EoneoPay Activity/Webhook Library

This library adds support for creating Activities which are then fired as webhooks to subscribers of those activities.

Installation

Use Composer to install the package in your project:

composer require eoneopay/webhooks

Usage

Inject the \EoneoPay\Webhooks\Activities\Interface\ActivityFactoryInterface service into your application where an activity needs to be created. The send method on this interface accepts an ActivityDataInterface implementation that represents a specific activity to be created.

For each of the different activities you will fire inside your application you will need to create a class that implements ActivityDataInterface.

Theory of Operation

• ActivityFactoryInterface receives an instance of ActivityDataInterface
  • The factory will then call the PayloadManager to build the payload for the ActivityDataInterface
  • The factory will take the payload and the ActivityDataInterface and save it as a new ActivityInterface entity.
  • Finally, the factory will dispatch an ActivityCreatedEvent
• The listeners will receive the event inside an asynchronous queue worker and call WebhookManager#processActivity
  • The WebhookManager will resolve any subscriptions for the activity
  • Then it will create a new WebhookRequest for each subscription
  • And dispatch a new WebhookRequestCreatedEvent.
• Another listener will accept this event and call RequestProcessor#process
  • Which builds a PSR7 Request
  • Sends the request
  • Records the result as a WebhookResponse

Integration

Laravel

To integrate the package into your Laravel or Lumen you need to register the following service providers:

\EoneoPay\Webhooks\Bridge\Laravel\Providers\WebhookServiceProvider
\EoneoPay\Webhooks\Bridge\Laravel\Providers\WebhookEventServiceProvider

Any implementation of this library will need to:

• Implement and bind a service for the interface EoneoPay\Webhooks\Subscription\Interfaces\SubscriptionResolverInterface
• Implement a service for the interface EoneoPay\Webhooks\Payload\Interfaces\PayloadBuilderInterface
  • example

  interface WebHookPayloadBuilderInterface extends PayloadBuilderInterface
  { ... }
  
  final class PayloadBuilder implements WebHookPayloadBuilderInterface
  { ... }
  

  • bind and tag the service for the interface YourNamespace\WebHookPayloadBuilderInterface

  $this->app->bind(WebHookPayloadBuilderInterface::class, PayloadBuilder::class);
  $this->app->tag([WebHookPayloadBuilderInterface::class], ['webhooks_payload_builders']);
  

• Add EoneoPay\Externals\Bridge\Laravel\ORM\ResolveTargetEntityExtension to config/doctrine.php under the extensions key
• Modify config/doctrine.php to add the following changes to the configuration:

<?php
declare(strict_types=1);

use EoneoPay\Externals\Bridge\LaravelDoctrine\Extensions\ResolveTargetEntityExtension;
use EoneoPay\Webhooks\Models\ActivityInterface;
use EoneoPay\Webhooks\Models\WebhookRequestInterface;
use EoneoPay\Webhooks\Models\WebhookResponseInterface;
use EoneoPay\Webhooks\Bridge\Doctrine\Entities\Activity;
use EoneoPay\Webhooks\Bridge\Doctrine\Entities\Lifecycle\Request;
use EoneoPay\Webhooks\Bridge\Doctrine\Entities\Lifecycle\Response;

return [
    'managers' => [
        'default' => [
            // ...
            'namespaces' => [
                // ...
                // Add the Webhooks Entities to the namespace mappings
                'Eoneopay\\Webhooks\\Bridge\\Doctrine\\Entities'
            ],
            'paths' => [
                // ...
                // Add the Webhooks filepath to the Entity Manager
                \base_path('vendor/eoneopay/webhooks/src/Bridge/Doctrine/Entities')
            ]
            // ...
        ]
    ],
    
    // ...
    
    'extensions' => [
        // ...
        // Add the ResolveTargetEntityExtension to Doctrine
        ResolveTargetEntityExtension::class
    ],
    
    // ...
    
    'replacements' => [
        // Add replacements so Doctrine can look up entities by interface
        ActivityInterface::class => Activity::class,
        WebhookRequestInterface::class => Request::class,
        WebhookResponseInterface::class => Response::class
    ]
];