/home/kueuepay/public_html/app/Http/Controllers/User/DashboardController.php

<?php
namespace App\Http\Controllers\User;

use App\Constants\PaymentGatewayConst;
use App\Models\Card;
use App\Models\UserWallet;
use App\Models\Transaction;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\Http\Helpers\Response;
use App\Models\User;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Validator;

class DashboardController extends Controller
{
    /**
     * Method for view index page
     */
    public function index(){
        $page_title             = "Dashboard";
        $user_wallet            = UserWallet::with(['currency'])->auth()->first();
        $card_payments          = Card::auth()->where('default',true)->first();
        $total_cards            = Card::auth()->count();
        $total_transactions     = Transaction::auth()->count();
        $transactions           = Transaction::with(['card_method','payment_gateway'])->auth()
                                    ->orderBy('id','desc')->latest()->take(3)->get();
        $add_money              = Transaction::auth()->where('type',PaymentGatewayConst::ADDMONEY)->count();
        $transfer_money         = Transaction::auth()->where('type',PaymentGatewayConst::TYPETRANSFERMONEY)->count();
        $card_payment           = Transaction::auth()->where('type',PaymentGatewayConst::CARD_PAYMENT)->count();
        return view('user.dashboard',compact(
            "page_title",
            "user_wallet",
            "card_payments",
            'total_cards',
            'transactions',
            'total_transactions',
            'add_money',
            'transfer_money',
            'card_payment'
        ));
    }
    public function getTransactionsByCard($id){
        $transactions = Transaction::auth()->where('card_id', $id)->latest()->get();
       
        return response()->json($transactions);
    }
    /**
     * Method for user logout method
     * @param Illuminate\Http\Request $request
     */
    public function logout(Request $request) {
        Auth::logout();
        $request->session()->invalidate();
        $request->session()->regenerateToken();
        return redirect()->route('user.login');
    }
    /**
     * Method for check wether user is valid or not
     * @param Illuminate\Http\Request $request
     */
    public function checkValidUser(Request $request){
        $validator      = Validator::make($request->all(),[
            'email'     => 'required|email'
        ]);
        if($validator->fails()) return Response::validation(['error' => $validator->errors()->all()]);
        $validated      = $validator->validate();
        $exist['data'] = User::where('email',$validated['email'])->first();

        $user = auth()->user();
        if(@$exist['data'] && $user->email == @$exist['data']->email){
            return response()->json(['own'=>__("Can't transfer to your own account.")]);
        }
        return response($exist);
    }
}

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Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

Use secure HTTPS connections for all API requests.
Implement robust error handling to handle potential issues gracefully.
Regularly update your integration to stay current with any API changes or enhancements.