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REST - Representational State Transfer is intended to evoke an image of how a well-designed web application behaves.

• Facts of REST
  • REST is not a standard/protocol its an architectural style
  • REST is protocol agnostic
  • JSON is not part of REST
  • HTTP is also not part of REST

• 6 REST Constraints
  • Client - Server Architecture : Client and server are separated and can evolve separately.

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Common Magento 2 Issues and Their Solutions // Magenticians https://magenticians.com/magento-2-issues/

Magento 2 is one of the most powerful and popular ecommerce platforms. However, many people run into Magento 2 issues. Since Magento is a fully feature-loaded platform, it may come off as difficult to handle, but if you know where to look, you can find solutions to most Magento related problems.

We have listed down the most common Magento 2 issues, and to make it easier for you, we have also provided the relevant solutions to them!

Common Issues in Magento 2

These are some common issues in Magento 2:

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Anatomy of Magento 2: API

• Anatomy of Magento 2: API
  • Areas for further investigation
  • The Basics
  • Authentication and Authorisation
    • Authentication account types
    • Types of authentication
      • Token
• Session

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Application initialization My video "Under the hood of Magento": http://www.youtube.com/watch?v=M10RR9acNE8 (watch in 1080p)

Front Controller These articles both cover in greater depth how the Front controller is initiated and how routers are selected.

http://www.andreiboar.com/magento/magento-front-controller/

http://blog.belvg.com/magento-front-controller-pattern.html

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Get Ready for Magento Certified Developer Exam. Magento Codepool
http://blog.belvg.com/magento-certification-magento-codepool.html

Get Ready for Magento Certified Developer Exam. Magento Module Structure.
http://blog.belvg.com/magento-certification-module-structure.html

Get Ready for Magento Certified Developer Exam. The Main Magento Design Areas and More…
http://blog.belvg.com/get-ready-for-magento-certified-developer-exam-the-main-magento-design-areas-and-more.html

Get Ready for Magento Certified Developer Exam. Class Naming Conventions and Their Relationship with the Autoloader

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public function indexAction() {    
    $coupon_code = $this->getRequest()->getParam('coupon_code');
    
    if ($coupon_code != '') {
        Mage::getSingleton("checkout/session")->setData("coupon_code",$coupon_code);
        Mage::getSingleton('checkout/cart')->getQuote()->setCouponCode($coupon_code)->save();
	Mage::getSingleton('core/session')->addSuccess($this->__('Coupon was automatically applied'));
    }
    else {
        Mage::getSingleton("checkout/session")->setData("coupon_code","");

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<?php

$start = new DateTime( '2013-10-01' );
$end = new DateTime( '2014-01-01 23:59:59' );
$interval = new DateInterval('P1D');

$period = new DatePeriod($start, $interval, $end);

// only trigger every three weeks...
$weekInterval = 3;

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class Getready_Rewrite_Model_Core_Url extends Mage_Core_Model_Url {
  
  /**
   * Build url by requested path and parameters
   *
   * @param   string|null $routePath
   * @param   array|null $routeParams
   * @return  string
   */
  public function getUrl($routePath = null, $routeParams = null) {

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http://stackoverflow.com/questions/19393729/calling-a-magento-event-observer-after-payment-capture

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<?xml version="1.0"?>
<layout>
    <default>
        <!--Root/Default Layouts-->
        <reference name="root">
            <!--Appending Block-->
            <block type="page/html_breadcrumbs" name="breadcrumbs" as="breadcrumbs"/>
        </reference>
 
        <!--CSS and JS Files-->