Building a Chat Platform Using Spring Boot

Name: Building a Chat Platform Using Spring Boot
Price: 40040 KRW
Rating: 3.9 (27 reviews)

You can learn about JWT and ws communication using Spring Boot, and how to handle high TPS.

(3.9) 27 reviews

286 learners

Hong

tps

실습 중심

채팅프로그램

Spring Boot

JWT

websocket

MySQL

JPA

Reviews from Early Learners

What you will gain after the course

Basic Structure of Spring Boot
Stateful server using ws communication
Cookie Management and Authentication with JWT

Handling high-volume chat TPS with Spring Boot 😘

In this lecture, you will learn how to configure and manage services using the ws protocol, which is typically used in platforms where chat services are included.

Chijijik , AfreecaTV, You may want to refer to Twitch , etc.

This lecture is structured around configuring services directly using Spring Boot and Next.js, and authentication methods using JWT. If you take this lecture, you will be able to learn more about Spring Boot and ws protocol.

What is the difference between HTTP and WS? 😘

I think that up until now, you have mainly dealt with HTTP Protocol and carried out development.

Of course, in actual practice, HTTP is mainly used. However, there are various communication methods such as TCP, RPC, and WS, and you should be able to build a service by flexibly applying them depending on the situation.

So what are the typical differences between HTTP and WS? To put it simply, you can think of it as the difference between Stateless and Stateful.

You can understand it as the difference between whether the connection with the client is persistent or general. If you don't understand the article, if you take my lecture and learn, you will be able to fully understand it.

Practice environment

The lecture explains based on MacOS (M1).
In this course we will use Spring Boot and Next.js.
- The video was taken for the purpose of learning server developers. Please note that only templates are provided for Next.js.
This lecture aims to provide a learning direction for students. It is structured as a lecture that implements basic functions but leaves TODOs for later, so it would be good to refer to the TODOs for additional learning.
- The TODO part is left in README.md .
IDE uses Goland and vscode.

Recommended for
these people

Who is this course right for?

Someone new to Spring Boot
Those curious about non-HTTP protocols

Need to know before starting?

Spring Boot
Network Fundamentals

Hello
This is

4,653

Learners

341

Reviews

120

Answers

4.7

Rating

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.

카카오에서 서버 개발하고 계시는 초이
토스에서 개발하고 계시는 서버 개발자
유니콘 스타트업에서 개발도 하고, DB도 관리하시는 능력자

지식공유자 경력

[前] 샌드박스IP 관련 블록체인 개발자

[前] 메타버스 백엔드 개발자

[現] 판교에서 고여가는 서버 개발자

인터뷰 이력

저에게 지식공유는 '습관'이에요

Curriculum

All

29 lectures ∙ (3hr 46min)

Course Materials:

Lecture resources

Section 1. Introduction to the course

2 lectures ∙ (5min)

1. Lecture introduction
05:38
2. Source Code [Please refer to TODO for future updates]

Section 2. Organizing a project

4 lectures ∙ (30min)

3. initializer & build dependencies
07:33
4. Server environment management using yaml
05:08
5. MySQL Transaction Manager Config
09:47
6. Configuration of HTTP and WebSockets
07:32

Section 3. Writing an HTTP Router for Auth

6 lectures ∙ (50min)

7. Injecting classes into Swagger & API
08:34
8. About Entity and Lazy Fetch
09:00
9. Configuring a Service Using JPA
09:57
10. Hashing Passwords Using SHA-256
05:42
11. Customizing RunTimeException
09:19
12. Finishing up the basics of Auth API
08:14

Section 4. All About JWT

5 lectures ∙ (37min)

Section 5. Using WebSocket Protocol in Spring Boot

7 lectures ∙ (51min)

Section 6. Working on additional code to complete the service

2 lectures ∙ (23min)

Section 7. Run it yourself and debug it together

2 lectures ∙ (20min)

Section 8. TODO List for a more robust project

1 lectures ∙ (6min)

Published:

Last updated:

