Automatically import wallabag entries into WordPress. For those not in the know, wallabag is a free, self-hosted read-it-later app.

First, create a wallabag API client. Then head over to WP Admin's Settings > Import From Wallabag and fill out your client ID and secret, and your wallabag username and password, too.

Alternatively, add your username and password to your WordPress install's config.php:

define( 'IMPORT_FROM_WALLABAG_USER', '<your-wallabag-username>' );
define( 'IMPORT_FROM_WALLABAG_PASS', '<your-wallabag-password>' );

Other options include: target Post Status, Post Type and Post Format, and an optional Tags setting. (Only items that match all of these tags will be imported.)

Import From Wallabag will automatically run twice a day and import the most recent 30 entries that match the provided tags and were added after it was run last.

Use import_from_wallabag_api_args to filter the API arguments:

add_filter( 'import_from_wallabag_api_args', function( $args ) {
  $args['perPage'] = 60;   // When 30 is not enough.
  unset( $args['since'] ); // Grab all last 60 items, regardless of when they were created.
  return $args;
}, 10, 2 );

The formatting of imported posts can be completely customized using import_from_wallabag_post_args:

add_filter( 'import_from_wallabag_post_args', function( $args, $entry ) {
  // Modify, e.g., `$args['post_content']`.
  return $args;
}, 10, 2 );