BP_Core_oEmbed_Extension::get_item( WP_REST_Request $request )

	public function get_item( $request ) {
		$url = $request['url'];

		$data = false;

		$item_id = (int) $this->validate_url_to_item_id( $url );

		if ( ! empty( $item_id ) ) {
			// Add markers to tell that we're embedding a single activity.
			// This is needed for various oEmbed response data filtering.
			if ( empty( buddypress()->{$this->slug_endpoint} ) ) {
				buddypress()->{$this->slug_endpoint} = new stdClass;
			}
			buddypress()->{$this->slug_endpoint}->embedurl_in_progress = $url;
			buddypress()->{$this->slug_endpoint}->embedid_in_progress  = $item_id;

			// Save custom route args as well.
			$custom_args = array_keys( (array) $this->set_route_args() );
			if ( ! empty( $custom_args ) ) {
				buddypress()->{$this->slug_endpoint}->embedargs_in_progress = array();

				foreach( $custom_args as $arg ) {
					if ( isset( $request[ $arg ] ) ) {
						buddypress()->{$this->slug_endpoint}->embedargs_in_progress[ $arg ] = $request[ $arg ];
					}
				}
			}

			// Grab custom oEmbed response data.
			$item = $this->set_oembed_response_data( $item_id );

			// Set oEmbed response data.
			$data = $this->get_oembed_response_data( $item, $request['maxwidth'] );
		}

		if ( ! $data ) {
			return new WP_Error( 'oembed_invalid_url', get_status_header_desc( 404 ), array( 'status' => 404 ) );
		}

		return $data;
	}