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Workflow-Based Large-Scale Traffic Processing Techniques with Kakao Developers [ By. Non-CS Major & Kakao Developer ]

How to Handle Explosive Traffic Growth? Learn to build resilient and flexibly scalable architectures through practical design patterns based on EDA (Event-Driven Architecture) using Kafka, Spring, CDC, and Temporal. Explained clearly and simply with real-world experience from Kakao developers, making it understandable even for non-majors. A hands-on focused course covering real-time data flow, event processing, and microservice integration all at once!

(5.0) 11 reviews

306 learners

  • Hong
실습 중심
백엔드
백엔드이해하기
자격증
시험
Spring
Kotlin
MySQL
Kafka
EDA

Reviews from Early Learners

What you will learn!

  • Event-Driven Architecture (EDA) Design and Patterns

  • Kafka-based Message Queue and Asynchronous Data Pipeline Construction

  • Change Data Capture (CDC) and Real-time Data Synchronization Strategies

  • Distributed Workflow Orchestration and State Management Using Temporal

  • Spring Boot-based Asynchronous Processing and Microservice Integration Design

  • Modern Functional Programming Techniques Using Kotlin

Traffic suddenly surged.. The server load and all modules went down, what should I do?? 🤔

❗This content is from an actual conversation.❗

😄 Hong : I'm thinking about workflows - do you happen to know anything about them??

😁Kakao: Yeah, I know. Are you talking about something like Airflow?? So you're finally interested in workflow tools now. Your mentor is pleased.

😁 Startup Developer: Hey, I don't think that's it. Aren't you talking about task management at the client level, not that?

😄Kakao : Oh you're talking about something like Netflix Conductor, I use that often

😄Hong: So I've been using that lately, and it's really good stuff

😄Kakao : Yeah, if you do that, you can handle all the complex stuff through abstraction?? It's honestly amazing. Not many people probably know about it, but it's grown a lot. How did you find out about it?

😁 Startup Developer : Right, the kid was originally a total newbie

😄Kakao : If you use this, even if traffic suddenly explodes due to events or something, it's really stable because it's event-based. I use something else at my company, but honestly, it's really good to know

😄 Hong : You should have let me know if you knew ㅡㅡ Didn't we agree to mentor students?? Anyone who wants to build this together

😄Kakao : I'm going honestly, even people working at Kakao often don't know much about it, so I wondered why they wouldn't know. Since I've used it myself, I'm participating. There's also an open source called Temporal

😁 Startup Developer: I'm too lazy, so I'll just use tackle detection

😁 Toss : Oh what's this?? I briefly looked at the site and Temporal seems interesting too?? I think it would be good to introduce it, if you make a course I'll buy it and watch

😄Hong: 😆😆😆😆😆 I'll invite you, let's try making it once

What are some chronic issues with architectures like EDA and MSA, and what implementation methods are there for safety?? 🤔

Simply receiving and processing events?? This process is a concept that many people already know and handle. But what if this event fails?? Or how do we manage long code logic??


The answer lies in workflow orchestration. You can modularize and eventize business logic or data processing, allowing you to implement business logic with EDA-based code even when traffic surges. What if all of these processes - including monitoring and safe retry mechanisms - were supported through a single platform?? 🤷

Methods to complement modern MSA and EDA-based architecture, as well as how to eventize business logic and manage it safely - senior developers and I have gathered together to share all our know-how publicly.


Rather than a boring lecture that just lists theories, I've prepared this as a practical guide that allows you to completely master the core functions of workflow-based design by examining the operational processes together. 🚀

What makes this course special

📌Event offering 100 coupons

We would like to select 50 people from those who purchase during the mega sale period and provide them with 2 coupons each offering 50% off


This feature is not available as the event period has ended. Please note this information.

📌Lecture content that continues to be added based on your questions

The lectures will continue to be added to Chapter 8 based on the questions you ask. Whether they are questions about the lectures or unrelated questions, if you ask many questions, we will select useful ones and provide additional content on related topics exclusively to students for free.

  • (Free) Please refer to the notes before taking the course.

Features of this course

📌 A comprehensive course covering MSQ(Kafka), CDC(MySQL), and Temporal(workflow)

* We don't simply use just one platform. You can learn realistic platform utilization methods by also using additional platforms that are essential for building EDA and MSA.

📌 Platforms actually introduced and used by senior developers in real-world practice

* Like the conversation content at the beginning, you can learn about platforms that even developers working at Kakao don't know well, and gain competitive advantages accordingly.

