Ttdfjt

There is REST API endpoint for specific order statuses

GET /V1/orders/:id/statuses

Reference: https://devdocs.magento.com/guides/v2.3/rest/list.html

But I am looking for approach to fetch all available order statuses using REST API because I am working on external system in which I need to fetch the required magento data.

Any help, experience and knowledge sharing would be appreciated

I created module for that, You can follow this steps for that :

Step 1 : Create registration.php file at app/code/RH/OrderStatus

<?php
MagentoFrameworkComponentComponentRegistrar::register(
 MagentoFrameworkComponentComponentRegistrar::MODULE,
 'RH_OrderStatus',
 __DIR__
);

Step 2 : Create module.xml file at app/code/RH/OrderStatus/etc

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
 <module name="RH_OrderStatus" setup_version="1.0.0"/>
</config>

Step 3 : Create webapi.xml file at app/code/RH/OrderStatus/etc

<?xml version="1.0"?>
<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../app/code/Magento/Webapi/etc/webapi.xsd">
 <route url="/V1/getorderstatus" method="GET">
 <service class="RHOrderStatusApiGetorderstatus" method="getorderstatusarray"/>
 <resources>
 <resource ref="admin"/>
 </resources>
 </route>
</routes>

Step 4 : Create di.xml file at app/code/RH/OrderStatus/etc

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/ObjectManager/etc/config.xsd">
 <preference for="RHOrderStatusApiGetorderstatus" type="RHOrderStatusModelGetorderstatusModel" />
</config>

Step 5 : Create Getorderstatus.php file at app/code/RH/OrderStatus/Api

<?php
namespace RHOrderStatusApi;
interface Getorderstatus 
 /**
 * @api
 * @return array
 */
 public function getorderstatusarray();

Step 6 : Create GetorderstatusModel.php file at app/code/RH/OrderStatus/Model

<?php
namespace RHOrderStatusModel;

use RHOrderStatusApiGetorderstatus;

class GetorderstatusModel implements Getorderstatus 

 protected $statusCollectionFactory;
 public function __construct(
 MagentoSalesModelResourceModelOrderStatusCollectionFactory $statusCollectionFactory
 ) 
 $this->statusCollectionFactory = $statusCollectionFactory;
 

 public function getorderstatusarray() 
 $options = $this->statusCollectionFactory->create()->toOptionArray();
 return $options;
 

Now, Go to Admin -> System -> Integrations and Get Access Token value and set authorization value into postman application.

Then, execute base_url/rest/V1/getorderstatus this URL in postman.

You will get all order status.

Hope, It will helpful for you.