Learn the basics of backend and server development with Ktor, written in Kotlin.
129 learners
Level Basic
Course period Unlimited
Reviews from Early Learners
5.0
보키
Thank you! I enjoyed watching it. The way you write code & develop feels similar to mine, so it was nice to see..! - Appropriate layer separation - Core logic handled by services - Domain handles parts that need object responsibility - Writing SQL first before creating ORM persistence layer queries, etc. - Method placement, etc. I've been mainly using Line's JDSL recently, but I'm planning to apply Exposed to future side projects. I created one repo and kept updating to main without creating branches, so it's about 60 commits now! Now let me mention some areas that feel a bit lacking.. 1. Looking at the repo, it seems like you started in May 2024..! As of October 2025, Ktor is now up to version 3.3.0, so there are some changes..! Still, I think it would be great if you could add updates continuing from the last lecture about once every 3-6 months! 2. Besides global request/response interceptors, if there's common logic for specific operations, is there a way to apply it like Spring AOP? 3. If actually deployed to AWS, how much less CPU/RAM resources would it use compared to Spring..!? 4. Usually with JPA, we use Querydsl to handle dynamic queries safely, but I was disappointed that there wasn't coverage of how to handle dynamic queries in Exposed (only PathVariable, not dynamic queries created with QueryString) 5. For unit tests, slice tests, and e2e tests in Ktor, what's commonly used? I wrote about various things because I have many hopes..😊 Still, the course was really enjoyable to watch! I think I'll also consider Java with Spring+JPA+Querydsl(openfeign) and Kotlin with Ktor+Exposed going forward. Thank you.
5.0
saechimdaeki
I enjoyed watching it. Thank you for the great lecture.
5.0
ALPHA MOON
It was great to be able to understand Ktor. Thank you. It seems like it will be very helpful for basic server development. I will study the advanced version further.
Ktor Basic Usage
Kotlin ecosystem frameworks such as Koin, Exposed, etc.
Core Concepts of Web Server Development
Advanced Kotlin Language Concepts
Who is this course right for?
Those who want to acquire server development knowledge while developing Android
For those who want to compare Spring and Ktor directly
For those who want to learn about the technologies of the Kotlin ecosystem
For those who want to learn the core concepts of web server development
129
Learners
12
Reviews
8
Answers
4.9
Rating
1
Course
개발자가 될지 몰랐던 개발자 입니다.😅
지금은 딱 맞는 옷을 입고 있는 것 같습니다.
개발자를 꿈꾸는 여러분께 도움을 드리고 싶습니다.
- (현) 카카오 자회사 백엔드 엔지니어
- (교육활동) 패스트캠퍼스 온라인 강의
All
28 lectures ∙ (6hr 22min)
Course Materials:
3. About Ktor
12:14
All
12 reviews
4.9
12 reviews
Reviews 1
∙
Average Rating 5.0
Reviews 60
∙
Average Rating 5.0
5
Thank you! I enjoyed watching it. The way you write code & develop feels similar to mine, so it was nice to see..! - Appropriate layer separation - Core logic handled by services - Domain handles parts that need object responsibility - Writing SQL first before creating ORM persistence layer queries, etc. - Method placement, etc. I've been mainly using Line's JDSL recently, but I'm planning to apply Exposed to future side projects. I created one repo and kept updating to main without creating branches, so it's about 60 commits now! Now let me mention some areas that feel a bit lacking.. 1. Looking at the repo, it seems like you started in May 2024..! As of October 2025, Ktor is now up to version 3.3.0, so there are some changes..! Still, I think it would be great if you could add updates continuing from the last lecture about once every 3-6 months! 2. Besides global request/response interceptors, if there's common logic for specific operations, is there a way to apply it like Spring AOP? 3. If actually deployed to AWS, how much less CPU/RAM resources would it use compared to Spring..!? 4. Usually with JPA, we use Querydsl to handle dynamic queries safely, but I was disappointed that there wasn't coverage of how to handle dynamic queries in Exposed (only PathVariable, not dynamic queries created with QueryString) 5. For unit tests, slice tests, and e2e tests in Ktor, what's commonly used? I wrote about various things because I have many hopes..😊 Still, the course was really enjoyable to watch! I think I'll also consider Java with Spring+JPA+Querydsl(openfeign) and Kotlin with Ktor+Exposed going forward. Thank you.
Hello! It's been a really long time since I've left a reply. You're right, it's now been updated to version 3 and beyond, and the documentation has changed quite a bit since the course was filmed, so it looks like the course needs to be renewed haha I'll definitely work on preparing that! Since I haven't been able to update the course due to being overwhelmed with real-life parenting, I've lowered the course fee a bit out of guilt...ㅠhaha I'm glad to hear you enjoyed it - it makes me feel that all the hard work was worthwhile. Thank you!
Reviews 48
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Average Rating 5.0
Reviews 8
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Average Rating 4.8
Reviews 10
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Average Rating 4.9
5
I highly recommend ktor to anyone who is learning ktor for the first time or needs to introduce it to their company, as it provides easy instructions on everything needed to create a web application (application development, build, and deployment)!!!
Hello! I put a lot of thought into making this a useful lecture for those who are new to ktor. Thank you for your kind words! I hope you can apply it to your own projects. Thank you~!
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