Cache ConvertKit Tag List

convertkit-cache-tags

function build_convertkit_tag_list( $force_refresh = 0 ) {
	
	$convertkit_api_key = ( isset( $_POST['nt_convertkit_api'] ) ? $_POST['nt_convertkit_api'] : null );
	
	if ( !empty( $convertkit_api_key ) || $force_refresh ) :
		
		$api_key = get_option( 'nt_convertkit_api' );
		
		if ( !empty( $api_key ) ) {
			
			$json = np_curl_get_contents( 'https://api.convertkit.com/v3/tags?api_key=' . $api_key );
			
			$obj = json_decode($json);
			
			$tags = $obj->tags;
			
		} else {
			
			$tags = array();
			
		}
		
		$tag_array = array();
		
		foreach( $tags as $tag ) {
			
			$tag_array[$tag->id] = $tag->name;
			
		}
		
		update_option( 'convertkit_tags', $tag_array );
		
	endif;
	
}
add_action( 'admin_init', 'build_convertkit_tag_list' );