exchange/app/Http/Controllers/Auth/ResetPasswordController.php

<?php

namespace App\Http\Controllers\Auth;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\ResetsPasswords;

class ResetPasswordController extends Controller
{
    use ResetsPasswords;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest');
    }

    /**
     * Get the response for a successful password reset.
     *
     * @param  string  $response
     * @return \Illuminate\Http\RedirectResponse
     */
    protected function sendResetResponse($response)
    {
        return ['status' => trans($response)];
    }

    /**
     * Get the response for a failed password reset.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  string  $response
     * @return \Illuminate\Http\RedirectResponse
     */
    protected function sendResetFailedResponse(Request $request, $response)
    {
        return response()->json(['email' => trans($response)], 400);
    }

    protected function showResetForm(){
        return view('index');
    }
}