Here we will learn how to send real-time notifications using Pusher + Laravel.

First of all, you need to create an account in the Pusher and get API keys from there.

Setting up your Laravel application

Now we need to install Pusher SDK, you can install it by the composer using the below command,

composer require pusher/pusher-php-server

After the composer is done, we will need to configure Laravel to use Pusher as its broadcast driver, update the below variables in the .env file,

PUSHER_APP_ID=123456
BROADCAST_DRIVER=pusher

// Get the API Keys from your pusher dashboard

PUSHER_APP_ID=XXXXX
PUSHER_APP_KEY=XXXXXXX
PUSHER_APP_SECRET=XXXXXXX

Open config/app.phpand uncomment the "App\Providers\BroadcastServiceProvider::class".

Now we need an event that will broadcast to the pusher driver. Let's create a NotificationEvent.

php artisan make:event NotificationEvent

This command will create a below file

namespace App\Events;
use Illuminate\Queue\SerializesModels;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
class NotificationEvent implements ShouldBroadcast
{
    use Dispatchable, InteractsWithSockets, SerializesModels;
    public $username;
    public $message;
    public function __construct($username)
    {
        $this->username = $username;
        $this->message  = "{$username} send you a notification";
    }
    public function broadcastOn()
    {
        //it is a broadcasting channel you need to add this route in channels.php file
        return ['notification-send'];
    }
}

Add broadcasting route in channels.php file

Broadcast::channel('notification-send', function ($user) {
    return true;
}); 

Cache Event at Javascript Side

// Initiate the Pusher JS library

var pusher = new Pusher('YOUR_API_KEY', {
    encrypted: true
});

// Subscribe to the channel we used in our Laravel Event

var channel = pusher.subscribe('notification-send');

channel.bind('App\\Events\\NotificationEvent', function(data) {
    // this is called when the event notification is received...
});

Testing and Setup

Using the below route we can send a notification.

Route::get('test', function () {
    event(new App\Events\NotificationEvent('Monika'));
    return "Event has been sent!";
});

Stripe Configuration with Laravel

composer require stripe/stripe-php

STRIPE_KEY=your-stripe-key
STRIPE_SECRET=your-stripe-secret

Publish Migrations Files From Stripe

php artisan vendor:publish --tag="cashier-migrations" 

php artisan migrate 

Setup Stripe Controller

php artisan make:controller StripeController

namespace App\Http\Controllers;
use Illuminate\Contracts\View\Factory;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Stripe\Checkout\Session;
use Stripe\Exception\ApiErrorException;
/**
 * Class FeaturedCompanySubscriptionController
 */
class StripeControlle extends AppBaseController
{
    public function createSession(Request $request)
    {
        setStripeApiKey();
        $session = Session::create([
            'payment_method_types' => ['card'],
            'customer_email'       => $userEmail,
            'line_items'           => [
                [
                    'price_data'  => [
                        'product_data' => [
                            'name' => 'Make '.$company->user->first_name.' as featured Company',
                        ],
                        'unit_amount'  => 100 * 100,
                        'currency'     => 'USD',
                    ],
                    'quantity'    => 1,
                    'description' => '',
                ],
            ],
            'client_reference_id'  => '1234',
            'mode'                 => 'payment',
            'success_url'          => url('payment-success').'?session_id={CHECKOUT_SESSION_ID}',
            'cancel_url'           => url('failed-payment?error=payment_cancelled'),
        ]);
        $result = [
            'sessionId' => $session['id'],
        ];
        return $this->sendResponse($result, 'Session created successfully.');
    }
    public function paymentSuccess(Request $request)
    {
        $sessionId = $request->get('session_id');
        // 
    }
   
    public function handleFailedPayment()
    {
        // 
    }
}

Define Routes

    Route::post('stripe-charge', 'StripeController@createSession');
    Route::get('payment-success', 'StripeController@paymentSuccess');
    Route::get('failed-payment',  'StripeController@handleFailedPayment');

