Event-Driven Architecture: Explained in 7 Minutes!

Event-driven architecture is an essential architectural pattern used with microservices. In this video, I cover what it is, when you should use it and the pros and cons.

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00:00 - What is Event Driven Architecture?
02:24 - When to use it?
03:12 - Advantages
04:41 - Disadvantages

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[thenullpointer]

Hi! Nice explanation! I appreciate the balanced approach to discussing the pros and cons of event-driven architecture. It's important to consider both sides before making a decision, especially eventual consistency, and this video did a great job of laying that out!

[humzakhan]

Thank you Alex. Your explanation is quite eloquent and comprehensive. God bless you

[portfedh]

I've been using it without knowing with my Esp32 and MQTT. Thanks for the explanation

[faheemshahidkc]

i am so happy to easy this. because i am a self learning software developer. thanks a looot!!!!
keep going!

[raminsadeghnasab]

This is an amazing video you explain like it's super easy. Thank you so much.

[joaopedrorocha]

Feels like the observer pattern but through a network.

[RaviKumar-kdnh]

Thank you very much. Excellent explanation.

[RishiRajxtrim]

thank you very much for covering so many aspects... so well.

[lokithor]

very clear and informative.. Thanks Alex..

[abhiroopghatak]

multi producer - consumer case .... this msg queue will be SPOF and if creating multi instance of this queue then consumers will receive multiple duplicate messages which eventually loads the consumer server.

[selebogosegatlaka]

Amazing videos man, keep them coming. Thanks!

[mundakamaal]

Hi Alex, your videos are precise, short and informative. I am loving it and watching it, however on this specific video, wouldn’t it be great to provide more comparative aspect between messages and event based architecture along with more used cases for each?

[nkulmati]

A brief dive into queue-based vs log-based would help to make this more complete (eg rabbitmq vs kafka)

[CodeOnBlocks]

This was an excellent video, thank you! Subscribed. :)

[opengeek]

Beware that events don't magically decouple your code by itself if you're importing things form either of the two packages you're trying to decouple you're coupling with them. If you use classes that belong to any of the packages you're trying to decouple in the event you're effectively coupling teh two packages anyway. ALso if you're designing you're events in a way that they're conceptually targeting a particular listener instead of being just a signal of something happening (i. e. NotifyOrderDoneEvent vs OrderDoneEvent) you'r conceptually coupling teh event to one of its listeners and doing events for the sake of doing events. Please don't do this because that would jeopardize all your effort to create an event system that is coupled with everything increasing complexity and not delivering any real architectural value.

[Simvetanylen]

On an "API driven architecture", you have consistency problems too.
When a microservice calls another microservice, they aren't bound to the same transaction (unless using 2PC).
Futhermore, it's hard to manage rollbacks in case of rest call failure.

The structure can become really fragile easily.

[takatakboy]

Wow this is the easiest explainer of event driven architecture I've seen! Thank you so much. I used to work with WCF and MSMQ and I feel it's kinda the same except for the fact there's no broker that pushes the events to consumers. I'm kinda curious what the event message looks like in the event driven architecture way of things.

[SiiitiiFreelancing-jlty]

can you suppress that background barking kind of sound that emits from your laptop when you are running thru the slides

[codewithkashif]

Great tutorial! One important question -- Is there any difference between Event Driven Architecture and Reactive Programming?

[anaz]

You could decrease the background music