how to get Revenue using programming in Magento 2?

Question

how can we get the Revenue using API or Without using API programming in Magento 2.4, like below image,

I have tried using API, and below is my code. webapi.xml

<?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/custom/custom-api/post/" method="GET">
        <service class="Rental\Totalrevenue\Api\CustomInterface" method="getTotalRevenue"/>
        <resources>
            <resource ref="anonymous"/>
        </resources>
    </route>
</routes>

custom.php /var/www/html/m2_new_staging/app/code/Rental/Totalrevenue/Model/Api

<?php
namespace Rental\Totalrevenue\Model\Api;
use Magento\Reports\Model\ResourceModel\Order\CollectionFactory;
use Psr\Log\LoggerInterface;
class Custom
{
  protected $_collectionFactory;
  protected $logger;
public function __construct(
    LoggerInterface $logger,
    CollectionFactory $collectionFactory
  )
  {
$this-&gt;logger = $logger;

}
/**

@inheritdoc

*/
public function getTotalRevenue()
  {
      //pass ID parameter as you need from store or website
      $isFilter = $this->getRequest()->getParam(
          'store'
      ) || $this->getRequest()->getParam(
          'website'
      ) || $this->getRequest()->getParam(
          'group'
      );
      $period = $this->getRequest()->getParam('period', Period::PERIOD_24_HOURS); // 1y, 2y
      / @var $collection Collection /
      $collection = $this->_collectionFactory->create()->addCreateAtPeriodFilter(
          $period
      )->calculateTotals(
          $isFilter
      );
      if ($this->getRequest()->getParam('store')) {
          $collection->addFieldToFilter('store_id', $this->getRequest()->getParam('store'));
      } else {
          if ($this->getRequest()->getParam('website')) {
              $storeIds = $this->_storeManager->getWebsite($this->getRequest()->getParam('website'))->getStoreIds();
              $collection->addFieldToFilter('store_id', ['in' => $storeIds]);
          } else {
              if ($this->getRequest()->getParam('group')) {
                  $storeIds = $this->_storeManager->getGroup($this->getRequest()->getParam('group'))->getStoreIds();
                  $collection->addFieldToFilter('store_id', ['in' => $storeIds]);
              } elseif (!$collection->isLive()) {
                  $collection->addFieldToFilter(
                      'store_id',
                      ['eq' => $this->_storeManager->getStore(Store::ADMIN_CODE)->getId()]
                  );
              }
          }
      }
      $collection->load();
      $totals = $collection->getFirstItem();
      return $totals->getRevenue();
      //return 'Total Revenue $param ' . $param;
  }
public function getPost($value)
  {
    $response = ['success' => false];
try {
  // Your Code here

  $response = ['success' =&gt; true, 'message' =&gt; $value];
} catch (\Exception $e) {
  $response = ['success' =&gt; false, 'message' =&gt; $e-&gt;getMessage()];
  $this-&gt;logger-&gt;info($e-&gt;getMessage());
}
$returnArray = json_encode($response);
return $returnArray;

}
}

CustomInterface.php

/var/www/html/m2_new_staging/app/code/Rental/Totalrevenue/Api

<?php
namespace Rental\Totalrevenue\Api;
interface CustomInterface
{
/**

GET for Post api
@param string $param
@return string

*/
public function getTotalRevenue();
}

here i have code $period = $this->getRequest()->getParam('period', Period::PERIOD_24_HOURS);, can we have changes that period like, today, last 3 months?

Answer 1

Go to the Path Magento\Backend\Block\Dashboard\Totals This block is responsible form returning the Revenue to the dashboard Magento_Backend::dashboard\totalbar.phtml.check this line $this->addTotal(__('Revenue'), $totals->getRevenue());