Setup From View file

 $(document).on('click', '#makePayment', function () {
           
        $(this).addClass('disabled');
        $.post(makePaymentURL, payloadData).done((result) => {
            let sessionId = result.data.sessionId;
            stripe.redirectToCheckout({
                sessionId: sessionId,
            }).then(function (result) {
                $(this).html('Make Featured').removeClass('disabled');
                manageAjaxErrors(result);
            });
        }).catch(error => {
            $(this).html('Make Featured').removeClass('disabled');
            manageAjaxErrors(error);
        });
    });

use IlluminateDatabaseEloquentModel;
use SpatieMediaLibraryModelsMedia;
use SpatieMediaLibraryHasMediaHasMedia;
use SpatieMediaLibraryHasMediaHasMediaTrait;

class User extends Model implements HasMedia
{
    use HasMediaTrait;

    public function registerMediaConversions(Media $media = null)
    {
        $this->addMediaConversion('profile-thumb')
              ->width(150)
              ->height(150);
    }
}

$media = User::first()->addMedia($pathToImage)->toMediaCollection();

How to fetch the generated thumbnail? 

$media->getPath();  // the path to the where the original image is stored
$media->getPath('profile-thumb') // the path to the converted image with dimensions 150*150

$media->getUrl();  // the url to the where the original image is stored
$media->getUrl('profile-thumb') // the url to the converted image with dimensions 150*150

How to generate multiple thumbnails for a single image? 

..... in User Model .....
use SpatieImageManipulations;


    public function registerMediaConversions(Media $media = null)
    {
        $this->addMediaConversion('profile-thumb')
              ->width(150)
              ->height(150);
    }

        $this->addMediaConversion('old-profile-thumb')
              ->sepia()
              ->border(8, 'black', Manipulations::BORDER_OVERLAY);
    }

Create a Zoom Application

1. Go to Zoom marketplace and do sign in
2. Click Develop button on header and select Build App menu.
3. Choose the JWT and create an application with the app name that you want.
4. Input required information and click Continue until your app will be activated. 

composer require firebase/php-jwt
composer require guzzlehttp/guzzle

ZOOM_API_URL="https://api.zoom.us/v2/"
ZOOM_API_KEY="INPUT_YOUR_ZOOM_API_KEY"
ZOOM_API_SECRET="INPUT_YOUR_ZOOM_API_SECRET"

<?php

namespace App\Traits;

use GuzzleHttp\Client;
use Log;

/**
 * trait ZoomMeetingTrait
 */
trait ZoomMeetingTrait
{
    public $client;
    public $jwt;
    public $headers;

    public function __construct()
    {
        $this->client = new Client();
        $this->jwt = $this->generateZoomToken();
        $this->headers = [
            'Authorization' => 'Bearer '.$this->jwt,
            'Content-Type'  => 'application/json',
            'Accept'        => 'application/json',
        ];
    }
    public function generateZoomToken()
    {
        $key = env('ZOOM_API_KEY', '');
        $secret = env('ZOOM_API_SECRET', '');
        $payload = [
            'iss' => $key,
            'exp' => strtotime('+1 minute'),
        ];

        return \Firebase\JWT\JWT::encode($payload, $secret, 'HS256');
    }

    private function retrieveZoomUrl()
    {
        return env('ZOOM_API_URL', '');
    }

    public function toZoomTimeFormat(string $dateTime)
    {
        try {
            $date = new \DateTime($dateTime);

            return $date->format('Y-m-d\TH:i:s');
        } catch (\Exception $e) {
            Log::error('ZoomJWT->toZoomTimeFormat : '.$e->getMessage());

            return '';
        }
    }

    public function create($data)
    {
        $path = 'users/me/meetings';
        $url = $this->retrieveZoomUrl();

