This content was released on Apr 13 2021. The official support period is 6-months from this date.
Combine has a number of operators to help with handling network data, sharing resources with multiple subscribers, and managing errors. Once those are in place, you can perform unit tests on your Combine pipelines to make sure everything is running error-free.
This is a companion discussion topic for the original entry at https://www.kodeco.com/21773708-intermediate-combine