Reviews

All

27 reviews

3.9

27 reviews

maintainker
Reviews 3
∙
Average Rating 4.3
4
100% enrolled
It was a really good lecture. There are a lot of good contents such as good examples and testable methods for WS and API. However, the regrettable thing is that there are some things that need to be done first, such as DB settings and IDE settings if using vscode, but they are not listed. Another thing is that there are code examples, but the explanations for them are lacking. When modifying, there is a lot of explanation about why the modifications were made. However, as the last sentence says, developers are problem solvers, so it was a good enough lecture for those who can search and solve problems. Thank you.
- jhong
  Instructor
  Hello, thank you for watching the lecture. I wanted to give you more satisfaction, but I'm sorry that there are some shortcomings. ㅠㅠ Since I felt that such a perspective was very helpful in the process of studying development on my own and actually getting it done, rather than copying and pasting code written by someone else, I think this part naturally became part of the lecture. I don't think a developer is someone who simply copies and pastes code written by someone else. I think a good developer is someone who understands the concept and considers the possible trade-offs that may occur while applying the concept. To be honest, I didn't want to tell you everything. ㅎㅎ I wanted to teach you the habit of trying things out on your own. I will come back with a better lecture in the future. It's very cold, so take care of your cold and thank you :)
100yen
Reviews 23
∙
Average Rating 4.8
4
100% enrolled
First of all, thank you for the lecture. I enjoyed it! However, I would like to carefully share some of the parts that I was disappointed with. The most disappointing thing is that the composition was somewhat scattered. Since the test was performed at the end after implementing all the functions instead of checking them in the middle, I should say that there was no conclusion for each function.. Since there was no conclusion for each point, I felt very disoriented when I had to return to implementing other functions. The tool was also disappointing. You may use vscode for some reason, but there were many times when the flow was interrupted due to frequent import errors, etc. I personally wondered if there was a reason to proceed with vscode. Lastly, I think it would have been better if there had been more selection and focus. The title of the lecture is "Creating a Chat Platform Using Spring Boot". Since it is basically a 'chat platform', I thought the lecture would naturally focus on web sockets, but I was disappointed that there were many parts omitted. However, it was great to be able to follow along step by step with the parts that I hadn't thought of when creating a chat platform, such as the need for slightly complex SQL statements and the parts that I might have missed in DB design. I could tell right away that you are a very capable developer throughout the lecture, but I wrote a bit too much because I wanted you to be a better instructor. I think it would be really great if the lecture structure was just a little bit more refined!
- jhong
  Instructor
  Hello. Thank you for leaving a good review. I considered a method of conducting tests one by one, but I wanted to show you the test by linking it to the actual Front, so I prepared the lecture like this. ㅠㅠ I will refer to that part more from next time. The reason I used VsCode as an IDE is because I thought there might be some people who are less familiar with it, so I used an IDE that is used as much as possible. JetBrains is good, but I thought that VsCode would be used for more parts. When preparing a lecture on the web socket function for chat, I thought that there was too little for you to gain if I only covered that topic. As a result, the lecture topic tended to be a little distracting. ㅠㅠ I apologize for that. Thank you again for leaving a good review, and I will come back with a more fun and meaningful lecture in the future. Thank you!!
dkstmdwn176216
Reviews 37
∙
Average Rating 4.8
5
100% enrolled
The lecture itself was good because it could be watched in 3~4 days even if you invested a lot of time. If you watch it quickly, you can probably watch it in about a day. The lecture content is about creating a simple provider for authentication and processing it, and although it is not the main content, I was able to briefly learn about the jwt authentication method. Regarding chat, he explained the pub sub model, and he explained method A and a little about B. He told me about how to find it myself and do it, like an open ending? As I continued to work, I realized that in practice, there are many times when I spend a lot of time on really ridiculous things. Especially when it comes to error handling. The lecture goes by quickly, but the instructor often makes mistakes. For example, when creating a usercredential entity, declaring the table name as "user", or using a different name for the mapping method, causing a 404 error on the front. create_at -> The part that needs to be declared as created_at When a problem occurs, I liked the part where you can find and solve it yourself before watching the lecture on solving errors, and it also feels a bit practical. ㅎㅎ Beginners may wonder why it doesn't work. And this is not a lecture that says you can service a chat application after watching one lecture. I want to complete a complete chat service. !
- jhong
  Instructor
  Hello, thank you for leaving a good review. Your time and mine are both precious. I aimed to implement the functions as much as possible. If you implement the functions like this, the secondary parts will follow to some extent. So I focused on implementing the core functions, and rather than a completely finished lecture, I want to show you a more human side by debugging together. Since no one is perfect in the world, it's okay if there are mistakes and bugs. I also thought a little about the perfect application, and I concluded that making it by only following the parts I tell you is not a good way to study, so I wanted to provide you with a TODO list and parts that you can think about later. Feel free to ask questions during this process. I will continue to visit you with good lectures. Thank you. :)
wsde43665
Reviews 24
∙
Average Rating 5.0
5
100% enrolled
I tried to apply it to my current side project. As someone who has only worked on the backend, I understand the code and the ws communication of connecting to ws using WebSocket and STOMP and exchanging chat messages, but I was very confused when I connected to the actual front end by simply turning on port 3000 without setting up a file. I couldn't load package.json in WebStorm, so I just created a new project and copied and pasted all the files in the client package, but I had various dependency issues, react version issues, createContext issues, etc. As someone who has only worked on the backend, I have no idea how to turn on the port 3000 server.... As a backend developer, I learned how to use clean Swagger annotations and the WebSocket - STOMP for chat. I haven't tried the chat yet....
- jhong
  Instructor
  Hello. Thank you for leaving a comment. Since the template part is a part of the front-end work, I thought it would be too easy to convey incorrect knowledge if I, a back-end developer, handled it. Since I only knew how to do it to some extent, I used it as a UI for testing. However, it seems that you are having a lot of trouble with version conflicts and running it 😭😭 When preparing the next lecture, I will try to configure it so that you can use it more easily by using Docker to handle it as an image to prevent version conflicts. Thank you.
yuhojin8037329
Reviews 6
∙
Average Rating 5.0
5
90% enrolled
I am a junior who uses Spring in my work. I took the course because I was curious about the lecture, and it was good because I could learn both HTTP and Socket communication. In the case of HTTP, everyone uses it, and I know JPA to some extent?? So I took the course with the idea of reviewing it. I didn't deal with Socket, but I was able to briefly understand why it should be used, in what situations it is efficient, and why it is efficient. I was also able to implement a simple implementation accordingly. Rather than feeling like the lecture taught me everything, I felt like it showed me the right path. It felt like it taught me what development methods and what I should study for development. Thank you for the great lecture.
- jhong
  Instructor
  Hello, thank you for your kind words. I prepared the lecture while covering the basics of configuring the platform. I feel good because it seems like you have drawn a rough study direction and picture yourself. I will come back with a good lecture in the future. Thank you :)

