Resource Topic Shortcode

// Add Shortcode
function resource_topic_shortcode( $atts ) {

	// Attributes
	$atts = shortcode_atts(
		array(
			'topic' => 'anti-corruption-anti-bribery',
			'count' => '3',
		),
		$atts
	);

	$resource_topic = get_term_by( 'slug', $atts['topic'], 'resource-topic' );
		
	$args = array(
		"post_type" => array( "resources" ),
		"post_status" => array( "publish" ),
		"tax_query" => array(
			array(
				"taxonomy" => "resource-topic",
				"field" => "slug",
				"operator" => "IN",
				"terms" => array( $atts['topic'] )
			)
		),
		"posts_per_page" => $atts['count']
	);
		$resource_results = new WP_Query( $args );
		
		ob_start();
		
		if($resource_results->have_posts()):
			echo '<div class="resources-results">';
			while ( $resource_results->have_posts() ): $resource_results->the_post();
				echo get_template_part( 'lib/template-parts/resource', 'listing' );
			endwhile;
			echo '</div>';
		else:
			echo '<p>Sorry, there are no resources that matched your search.</p>';
		endif;
		
		$output = ob_get_contents();
		ob_end_clean();
		
		return $output;

}
add_shortcode( 'resource_topic', 'resource_topic_shortcode' );