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Coupon Server Design That Withstands Traffic Spikes – 4-Week Completion Challenge, Cohort 1
Programming

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Back-end

Coupon Server Design That Withstands Traffic Spikes – 4-Week Completion Challenge, Cohort 1

In just 4 weeks, here's what you'll get

  • Ability to design and implement a first-come, first-served coupon issuance API without over-issuing coupons

  • Criteria for choosing the appropriate approach among pessimistic locking, Redis distributed locks, and Lua atomic operations depending on the situation

  • The ability to reproduce load with k6 and quantify performance improvements before and after optimization.

  • Designing Asynchronous Processing with Kafka and DLT Without Losing Failed Requests

  • SingleFlight and SWR Cache Strategies to Prevent Cache Stampedes

Starts Sep 28

28 days

Finish Oct 25

apiece님과 함께해요!

Inflearn Verified

Career Verified

2,031

Learners

75

Reviews

59

Answers

4.9

Rating

8

Courses

Hello, I’m Developer Hanjogak.
Having worked at Kakao and SK, I have designed and operated various backend systems in real-world service environments.

I share the problems and trial and error I encountered along the way, as well as the considerations involved in choosing technologies, through knowledge-sharing content.
From when and why to use a technology to the criteria for designing systems, I want to convey it all within a real-world context.

I hope the challenges and experiences I’ve faced help reduce your trial and error and
make better choices.

If there was anything you were curious about or found lacking while viewing the content, please feel free to let me know anytime.
I want to create better content based on your honest feedback.

Thank you.

apiece.dev.ai@gmail.com

More

9월

28일

챌린지 시작일

2026년 9월 28일 오전 12:00

챌린지 종료일

2026년 10월 25일 오후 11:30

챌린지 커리큘럼

All

5 lectures

Course Materials:

Recommended for
these people

Who is this course right for?

  • A junior backend developer who knows the theory but has never personally built a server that handles heavy traffic

  • Learners who want to work with large-scale traffic experiences

  • Someone who paid for the course but has been stuck in Section 1 for months.

Need to know before starting?

  • Experience building a simple REST API with Spring Boot is required.

  • It is helpful to be familiar with Kotlin or Java syntax. Practice code is provided in both languages.

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취소 및 환불 규정
챌린지는 지식공유자가 설정한 수업 최소 정원이 충족되지 않을 경우, 폐강 안내가 고지되며 결제 내역이 자동취소됩니다.

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