codehub_/app/Http/Controllers/CategoryController.php

<?php

namespace App\Http\Controllers;

use App\Models\Category;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;

class CategoryController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(): JsonResponse
    {
        $categories = Category::all();
        return response()->json($categories);
    }

    /**
     * Show the form for creating a new resource.
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request): JsonResponse
    {
        $request->validate([
            'subjectTitle' => 'required|string|max:255|unique:categories,subjectTitle',
            'description' => 'nullable|string',
        ]);

        $category = Category::create([
            'subject_title' => $request->subjectTitle,
            'description' => $request->description,
        ]);

        return response()->json([
            'message' => 'Subject category added!',
            'category' => $category,
        ]);
    }

    /**
     * Display the specified resource.
     */
    public function show(Category $category): JsonResponse
    {
        return response()->json($category);
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(Category $category)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Category $category)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Category $category)
    {
        //
    }
}