Check name availability using ajax

You can create an additional route in Laravel and you can add a function in your controller for that route. Your function might look like this

public function checkName(Request $request)
{
    // This will either return a full Product object or NULL
    return Product::where('name', '=', $request->get('name'))->first();
}

You can now check for null in the ajax response

You need to move your checking.php into a method in your controller. Then you need to add a route so that the check will be run

Route::group(['prefix'=>'admin','middleware'=>['auth','validIp']],function(){
    Route::get('product/check', 'Product\ProductController@check');
    Route::resource('product', 'Product\ProductController'); 
});

class ProductController extends Controller
{
    // ...

    public function check($email)
    {
        if (Product::where('email', $email)->first()) {
            return '<font color="red" style="margin-left:105px;"><STRONG>'.$email.'</STRONG> is not available.</font>';
        }

        return 'OK';
    }

    // ...
}

@bobbybouwmann -I have followed your steps

made route like this

Route::group(['prefix'=>'admin','middleware'=>['auth','validIp']],function(){
Route::get('name','Product\ProductController@checkName');

//....
});

public function checkName(Request $request)
{
    //iam here
    // This will either return a full Product object or NULL
    return Product::where('name', '=', $request->get('name'))->first();
}

But i have not got any thing in url http://localhost:8000/admin/name,whit blank page i got

You need to make a post request from your ajax call, something like this

// routes.php
Route::post('product/name', ['Product\ProductController@checkName');

// JavaScript
$.ajax({
    method: 'POST',
    url: '/product/name',
    data: {
        name: $('input').val() // Get the value of the input
    }
}).done(function (response) {
    // Check if response is null or not
    // Based on that continue the process or show a message or something
});

@Corez64 i got error Missing argument 1 for App\Http\Controllers\Product\ProductController::check()

i have to get $name from user input not by route something like this

public function store(Request $request){
$product=new Product;
$name=$request->get('name');
//............
}

public function check(Request $request){

how can i get above $name here,in this function
}

Show your code as you have it now, please

@bobbybouwmann my js is same as above i have mention and i have change url:/product/name as you have written above and controller is

 public function checkName(Request $request)
{
 
    return product::where('name', '=', $request->get('name'))->first();
}

Did you import the class path of the Request class?

use Illuminate\Http\Request;

@bobbybouwmann yes i have used use Illuminate\Http\Request;

Should work fine, what do you get when you do this?

public function checkName(Request $request)
{
    dd($request->all();
}

Also, you do have this function in your controller right?

i got[] on doing dd($request->all(); i have not got anything

You don't post anything. You need to get the data from the input field and and set that in the post request with ajax like I showed you before

data: {
    name: (Grab here the value from the input)
}

@bobbybouwmann it is possible to get Request $request of one Controller of certain function to another or same controller of another function as below.How?

//say this function has a form in view with input field text and name=name inside<form>...</form>
public function store(Request $request){
$product=new Product;
$name=$request->get('name');
//............
}

//This function  checkName doesnot have a form,can i get above request here ,how??
public function checkName(Request $request){
dd($request->get('name');
how can i get above $name here,in this function
}

You can simply do this

public function store(Request $request) {
    $this->checkName($name);
}

public function checkName($name) {
    dd($name);
}

public function checkName($name) $name should come from route yes or no?

It depends on your needs.. You clearly don't know the basics of Laravel or jQuery (ajax requests). I suggest you to learn those first before you continue!