How to Get Value of Custom Attribute via Rest API Magento 2
How to Get Value of Custom Attribute via Rest API is also the useful tutorial so that the developers can add more custom field during running the own Magento 2 stores.
How to Get Value of Custom Attribute via Rest API is also the useful tutorial so that the developers can add more custom field during running the own Magento 2 stores. This topic takes care of all essential steps you must follow to use Rest API within getting value of the custom attribute.
Overview of getting value of custom attribute via rest api
- Step 1: Add new column and set value for the existing order
- Step 2: Add a specific new file
- Step 3: Add an observe
- Step 4: Add a file to handle the event
- Step 5: Clear folder to activate function
Step 1: Add new column and set value for the existing order
To get a custom attribute, the first thing is inserting a new column that is called as mageplaza_helloworld_custom_attribute
in table sales_order and setting value for the existing orders.
Step 2: Add a specific new file
Because Magento 2 does not support for a new field in the response on the Rest API, so you must add a file \app\code\Mageplaza\HelloWorld\etc\extension_attributes.xml
in the extension folder with content:
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
<extension_attributes for="Magento\Sales\Api\Data\OrderInterface">
<attribute code="mageplaza_helloworld_custom_attribute" type="string" />
</extension_attributes>
</config>
Step 3: Add an observe
To inject the custom attribute into extension_attributes.xml
, it is compulsory to add an observe for event ``sales_order_load_after via
\app\code\Mageplaza\HelloWorld\etc\events.xml` file.
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
<event name="sales_order_load_after">
<observer name="sales_order_load_helloworld_custom_attribute" instance="Mageplaza\HelloWorld\Observer\Sales\OrderLoadAfter" />
</event>
</config>
Step 4: Add a file to handle the event
Generate a file app\code\Mageplaza\HelloWorld\Observer\Sales\OrderLoadAfter.php
that to mange the event sales_order_load_after
in the previous step.
<?php
namespace Mageplaza\HelloWorld\Observer\Sales;
use Magento\Framework\Event\ObserverInterface;
class OrderLoadAfter implements ObserverInterface
{
public function execute(\Magento\Framework\Event\Observer $observer)
{
$order = $observer->getOrder();
$extensionAttributes = $order->getExtensionAttributes();
if ($extensionAttributes === null) {
$extensionAttributes = $this->getOrderExtensionDependency();
}
$attr = $order->getData('helloworld_custom_attribute');
$extensionAttributes->setHelloWorldCustomAttribute($attr);
$order->setExtensionAttributes($extensionAttributes);
}
private function getOrderExtensionDependency()
{
$orderExtension = \Magento\Framework\App\ObjectManager::getInstance()->get(
'\Magento\Sales\Api\Data\OrderExtension'
);
return $orderExtension;
}
}
Step 5: Clean folder to activate function
The folder var\generation
need to be eliminate if you want to activate functionsetHelloWorldCustomAttribute()
and getHelloWorldCustomAttribute
in file var\generation\Magento\Sales\Api\Data\OrderExtension.php
which is be auto-built.
/**
* @return string|null
*/
public function getHelloWorldCustomAttribute()
{
return $this->_get('helloworld_custom_attribute');
}
/**
* @param string $helloWorldCustomAttribute
* @return $this
*/
public function setHelloWorldAttribute($helloWorldCustomAttribute)
{
$this->setData ('helloworld_custom_attribute', $helloWorldCustomAttribute);
return $this;
}
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Sam Thomas
CEO and Founder of Mageplaza. Pursueing a simple and healthy lifestyle. A friend, a husband and a dad of two children, a trainer and an influencer wannabe. He is a big fan of sports and travel, also.
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