Nest.js & Kafkajs | Error Handling + Class Design

In this video we refactor our Kafkajs implementation to follow SOLID design principles and also implement error handling mechanisms like a retry & dead letter queue.
GitHub Repo: github.com/mguay22/nestjs-kafka
Kafka Quickstart: kafka.apache.org/quickstart
Original Tutorial: • Nest.js + Kafka Tutori...
Nest.js Starter Repo: github.com/mguay22/nestjs-sta...
Nest.js MongoDB Tutorial: • Setup MongoDB With Nes...
Timestamps
0:54 Introduction
4:10 Project Setup
5:30 Consumer Refactor
21:52 Producer Refactor
32:10 Retries
35:40 Dead Letter Queue
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[@mguay]

Get my highly-rated Udemy courses at a discount here: michaelguay.dev/udemy/

[@gitlit5489]

your videos are super cool, informative and entertaining, please don't stop

[@antoniomorga1824]

This is an amazing tutorial!! So direct and clear, keep it up!!

[@damaroro]

dude this crash course is great, please keep posting educational programming videos, this kind of content make youtube better !

[@kirakira160]

happy to see you Sir ! Please Dont stop videos

[@andresfcuellarc]

So great! amazing as allways!

[@AliAhmad-nn3mr]

you are awesome, your vides are out of the box

[@peonola300]

%100 would purchase a comprehensive nestjs/microservices course! Just an idea.

[@dglsromero]

great tutorial... Dont stop...

[@AnlGUNDAL]

Dude, you'r super good. Thank you so much.

[@mitchross2852]

oh nice you really did follow up!

[@QuangLe-hf3qd]

Very cool video 🙏

[@himesh_89]

Whoa, thanks for sharing.

[@akeebismailoyindamola4879]

this is a Great video
but I've a question, why is this Kafka module approach better than the nestjs kafka client module?

[@zulfikarisnaen7383]

Thank you!

[@DuyTran-ss4lu]

Suoer cool!

[@TharinduPerera-pc1ir]

I was wondering if you could do an Iac video with helm charts and values? Thanks.

[@TheWalrus_45]

Hi Michael, now that KafkaJS is no longer maintained, do you think you could do a follow up video showing how to switch to either node-rdkafka or confluent-kafka-javascript?

[@weavers-construction-solutions]

can you apply the same refactoring to the kafka microservice tutorial as it will help us a lot, thank you

[@sohailsiddique8567]

Sir you are amazing ❤ love from pakistan 🇵🇰

[@oyinlolaolasunkanmi]

Thanks

Does not Nestjs or kafka provide a built in retry config?

[@SAMEERSHAIKH-dw8rg]

How can we use the dlq later on ?

[@rajibkuet07]

In this pattern you created the instance of Kafka twice, one in producer class and another in consumer class with same brokers. I do not get it. Could you please clear me this!

[@TheWalrus_45]

Hi Michael, Great video! Quick Question: When would you trigger the processing of the DLQ?

[@mguay]

Hey Paul, thanks for your support. I'm assuming you're asking when would you actually deal with messages inside of the DLQ. This is actually a really good question that depends large on the nature of your consumer, I.e, is it idempotent? One strategy is to have a CRON job that continually checks the DLQ for any messages and replays them back onto the topic up to a certain number of times.
However I think this is a great question and open to suggestions.

[@TheWalrus_45]

Thanks!

[@mguay]

Thank you so much!