Lightning talk exploring service bus, produced and given at wroclove.rb.

1. DECOUPLING RUBY
WITH A BUS
Photo by Francis Farago on Unsplash

2. COMMANDS
WHAT?
• ONE and ONLY one
command handler per single
command!
• Threadsafe!

3. EVENTS
WHAT?
• Multiple event handlers per
single event!
• Still threadsafe!

4. REGISTRATION PHASE (BOOT TIME)
HOW?
• Register commands

5. REGISTRATION PHASE (BOOT TIME)
HOW?
• Register events

6. EXECUTION PHASE (RUNTIME)
HOW?
• Handle command
• Handle event

7. BECAUSE COUPLING
WHY?
• Handlers are registered on
boot time
• Publisher needs not know
what, if anything, will handle
the message. Jut tell the BUS
to handle it.
• Handlers do not care where
message is coming from.
• Interacting parties are
decoupled.

8. Photo by Robert Nelson on Unsplash
TWEET @KRULE