📌 Rich course content with approximately 50 diagrams and lecture summary files

* This is not just a lecture that explains things with words alone, but also provides actual source code, diagrams, sequence diagrams, and additionally simple summary files of the lecture content.

📌 The shortcut from junior to senior..! System Design

* You will learn about the major drawbacks of currently popular architectures in the industry such as EDA and MSA, and the design approaches to maintain stability in response to these issues.

* When utilizing a Database, you will also learn about real-time data processing techniques.

The course covers this kind of content.🧩

* Real-time Data Synchronization Concepts and Necessity

* CDC Pattern with Kafka + Debezium

* Docker, how to build environments using lightweight images

* Why do we prefer Docker over Virtual Machines??

* Basic yet core concepts of Kafka

* Basic Concepts of Kafka Producer & Consumer

* Message Delivery Guarantee in Kafka

* Core CDC Basic Concepts and Necessity for Real-time Synchronization

* Why is MySQL Binary Log-based CDC effective?

* Debezium: A Binary Log-Based CDC Implementation Platform

* Workflow for stable production server

* Temporal's Core Concepts: Workflow and Activity

* Implementing Kafka and Workflow with Spring Boot and Kotlin

* MySQL Table Creation and Kafka Connector Configuration Methods

This is recommended for these types of people 👨‍🏫

🎯 Non-CS major developers who want to challenge themselves with large-scale traffic system design

🎯 For those who have heard about Kafka, CDC, and Temporal but didn't know specific design methods

🎯 Backend developers at startups/large companies who are concerned about traffic scalability and fault resilience

🎯 For those who want to learn workflow-level service design beyond simple microservices

Related Resources 🚀

The person who created this course 🤭

  • A developer who started as a non-major and is currently working as a platform backend developer in Pangyo

  • The goal is to teach realistic development methods and development theories, and I am a knowledge sharer who creates courses together with capable acquaintances around me, not alone

  • A knowledge sharer who conducted an interview at Inflearn thanks to their diligent activities

  • A computer engineering major who graduated from a university in Seoul

  • Having worked in the first-tier financial sector, I am currently a developer working as a backend and data engineer at Kakao

  • A developer who creates various courses with Hong and contributes to providing realistic knowledge and environments

  • The only valuable talent in this team who has experience using Workflow

Reference Notes

Practice Environment

  • java

    • Java(TM) SE Runtime Environment (build 17.0.12+8-LTS-286)

  • docker, docker-compose

    • Docker version 28.0.0, build f9ced58158

    • Docker Compose version 2.33.1

  • IDE

    • IntelliJ IDEA

  • OS

    • Apple M3 Air

This course is planned to have its discount rate adjusted over time to provide greater discounts to those who purchase early. Please take note of this.

  • 1st round (9.7 ~ 9.11): 70%.

  • 2nd Round (9.12 ~ 9.16): 60%

  • 3rd (9.17 ~ 9.20): 50%

Recommended for
these people

Who is this course right for?

  • Backend developer looking to build real-time data pipelines

  • An engineer interested in data consistency and synchronization in distributed systems

  • Developers interested in microservices architecture design

  • Developers challenging microservices and distributed system design

  • A backend developer concerned about the scalability of systems that handle large-scale traffic

  • A developer who wants to learn how to implement real-time event processing and data synchronization by integrating MySQL and Kafka

  • Non-major students and junior developers who find studying difficult as job seekers

  • A server developer experiencing real-world work while being afraid of having no practical experience

Hello
This is

2,900

Learners

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Reviews

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Answers

4.5

Rating

14

Courses

자기 소개

집에서 빈둥대다 개발에 흥미를 느껴 개발 공부를 시작하였고 현재는 판교에서 플랫폼 서버 개발을 담당하여 진행하고 있습니다.

 

제가 공부를 했던 방법과 실무에서 접하실 수 있는 여러가지 문제점들과 해결책을 여러분들에게 제공하고 싶어 지식공유자 활동을 이어나가고 있습니다.

 

강의는 오로지 저만의 지식을 통해 만들어지지 않습니다. 모든 강의는 함께하시는 분들이 계십니다.

