serde serde-json
by codesnips 2 tabs
javascript 
export const initialState = (steps, initialData = {}) => ({
  steps,
  stepIndex: 0,
  data: initialData,
  errors: {},
});

Multi-Step Form Wizard in React With a useReducer State Machine

react hooks usereducer
by codesnips 4 tabs
javascript 
class TokenBucket {
  constructor(capacity, refillRatePerSec) {
    this.capacity = capacity;
    this.refillRate = refillRatePerSec;
    this.tokens = capacity;
    this.lastRefill = Date.now();

Token Bucket Rate Limiter as Express Middleware

express rate-limiting token-bucket
by codesnips 3 tabs
php 
<?php

namespace App\Models;

use App\Notifications\VerifyEmailNotification;
use Illuminate\Contracts\Auth\MustVerifyEmail;

Signed Email-Verification Links with Custom Laravel Notification and Signed Routes

laravel signed-urls email-verification
by codesnips 4 tabs
python 
from django.db import models
from django.utils.text import slugify


class Article(models.Model):
    title = models.CharField(max_length=200)

Auto-Generate Unique Slugs in Django with a pre_save Signal and Model Method

django signals slugs
by codesnips 3 tabs
php 
<?php

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

Recording an Audit Trail of Model Changes with a Laravel Observer

laravel eloquent observers
by codesnips 4 tabs
php 
<?php

namespace App\Payment;

use Symfony\Component\DependencyInjection\Attribute\AutoconfigureTag;

Collect Tagged Payment Gateways with a Symfony Compiler Pass and Service Locator

symfony dependency-injection compiler-pass
by codesnips 4 tabs
java 
package com.example.api.error;

import com.fasterxml.jackson.annotation.JsonInclude;

import java.time.Instant;
import java.util.List;

Structured Error Responses with @RestControllerAdvice in Spring Boot

spring-boot rest-api exception-handling
by codesnips 3 tabs
ruby 
class DownloadsController < ApplicationController
  before_action :authenticate_user!

  def show
    report = current_account.reports.find(params[:report_id])
    authorize! :download, report

Signed, Expiring S3 Download URLs for Active Storage Attachments in Rails

rails active-storage s3
by codesnips 4 tabs
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