Using authentication and authorization, lock down your ActionCable WebSockets so that messages are only sent and received to the intended users.

When displaying a count of records, this will generate extra SQL Queries. Learn how to reduce the number of SQL queries called with counter caching the number of associated records.

We may come across a need to run shell commands and Ruby has some built in methods which appear safe, but can introduce major security risks.

In this episode, we look at some lesser known bundler commands including binstubs.

Slack is a great application to keep in contact with friends, coworkers and a community. With bots, its capabilities are endless. In this episode, learn how to create a Slack Bot to interact with.