 

지식공유자 경력

[前] 샌드박스 블록체인 개발자

[前] 넥슨 자회사 백엔드 개발자

[] 판교에서 고여가는 서버 개발자

 

인터뷰 이력

Curriculum

All

27 lectures ∙ (4hr 51min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

11 reviews

5.0

11 reviews

  • tttos님의 프로필 이미지
    tttos

    Reviews 6

    Average Rating 5.0

    5

    96% enrolled

    Tôi là một developer đang phát triển server tại Toss và gần đây đã cùng Hong tạo ra khóa học MySQL. Anh chàng Hong quyến rũ lại đã dụ dỗ bạn từ Kakao để tạo ra khóa học workflow này!! Workflow mà tôi biết chỉ có Airflow thôi, nhưng đây là lần đầu tiên tôi thấy nội dung có thể triển khai ở cấp độ client bằng cách sử dụng open source. Đối với tôi đây cũng là chủ đề khá hữu ích nên tôi đã xem rất thú vị. Mong mọi người quan tâm nhiều đến khóa học này và cũng mong mọi người quan tâm nhiều đến khóa học tiếp theo. Tôi sẽ cùng Hong tạo ra những chủ đề hay ho.

    • jhong
      Instructor

      Đàn ông quyến rũ là sao... Ý anh là gì vậy 😆😆😆😆 Với tư cách là học trò, em sẽ học hỏi nhiều. Cảm ơn anh.

  • ddddve님의 프로필 이미지
    ddddve

    Reviews 6

    Average Rating 5.0

    5

    93% enrolled

    Tôi là một server developer đang phát triển tại Kakao, người duy nhất trong số các developer cung cấp bài giảng cùng với Hong có hiểu biết và đã sử dụng workflow~~ Chính vì vậy mà tôi đã tham gia sâu nhất vào bài giảng này. Thực ra Hong đã từng đề cập đến các kiến trúc như Kafka hay Debezium (CDC) trước đây rồi. Thêm vào đó, tôi đã chuẩn bị một chủ đề bao gồm cả việc đưa workflow vào để tăng tính an toàn trong kiến trúc tổng thể dựa trên EDA. Hy vọng bài giảng này sẽ giúp ích nhiều cho các bạn 😊😊 Chúng tôi sẽ nỗ lực để Hong có thể cùng cung cấp những bài giảng bổ ích và tốt hơn nữa cho các bạn. Mong các bạn tham gia nhiều vào event!! Và hãy mong chờ bài giảng tiếp theo nhé!! Chúc các bạn một ngày tốt lành~

    • jhong
      Instructor

      Lần sau chúng ta cùng tạo ra những bài giảng bổ ích hơn nữa nhé 😊😊

  • de님의 프로필 이미지
    de

    Reviews 10

    Average Rating 5.0

    5

    96% enrolled

    Đã xem nội dung hay quá...!! Tôi đã xem nhiều bài giảng khác của người chia sẻ, và có vẻ như lúc nào cũng học được nhiều điều. Cảm ơn bạn!

    • jhong
      Instructor

      Xin chào devHand, cảm ơn bạn rất nhiều vì đã để lại đánh giá tốt!! Tôi sẽ cố gắng để có thể cung cấp những bài giảng bổ ích hơn nữa trong tương lai! Chúc bạn có một ngày tốt lành!

  • hoos983485067님의 프로필 이미지
    hoos983485067

    Reviews 10

    Average Rating 5.0

    5

    89% enrolled

    Nội dung này thực sự rất chạm đến trái tim vì nó phản ánh những gì mà những người độc đáo nhất và giỏi phát triển thực tế nhất trên Inflearn đang trăn trở. Tôi đã học được rất nhiều điều hay từ nội dung tuyệt vời này.

    • jhong
      Instructor

      Xin chào Hoos, cảm ơn bạn đã để lại đánh giá. Tôi thấy rất xấu hổ.. Tôi sẽ cố gắng tạo ra những khóa học tốt hơn trong tương lai. Cảm ơn bạn!!

  • gsu002845933님의 프로필 이미지
    gsu002845933

    Reviews 2

    Average Rating 5.0

    5

    89% enrolled

    Có vẻ như đây là một trong những khóa học tốt nhất trên Inflearn.. So với các chia sẻ viên nổi tiếng khác thì có vẻ như anh không nổi tiếng lắm, nhưng nội dung thì có vẻ tốt hơn nhiều. Tôi cảm thấy đã học được rất nhiều từ một senior developer có kỹ năng phát triển quá xuất sắc và có quan điểm rất hay. Cảm ơn vì khóa học tuyệt vời.

    • jhong
      Instructor

      Xin chào su gis, cảm ơn bạn đã để lại đánh giá tốt!! Ôi trời, tôi có gì đâu mà bạn lại để lại đánh giá tốt như vậy, thật là xấu hổ quá 😊😊 Tôi sẽ cố gắng trở thành một developer và người chia sẻ kiến thức có thể mang đến những khóa học bổ ích hơn nữa cho các bạn. Cảm ơn bạn!

$61.60

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