        $body = [
            'headers' => $this->headers,
            'body'    => json_encode([
                'topic'      => $data['topic'],
                'type'       => self::MEETING_TYPE_SCHEDULE,
                'start_time' => $this->toZoomTimeFormat($data['start_time']),
                'duration'   => $data['duration'],
                'agenda'     => (! empty($data['agenda'])) ? $data['agenda'] : null,
                'timezone'     => 'Asia/Kolkata',
                'settings'   => [
                    'host_video'        => ($data['host_video'] == "1") ? true : false,
                    'participant_video' => ($data['participant_video'] == "1") ? true : false,
                    'waiting_room'      => true,
                ],
            ]),
        ];

        $response =  $this->client->post($url.$path, $body);

        return [
            'success' => $response->getStatusCode() === 201,
            'data'    => json_decode($response->getBody(), true),
        ];
    }
    
    public function update($id, $data)
    {
        $path = 'meetings/'.$id;
        $url = $this->retrieveZoomUrl();

        $body = [
            'headers' => $this->headers,
            'body'    => json_encode([
                'topic'      => $data['topic'],
                'type'       => self::MEETING_TYPE_SCHEDULE,
                'start_time' => $this->toZoomTimeFormat($data['start_time']),
                'duration'   => $data['duration'],
                'agenda'     => (! empty($data['agenda'])) ? $data['agenda'] : null,
                'timezone'     => 'Asia/Kolkata',
                'settings'   => [
                    'host_video'        => ($data['host_video'] == "1") ? true : false,
                    'participant_video' => ($data['participant_video'] == "1") ? true : false,
                    'waiting_room'      => true,
                ],
            ]),
        ];
        $response =  $this->client->patch($url.$path, $body);

        return [
            'success' => $response->getStatusCode() === 204,
            'data'    => json_decode($response->getBody(), true),
        ];
    }
    
    public function get($id)
    {
        $path = 'meetings/'.$id;
        $url = $this->retrieveZoomUrl();
        $this->jwt = $this->generateZoomToken();
        $body = [
            'headers' => $this->headers,
            'body'    => json_encode([]),
        ];

        $response =  $this->client->get($url.$path, $body);

        return [
            'success' => $response->getStatusCode() === 204,
            'data'    => json_decode($response->getBody(), true),
        ];
    }

    /**
     * @param string $id
     * 
     * @return bool[]
     */
    public function delete($id)
    {
        $path = 'meetings/'.$id;
        $url = $this->retrieveZoomUrl();
        $body = [
            'headers' => $this->headers,
            'body'    => json_encode([]),
        ];

        $response =  $this->client->delete($url.$path, $body);
        
        return [
            'success' => $response->getStatusCode() === 204,
        ];
    }
}

const MEETING_TYPE_INSTANT = 1;
const MEETING_TYPE_SCHEDULE = 2;
const MEETING_TYPE_RECURRING = 3;
const MEETING_TYPE_FIXED_RECURRING_FIXED = 8;

<?php

namespace App\Http\Controllers;

use App\Models\ZoomMeeting;
use App\Traits\ZoomMeetingTrait;
use Illuminate\Http\Request;

class MeetingController extends AppBaseController
{
    use ZoomMeetingTrait;

    const MEETING_TYPE_INSTANT = 1;
    const MEETING_TYPE_SCHEDULE = 2;
    const MEETING_TYPE_RECURRING = 3;
    const MEETING_TYPE_FIXED_RECURRING_FIXED = 8;

    public function show($id)
    {
        $meeting = $this->get($id);

        return view('meetings.index', compact('meeting'));
    }

    public function store(Request $request)
    {
        $this->create($request->all());

        return redirect()->route('meetings.index');
    }

    public function update($meeting, Request $request)
    {
        $this->update($meeting->zoom_meeting_id, $request->all());

        return redirect()->route('meetings.index');
    }

    public function destroy(ZoomMeeting $meeting)
    {
        $this->delete($meeting->id);

        return $this->sendSuccess('Meeting deleted successfully.');
    }
}

<?php

namespace App\Http\Livewire;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Livewire\Component;
use Livewire\WithPagination;
use Str;

abstract class SearchableComponent extends Component
{
    use WithPagination;

    /**
     * @var string
     */
    public $search = '';

