Events vs Commands: What's the difference?

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Message bus communication often uses Commands and Events. But, what's the difference between them? Aren't they both just messages?

The difference is about grammar, intention, and also the direction of some different kinds of arrows...

0:00 Intro
0:18 What do the words mean?
0:34 When do they happen?
1:36 Who are they for?
2:53 Direction of control and dependency
4:19 Example third party provider
5:07 Related concepts
  1. Drawing Boxes
  2. command
  3. commands
  4. event
  5. events
  6. messaging
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Комментарии
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Gold mine of a channel. Looking for more!

SirRFI
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Crisp and clear, leaving no doubts or unanswered ifs. Great job. Draw us more boxes.

AK-vxdy
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You deserve a lot more views and subscribers. Love how clear you explain things.

miguelacuna
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you are awesome and so are your videos !!!

sillycoder
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I've been binge watching all your videos. Great stuff, I already knew some of this stuff but these are still really really clear and concise descriptions and you've had a thing or two to teach me too.
This one's my favourite though. I'm mad keen on spoken language too and all your talk of tenses and moods and persons ticks two of my boxes at once. :)

edgeeffect
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Why does this channel only have less than 5k subscribers? Should be at least 100k... 🔺

devtomek
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that last slide is confusing. how is callback related to ES?

Kubkochan