How do I add tracking numbers to cards via automation using the "Package Tracker" app?

[Alexandre Isobe]

1. Is there a method to add a tracking number to a card in use with the "Package Tracker" app via automation (vs. manually opening each card and adding tracking number)? 

I've tried multiple ways but stumped. Ideally would like to be done from Zapier but webhook or manually API is OK too. 

2. Is it possible to have the tracking details such as a status of a tracked packaged (ex. "Delivered") or even the estimated delivery date to be read when pulling the details of a card through Zapier or webhook? 

[Marta Galofre de Alos]

Hi Alexandre!

Right now, this is possible by using Trello's API and attaching a URL that looks like this to a Trello card: 

https://packagetrackr.com/track/{carrier}/{trackingNumber}

Make sure that the carrier's name formatted in a way that will be understood, it has to be all lowercase and if there are spaces underscores must be used in their place (e.g. `UPS` has to be `ups`, 'Canada Post' has to be 'canada_post').

How to add an attachment using the Trello API is documented here:
https://developers.trello.com/v1.0/reference#cardsidactionscomments