    /**
     * @var int
     */
    protected $paginate = 12;

    /** @var Builder */
    private $query;

    /**
     * SearchableComponent constructor.
     *
     * @param $id
     */
    public function __construct($id)
    {
        parent::__construct($id);

        $this->prepareModelQuery();
    }

    /**
     *  Prepare query
     */
    private function prepareModelQuery()
    {
        /** @var Model $model */
        $model = app($this->model());

        $this->query = $model->newQuery();
    }

    /**
     * @return mixed
     */
    abstract function model();

    /**
     * Reset model query
     */
    protected function resetQuery()
    {
        $this->prepareModelQuery();
    }

    /**
     * @return Builder
     */
    protected function getQuery()
    {
        return $this->query;
    }

    /**
     * @param  Builder  $query
     */
    protected function setQuery(Builder $query)
    {
        $this->query = $query;
    }

    /**
     * @param  bool  $search
     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
     */
    protected function paginate($search = true)
    {
        if ($search) {
            $this->filterResults();
        }

        $all = $this->query->paginate($this->paginate);
        $currentPage = $all->currentPage();
        $lastPage = $all->lastPage();
        if ($currentPage > $lastPage) {
            $this->page = $lastPage;
        }

        return $this->query->paginate($this->paginate);
    }

    /**
     * @return Builder
     */
    protected function filterResults()
    {
        $searchableFields = $this->searchableFields();
        $search = $this->search;

        $this->query->when(! empty($search), function (Builder $q) use ($search, $searchableFields) {
            $searchString = '%'.$search.'%';
            foreach ($searchableFields as $field) {
                if (Str::contains($field, '.')) {
                    $field = explode('.', $field);
                    $q->orWhereHas($field[0], function (Builder $query) use ($field, $searchString) {
                        $query->whereRaw("lower($field[1]) like ?", $searchString);
                    });
                } else {
                    $q->orWhereRaw("lower($field) like ?", $searchString);
                }
            }
        });

        return $this->query;
    }

    /**
     * @return mixed
     */
    abstract function searchableFields();
}

<?php

namespace App\Http\Livewire;

use App\Models\Tag;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;

class Tags extends SearchableComponent
{
    public function render()
    {
        $tags = $this->searchTags();

        return view('livewire.tags', [
            'tags' => $tags,
        ])->with("search");
    }

    /**
     * @return LengthAwarePaginator
     */
    public function searchTags()
    {
        $this->setQuery($this->getQuery());

        return $this->paginate();
    }

    function model()
    {
        return Tag::class;
    }

    function searchableFields()
    {
        return [
            'name',
        ];
    }
}

• How to use Select2 With livewire

Recently in one of our client's project, we want to load the count of relation in laravel. But we do not want to retrieve original records.

For example,

We have the following Models,

1. Category
2. Products
3. Orders

For that, we have categories, products, orders, order_items table. Where in the order_items table, we got the following fields

• order_id
• product_id
• quantity

So the requirement was, In the Products table, we want to display the total number of orders placed with that item regardless of the quantity in each order. All we need is a number of orders where the product is purchased.

1st way: Query via Relationship

$products = Product::all();
$productsArr = $products->map(function (Product $product) {
    $productObj = $product->toArray();
    $productObj['orders_count'] = $product->orders()->count();
    return $productObj;
});

But the problem with this approach was, we are firing queries to the database for every single product. so if I'm retrieving 100 Products from the database then it will fire 100 additional queries to the database. Imagine if we have thousands of products.

2nd way: Eager Load Relationship and Calculate Count

$products = Product::with('orders')->get();
$productsArr = $products->map(function (Product $product) {
    $productObj = $product->toArray();
    $productObj['orders_count'] = $product->orders->count();
    return $productObj;
});

so this way, we are only firing two queries to the database. But the problem here is, we are loading all the Orders of each product which we don't need at all. so it will consume lots of memory since we are loading lots of orders. so imaging if we retrieve 100 products, and each product has 10 orders, then we are loading 1000 Orders into memory without any need.

