Laravel Request Response Middleware Validation Basics

Definisi

Request membungkus HTTP input ($r->input(), $r->validate(), $r->file()). Response bisa view(), redirect(), response()->json(), atau response()->download(). Middleware memproses request sebelum/sesudah controller (auth, cors, log).

Kapan dipakai

Setiap handler butuh request input & response. Middleware untuk cross-cutting (auth, throttle).

Cara kerja

php

public function store(Request $r) {
    $data = $r->validate([
        'title' => 'required|max:255',
        'body' =>