Set Custom CMS page as a home page programatically in Magento 2

Question

How to set a custom CMS page as my Magento home page programmatically.

Answer 1

You can set default value with following code.

 public function __construct(\Magento\Config\Model\ResourceModel\Config $_resourceConfig)
    {
        $this->_resourceConfig = $_resourceConfig;
    }

        $this->_resourceConfig->saveConfig('web/default/cms_home_page', 'youridentifier', 'default', 0);

Answer 2

By using Magento\Framework\App\Config\Storage\WriterInterface , you can set a store config value

use Magento\Framework\App\Config\ScopeConfigInterface;

    /**
     *  @var \Magento\Framework\App\Config\Storage\WriterInterface
     */
    protected $configWriter;

    /**
     *
     * @param \Magento\Framework\App\Config\Storage\WriterInterface $configWriter
     */
    public function __construct(
        ....
        \Magento\Framework\App\Config\Storage\WriterInterface $configWriter
        .....
    )
    {
        $this->configWriter = $configWriter;
    }

    $this->configWriter->save('web/default/cms_home_page',  $CMSPAGEIdentifier, $scope = ScopeConfigInterface::SCOPE_TYPE_DEFAULT, $scopeId = 0);