pictureBlog/app/Http/Controllers/PostsController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Post;
use Intervention\Image\Facades\Image;

class PostsController extends Controller
{
	public function __construct()
	{
		$this->middleware('auth');
	}

    public function index()
    {
        $users = auth()->user()->following()->pluck('profiles.user_id');

        $posts = Post::whereIn('user_id', $users)->with('user')->latest()->get();

        return view('posts.index', compact('posts'));
    }

    public function create()
    {
    	return view('posts.create');
    }

    public function store()
    {
    	$data = request()->validate([
    		'caption' => 'required',
    		'image' => ['required', 'image'],
    	]);

    	$imagePath = request('image')->store('uploads', 'public');

    	$image = Image::make(public_path("storage/{$imagePath}"))->fit(1200, 1200);
    	$image->save();

    	auth()->user()->posts()->create([
    		'caption' => $data['caption'],
    		'image' => $imagePath,
    	]);

    	return redirect('/profile/' . auth()->user()->id);
    }

    public function show(Post $post) 
    {
    	return view('posts.show', compact('post'));
    }
}