Vue / Laravel: How to validate files uploaded from the frontend?

I have an image uploader on my Vue app that takes multiple files. I want to ensure they are images and of a certain size and if not, obviously don’t upload the files and have the frontend display the error. Right now, the route it hits in the controller loos like this:

   public function uploadAssets(UploadAssetsFormRequest $request)
{
if ($request->hasFile('file')) {
$files = $request->file('file');
$stack = [];
foreach ($files as $file) {
$fileName = Storage::put('/check/', file_get_contents($file->getRealPath()), ['visibility' => 'public']);
array_push($stack, $fileName);
}
return response()->json($stack);
}
}

My Form Request is below and has the validation but I don’t know how to apply that in the controller.

UploadAssetsFormRequest

<?php

namespace AppHttpRequestsAdmin;

use IlluminateFoundationHttpFormRequest;

class UploadAssetsFormRequest extends FormRequest
{

public function authorize()
{
return true;
}

public function rules()
{
return [
'files.*' => 'required|image|max:1000',
];
}

public function messages()
{
return [
'files.*.max' => 'The image is too large',
'files.*.image' => 'Only image files are allowed.',
];
}
}

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