How to get image file data to controller using jquery ajax laravel 5.4

I am using Laravel 5.4 and i want to upload file or image using ajax but it's give me an error.

in javascript

var file_data = $("#upload-book-img")[0].files[0];   
var form_data = new FormData();     
form_data.append("file", file_data) // Appending parameter named file with properties of file_field to form_data
form_data.append("ecat_id", ecat_id) // Adding extra parameters to form_data
form_data.append("lang_id", lang_id) // Adding extra parameters to form_data
form_data.append("post_content", post_content) // Adding extra parameters to form_data              
form_data.append("_token", _token) // Adding extra parameters to form_data              


In php controller

public function insertNewPost(Request $request)
{
    $data = $request->file; 
    
    $image_type = $request->file->getClientOriginalExtension(); 
    
    $profilePath = env('EBITES_UPLOAD_IMAGE');
    $img = $this->createunique_image_id('1').'.'. $image_type;
    $path = $profilePath.$img;
    Image::make($data)->save($path);   
    
    
    dd($path);
}