Generate and download Apple Passbook member cards from the Pass Gate server using Rest API. The cards are built with info of currently logged in user.
Install Apple Passbook Gateway either via the WordPress.org plugin directlry, or by uploading the files to your server.
Create pass template and generator on Pass Gate server. Use sample "wordpress" template instead of starting from scratch with all new template. The "wordpress" template is identical to the one used in the demo.
Use plugin settings menu (Dashboard/Settings/Passbook Gateway) to supply Rest API connection info - the page provides a link to setup free trial account with Pass Gate.
Place the [passbook-member-card] short code on appropriate page of your site. The short code will generate either member card download link or, if visitor is not logged in, login form. You may provide link text using option parameter "title": [passbook-member-card title="Clip your card!"]