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More Java, different ways to manipulate code

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Have you ever wondered "how" the many Java libraries and frameworks you use provide this functionality? In this course, learn how to manipulate various codes or objects provided by Java and take your Java skills to the next level.

초급

Java, Spring, JPA

More Java, different ways to manipulate code

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Building a Chat Platform Using Spring Boot

Reviews from Early Learners

What you will gain after the course

Handling high-volume chat TPS with Spring Boot 😘

What is the difference between HTTP and WS? 😘

Can't we just implement websocket with HTTP ? 🤔

Learn these things 😘

1⃣ Server configuration using Spring Boot by Pangyo developer

2⃣ Injection modeling using JPA and Bean

3⃣ Providing practice templates using Next.js and Typescript

4⃣ Data Management Using MySQL

It has these features 😘

1⃣ A project that is structured by writing code together with actual developers.

2⃣ JWT format and its components

3⃣ Differences between WebSocket and HTTP and Reasons for Resource Saving

4⃣ Debugging together for implemented projects

Things to note before taking the class

Practice environment

Recommended for
these people

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Curriculum

Reviews

Hong's other courses

Similar courses

Building a Chat Platform Using Spring Boot

Reviews from Early Learners

What you will gain after the course

Handling high-volume chat TPS with Spring Boot 😘

What is the difference between HTTP and WS? 😘

Can't we just implement websocket with HTTP ? 🤔

Learn these things 😘

1⃣ Server configuration using Spring Boot by Pangyo developer

2⃣ Injection modeling using JPA and Bean

3⃣ Providing practice templates using Next.js and Typescript

4⃣ Data Management Using MySQL

It has these features 😘

1⃣ A project that is structured by writing code together with actual developers.

2⃣ JWT format and its components

3⃣ Differences between WebSocket and HTTP and Reasons for Resource Saving

4⃣ Debugging together for implemented projects

Things to note before taking the class

Practice environment

Recommended for these people

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Curriculum

Reviews

Hong's other courses

Similar courses

Recommended for
these people

Hello
This is