I want to upload image using http post in Laravel but it does not upload - it says failed to open stream: No such file or directory

Question

I make an api in Laravel. After I want to save data to this api using Laravel but I am not able to do this. When I am using Postman data is submitted, but when I use Laravel then they show different error every time.

Here is my Api:

public function store(Request $request)
{

   
        $file = $request->fileName->store('public/files/');

       
        $document = new Product();
        $document->code = $request->code;
        $document->category = $request->category;
        $document->name = $request->name;
        $document->price = $request->price;
        $document->image = $request->fileName->hashName();
        $document->description = $request->description;
         $document->save();

        return response()->json([
            "success" => true,
            "message" => "File successfully uploaded",
            "file" => $file
        ]);
    }

And this is my class file to upload image:

public function fileUpload()
{

  
    $contents = fopen($this->filename->hashName(), 'r');
        $response = Http::attach(
            'fileName', $contents)->post('http://127.0.0.1:8000/api/addimg',
            [
                'code' => $this->code,
                'category' => $this->category,
                'name' => $this->name,
                'price' => $this->price,
           
                'description' => $this->description

            ]
        );
     
        if ($response->json() == null) {
            session()->flash('message', 'Failed');
        } else {

            session()->flash('message', 'File Sucessfully Uploaded');
      
        }

}