Mergado App Hook Client

A standard implementation of hook client for a Mergado App. You can of course implement your own app's hook handler, but this is to provide you a default and standard Mergado way and to show you how it can be done.

For more information about hooks, see http://mergado.github.io/docs/apps/app-hooks.html.

Requirements

PHP 7

Installation

1. Download the file MergadoAppHookClient.php located at https://github.com/mergado/mergado-app-hook-client/blob/master/lib/MergadoAppHookClient.php
2. Put it somewhere into your app's directory, so you can include the file from the index.php file located in your app's system hook directory (which is then invoked by Mergado placing requests to your app's hook endpoint: https://appcloud.mergado.com/apps/myapp/_mergado/hook/)

Usage

1. Include the file containing the Hook Client.
2. Instantiate the Hook Client:

$c = new \MergadoApp\Hook\Client;

3. Add handlers to hooks by registering callbacks with their respective hook names. For example:

$c->addHandler('app.disable', function($hookData) { /* Some logic. */ });

4. Run the client:

$c->run();

5. Profit!

Full example:

<?php

require __DIR__ . "/../lib/MergadoAppHookClient.php";

// Uncomment this to enable debug mode - errors will be shown.
// \MergadoApp\Hook\Client::$debug = true;

$c = new \MergadoApp\Hook\Client;

$c->addHandler('app.enable', function($hookData) {

	// "App is being enabled" logic.
	printf("App enabled for %s with ID %s.", $hookData['entity_type'], $hookData['entity_id']);
	
});

$c->addHandler('app.disable', function($hookData) {

	// "App is being disabled" logic.
	printf("App disabled for %s with ID %s.", $hookData['entity_type'], $hookData['entity_id']);
	
});

$c->run();

Registering handlers

Handler for each hook must fit the callable typehint. This handler is then invoked, with the only argument: data parsed from the hook request JSON body. This way you have the information you need about the hook available inside the handler function.