When using Gravity Forms and the Microsoft Azure Storage plugin, uploaded files via a form are not automatically uploaded to Azure. This piece of code fixes that.

gravity-forms-azurre-storage.php

<?php

class Radish_GF_Azure_HandleUploads {

	private static $instance;

	public function __construct() {
		$this->run();
	}

	public function run() {
		add_action( 'gform_after_submission', [ $this, 'process_uploads_to_azure' ], 10 );
	}

	public function process_uploads_to_azure( $entry ) {
		if( ! class_exists( 'Windows_Azure_Helper' ) ) {
			return false;
		}

		require_once( ABSPATH . 'wp-admin/includes/file.php' );

		$upload_dir = wp_upload_dir();

		// Determine file.
		$file_url = $entry[8];
		$file_url = json_decode( $file_url )[0];

		// Generate correct paths.
		$url_parts = parse_url( $file_url );
		$file_path = str_replace( '/media/', '', $url_parts['path'] );
		$full_path = $upload_dir['basedir'] . '/' . $file_path;

		// Upload the file to Azure.
		\Windows_Azure_Helper::put_uploaded_file_to_blob_storage( 'media', $file_path, $full_path );

		return true;
	}

	/**
	 * Returns an instance of this class. An implementation of the singleton design pattern.
	 *
	 * @return   object    A reference to an instance of this class.
	 * @since    1.0.0
	 */
	public static function get_instance() {

		if ( null == self::$instance ) {
			self::$instance = new HandleUploads();
		}

		return self::$instance;

	}
}