3rd way: Use withCount function

The third powerful approach of using withCount function in Laravel. so we refactored our code like,

$products = Product::withCount('orders')->get();
$productsArr = $products->map(function (Product $product) {
    $productObj = $product->toArray();
    $productObj['orders_count'] = $product->getAttribute('orders_count');
    return $productObj;
});

In this approach, we are firing two queries but no Order models are loaded into memory.

4th Bonus: Using in a nested relationship while multiple eager loading

You can even use it with nested relationships. Imagine a case, where you want to retrieve categories along with its products with orders count.

$categories = Category::with([
    'products' => function ($query) {
        $query->withCount('orders');
    },
    'someOtherEagerLoading1',
    'someOtherEagerLoading2'
])->get();
$categoriesArr = $categories->map(function (Category $category) {
    $categoryObj = $category->toArray();
    $categoryObj['products'] = $category->products->map(function (Product $product) {
        $productObj = $product->toArray();
        $productObj['orders_count'] = $product->getAttribute('orders_count');
        return $productObj;
    });
    return $categoryObj;
});

Hope this will help you to retrieve the count of relationship data without retrieving actual relation data.

Lots of people ask me frequently, "Which are the laravel packages that you use in almost all projects?" when we meet in Meetup or any other events regardless of its online or physical events.

Let me describe today some of the packages that we almost use in all of the projects.

We are working in Laravel for almost 7+ years and in these years we have used lots of packages, some from the community and some of our own.

I am categorizing these into 2 categories.

1. Must used packages
2. Common Need/Functionality specific packages

Must used packages

These are the packages which are must be included in all of our projects. No Excuses.

barryvdh/laravel-ide-helper

Laravel exposes a lot of magic methods and properties. IDE Helper is a very good package when it comes to auto-complete those properties and methods. Even it does an amazing job while refactoring properties or methods of the model.

barryvdh/laravel-debugbar

The second one is from the same author, debugbar helps to debug the request in terms of the number of queries fired, time taken by each query, number models retrieved from db, time taken by each request, and much more.

imanghafoori/laravel-microscope

Laravel Microscope improves the readability of your code. Early returns, unnecessary else statements, and many more. so your code looks clean and efficient in terms of execution as well.

beyondcode/laravel-query-detector

One of the problems that we face is, missing eager loading. In ongoing development, sometimes we add relationships objects in the loops, and then laravel fires tons of queries to the database. Laravel Query Detector detects that and gives warning while development environment.

InfyOmLabs/laravel-generator

No application can be ever built without few CRUDs. CRUDs are essential in almost all web applications. Also, APIs of that CRUDs are essentials while building a backend for Mobile or Frontend apps. Laravel Generator is our own developed package that we use in all of the applications to make the CRUD building process faster. It can be used with two themes right now, AdminLTE and CoreUI. But it's also frontend framework agnostic.

Common Need/Functionality specific packages

These are the packages that are used when we particularly need that kind of functionality in the application.

• Single Page application without JS - Livewire
• Role Permissions - spatie/laravel-permission
• Media Management - spatie/laravel-medialibrary
• Full Text Search - Laravel Scout
• Payment - Laravel Cashier
• Frontend Scaffolding - Laravel UI AdminLTE & Laravel UI CoreUI
• APIs token management - Laravel Sanctum
• Realtime Apps - Laravel Echo with Pusher & Laravel Echo Server
• One Signal - Shailesh OneSignal

Will keep this list updating.

Most of the developers are facing select2 styles removing issue when livewire render the component.

We can resolve this issue by using a livewire javascript hook.

Here is my screen with select2 before livewire component rendering.

And when the livewire component is refreshed means re-render the select2 style is gone ☹️

How to Fix it ?? 🤔

document.addEventListener('livewire:load', function (event) {
    window.livewire.hook('afterDomUpdate', () => {
        $('#select2ID').select2();
    });
});

• Setup livewire with component example
• How to use livewire pagination